Distribution of antennal sense organs in male and female ermine moth, Yponomeuta vigintipunctatus (Retzius) (Lepidoptera : Yponomeutidae)

Recent advances in insect olfaction, specifically regarding the morphology and sensory physiology of antennal sensilla of the female sphinx moth Manduca sexta

“…They did find, however, a sexual dimorphism with respect to the number of type-II and type-III trichoid sensilla. In other studies, Cuperus (1983) and Cuperus et al (1983) found no sexual dimorphism with respect to the types of antennal sensilla of some Yponomeuta species, but did find a marked difference in the distribution of various types of these sensilla . Shields and Hildebrand (1999b) found that six of the seven types of sensilla (styliform complex not included) are most abundant on the dorsal surface of the female flagellum of M. sexta, (type-A trichoid, type-B trichoid, type-A basiconic, type-B basiconic, type-A coeloconic, and type-B coeloconic; Table 2).…”

“…Studies by Cuperus (1983) and Cuperus et al (1983) revealed a sexual dimorphism with respect to the number of trichoid and basiconic sensilla in eleven species of small ermine moths (Yponomeuta spp). In later studies with moths of the same species, Cuperus (1985a, b) also showed a sexual dimorphism with respect to the number of sensory cells innervating the trichoid sensilla and number of pores present in both trichoid and basiconic sensilla.…”

Small Ermine Moths (Yponomeuta): Their Host Relations and Evolution

“…All Yponomeuta species examined possess the same types of sensilla, and the number and distribution of these do not differ significantly among the species with the exception of the sensilla trichodea. All species exhibit sexual dimorphism for these two characteristics, Y. vigintipunctatus excepted (19). The ultrastructure of the sensilla trichodea, sensilla basiconica, and sensilla coeloconica, the so-called wall-pore sensilla, indicates that they might be involved in chemoreception (3,20).…”

Ultrastructure Alterations in the Red Palm Weevil Antennal Sensilla Induced By Gamma Irradiation

“…Hunger and Steinbrecht (1998) observed the coeloconic sensella to be double walled, multiporous, rich in neurons and excessive contact interfaces. Other authors even considered that this type of sensilla may participate in receptivity to heat and humidity ( Cuperus, 1983). Olson & Andow (1993) suggested an olfactory function of this sensillar type in Trichogramma nubilale, but as revealed in several insect species (Altner et al, 1983), this sensillar type may be involved in thermo-or hygroreception.…”