Claustropyga acanthostyla (Tuomikoski)

Vilkamaa, Pekka & Hippa, Heikki, 2007, Review of the Nearctic Claustropyga Hippa, Vilkamaa & Mohrig (Diptera, Sciaridae) with the description of three new species, Zootaxa 1552, pp. 53-68 : 56

Claustropyga acanthostyla (Tuomikoski)

Fig. 1 A, B

Corynoptera acanthostyla Tuomikoski, 1960: 73 .

Claustropyga acanthostyla, Hippa, Vilkamaa & Mohrig, 2003: 487 .

New records. USA, Alaska, Isabel Pass, Mi. 206 Richardson Hwy, 2900’, 18.VII.1962, P. J. Skitsko, 1 male (CNC). CANADA, British Columbia, Vancouver Island, Upper Carmanah Valley, forest floor, Malaise trap, 10.–29.IX.1991, N. Winchester, 2 males (RBCM).

Discussion. Several Nearctic specimens were reported from British Columbia, Vancouver Island and Alaska by Hippa, Vilkamaa and Mohrig (2003). We have now identified several additional specimens. In the Palaearctic region the species is known from Finland, Germany, Russia and Sweden. C. acanthostyla is very similar to C. elizabethae . The diagnostic characters are discussed under the latter species.

Figures

FIGURE 1. Part of hypopygium (A, C) and gonostylus (B, D) in ventral view. A and B: Claustropyga acanthostyla (Tuomikoski) (from Alaska). C and D: C. elizabethae Hippa, Vilkamaa & Mohrig (holotype from Alaska). Scale 0.10