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Article
A method for rearing the yellow-spotted longicorn beetle, Psacothea hilaris (Coleoptera: Cerambycidae), to stabilize the last larval instar
The larvae of Psacothea hilaris (Pascoe) grown continuously under a long day in the laboratory pupate after the 4th, 5th, or 6th instar. This developmental polymorphism has complicated studies on the control of m...
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Article
Open AccessCloning, phylogeny, and expression analysis of the Broad-Complex gene in the longicorn beetle Psacothea hilaris
Seven isoforms of Broad-Complex (PhBR-C), in which the sequence of the zinc finger domain differed (referred to as Z1, Z2, Z3, Z2/Z3, Z4, Z5/Z6, and Z6, respectively), were cloned from the yellow-spotted longicor...
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Article
Open AccessThe strepsipteran parasite Elenchus japonicus (Strepsiptera, Elenchidae) of planthoppers consists of three genotypes
The twisted-wing parasite Elenchus japonicus is a major parasitoid of rice planthoppers (Hemiptera: Delphacidae), including the brown planthopper Nilaparvata lugens, the white-backed planthopper Sogatella furcife...
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Article
Workers select mates for queens: a possible mechanism of gene flow restriction between supercolonies of the invasive Argentine ant
Some invasive ants form large networks of mutually non-aggressive nests, i.e., supercolonies. The Argentine ant Linepithema humile forms much larger supercolonies in introduced ranges than in its native range. In...
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Article
Female Sex Pheromone Polymorphism in Adzuki Bean Borer, Ostrinia scapulalis, Is Similar to That in European Corn Borer, O. nubilalis
Individual analysis of the female sex pheromone of the adzuki bean borer, Ostrinia scapulalis, has shown that the sex pheromone of this species comprised (E)-11-tetradecenyl acetate (E11–14:OAc) and (Z)-11-tetrad...
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Ostrinia spp. in Japan: their host plants and sex pheromones
To contribute to the understanding of the genus Ostrinia (Lepidoptera; Pyralidae) in Japan, we collected larvae of Ostrinia spp. from known host plants and plants not recorded as hosts, and we examined the morpho...
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Article
Geographic Variation in Sex Pheromone of Asian Corn Borer, Ostrinia furnacalis, in Japan
Geographic variation in the sex pheromone of the Asian corn borer, Ostrinia furnacalis (Guenée), was surveyed in populations sampled at four locations ranging from 39.7°N to 32.9°N in Japan. The sex pheromone of ...
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Article
Female-biased sex ratio in the Asian corn borer, Ostrinia furnacalis: evidence for the occurrence of feminizing bacteria in an insect
The maternally inherited, female-biased sex ratio in many arthropods has been attributed to infection with micro-organisms. Male killing, thelytoky and feminization are recognized as the mechanisms of the bact...
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Article
Identification of Sex Pheromone of Adzuki Bean Borer,Ostrinia scapulalis
By means of gas chromatography with electroantennographic detection (GC-EAD), gas chromatography–mass spectrometry (GC-MS), and a series of bioassays, (Z)-11-tetradecenyl acetate (Z11–14:OAc) and (E)-11-tetradece...
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Article
Allozyme Polymorphism and Geographic Variation in the Small Brown Planthopper, Laodelphax striatellus (Homoptera: Delphacidae)
The small brown planthopper, Laodelphax striatellus, immigrates annually into Japan over the East China Sea from the Asian mainland. It is not known whether this long-distance dispersal has any effect on the gen...
