Publications

the distribution of rickettsia in the tissues of insects and arachnids.	in the absence of a satisfactory definition of rickettsia the observations herein recorded were arbitrarily limited to bacterium-like organisms which are intracellular and gram-negative. rickettsia of this type were found in the following species: amblyomma americana, amblyomma hebraeum, boophilus decoloratus, atomus sp., casinaria infesta, chrysopa oculata, ctenocephalus canis, dermacentor variabilis, lepisma saccharina, lucoppia curviseta, margaropus annulatus, margaropus annulatus australis, ...	1923	19868737
[not available].		1946	20249314
insecticides to control the european corn borer in field corn.		1947	20264508
infestation of a raccoon by amblyomma americanum.		1947	20264533
rite of amblyomma americanum associated with possible tick paralysis.		1947	20340890
dipping in benzene hexachloride to control ambylomma americanum.		1947	20240410
[contribution to the study of the teratology of ixodids; 2 monsters obtained spontaneously in a strain of amblyomma nuttalli dönitz 1909].		1949	14771470
serological characteristics of a pathogenic rickettsia occurring in amblyomma maculatum.		1949	15398100
experimental transmission of q fever by amblyomma cajennese.		1949	18141391
[amblyomma diemeniae, a new reptilian tick from australia, with observations on variant formations of the clava in the genus amblyomma].		1950	15431890
tick paralysis; implicating amblyomma maculatum.		1951	14806800
[a note on the amblyomma astrion dönitz 1909].		1951	14894811
[mexican amblyomma castanedai n. sp. (ixodidae)].		1952	14957782
[notes on ticks. ii. a new species of the genus amblyomma and a new species of the genus ixodes (acari: ixodidae)].		1952	13012856
notes on the ticks of guam with the description of amblyomma squamosum n. sp. (acarina: ixodidae).		1953	13053309
natural infection of the tick, amblyomma cajennense, with rickettsia rickettsii in panama.		1953	13065638
[key to african amblyomma].		1953	13080826
a further case of gynandromorphism, observed on an amblyomma variegatum govurensis t. dias, 1950.		1953	13171567
natural occurrence of tularemia in the lone star tick, amblyomma americanus (linn.), and in dogs in arkansas.		1954	13138839
[various ixodes of the amblyomma marmoreum group in the collection of the museum of hamburg].		1955	13314098
[study of amblyomma extraoculatum (neotropical species) based on the examination of the holotype].		1955	13327254
[amblyomma, hyalomma, boophilus, rhipicephalus of africa are carriers of rickettsial & neorickettsial elements & occasionally of the two types of agents].		1957	13489443
amblyomma imitator, a new species of tick from texas and mexico, and remarks on the synonymy of a. cajennense (fabricius) (acarina-ixodidae).		1958	13564359
[studies on the transmission of toxoplasma gondii. ii. note on the experimental transmission by the tick amblyomma cajennense].		1958	13848246
the possible role of ticks as vectors of leptospire. ii. infection of the ixodid ticks, dermacentor andersoni and amblyomma maculatum, with leptospira pomona.		1959	13806052
[rectification of diagnosis: amblyomma tigrinum koch in place of amblyomma maculatum koch].		1959	13836584
[apropos of amblyomma laticaudae warburton, 1933 (acarien ixodoidea) in new caledonia].		1960	13739123
the fine structure of spermatids from the tick, amblyomma dissimili.		1961	14491069
[ixodological notes. ix. the oval complex of the genus amblyomma].		1961	13861961
kohls gm: description of the female of dermacentor latus cooley and of amblyomma albopictum neumann (acarina-ixodidae).		1962	13879941
a fine-structure study on spermiogenesis in the tick amblyomma dissimill, with special reference to the development of motile processes.		1962	13973642
spermiogenesis in the tick, amblyomma dissimili, as revealed by electron microscopy.		1963	13973643
[observations on the morphology, biology and development of amblyomma compressum (macalister, 1872), the pangolin tick of west africa].		1963	14011156
the laboratory rearing of amblyomma sparsum neumann, 1899.		1964	14124281
ticks (ixodidae) on migrating birds in egypt, spring and fall 1962.	over a number of years studies have been carried out in egypt on the transport by migrating birds of ticks that may transmit pathogens of man and animals. in continuation of these investigations 11 036 birds migrating southwards through egypt were examined for ticks during the fall of 1962. the 881 infested birds (comprising 24 species and sub-species represented by 10 612 individuals) yielded 1442 ticks. tick-host relationships were similar to those of previous years except that in 1962 the pre ...	1964	14163959
[a new species of amblyomma, parasite of madagascan tortoises: a. chabaudi n. sp. (acariens ixodidae)].		1964	14250518
allergy in a horse due to amblyomma americanum.		1965	14296518
the bont tick (amblyomma hebraeum), exotic vector of heartwater found in the united states.		1965	14323370
[amblyomma chabaudi rageau, 1964. (ixodidae). description of the female and the nymph. morphologic variations of the male].		1965	5864221
[isolation of toxoplasma gondii in naturally infected ixodidae of the genus amblyomma].		1965	5892111
[isolation of a strain of rickettsia conori from larvae of amblyomma variegatum in guadeloupe].		1966	6013770
engorgement and reproduction of lone star ticks (amblyomma americanum (l.)) treated with gamma-radiation.		1966	5296972
[amblyomma chabaudi rageau, 1964 (ixodidae). breeding in the laboratory. description of the larva. complementary observations on the nymph].		1967	6062855
ticks in the south african zoological survey collection. 13. gynanders of boophilus decoloratus (koch, 1844) and amblyomma hebraeum koch, 1844.		1967	5586994
field vector studies of epizootic east coast fever. vi. the occurrence of amblyomma variegatum and a. lepidum in the east coast fever zones.		1968	5750916
eradication efforts against tropical bont tick, amblyomma variegatum, in the virgin islands.		1969	5766830
arbovirus studies in the ohio-mississippi basin, 1964-1967. vii. lone star virus, a hitherto unknown agent isolated from the tick amblyomma americanum (linn).		1969	5810802
white-tailed deer, a new host for amblyomma inornatum.		1969	5816091
ecology of tick vectors of american spotted fever.	the author reviews the natural history of the tick vectors of american spotted fever. the discussion concerns the ecology of the rocky mountain wood tick, dermacentor andersoni, the american dog tick, dermacentor variabilis, and the lone-star tick, amblyomma americanum, all of which are proven vectors of rocky mountain spotted fever to man. also included are the rabbit tick, haemaphysalis leporispalustris and dermacentor parumapertus, which very rarely bite man but which are considered of import ...	1969	5306621
[the tick amblyomma testudinis (conil 1877): its development and effect on the host].		1969	5380272
a new species of amblyomma from iguanas in the caribbean (acarina: ixodidae).		1969	5391156
[amblyomma variegatum of african or antillean origin and rickettsia of the dermacentroxenus genus].		1969	4933938
effect of age on the attachment rate of the parasitic stages of the lone star tick, amblyomma americanum (linnaeus) (acarina: ixodidae), in the laboratory.		1970	5435814
mating behavior and reproduction of the lone star tick, amblyomma americanum.		1970	5449398
amblyomma (acarina: ixodidae) on white-tailed deer, odocoileus virginianus (zimmermann), from south texas with implications for theileriasis.		1970	5501217
[contribution to a study of the ticks of senegal (acarina, ixodoidea). i. larvae of amblyomma (koch) and hyalomma (koch)].		1970	5508156
parasites of the collared peccary from texas.	results of a survey of the parasites of the collared peccary (dicotyles tajacu angulatus) in texas are presented. three ectoparasites, amblyomma cajennense, dermacentor variabilis, and pulex porcinus were very common on peccaries from south texas, but less common or absent in arid west texas. sucking lice, pecaroecus javalii, were common on peccaries from west texas, but were not found in south texas. the known range of this louse in texas is extended into the big bend area. two ticks, amnblyomm ...	1970	16509125
fine structure of tarsal sensilla in the tick amblyomma americanum (l.).		1971	5541841
mate-seeking by female amblyomma maculatum (acarina: ixodidae) on a bovine.		1971	4938838
[notes on the ticks of sicily, with descriptions of hyalomma detritum and amblyomma variegatum].		1971	5147924
the ecology of the lone star tick, amblyomma americanum (l.), in two contrasting habitats in virginia (acarina: ixodidae).		1971	5153583
response of ovipositing amblyomma maculatum koch (acarina: ixodidae) to photoperiod.		1971	5160257
redescription of amblyomma fulvum neumann 1899 (acarina: ixodidae), a parasite of the giant anaconda in northern south america.		1972	5036198
a method of collecting nymphal and adult lone star ticks, amblyomma americanum (l.) (acarina: ixodidae), from woodlots.		1972	5036200
fine structural analysis of palpal receptors in the tick amblyomma americanum(l.).		1972	5042252
2,6-dichlorophenol, sex pheromone of the lone star tick.	the compound 2,6-dichlorophenol was identified from female lone star ticks, amblyomma americanum, and is believed to be a sex pheromone of this arthropod. the natural occurrence of a chlorinated organic compound in a land animal is new. the presence of similar compounds of exogenous origin is common in animals, but efforts to implicate an outside source for the halogenated phenol have failed.	1972	5054146
bionomics of the gopher tortoise tick, amblyomma tuberculatum marx.		1972	5057497
permeability of tarsal sensilla in the tick amblyomma americanum l. (acarina, ixodidae).		1972	4647364
[detection of amblyomma gemma dön. (ixodidae) in the crimea].		1972	4271864
ultrastructure of haller's organ in the tick amblyomma americanum (l.).		1972	4334800
permeability of tarsal sensilla in the tick amblyomma americanum l. (acarina, ixodidae).	ticks were submerged in silver-protein solution, prior to fixation for electron microscopy, in order to trace the pathway of molecules in supposed tarsal chemoreceptors. sensilla with radially arranged cuticular canals (100-200 a in diameter) leading to the centrally located dendrites show silver granules inside the canals and in the central lumen, thus directly making contact with the dendrites. sensilla with large, plugged pores (1200 a) exhibit an accumulation of silver granules in the pore o ...	1972	18631584
the ecology of amblyomma cajennense a parasite of man and animals in trinidad.		1973	4777424
the effect of immersion in water on the immature stages of the ixodid ticks-rhipicephalus appendiculatus neumann 1901 and amblyomma variegatum fabricius 1794.		1973	4787718
a search for the epidemic typhus agent in ethiopian ticks.	the presence of antibodies to rickettsia prowazeki in domestic animals from several parts of africa, and the isolation of this rickettsia from the blood of goats and sheep and from ticks off cattle or camels in ethiopia, led to the hypothesis that r. prowazeki in nature may occur in an extrahuman cycle involving ticks and domestic animals. this study attempted to recover r. prowazeki from 2 624 ticks (4 genera, 10 species) collected in central and southern ethiopia. the ticks were examined by th ...	1973	4204491
human skin lesions in east central state, nigeria due to the larvae of amblyomma variegatum (fabricius, 1794).		1973	16366347
fine structure of the central nervous system of dermacentor variabilis (say), amblyomma americanum (l.), and argas arboreus kaiser, hoogstraal, and kohls (ixodoidea).		1974	4852052
resistance of purebred brahman, hereford, and brahman times hereford crossbred cattle to the lone star tick, amblyomma americanum (acarina: ixodidae).		1974	4455918
some experiments on the transmission of theileria mutans (theiler, 1906) and theileria parva (theiler, 1904) by the ticks amblyomma variegatum (fabricius, 1794) and rhipicephalus appendiculatus neumann, 1901, in uganda.		1974	4607395
development of theileria mutants (aitong) in the tick amblyomma variegatum compared to that of t. parva (muguga) in rhipicephalus appendiculatus.	a comparison was made between the development of theileria mutans (aitong) in adult amblyomma variegatum ticks and the development of t. parva (muguga) in adult rhipicephalus appendiculatus ticks. both batches of ticks dropped as engorged nymphs from cattle whose intraerythrocytic parasitemias were approximately 40%, and it was thus possible to make a direct comparison of the infection rates produced in their tick hosts in this experiment by the 2 species of theileria. ticks of the 2 batches wer ...	1975	809568
rocky mountain spotted fever (tick-borne typhus) in south carolina: an educational program and tick/rickettsial survey in 1973 and 1974.	because the incidence of spotted fever is increasing in south carolina, campaigns were carried out in 1973 and 1974 to provide the public and medical practitioners, through pamphlets and news media, with information about spotted fever and the ticks which transmit the causative agent, rickettsia rickettsii. people were also invited to save and submit live ticks removed from vegetation, animals and humans, for examination by the hemolymph test. a total of 1,186 ticks consisting of 987 dermacentor ...	1975	811127
a review of the evidence in retrospect for a rickettsial etiology in bullis fever.	the authors have presented evidence through work done 25-30 years ago for the rickettsial etiology of bullis fever, a forgotten epidemic which occurred with over a 1,000 cases among world war ii troops in training at camp bullis, texas. rickettsiae were recovered from blood and lymph nodes of patients and from ticks, amblyomma americanum, collected in the area. all patients gave a history of tick-bites. the human and tick strains of rickettsiae, carried in chick embryo culture and in animal pass ...	1975	1103350
some aspects of the ecology and lifecycle of amblyomma cajennense (fabricius 1787) in trinidad and their influence on tick control measures.	the distribution in trinidad of the tick amblyomma cajennense is defined, and the methods used to determine the boundaries of the infested areas are outlined. the relationships between climate, vegetation and husbandry methods and the distribution of the tick are described. monthly tick collections from specific animals to determine exact seasonal variations were not possible but a study was made of the normal life cycle under laboratory conditions, the results being used to assist in interpreti ...	1975	1124964
evaluation of co2-baited traps for survey of amblyomma maculatum koch and dermacentor variabilis say (acarina: ixodidae).		1975	1159725
the effect of host species on the engorgement, molting success, and molted weight of the gulf coast tick, amblyomma maculatum koch (acarina: ixodidae).		1975	1159746
studies on the ecology of amblyomma marmoreum koch 1844 (acarnia: ixodidae).	in the eastern cape province of south africa, larvae and nymphs of ablyomma marmoreum koch occur in habitats in which there is tree cover and herbaceous ground cover. immatures of a. marmoreum are parasitic on reptiles, birds, and mammals. adults occur only on reptiles. the major host for all stages is the moutain tortoise (geochelone pardalis), and in the home areas of tortoises the density of ticks is high. larvae are active in late summer and autumn. the rate of feeding is temperature-depende ...	1975	1165558
reproduction in ticks (acari: ixodoidea). 4. effects of mechanical and chemical stimulation on oocyte development in amblyomma americanum.		1975	1172534
arsenic resistance in species of multi-host ticks in the republic of south africa and swaziland.	a survey was made in the republic of south africa and swaziland to determine the incidence of arsenic resistance in multi-host ixodid ticks. arsenic resistant strains were found in the following species:- rihipicephalus appendiculatus, rhipicephalus evertsi, rhipicephalus capensis, amblyomma hebraeum and a species of hyalomma, tentatively identified as hyalomma rufipes. strains of haemaphysalis leachi, haemaphysalis silacea and ixodes pilosus were also tested.	1975	1223285
host and distributional records for the tick amblyomma inornatum (banks) (acarina: ixodidae), with descriptions of the immature stages.		1975	1223295
[the tick amblyomma variegatum (ixodidae), apparently resistant to arsenic, in madagascar].		1975	1230882
aggregation response of nymphs to pheromone(s) produced by males of the tick amblyomma hebraeum (koch).		1976	1250397
studies on theileriidae (sporozoa) in tanzania. i. tick transmission of haematoxenus veliferus.	haematoxenus veliferus was experimentally transmitted in cattle on two occasions by the tick amblyomma variegatum; transmission was transstadial, from nymph to adult. theileria mutans and cowdria ruminatium were transmitted at the same time. h. veliferus infected at least 15% of red cells in a splenectomized steer and 10% in a normal steer. one experiment on transstadial transmission from larva to nymph was unsuccessful.	1976	1258136
aride virus, a new ungrouped arbovirus infecting amblyomma loculosum ticks from roseate terns in the seychelles.		1976	1259597
studies on theileriidae (sporozoa) in tanzania. iii. experiments on the transmission of theileria mutans by rhipicephalus appendiculatus and amblyomma variegatum (acarina, ixodidae).	the parasite considered to be theileria mutans in east africa could not be transmitted transstadially by rhipicephalus appendiculatus (seven attempts); it was transmitted by amblyomma variegatum in 6 out of 7 experiments. the possibility that the original south african t. mutans, transmissible by r. appendiculatus, and the parasite called t. mutans in east africa, are different species, has to be considered.	1976	824772
field evaluation of arthropod repellent netting as a ground cloth against ticks.	tick repellent, wide-mesh net ground cloths were tested against amblyomma americanum (linnaeus) by the co2 bait technique. two repellents, n,n-diethyl-metatoluamide (deet) and 3 acetyl-2-(dimethyl-5-heptenyl)-oxazoladine, and two netting fabrics were compared. all combinations tested provided over 90% protection. the effectiveness of repellent ground cloths against chiggers is discussed.	1976	961999
peripheral nervous system of the ticks, amblyomma tuberculatum marx and argas radiatus railliet (acari: ixodoidea).	the peripheral nervous system of an ixodid and an argasid tick include the following components: (1) paired optic, cheliceral and pedipalpal nerves and unpaired stomodeal nerve arising from the pre-esophageal portion of the central nervous system (synganglion); (2) 4 pairs of pedal nerve trunks (each with appendicular and hemal branches) and 4 major pairs of opisthosomal nerves (including the paraspiracular, genital, postlateral-myosomal, and ano-myosomal nerves); and (3) the lateral "sympatheti ...	1976	978369
trypanosomes in amblyomma americanum from oklahoma.		1976	978370
accumulating process and concentration ratios of ingested blood meals in larvae and nymphs of ten species of ticks.	the accumulating process and concentration ratios of ingested blood meals in the larvae and nymphs of amblyomma testudinarium, haemaphysalis campanulata, h. concinna, h. formosensis, h. hystricis, h. kitaokai, the bisexual and parthenogenetic strains of h. longicornis, h. megaspinosa, and ixodes persulcatus on rabbits and argas japonicus on chickens were comparatively investigated. the larvae and nymphs of the ixodid ticks examined and the larvae of a. japonicus concentrated the ingested blood m ...	1976	980120
comparative observations on some bionomics of japanese ixodid ticks under laboratory cultural conditions.	seventeen species of japanese ixodid ticks of the genera amblyomma, boophilus, haemaphysalis, ixodes, and rhipicephalus were reared in the laboratory under almost the same cultural conditions. their major biological characters, such as feeding, molting, oviposition, and hatching, were summarized in tables. there were some differences in these bionomics among the species. the general characteristics common to all the ticks, except amblyomma testudinarium, were as follows. the feeding period in im ...	1976	980121
tick paralysis in a sheep caused by nymphs of amblyomma variegatum. a preliminary report.		1976	988681
studies on theileriidae (sporozoa) in tanzania. v. preliminary experiments on a new method for infecting ticks with theileria parva and theileria mutans.	bovine blood with a high parasitaemia of theileria mutans was injected through the cuticle into fully engorged nymphs of amblyomma variegatum which had recently detached from a rabbit. after moulting, they transmitted this parasite to a susceptible calf. rhipicephalus appendiculatus transmitted theileria parva in the same way, but results were negative with a. variegatum and t. parva. this method of infecting ticks appears promising for the isolation of theileria strains from the field, and migh ...	1976	1006800