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Abstract Revised and emended generic diagnoses for all stages and both sexes of Paracricotopus Thienemann and Harnisch are given. The genus appears most closely related to Rheocricotopus Thienemann and Harnisch with some similarities of larvae and females to Nanocladius Kieff. and Mesocricotopus...
Abstract This is the eleventh part of our series of studies on Orthocladiinae from India. Two new species of the genus Cricotopus, C. albipes and C. tenuisetosus are described in this paper.
Abstract Field research with emergence traps suggests that the larvae of Philopotamus ludificatus and Wormaldia copiosa migrate upstream in winter and downstream in summer. These migrations, which appear to be determined by daylenght are directed to reaches with relatively higher water...
Abstract Studies were conducted to determine the effects of 3 levels of sedimentation on the behavior and distribution of selected mayflies, stoneflies and caddisflies in artificial laboratory streams. Most species responded negatively to increased levels of sedimentation; all preferred...
Abstract After a long course over a stony substratum, the River Lune, England, runs over flat rock covered with moss. Larvae of four species of Ephemeroptera are abundant in this moss‐covered area from spring to autumn. They overwinter in the egg stage. Baetis rhodani abundant in much of the...
Abstract The life history and ecology of Stenonema modestum was investigated in the North Anna River, a 5th order stream in the Piedmont Physiographic Province of Virginia. S. modestum subimagines emerged in late‐afternoon to early‐evening from April to October. The duration of the subimago...
ZWICK, P.: Plecoptera (Steinfliegen).— Handbuch der Zoologie, IV. Bd., 2. Hälfte, 2/7.— W. de Gruyter, Berlin, New York, 1980, 115 Seiten, DM 155,—
Abstract The Author describes Psychoda sanfilippoi sp. n., a brachypterous species of Mount Kenia which inhabits the leaf frills found at the base of senecios. Ps. sanfilippoi results to be the third brachypterous species of the Psychodidae family. The Author emphasizes the importance of wing...
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