SOME ASPECTS OF POSTEMBRYONIC DEVELOPMENT OF A GROUSE LOCUST, EUSCELIMENA-HARPAGO (ORTHOPTERA, TETRIGOIDEA)

Citation
Am. Bhalerao et Sy. Paranjape, SOME ASPECTS OF POSTEMBRYONIC DEVELOPMENT OF A GROUSE LOCUST, EUSCELIMENA-HARPAGO (ORTHOPTERA, TETRIGOIDEA), Oriental insect, 27, 1993, pp. 403-410
Citations number
NO
Categorie Soggetti
Entomology
Journal title
ISSN journal
00305316
Volume
27
Year of publication
1993
Pages
403 - 410
Database
ISI
SICI code
0030-5316(1993)27:<403:SAOPDO>2.0.ZU;2-5
Abstract
Laboratory observations on the post-embryonic development of the grous e-locust Euscelimena harpago Serville (Tetrigidae) is are presented. T he eggs are deposited a loose cluster in moist soil. All hoppers of a given cluster emerge almost at the same time. The fecundity rate is hi gh. Morphometric studies indicate that there is a progressive increase in the size among different body parts except the Pronotum which incr eases greatly immediately after moulting of the last instar into the a dult. There are 6 nymphal instars in the male and 7 in the female. It took about 55 days to complete the post-embryonic development in the m ale and about 70 days in the female. The last instar in the female sho ws tremendous increase in weight and a prolonged, dormant nymphal peri od during summer. Field observations on the various instars indicate t hat they feed on humus, algae and moss and show structural and behavio ural adaptations for semi-aquatic life.