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Subgeneric classification , description of head structures , and world check list of Hydraena KUGELANN ( Insecta : Coleoptera : Hydraenidae )
A subgeneric classification of Hydraena KUGELANN (Insecta: Coleoptera: Hydraenidae) is proposed, following acladistic analysis of 31 morphological characters of adults. The monophyly and the… Expand
Coleoptera: Elmidae and Protelmidae
Coleoptera: Elmidae and Protelmidae includes 151 extant genera and 1501 extant species as well as four fossil species described before 2015. Protelmidae are here elevated from tribal rank to family… Expand
Description of Jolyelmis spangleri a new species from Churí-tepui (Chimantá Massif, Venezuela), with a description of the larva of J. spangleri and J. reitmaieri (Insecta: Coleoptera: Elmidae)
Four species have been recognized in the genus Jolyelmis Spangler & Faitoute; all collected at isolated table mountains,mostly in cool stenothermal hypocrenal streams. The known distribution of the… Expand
Prionosolus and Podonychus, two new genera of Macronychini (Coleoptera: Elmidae)
Geoparnus rhinoceros sp. nov., a new edaphic dryopid with unusual sexual dimorphism (Coleoptera: Dryopidae)
Adults of Geoparnus rhinoceros sp. nov. (Dryopidae) are described from Borneo (Sarawak, Malaysia). The male of the new species possesses a distinct horn-like process on the clypeus, a character,… Expand
Geoparnus loebli, a new species of terrestrial dryopid from Peninsular Malaysia (Coleoptera: Dryopidae).
Three species have been recognized in the genus Geoparnus Besuchet, 1978, all collected by sifting ground debris from tropical rainforests of Malaysia. The new species Geoparnus loebli sp. nov. is… Expand
Taxonomy of the Oulimnius tuberculatus species group (Coleoptera: Elmidae) based on molecular and morphological data
Two mitochondrial (cytochrome oxidase subunit I, 16S RNA) and one nuclear (18S RNA) gene fragments were used to analyse relationships within the Oulimnius tuberculatus species group. The results of… Expand
Okalia globosa, a new genus and species of Macronychini from Malaysia (Insecta: Coleoptera: Elmidae)
Okalia, a new genus with a new species, O. globosa from Pahang (Peninsular Malaysia), is described and illustrated. It inhabits small rivers, preferring limestone gravel covered by a conspicuous film… Expand