Publications

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cryptotermes colombianus a new drywood termite and distribution record of cryptotermes in colombia.a new species of drywood termite (kalotermitidae), cryptotermes colombianus, is described and new records for cryptotermes cylindroceps and cryptotermes mangoldi are presented from the caribbean coast of colombia. cryptotermes colombianus is described from two soldiers and genetic sequences. this unusual species differs noticeably from other regional cryptotermes species for its weak and inconspicuous definition of the frontal and genal horns and its acute angle of the frons with respect to the ...201627408575
cryptotermes brevis (isoptera: kalotermitidae) in the azores: lessons after 2 yr of monitoring in the archipelago.the dispersal flights of west indian drywood termite, cryptotermes brevis (walker) (isoptera: kalotermitidae) were surveyed in the major cities of azores. the sampling device used to estimate termite density consisted of a yellow adhesive trap (size 45 by 24 cm), placed with an artificial or natural light source in a dark attic environment. in addition, data from two other projects were used to improve the knowledge about the geographical distribution of the species. the level of infestation in ...201425368085
potential distribution and cost estimation of the damage caused by cryptotermes brevis (isoptera: kalotermitidae) in the azores.in the azores archipelago, a significant proportion of buildings are infested with the urban exotic drywood termite cryptotermes brevis (walker), causing major economical and patrimonial losses. this work aims to understand the potential spread of this termite species in the azores and estimate the costs for both treatment and reconstruction of infested buildings in the entire archipelago. a maximum entropy niche modeling process was used to determine the potential occurrence of the species on e ...201425195448
attraction of alates of cryptotermes brevis (isoptera: kalotermitidae) to different light wavelengths in south florida and the azores.the termite cryptotermes brevis (walker) (isoptera: kalotermitidae) is an urban pest that causes much damage to wood structures. little has been done concerning the use of control methods for alates. c. brevis is known to have phototropic behavior during the dispersal flights, and this knowledge has been applied for preventative control in the azores where this species is a serious urban pest. we were interested in determining whether there was a light wavelength preference by the alates of c. b ...201223356089
antifeedant activity of citrus waste wax and its fractions against the dry wood termite, cryptotermes brevis.the wood protective action of citrus wax, a waste from the citrus industry that is a mixture of citrus fruit epicuticular waxes and essential oils, was evaluated against the termite cryptotermes brevis walker (isoptera: kalotermitidae). the antifeedant index (ai) of the total wax and fractions was calculated. the total citrus wax exhibited an ai₅₀ value of 24.69 mg/cm³, the wax after hydrodistillation showed the strongest antifeedant property (ai₅₀ 11.68 mg/cm³). fractionation of the wax and gas ...201122243487
comparison of localized injections of spinosad and selected insecticides for the control of cryptotermes brevis (isoptera: kalotermitidae) in naturally infested structural mesocosms.we investigated the efficacy of various chemical injections against cryptotermes brevis (walker) (isoptera: kalotermitidae) in hardwood shipping pallets. we had three principle interests: efficacy in whole structures, relative efficacy of the active ingredients, and whether acoustic evidence augmented treatment site selection. infested pallets were delineated into boards with four monitoring sites each. six chemical treatments were compared: chlorpyrifos aerosol, aqueous disodium octaborate tetr ...200616937692
identification of termite species by the hydrocarbons in their feces.blends of abundant cuticular hydrocarbons are species-specific for termites (isoptera) and can be used to identify a given taxon without the diagnostic castes, soldiers or adults. we demonstrate that hydrocarbon extracts of termite fecal pellets from damaged wood can also be characterized and used to identify termites responsible for damage, even though termites are no longer present or easily recovered. in structures infested by drywood termites, it is common to find fecal pellets, but difficul ...200516132216
chemical prevention of colony foundation by cryptotermes brevis (isoptera: kalotermitidae) in attic modules.disodium octaborate tetrahydrate (dot) dust, dot aqueous solution, imidacloprid dust, and amorphous silica gel dust with synergized 1% pyrethrins were applied on wood surfaces to simulated attic modules. modules (30 by 30 cm) with and without fiberglass insulation were exposed to dispersal flights of cryptotermes brevis (walker) in may and june of 1998 and 1999. six months after flights, modules were disassembled and inspected for nuptial chamber location and contents. during both years, air and ...200111561852
two permanent linear chains of sex chromosomes in neotermes fulvescens and karyotypes of two other neotropical kalotermitidae species (insecta, isoptera).meiosis and (or) mitosis of males and females of cryptotermes brevis, eucryptotermes wheeleri, and neotermes fulvescens, all of them from the neotropical region, were analyzed. cryptotermes brevis showed a similar karyotype to that obtained by other authors for specimens of the neartic and australian regions (2n = 36 for females and 2n = 37 for males, with xx and xyy sex mechanisms, respectively). eucryptotermes wheeleri, the only species that has been described in this genus, showed the lowest ...199518470219
[protozoan parasites of cryptotermes brevis walker, originating in campinas (brazil)]. 195413314059
arthromitus (bacillus cereus) symbionts in the cockroach blaberus giganteus: dietary influences on bacterial development and population density.the filamentous spore-forming bacterium arthromitus, discovered in termites, millipedes, sow bugs and other soil-dwelling arthropods by leidy (1850), is the intestinal stage of bacillus cereus. we extend the range of arthromitus habitats to include the hindgut of blaberus giganteus, the large tropical american cockroach. the occurrence and morphology of the intestinal form of the bacillus were compared in individual cockroaches (n=24) placed on four different diet regimes: diurnally maintained i ...199911762374
phylogenetic diversity of parabasalian symbionts from termites, including the phylogenetic position of pseudotrypanosoma and trichonympha.the phylogenetic diversity of parabasalian flagellates from termite hindguts has been examined by small subunit ribosomal rna (rrna) amplification and sequencing. two species of particular interest, the giant trichomonad pseudotrypanosoma giganteum and the hypermastigote trichonympha magna, were isolated from the gut of porotermes adamsoni by micropipetting, and the rrna genes from these small populations amplified and sequenced. rrna genes representing hypermastigida and the trichomonadida fami ...19989864854
the arthromitus stage of bacillus cereus: intestinal symbionts of animals.in the guts of more than 25 species of arthropods we observed filaments containing refractile inclusions previously discovered and named "arthromitus" in 1849 by joseph leidy [leidy, j. (1849) proc. acad. nat. sci. philadelphia 4, 225-233]. we cultivated these microbes from boiled intestines of 10 different species of surface-cleaned soil insects and isopod crustaceans. literature review and these observations lead us to conclude that arthromitus are spore-forming, variably motile, cultivable ba ...19989448315
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