Holocentropus varangensis Mey, 1987, a probable hybrid between Holocentropus insignis Martynov, 1924 and H. picicornis (Stephens, 1936) (Trichoptera, Polycentropodidae)

Abstract

Holocentropus varangensis Mey, 1987 was described based on a single male collected by Wolfgang Tobias at Lake Gjøkvatn in Sør-Varanger municipality, northern Norway in 1969. It is very similar to H. insignis Martynov, 1924 and H. picicornis (Stephens, 1836), and the species can only be separated on relatively small differences in the male genitalia. The holotype of H. varangensis is the only specimen known. The species has never been found again neither in northern Norway, nor in neighboring countries. Holocentropus insignis and H. picicornis, on the other hand, are common and widespread in the northernmost parts of Fennoscandia. Based on this fact, and on detailed comparison of the male genitalia of all three taxa, we regard the holotype of H. varangensis as a hybrid specimen between H. insignis and H. picicornis. Thus H. varangensis is a name not valid under the International Code of Zoological Nomenclature.

Norwegian Journal of Entomology: http://www.entomologi.no/journals/nje/nje.htm.

Norsk entomologisk forening: http://www.entomologi.no/index.htm