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In West Africa, the subgenus Adenophlebiodes s.s. comprises five species divided into two groups: A. (A.) ornatus (Ulmer), A. (A.) massirius sp. n. and A. (A.) adrieni sp. n. for A. (A.) ornatus group, A. (A.) rubeus sp. n. and A. (A.) callasae sp. n. for A. (A.) decoratus (Navás) group. One of...
Three new species of Oriental Perlini are described and Agnetina aequalis (Banks) and A. quadrituberculata (Wu) are redescribed. Agnetina jarai sp. n. (Vietnam), Togoperla shan sp. n. (Thailand), and Tyloperla schmidi sp. n. (Assam), are described, compared with related congeners, and male...
Larvae of central European Helodidae were previously only known from surface waters. However, representatives of the genus Cyphon have now been found in ground water wells in Vienna and at Mondsee (Austria). In view of the circumstances and in view of the fact that collections have been repeated...
BANARESCU, P. (1990): Zoogeography of Fresh Waters. Volume 1: General Distribution and Dispersal of Freshwater‐Animals.—Aula‐Verlag, Wiesbaden, 511 pp.; ISBN 3–89104–480–1; available only as part of a set of 3 volumes; subscription price 480 DM, 560 DM after publication of all volumes.
Growth and matamorphosis of the midge larva Chironomus circumdatus were studied in relation to different temperature (22, 27, 32 and 37ˆC) and food densities (13, 17, 21 and 25 X 106 Chlorella ml‐1). Larval duration was significantly influenced by both temperature and food density while...
A new Drusus species, D. goembensis sp. n. from southern Anatolia is described and illustrated.
Canthyporus hynesi sp. n. is described from Ethiopia, where it was collected in a stream at 2,850 m a.s.1. in the Shoa province. C. hynesi is most similar to C. loeffleri Wewalka, 1981, that also is endemic to Ethiopia. The classification of Canthyporus and related genera is discussed.
Klapalekia augustibraueri (Klapalek) is redescribed from the holotype female from Bogota, Columbia. Scanning electron microscopy of the egg chorion reveals a highly punctate, sculptured surface and collar type previously unknown among neotropical perlids.
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