Camptochaeta multispina, Mohrig, Werner & Kauschke, Ellen, 2017

Mohrig, Werner & Kauschke, Ellen, 2017, New Black Fungus Gnats (Diptera, Sciaridae) of North America. Part III. Genera Camptochaeta Hippa & Vilkamaa, Claustropyga Hippa, Vilkamaa & Mohrig and Dichopygina Vilkamaa, Hippa & Komarova, Zootaxa 4258 (4), pp. 301-326 : 309

Camptochaeta multispina sp. n.

Fig. 4 A‒B; plate II, fig. III

Locus typicus: Canada, Alberta, Munn Creek , 53.30°N, 118.10°W, spruce forest. Holotype: Male, 11.vi.‒24.vii.1994, leg. E. Fuller, Malaise trap ( PWMP) . Paratypes: 5 males, same data ; 2 males, 23.vii.‒15.ix.1994, same location ; 1 male, 30.iv.‒11.vi.1994, Canada, Alberta, Berland River at HWY 40, 53.42°N, 118.20°W, Pine forest , Malaise trap, leg. E. Fuller ( PWMP, 1 male in PKHH; 1 male in MZH, 1 male in PKHH, 1 male in SDEI) .

Description. Male. Head. Eye bridge 3‒4 facets wide; antennae brown; 4th flagellomere with l/w-index of 3.0, haired as long as diameter, neck rather short. Palpus are 3-segmented, first segment with one bristle and a deep sensory pit. Thorax. Brown, coxae and femora paler; scutum is haired rather long and brownish; scutellum with two long bristles; mediotergite with a few hairs; posterior pronotum bare. Wings brownish; R1 = 3/4 R; c = 2/3 w; y = x; y bare; posterior wing veins distinct, without macrotrichia. Haltere are rather long, brownish. Coxae, femora and tibiae brownish; tibial organ with a large horseshoe-like patch of bristles; spurs of middle and hind tibiae equally long, somewhat longer than the apex of tibia wide; claws toothless. Abdomen. Hypopygium without an intergonocoxal lobe or bristle patch; gonocoxites haired moderately long but sparsely on the inner ventral margin; gonostylus elongate, with flat inner side; the apical tooth (paler on the base) is longer than the 5 (6) shorter spines: 2 above the tooth, 4 below, inserting separately up to the middle of gonostylus. Tegmen is wider than long, apically rounded and laterally weakly winged, with fine teeth and a short aedeagus. Body length: 2 mm.

Comments. The species is characterized by elongate gonostylus with a flat inner side and an apical tooth, longer than the 5‒6 spines. It resembles Camptochaeta ofenkaulis ( Lengersdorf, 1925) from Europe and Camptochaeta jeskei Mohrig & Röschmann, 1993 from Morocco ( Röschmann & Mohrig 1993) by very narrow gonostylus, impressed at the inner side but differs in having 5‒6 medial spines (not 2), which are distinctly shorter than the apical tooth.

Distribution. Canada (Alberta).

Figures

FIGURE 4. Camptochaeta multispina sp. n. Male. Holotype. A. Hypopygium. B. Gonostylus.