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Open AccessCorrection: Lack of discrimination of sex and maturity of conspecifics in the copulation attempts of the male stalk-eyed fly, Sphyracephala detrahens (Diptera: Diopsidae)
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Open AccessLack of discrimination of sex and maturity of conspecifics in the copulation attempts of the male stalk-eyed fly, Sphyracephala detrahens (Diptera: Diopsidae)
Among insects, males have evolved the ability to discriminate potential mates to avoid vain mating attempts. In Diptera, courtship and mating behaviors of species that do not discriminate potential mates have ...
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Epoxidases Involved in the Biosynthesis of Type II Sex Pheromones
In moth species that utilize alkenyl (type II) sex pheromones, selective epoxidation of double bonds in the alkene pheromone components confers further diversity on their chemical structures. Two arctiids, the...
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Molecular Bases for the Biosynthesis of Species-Specific Sex Pheromones in the Genus Ostrinia (Lepidoptera: Crambidae)
The genus Ostrinia (Lepidoptera; Crambidae) consists of 21 species worldwide, 9 of which inhabit Japan. These closely related species, which utilize different host plants, provide an excellent model for studies o...
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Article
Open AccessIn vivo functional characterisation of pheromone binding protein-1 in the silkmoth, Bombyx mori
Male moths detect sex pheromones emitted by conspecific females with high sensitivity and specificity by the olfactory sensilla on their antennae. Pheromone binding proteins (PBPs) are highly enriched in the s...
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Article
Open AccessSilkworms suppress the release of green leaf volatiles by mulberry leaves with an enzyme from their spinnerets
In response to herbivory, plants emit a blend of volatile organic compounds that includes green leaf volatiles (GLVs) and terpenoids. These volatiles are known to attract natural enemies of herbivores and are ...
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Article
In vitro analysis of DIMBOA catabolism in the Asian corn borer Ostrinia furnacalis (Lepidoptera: Crambidae)
Larvae of the Asian corn borer Ostrinia furnacalis (Guenée) must cope with 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), a major toxic allelochemical present in its host plant, maize Zea mays L. UDP-gluc...
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Article
Effects of mating on host selection by female small white butterflies Pieris rapae (Lepidoptera: Pieridae)
Mating might significantly affect the host selection behaviors of phytophagous insects. Here, we investigated the post-mating changes in behavioral and antennal responses of Pieris rapae (Lepidoptera: Pieridae) f...
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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
Intraspecific variation in heat tolerance of Drosophila prolongata (Diptera: Drosophilidae)
Tolerance to extreme temperatures is one of the most important components of adaptation to environments in insects. However, the genetic mechanisms of tolerance to long-term heat stress are mostly unknown. In ...
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Sexually biased expression of odorant-binding proteins and chemosensory proteins in Asian corn borer Ostrinia furnacalis (Lepidoptera: Crambidae)
Odorant-binding proteins (OBPs) and chemosensory proteins (CSPs) play important roles in insect chemosensory systems. In the Asian corn borer Ostrinia furnacalis (Guenée) (Lepidoptera: Crambidae), only a fraction...
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Article
Identification of repellent odorants to the body louse, Pediculus humanus corporis, in clove essential oil
The control of body lice is an important issue for human health and welfare because lice act as vectors of disease such as typhus, relapsing fever, and trench fever. Body lice exhibit avoidance behavior to som...
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Comparison of the ability to catabolize DIMBOA, a maize antibiotic, between Ostrinia furnacalis and Ostrinia scapulalis (Lepidoptera: Crambidae), with reference to their hybrids
Maize contains 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), which functions as a feeding deterrent, growth inhibitor, and toxin against many herbivorous insects. The Asian corn borer Ostrinia furnacalis
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Article
Open AccessGenetic-deletion of Cyclooxygenase-2 Downstream Prostacyclin Synthase Suppresses Inflammatory Reactions but Facilitates Carcinogenesis, unlike Deletion of Microsomal Prostaglandin E Synthase-1
Prostacyclin synthase (PGIS) and microsomal prostaglandin E synthase-1 (mPGES-1) are prostaglandin (PG) terminal synthases that function downstream of inducible cyclooxygenase (COX)-2 in the PGI2 and PGE2 biosynt...
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Comprehensive identification of odorant-binding protein genes in the seed fly, Delia platura (Diptera: Anthomyiidae)
Insect odorant-binding proteins (OBPs) function in the perception of chemical cues such as pheromones and host-plant odors. Comparative genomic analysis has shown that OBP genes underwent the birth-and-death p...
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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
Chemically mediated group formation in soil-dwelling larvae and pupae of the beetle Trypoxylus dichotomus
Many insects form groups through interactions among individuals, and these are often mediated by chemical, acoustic, or visual cues and signals. In spite of the diversity of soil-dwelling insects, their aggreg...
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Article
Open AccessSexual dimorphism and courtship behavior in Drosophila prolongata
Sexual dimorphism is often derived from sexual selection. In sexually dimorphic Drosophila species, exaggerated male structures are used for specific behaviors in male-to-male competition or courtship toward fema...
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Identification of odorant-binding protein genes expressed in the antennae and the legs of the onion fly, Delia antiqua (Diptera: Anthomyiidae)
The onion fly, Delia antiqua (Meigen), is a pest specialized to the onion, Allium cepa L., and some other Allium plants. Host odorants play an important role in the attraction of D. antiqua adults and stimulation...
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Article
Open AccessEvolution of deceptive and true courtship songs in moths
Ultrasonic mating signals in moths are argued to have evolved via exploitation of the receivers' sensory bias towards bat echolocation calls. We have demonstrated that female moths of the Asian corn borer are ...
