Dolichopodidae (Diptera) from Papua New Guinea. X. Description of the new species of the marine genus Cymatopus Kertesz*

Abstract

Four species of the marine genus Cymatopus are reported from the coasts of Papua New Guinea. Two species, C. calcaratoides, sp. nov. (northern coast), and C. motuporensis, sp. nov. (southern coast), and the female of C. leopoldi Meuffels & Grootaert are described. Together with C. calcaratus and C. malayensis, they form a distinct monophyletic group in the western Pacific.

The larvae and pupae of Cymatopus live in the thin layer of algae and debris on the rocks in the eulittoral zone. The adult flies feed at low tide on the larvae of chironomids and ceratopogonids in the intertidal zone.

*Contribution No. 257 of the Leopold I11 Biological Station on Laing Island.