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Larva drifting behaviour of eight Nemourid stonefly species was studied in the laboratory. These aquatic insects demonstrated three distinct body postures, with a species‐specific preference for different poses. The effect of posture on drift dynamics is discussed.
Behaviors of Cricotopus nostocicola (Wirth) related to its mutualistic interaction with Nostoc parmelioides Kutzing were explored. The late instars and pupae probably always remain inside their Nostoc colony until emergence. Laboratory observations of 4th instar larvae removed from Nostoc...
Amphinemura hibernatarii sp.n. from Galicia, Spain, is described and illustrated. Specific status is proposed for the subspecies Amphinemura sulcicollis guadarramensis Aubert, 1952, and a key for the Spanish species of this genus is provided.
Phaenonotum caribense sp. n. from Venezuela is described, and illustrated by a line drawing of the aedoeagus and scanning photomicrographs of prosternai and meso‐metasternal keels.
A lectotype and a paralectotype are designated for Limnius perrisi carinatus (Pérez‐Areas, 1865) from the Pérez‐Areas collection which is deposited at the National Museum of Natural Sciences (Madrid).
23 species of the genus Chimarra are listed. 19 are new to science which are described and figured. C. aberrans Martynov and C. joliveti Jacquemart are figured for comparison.
The new species Neoephemeropsis rants is described from the larvae collected in the Ussuri River in the Primorye Territory. This is the first record of the genus Neoephemeropsis in the USSR.
WALTON, D. W. and W. W. K. HOUSTON (Eds) (1988): Zoological Catalogue of Australia. Vol. 6. Ephemeroptera, Megaloptera, Odonata, Plecoptera, Trichoptera.—Australian Government Publishing Service, Canberra; XII + 316 pp.; 29.95 $ Austr. STEWART, K. W. and B. P. STARK (1988): Nymphs of the North...
Remarks on the genus Macrogynoplax are presented. Three new species, M.neblina Stark, M.spangleri Stark (both from Venezuela, Cerro de la Neblina) and M.geijskesii Zwick (from Surinam), are described. A key to males and females is presented.
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