IMMATURES OF RHEOCRICOTOPUS (PSILOCRICOTOPUS) VALGUS CHAUDHURI AND SINHARAY OF DARJEELING HIMALAYA WITH NOTES ON ECOLOGY (DIPTERA, CHIRONOMIDAE)

Authors
HAZRA N SOM DK CHAUDHURI PK
Citation
N. Hazra et al., IMMATURES OF RHEOCRICOTOPUS (PSILOCRICOTOPUS) VALGUS CHAUDHURI AND SINHARAY OF DARJEELING HIMALAYA WITH NOTES ON ECOLOGY (DIPTERA, CHIRONOMIDAE), Annales de Limnologie, 34(1), 1998, pp. 75-82
Citations number
11
Categorie Soggetti
Limnology
Journal title
Annales de Limnologie → ACNP
ISSN journal
00034088
Volume
34
Issue
1
Year of publication
1998
Pages
75 - 82
Database
ISI
SICI code
0003-4088(1998)34:1<75:IOR(VC>2.0.ZU;2-B
Abstract
The immatures (larva and pupa) of Rheocricotopus (Psilocricotopus) val gus Chaudhuri & Sinharay are described for the first time. The species belongs to chalybeatus group. The larva is opportunistic, present in the fast-flowing streams to slow-flowing organically enriched sewage d rains. It lives in tunnels made of various particles glued together by silky secretions. There are two generations a year with peak emergenc e in April May and September-November. The sex ratio of females to mal es is 2:1.