Camptochaeta fulvistylata, Vilkamaa & Menzel, 2017

Vilkamaa, Pekka & Menzel, Frank, 2017, Descriptions of new species of the genera Camptochaeta Hippa & Vilkamaa and Corynoptera Winnertz (Diptera, Sciaridae) from the Holarctic, Zootaxa 4353 (2), pp. 347-359 : 352-353

Camptochaeta fulvistylata sp. n.

Fig. 5 A, B

Material studied. Holotype male. CANADA, British Columbia, Canoe Reach nr. Valemount , Control Station 15, Malaise trap, 27–28.VI.2009, Cooper , Beauchesne & Ass. Ltd. (in CNC) . Paratype. Same data as holotype but 12.VI.2010, 1 male (in MZH) .

Description. Male. Head. Face and antenna concolorous brown, maxillary palpus very pale brown. Eye bridge 2–3 facets wide. Face with 6–8 scattered longer and shorter setae. Clypeus with 1 pale seta. Maxillary palpus with 3 segments; 3rd segment longer than 1 st segment , 2nd segment shortest; 1 st segment with 1–2 long sharp setae, with an indistinct shallow pit of sensilla; body of 4th antennal flagellomere 2.8x as long as wide, surface smooth, neck slightly shorter than broad, the longest setae slightly longer than width of flagellomere. Thorax. Brown, setae pale. Anterior pronotum with 4–6 setae. Proepisternum with 8 setae. Wing. Fumose. Length 2.1–2.3 mm. Width/ length 0.40–0.45. Anal lobe moderate. R1/R 0.90–1.0. c/ w 0.75. Veins distinct; stM slightly longer than fork of M, bM as long as r-m, r-m with 2–3 dorsal setae, bM non-setose. Halter pale brown. Legs. Pale brown. Coxal setae pale. Fore tibial organ with pale vestiture in large demarcated patch in depression. Fore tibial spur subequal to tibial width. Abdomen. Pale brown, setae pale and rather long and slender. Hypopygium ( Fig. 5 A ). Yellow, paler than abdomen. Gonocoxa longer than gonostylus, gonocoxae separated, sparsely setose. Gonostylus ( Fig. 5 B ) strongly narrowed apically, with the ventromedial side strongly impressed; apicomesially with a few elongated setae; with strong apical tooth, with a megaseta on the dorsal side of apical tooth, 1 megaseta subapically on ventral side of the base of tooth and one megaseta slightly more basal; megasetae subequal in length, nearly straight, shorter than apical tooth, with basal bodies; a flagellate seta at middle of gonostylus. Tegmen subtriangular, with sublateral sclerotized stripes on the apical half, with an area of distinct aedeagal teeth. Aedeagal apodeme weak.

Discussion. See under Camptochaeta chilkatensis sp. n. and C. curtipilosa sp. n.

Etymology. The name is derived from the Latin words fulvus, yellow, and stylus, style, referring to the yellowish gonostylus.

Figures

FIGURE 5. Camptochaeta fulvistylata sp. n. (holotype).A. Part of hypopygium,ventral.B. Gonostylus, ventral.Scale 0.10 mm.