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Collecting of caddisflies on Sachalin Island in 1989 yielded 24 species. Most of them are recorded from the island for the first time. Two species proved to be new to science. They are described as Lype excisa sp. n. and Mystacides pacifica sp. n. Additional information on morphological...
The hitherto undescribed ovipositing behaviour and eggs of Simulium dentulosum Roubaud are described. The laying of eggs under a thin film of water on the vertical face of a weir wall represents a specialized form of ovipositing which ensures that the larvae are placed in their favoured habitat....
A new species of aquatic beetle from the Iberian Peninsula, Hydraena (Haenydra) manfredjaechi sp.n., belonging to the family Hydraenidae is described and illustrated. The new species is closely related to Hydraena (Haenydra) tatii Sainz‐Cantero and Alba‐Tercedor, 1989. The “tatii‐group”; is...
The egg, male and female imagines and subimagines of a burrowing mayfly, Ephemera (Aethephemera) nadinae McCafferty and Edmunds from South India are described and illustrated for the first time based on extensive collections from Palni and Cardamom hills, including rearing and light trapping.
Velia caprai Tamanini (Hemiptera: Veliidae) is predominantly a stream dweller, and has been considered univoltine in the British Isles, with adults overwintering in a reproductively immature state. This study reveals a far more complex life‐cycle. Dissections of females captured between October...
WATSON, J.A.L., G. THEISCHINGER and H.M. ABBEY (1991): The Australian Dragonflies A Guide to the Identification, Distributions and Habitats of Australian Odonata.—CSIRO, Canberra and Melbourne; VII + 278 pp.; ISBN 0643 05136 8; $ 60.00 Austr.
Nemoura lucana a new species of Nemouridae (Plecoptera) from the Lucanian Apennine (Southern Italy), is described. Notes on relationships with similar species are included.
Leuctra queyrassiana sp. n., a member of the Leuctra hippopus group (L. prima subgroup), is described as male, female and nymph, and compared with the related L. autumnalis Aub. and L. caprai Festa. The new species is known only from brooks at high altitude between 2,200 and 2,700 m, and is...
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