EUROPEAN JOURNAL OF ENVIRONMENTAL SCIENCES, Vol 4 No 2 (2014), 97–101
New results on sexual differences in tarsal adhesive setae of Diabrotica virgifera virgifera LeConte (Coleoptera, Chrysomelidae, Galerucinae)
Kai Gloyna, Thomas Thieme, Stanislav Gorb, Dagmar Voigt
DOI: https://doi.org/10.14712/23361964.2014.3
zveřejněno: 10. 12. 2014
Abstract
Previous light microscopy studies revealed a hairless patch on the feet of male Diabrotica virgifera virgifera. However, in related species of chrysomelid beetles the males have special adhesive setae with discoid terminals, which adhere to the elytra of females during copulation. In the present study, we examined the pretarsi of D. virgifera virgifera at a high magnification using scanning electron microscopy. The distinct sexual tarsal dimorphism in this species is confirmed. However, our results do not support the presence of a hairless patch on the feet of males, but a field of densely-packed male-specific adhesive setae with discoid terminals.
klíčová slova: attachment system; mating; morphology; sexual dimorphism; western corn rootworm
210 x 297 mm
vychází: 2 x ročně
cena tištěného čísla: 150 Kč
ISSN: 1805-0174
E-ISSN: 2336-1964