The third-instar larva of the water beetle Coelambus nigrolineatus (Steven) (Coleoptera: Dytiscidae)

Author: Van Nieukerken Erik J.  

Publisher: Brill

ISSN: 1876-312X

Source: Insect Systematics & Evolution, Vol.16, Iss.1, 1985-01, pp. : 1-4

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Abstract

The third-instar Iarva of Coelambus nigrolineatus (Steven, 1808) (= C. lautus (Schaum, 1843)) is described from material collected in artificial dune-lakes in the Netherlands. The larva is characterized by legs with swimming hairs and long urogomphi with numerous secondary setae. In these characters it resembles the larva of C. confluens (Fabricius), from which it can be separated on the narrower frontal projection of the head and the relatively shorter hindclaws.