A generic diagnosis for the genus Semiocladius Sublette et Wirth and a key to the male imagines is given. The systematic position of the genus is close to Thalassosmittia Strenzke et Remmert based on imagines and pupa while the tentatively associated larva possibly could belong to another genus with marine larvae. Semiocladius crassipennis (Skuse), S. endocladiae (Tokunaga) and S. brevicornis (Tokunaga) are redescribed in both sexes, and the presumptive larva of S. kuscheli Sublette et Wirth redescribed. A pupa collected from Lord Howe Island in the Western Pacific Ocean is described, illustrated and tentatively assigned to the genus. The generic diagnosis for pupae is expanded to include this species.
Bibliographical noteFunding Information:
We are grateful to Dr. P.S. Cranston, CSIRO, Canberra, Australia; Dr. B.V. Peterson, U.S. National Museum, Washington, D.C., USA; Dr. N. Evenhuis, B. Bishop Museum, Honolulu, HA, USA; Dr. S. Frommer, University of California, Riverside, CA, USA; Dr. S. Wang, Institute of Hydrobiology, Wukan, China and Dr. J.E. Sublette, University of Southern Colorado, Pueblo, CO, USA, for supplying us with material. Gladys Ramirez and David Goldhammer made slide preparations. This research was completed while the senior author was on sabbatical leave at the University of Kansas supported by the Norwegian National Research Council. This paper is published under the auspices of the Water Quality and Freshwater Ecology Program of the Kansas Biological Survey at the University of Kansas.
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- Marine midges