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growth of chrysomya putoria blowfly larvae in relation to dietary casein concentration. 19911768894
ovarian development in the blowflies chrysomya putoria and c. megacephala on natural diets.fresh human, chicken and cattle faeces were compared as diets for adult female blowflies chrysomya megacephala (fabricius) and c.putoria (wiedemann) (diptera: calliphoridae). as controls, sugar and raw beef liver were used. for females of both species, fresh beef liver was the best of these diets: oogenesis was completed in 10-13 days. human or chicken faeces facilitated slower oogenesis in 27-48 days. on a diet of cattle faeces, c.putoria females began vitellogenesis only 17 days after emergenc ...19892519675
the tropical african latrine blowfly, chrysomya putoria (wiedemann).the status of the tropical african latrine blowfly chrysomya putoria (wiedemann, 1830) is recognized as distinct from the sub-tropical african blowfly c.chloropyga (wiedemann, 1818) (diptera: calliphoridae). the biology of c.putoria in laboratory culture is described briefly with emphasis on the differences in development found in three strains of this species from tanzania, liberia and brazil. all three strains were reproductively compatible and there was no evidence of f1 hybrid sterility or h ...19882980184
[the synanthropy of the calliphorids (insecta, diptera) of curitiba, paraná, brazil].the calliphorids synantropics were studied in three different environments--urban, rural and forest area--in metropolitan region of curitiba, paraná, brazil during october and december of 1996 to estimate the abundance, preferences of the adults to baits (fresh fish, bird liver and human faeces) and the synanthropic index for the most abundant species. a total of 3399 calliphorids of 13 different species were sampled: phaenicia eximia (wiedemann, 1819), phaenicia cuprina (wiedemann, 1818), phaen ...19989697653
a checklist of arthropods associated with pig carrion and human corpses in southeastern brazil.necrophagous insects, mainly diptera and coleoptera, are attracted to specific stages of carcass decomposition, in a process of faunistic succession. they are very important in estimating the postmortem interval, the time interval between the death and the discovery of the body. in studies done with pig carcasses exposed to natural conditions in an urban forest (santa genebra reservation), located in campinas, state of são paulo, southeastern brazil, 4 out of 36 families of insects collected - c ...200010656720
age structure and abundance in populations of muscoid flies from a poultry facility in southeast brazil.muscina stabulans, m. domestica, chrysomya putoria, c. megacephala and stomoxys calcitrans were the most abundant muscoid flies captured in a poultry facility in southeastern brazil. we examined the gonadotrophic profiles of the females caught at different sites and different times and found that mu. stabulans and m. domestica, the predominant species, presented similar gonadotrophic profiles only when captured on the manure under the cages, but very different and sometimes opposite gonadotrophi ...200010733750
c-banding and fish in chromosomes of the blow flies chrysomya megacephala and chrysomya putoria (diptera, calliphoridae).the blow flies chrysomya putoria and c. megacephala have 2n=12 chromosomes, five metacentric pairs of autosomes and an xx/xy sex chromosome pair. there are no substantial differences in the karyotype morphology of these two species, except for the x chromosome which is subtelocentric in c. megacephala and metacentric in c. putoria and is about 1.4 times longer in c. putoria. all autosomes were characterized by the presence of a c band in the pericentromeric region; c. putoria also has an interst ...200111313646
determination of drug levels and the effect of diazepam on the growth of necrophagous flies of forensic importance in southeastern brazil.larvae of chrysomya albiceps (wiedemann) and chrysomya putoria (wiedemann) (diptera: calliphoridae) were reared on tissues from rabbits administered twice the lethal dosage of diazepam in order to study the effects of this drug on the development of these two species. the rabbits were given 50mg of diazepam via ear vein infusion. from 18 to 54h, larvae feeding on tissues containing the drug developed more rapidly than larvae from the control colony for both fly species. the time required for pup ...200111457622
methods for the recovery of mitochondrial dna sequences from museum specimens of myiasis-causing flies.mitochondrial dna (mtdna) sequences from eight species of myiasis-causing flies, stored for up to 50 years, were amplified successfully. universal primers were used to amplify six specific regions from total genomic dna, including five mtdna genes. the comparison of phenol/chloroform, dnazol and chelex techniques for dna extraction showed that the dnazol reagent was the most efficient in retrieving dna from museum specimens, although the chelex extraction procedure is currently the most frequent ...200211963980
[muscoid dipterans as helminth eggs mechanical vectors at the zoological garden, brazil].to assess muscoid dipterae species who are able to carry helminth eggs and larvae and to evaluate the potential contamination of trapped dipterae.200212471387
recent african derivation of chrysomya putoria from c. chloropyga and mitochondrial dna paraphyly of cytochrome oxidase subunit one in blowflies of forensic importance.chrysomya chloropyga (wiedemann) and c. putoria (wiedemann) (diptera: calliphoridae) are closely related afrotropical blowflies that breed in carrion and latrines, reaching high density in association with humans and spreading to other continents. in some cases of human death, chyrsomya specimens provide forensic clues. because the immature stages of such flies are often difficult to identify taxonomically, it is useful to develop dna-based tests for specimen identification. therefore we attempt ...200415642013
[synanthropic flies (diptera: cyclorrapha) and their microhymenoptera parasitoids (insecta: hymenoptera) at monte mor poultry production system, são paulo, brazil].a survey of synanthropic flies and their microhymenopteran parasitoids was conducted at the capuavinha poultry farm, municipality of monte mor, state of são paulo, brazil, from 1991 to 1992. bird manure samples were collected biweekly for examined and selected by the following methods: flotation in water, dissected pupae, and sentinel pupae. the species of flies more abundant were: chrysomya putoria (wiedeman) (41.2% - calliphoridae), muscidae: muscina stabulans( fallén) (27.3%), musca domestica ...200616834896
biological activity of bacillus thuringiensis strains against larvae of the blowfly chrysomya putoria (wiedemann) (diptera: calliphoridae).different strains of bacillus thuringiensis berliner were proved to be a powerful biologic insecticide against larvae of several insect orders. due to the epidemiological importance of blowflies of the chrysomya robineau-desvoidy genus in the production of secondary cutaneous myiasis and mechanic transmission of pathogenic agents, the performance of two strains of b. thuringiensis (lfb-fiocruz 907 and lfb-fiocruz 856) was tested against larvae of chrysomya putoria (wiedemann). the lfb-fiocruz 90 ...200617273719
malignant tumor affects the developmental pattern of feeding larvae of chrysomya albiceps (wiedemann) and chrysomya putoria (wiedemann) (diptera: calliphoridae).larvae of chrysomya albiceps (wiedemann) and chrysomya putoria (wiedemann) were reared on liver tissues from a rabbit that had a malignant tumor in the thoracic cavity. larval rearing of both blowfly species was conducted at ambient temperature. larvae that fed on tissues from the rabbit with the tumor developed at significantly faster rates than those feeding on tissues from the control animal.200717710335
identification of fly eggs using scanning electron microscopy for forensic investigations.forensic entomology is the science that studies the role of insects in decomposing corpses and one of the most common uses is to estimate the post-mortem interval (pmi) based on insect activity on a decomposing body. usually, flies are the first insects to reach a carcass and are able to oviposit on carrion within a few hours after death. scanning electron microscopy (sem) gives detailed information about morphological characters helping to identify the immature forms of flies and consequently s ...200818353656
models of development for blowfly sister species chrysomya chloropyga and chrysomya putoria.developmental curves for the sister species chrysomya chloropyga (wiedemann, 1818) and chrysomya putoria (wiedemann, 1830) (diptera: calliphoridae) were established at eight and 10 different constant temperatures, respectively, using developmental landmarks and body length as measures of age. the thermal summation constants (k) and developmental threshold (d(0)) were calculated for five developmental landmarks using a previously described method. isomorphen and isomegalen diagrams were also cons ...200919239614
microsatellite markers for population genetic studies of the blowfly chrysomya putoria (diptera: calliphoridae).the investigation of the genetic variation and population structure of chrysomya species is of great interest for both basic and applied research. however, very limited genetic information is available for this genus across its geographical distribution. here, we describe 12 polymorphic microsatellite loci isolated from chrysomya putoria with expected heterozygosities ranging from 0.1402-0.8312. these markers are of potential applied interest for forensic entomologists and for the characterisati ...200920027477
insects (diptera) associated with cadavers at the institute of legal medicine in pernambuco, brazil: implications for forensic entomology.increasing rates of unsolved homicides in brazil prompt the need for applied entomological data to be used as a complementary tool by criminal investigators. in that context, we analyzed the occurrence of forensically important insect species (order diptera) on 14 cadavers taken into the institute of legal medicine (ilm), in pernambuco, brazil, according to the conditions of the body and the pattern of colonisation by insects. simultaneously, we surveyed the diversity of insects in the surroundi ...201020181449
the mitochondrial genome of the common cattle grub, hypoderma lineatum.the mitochondrial dna of the cattle grub hypoderma lineatum (de villers) (diptera: oestridae) was completely sequenced. the entire molecule was 16,354 bp long and presented a heavy bias towards a + t, which accounted for 77.8% of the whole genome. hypoderma lineatum genes were organized in the same order and orientation as in the mitochondrial genomes available for other species belonging to the oestroidea superfamily and compared in this study [chrysomya putoria (wiedemann), cochliomyia hominiv ...201020497317
effect of nandrolone decanoate on the development of three species of chrysomya (diptera:calliphoridae), flies of forensic importance in brazil.necrophagous insects are valuable tools for postmortem interval (pmi) estimation or for determining the cause of death. due to the increase in deaths related to drug abuse, it is crucial to know how these substances affect the development of flies that feed on corpses, to avoid errors in the pmi estimates. this study evaluated the effect of nandrolone decanoate, an anabolic androgenic steroid, on the development ofimmatures of chrysomya megacephala (f.), chrysomya putoria (wiedemann), and chryso ...201121337956
bionomics of two forensically important blowfly species chrysomya megacephala and chrysomya putoria (diptera: calliphoridae) reared on four types of diet.the use of heterogeneous animal tissues for the rearing of necrophagous insect species can produce uneven biological data, which can compromise the determination of larval age and, consequently, estimates for post-mortem intervals. we investigated the development of two species, chrysomya megacephala and chrysomya putoria (diptera: calliphoridae), reared on four substrates: minced beef (control) and semi-synthetic diets with the addition of sardine, rumen or chicken eggs. no differences in total ...201121489729
survival of submerged blowfly species and their parasitoids: implications for postmortem submersion interval.pupal survival of three blowfly species, chrysomya albiceps, chrysomya megacephala, and chrysomya putoria (diptera: calliphoridae) and the parasitoid species nasonia vitripennis (hymenoptera: pteromalidae) was studied after the pupae were experimentally submerged in water. non-parasitized pupae at different developmental stages, 0, 24, 48, and 72h, and parasitized pupae after 3, 8, 10, and 12 days of development were submerged for 6, 24, 48, or 72h. control groups for each pupal developmental st ...201121723056
morphology and identification of first instars of african blow flies (diptera: calliphoridae) commonly of forensic importance.scanning electron microscopy images of the first instars of calliphora croceipalpis jaennicke, 1876; chrysomya chloropyga (wiedemann, 1818); chrysomya marginalis (wiedemann, 1830); and chrysomya putoria (wiedemann, 1830) (diptera: calliphoridae) are presented for the first time, and the following morphological structures are documented: pseudocephalon, antenna, maxillary palpus, facial mask, labial lobe, thoracic and abdominal spinulation, spiracular field, posterior spiracles, and anal pads. li ...201121845931
Amplified fragment length polymorphism confirms reciprocal monophyly in Chrysomya putoria and Chrysomya chloropyga: a correction of reported shared mtDNA haplotypes.Reinvestigation of mitochondrial haplotypes previously reported to be shared between the Afrotropical blowflies Chrysomya putoria Weidemann and Chrysomya chloropyga Weidemann (Diptera: Calliphoridae) revealed an error resulting from the misidentification of specimens. Preliminary amplified fragment length polymorphism (AFLP) analysis of the original and additional individuals again failed to find reciprocal monophyly, leading to a re-examination of the specimens for diagnostic male genitalic cha ...201121929582
preliminary studies developing methods for the control of chrysomya putoria, the african latrine fly, in pit latrines in the gambia.to explore ways of controlling chrysomya putoria, the african latrine fly, in pit latrines. as pit latrines are a major source of these flies, eliminating these important breeding sites is likely to reduce village fly populations, and may reduce the spread of diarrhoeal pathogens.201223198767
detection and preliminary physico-chemical properties of antimicrobial components in the native excretions/secretions of three species of chrysomya (diptera, calliphoridae) in brazil.antibiotic-resistant bacteria in hospitals and communities increasingly threaten public health in brazil and the rest of the world. there is an urgent need for additional antimicrobial drugs. calliphorid blowfly larvae are a rich source of antimicrobial factors but the potential of neotropical species has been neglected. this preliminary study evaluates the antimicrobial activity of the native excretions/secretions of larvae of three species of brazilian calliphorids, chrysomya megacephala, chry ...201525817237
chrysomya putoria, a putative vector of diarrheal diseases.chrysomya spp are common blowflies in africa, asia and parts of south america and some species can reproduce in prodigious numbers in pit latrines. because of their strong association with human feces and their synanthropic nature, we examined whether these flies are likely to be vectors of diarrheal pathogens.201223133694
rates of development of immatures of three species of chrysomya (diptera: calliphoridae) reared in different types of animal tissues: implications for estimating the postmortem interval.blowflies have major medical and sanitary importance because they can be vectors of viruses, bacteria, and helminths and are also causative agents of myiasis. also, these flies, especially those belonging to the genus chrysomya, are among the first insects to arrive at carcasses and are therefore valuable in providing data for the estimation of the minimum postmortem interval (pmimin). the pmimin can be calculated by assessing the weight, length, or development stage of blowfly larvae. lack of i ...201425082014
assessment of the abundance and diversity of calliphoridae and sarcophagidae (diptera) in sites with different degrees of human impact in the iberá wetlands (argentina).the aim of the present study was to explore the diversity and describe the spatial distribution of calliphoridae and sarcophagidae along an urbanization gradient in the iberá wetlands. the flies were collected at 18 sampling points, three per site. in total, 3,318 flies were collected (3,077 blow flies and 241 flesh flies), distributed in 13 genera and 33 species. calliphoridae was the most abundant, comprised 92.74% of all adult flies. chrysomya albiceps (wiedemann), cochliomyia macellaria (f.) ...201627106933
developmental rates of immatures of three chrysomya species (diptera: calliphoridae) under the effect of methylphenidate hydrochloride, phenobarbital, and methylphenidate hydrochloride associated with phenobarbital.entomotoxicology is focused on obtaining data on necrophagous entomofauna, for criminal investigations purposes. this study aimed to evaluate the effect of different concentrations of methylphenidate hydrochloride, phenobarbital, and their association on the developmental rate, larval and pupal survivorship, and the interval of emergence of adults of chrysomya albiceps (wiedemann), chrysomya megacephala (fabricius), and chrysomya putoria (wiedemann) (diptera: calliphoridae). considering the ther ...201424633905
effect of lunar phases, tides, and wind speed on the abundance of diptera calliphoridae in a mangrove swamp.abiotic factors, such as lunar phases and tides, have a significant effect on insect development. reproduction and immature development are usually interlinked to these abiotic factors. the tide is at its highest levels at full moon or new moon, hindering the feeding of the immature or causing their drowning. the oviposition by adult females is also compromised on these days because much of the available food is submerged. another important abiotic factor is the wind, which displaces odoriferous ...201427193403
multiple colonization of a cadaver by insects in an indoor environment: first record of fannia trimaculata (diptera: fanniidae) and peckia (peckia) chrysostoma (sarcophagidae) as colonizers of a human corpse.we describe here a case of multiple colonization of a male cadaver found indoors in the municipality of jaboatao dos guararapes, brazil. the body was colonized by six species of diptera: chrysomya albiceps, chrysomya megacephala, chrysomya putoria (calliphoridae), megaselia scalaris (phoridae), fannia trimaculata (fanniidae), and peckia (peckia) chrysostoma (sarcophagidae). the most abundant species were c. albiceps (65.0 % of all emerged adults) and c. megacephala (18.6 %). the case illustrates ...201424218014
the effect of cocaine on the development rate of immatures and adults of chrysomya albiceps and chrysomya putoria (diptera: calliphoridae) and its importance to postmortem interval estimate.this study aimed to determine the effect of cocaine on the development and growth of immature and adult blowflies, in an attempt to better understand the impacts of such effects on postmortem interval (pmi) estimation. twice the lethal dose of cocaine was injected into rabbits. the control animals were injected only with saline solution. experimental and control rabbits were autopsied, and portions of their livers were exposed to newly eclosed larvae of chrysomya putoria and chrysomya albiceps. ...201222341241
prey choice by facultative predator larvae of chrysomya albiceps (diptera: calliphoridae).in this study we investigated predation rates on third instar larvae of chrysomya putoria and c. megacephala by third instar larvae of c. albiceps in a two-choice situation. the highest predation rate occurred on c. putoria larvae and this result is compared to previous experiments, in which c. macellaria larvae were present. our results suggest that, when c. macellaria is absent c. albiceps larvae attack more c. putoria than c. megacephala larvae. prey choice decisions and its implications for ...200111562718
evaluation of the influence of the antibiotic ciprofloxacin in the development of an old world screwworm fly, chrysomya putoria.chrysomya putoria (wiedemann) (diptera: calliphoridae), an old world screwworm fly, is a species with potential for maggot therapy practice and has been described in myiasis and forensic entomology studies. the objective of the present study was to assess the action of different ciprofloxacin concentrations on the growth and development of c. putoria. first instar maggots of the third generation were raised on 60 g of chicken gizzard homogenate in 65% agar diet and received ciprofloxacin chlorid ...201425373150
functional response and matrix population model of podisus nigrispinus (dallas, 1851) (hemiptera: pentatomidae) fed on chrysomya putoria (wiedemann, 1818) (diptera: calliphoridae) as alternative prey.among the predators with high potential for use in biological control, the species of the genus podisus (hemiptera: pentatomidae) have received special attention for laboratory rearing, since they feed on different agricultural and forestry pest insects. however, the type of diet offered to insects in the laboratory may affect the viability of populations, expressed essentially by demographic parameters such as survival and fecundity. this study assessed demographic and development aspects in ex ...201727604849
induced cannibalism in experimental populations of the forensic indicator chrysomya putoria wiedemann (diptera: calliphoridae).we analyzed the behavior of third-instars of chrysomya putoria as potential cannibals in experimental populations. cannibalism rates were evaluated in three settings observed for 3, 6, 9, and 24 h, placing injured and uninjured larvae of c. putoria together. our data heavily support that c. putoria larvae behave as cannibals when induced by a wound in another larva, and also after starving for 24 h. the probability of cannibalism increased as a function of time, both in no-choice and in choice e ...201626698866
theoretical estimates of consumable food and probability of acquiring food in larvae of chrysomya putoria (diptera: calliphoridae).an indirect estimate of consumable food and probability of acquiring food in a blowfly species, chrysomya putoria, is presented. this alternative procedure combines three distinct models to estimate consumable food in the context of the exploitative competition experienced by immature individuals in blowfly populations. the relevant parameters are derived from data for pupal weight and survival and estimates of density-independent larval mortality in twenty different larval densities. as part of ...20068736102
nocturnal oviposition behavior of blowflies (diptera: calliphoridae) in the southern hemisphere (south africa and australia) and its forensic implications.published research has offered contradictory evidence of the occurrence of nocturnal oviposition by carrion-breeding blowflies, a behavior that can affect the interpretation of forensic estimates of a minimum post mortem interval (minpmi) by up to 12 hours, depending on latitude and season. the majority of published studies are from the northern hemisphere. field experiments were conducted in south africa and australia that extend observations to species of the southern hemisphere. various verte ...201728409386
alternative diets for chrysomya putoria, an old world screwworm fly.abstract the purpose of this study was to evaluate the post-embryonic development of chrysomya putoria (wiedemann 1818) (diptera: calliphoridae) reared on a diet of gizzard or gizzard/agar homogenate, with a diet of beef used as the control. four replicates per treatment were performed (60 ml of each diet). the gizzard (60%), distilled water, and agar homogenate were combined in a blender. each replicate consisted of 40 newly hatched larvae of c. putoria (5(th) generation). each glass beaker con ...201222954388
longevity, fertility and fecundity of adult blow flies (diptera: calliphoridae) held at varying densities: implications for use in bioconversion of waste.large numbers of flies are needed to produce the quantity of larvae required for insect bioconversion of waste. however, this 'mass-rearing' may negatively affect adult survival and reproductive output. this study assessed the suitability for mass-rearing of four blow fly species, chrysomya chloropyga, chrysomya chloropyga (wiedemann), chrysomya megacephala (f.), chrysomya putoria (wiedemann) and lucilia sericata (meigen). flies were kept at densities of 20, 50, 100, 250, 500, and 1,000 flies pe ...201729040631
checklist and distribution maps of the blow flies of venezuela (diptera, calliphoridae, mesembrinellidae).a checklist of the 39 species of blow flies (calliphoridae and mesembrinellidae) so far known to occur in venezuela is provided, based on a thorough literature review and the examination of ca. 500 specimens deposited in the main entomological collections of the country. data from the literature and museum collections were used to generate distribution maps for 37 species. three species are recorded from venezuela for the first time: chrysomya putoria (wiedemann, 1830), mesembrinella spicata ald ...201728228670
post-embriononic development of chrysomya putoria(diptera: calliphoridae) on a diet containing ampicillin in different concentrations.here we evaluate the effects of different concentrations of the antibiotic ampicillin on the growth and development of chrysomya putoria. third-generation, first instar larvae (l1) reared on 60 grams of homogenate+agar 65% were treated with ampicillin sodium. the experiment consisted of four replicates (40 larvae/replicate) of each antibiotic concentration tested (t1: 466µg/ml ; t2: 81.33 mg/ml and t3: 166.66mg/ml) and a t4: control. the body mass of the mature larvae, after they abandoned the d ...201626959318
effect of age on cuticular hydrocarbon profiles in adult chrysomya putoria (diptera: calliphoridae).a species-specific complex mixture of highly stable cuticular hydrocarbons (chcs) covers the external surface of all insects. components can be readily analyzed by gas chromatography coupled to mass spectrometry (gc-ms) to obtain a cuticular hydrocarbon profile, which may be used as an additional tool for the taxonomic differentiation of insect species and also for the determination of the age and sex of adult and immature forms. we used gc-ms to identify and quantify the chcs of female and male ...201626775199
effects of the antibiotics gentamicin on the postembryonic development of chrysomya putoria (diptera: calliphoridae).we evaluate the effects the antibiotic gentamicin on the development of chrysomya putoria (wiedemann, 1818). third-generation, first-instar larvae were reared in a climatic chamber on 60 g of homogenate + agar 65% and were treated with three concentrations of gentamicin: 4.44 mg/ml, 13.33 mg/ml, and 66.66 mg/ml. the control consisted of distilled water. the relationships between mean body mass of mature larvae (measured after diet abandonment, in batches of five individuals), duration of larval ...201425527588
sterilization of chrysomya putoria (insecta: diptera: calliphoridae) eggs for use in biotherapy.large-scale, quality-controlled laboratory production of fly larvae is needed for biotherapy. the objective of this study was to assess the action of glutaraldehyde on the sterilization of chrysomya putoria eggs by applying pharmaceutical sterility tests. egg masses with 0.600 g were divided into three parts of 0.200 g, the eggs were separated using sterile distilled water, and the suspensions obtained were mixed with activated 2% glutaraldehyde solution. after 15-min contact, the suspensions we ...201425399429
intrapuparial development of chrysomya putoria (diptera: calliphoridae).the intrapuparial development of 150 pupae of chrysomya putoria (wiedemann, 1830) was analyzed. the material was kept in a climate chamber at 27 degrees c (day) and 25 degrees c (night), 60 +/- 10% relative humidity (rh), and a photoperiod of 14:10 (l:d) h, which started at 06:00 a.m. daily, 30 pupae were frozen at - 15 degrees c, for the sacrifice of the insects, and the immatures obtained were photomicrographed until the emergence of the adults. the following stages were observed: pupariation ...201425276917
development of odour-baited flytraps for sampling the african latrine fly, chrysomya putoria, a putative vector of enteric diseases.african pit latrines produce prodigious numbers of the latrine fly, chrysomya putoria, a putative vector of diarrhoeal pathogens. we set out to develop a simple, low-cost odour-baited trap for collecting c. putoria in the field. a series of field experiments was carried out in the gambia to assess the catching-efficiency of different trap designs. the basic trap was a transparent 3l polypropylene box baited with 50 g of fish, with a white opaque lid with circular entrance holes. we tested variat ...201223226296
ultrastructure of immature stages of the blowfly chrysomya putoria (wiedemann, 1818) (diptera: calliphoridae).forensic entomology is an area of science that serves as a tool in crime scene investigations. usually, flies are the first insects to reach a carcass and can oviposit just a few hours after arrival. therefore, the knowledge of immature stages is essential for correct identification of the species found on corpses. scanning electron microscopy (sem) gives detailed information about morphological characters helping to identify the immature forms of flies. chrysomya putoria (wiedemann) is a very i ...201221761503
endopolyploidy in follicle epithelial cells around the nurse chamber during oogenesis in chrysomya putoria (diptera, calliphoridae).feulgen-dna values and nuclear areas were evaluated microspectrophotometrically for epithelial cells of the ovarian follicle during oogenesis in chrysomya putoria. the aim was to investigate whether polyploidization occurred in the cells surrounding the nurse chamber and/or in those around the oocyte as well as whether different dna amounts were found regarding the cell types considered. four dna endoreduplicative cycles could be demonstrated for the epithelial cells regardless of their localiza ...19902384217
entomological studies of on-site sanitation systems in botswana and tanzania.a survey of various types of on-site sanitation systems in dar es salaam and gaborone showed that many were infested with larvae of flies (mainly chrysomya putoria) and culex mosquitoes (mainly cx quinquefasciatus). the mosquitoes only occurred where the pit contents had a free water surface but the flies were found in both wet and scum covered pits. the infestation rate was much higher where the latrine vent pipe had no insect-proof screen. exit traps were placed on the vent pipes and drop hole ...19826123168
egg developmental time and survival of chrysomya megacephala and chrysomya putoria (diptera: calliphoridae) under different temperatures.chrysomya megacephala (f.) and chrysomya putoria (wiedemann) (diptera: calliphoridae) are considered of forensic, medical, and veterinary importance in brazil because of their necrophagous and synanthropic behaviour. the development of flies can be influenced by temperature, and species from the same genus usually have different responses to external variables. the egg development of blow fly can be a useful complementary technique to estimate the minimum postmortem interval. thus, this study ai ...201526335461
intraguild predation influences oviposition behavior of blow flies (diptera: calliphoridae).the objective of the present study was to determine whether blow flies (diptera: calliphoridae) are able to identify larvae of an intraguild predator species in the substrate and avoid laying eggs there. blow flies oviposited in traps with different treatments: substrate only and substrate with larvae of chrysomya albiceps (wiedemann, 1819), chrysomya megacephala (fabricius, 1794), or chrysomya putoria (wiedemann, 1830). ch. megacephala, ch. putoria, and lucilia eximia (wiedemann, 1819) avoided ...201626888288
karyotypes, constitutive heterochromatin, and genomic dna values in the blowfly genera chrysomya, lucilia, and protophormia (diptera: calliphoridae).the karyotypes and c-banding patterns of chrysomya species c. marginalis, c. phaonis, c. pinguis, c. saffranea, c. megacephala (new guinean strain), lucilia sericata, and protophormia terraenovae are described. all species are amphogenic and have similar chromosome complements (2n = 12), including an xy-xx sex-chromosome pair varying in size and morphology between species. additionally, the c-banding pattern of the monogenic species chrysomya albiceps is presented. the dna contents of these and ...200616936838
diversity of calliphoridae (diptera) in brazil's tinguá biological reserve.the calliphoridae are flies of great ecological, medical and sanitary importance because they are decomposers of organic matter, mechanical vectors of pathogenic agents, and causers of myiasis. this paper attempts to ascertain the diversity of calliphoridae in the tinguá biological reserve and correlate meteorological data (temperature, relative humidity of the air, and precipitation) with the occurrence of these flies. the study was conducted at a site in the tinguá biological reserve, located ...200616680310
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