Camptochaeta formosa, Vilkamaa, Pekka, Hippa, Heikki & Heller, Kai, 2013

Vilkamaa, Pekka, Hippa, Heikki & Heller, Kai, 2013, Review of the genus Camptochaeta Hippa & Vilkamaa (Diptera, Sciaridae), with the description of nine new species, Zootaxa 3636 (3), pp. 476-488 : 479-480

Camptochaeta formosa sp. n.

Figs 3 A, B

Material studied. Holotype male. CANADA, British Columbia, Lake Kinbasket, Canoe Reach near Valemount, sampling station 15, Malaise trap, 12.VI.2010, Cooper, Beauchesne and Associates Ltd. (in CNC).

Description. Male. Head. Brown, antenna paler brown, maxillary palpus very pale brown. Eye bridge 2 facets wide. Face with 9 scattered longer and shorter setae. Clypeus with 1 seta. Maxillary palpus with 3 palpomeres; palpomere 3 longer than palpomere 1, palpomere 2 shortest; palpomere 1 with 1(2) long sharp seta, with a dorsal patch of sensilla; palpomere 2 with 1 long sharp seta and 3 shorter truncate setae, palpomere 3 with 6–8 short truncate setae. Body of antennal flagellomere 4 2.65x as long as wide, the neck shorter than long, the longest setae slightly longer than the width of flagellomere. Thorax. Brown, setae dark. Anterior pronotum with 4 setae. Episternum 1 with 5 setae. Wing. Wings missing in the specimen studied. Halter pale brown. Legs. Pale yellowish brown. Coxal setae dark. Front tibial organ in depression with vestiture in patch. Front tibial spur slightly longer than the tibial width. Abdomen. Pale brown, setae dark. Hypopygium, Figs 3 A, B. Brown, paler than abdomen. Gonocoxa longer than gonostylus. Gonostylus slender with the mesial side impressed at apical half; apicomesially with a few elongated setae; with a large apical tooth, with 3 apical-subapical megasetae, with 2 mesial megasetae close to each other at the apical third, the mesial megasetae slightly larger than the apical ones, all long, narrow and nearly straight; with a poorly differentiated flagellate seta basad of the mesial megasetae. Tegmen much broader than long, with roundish basolateral corners with sclerotized sides.

Discussion. See under Camptochaeta anceps .

Etymology. The name is Latin, formosa , beautiful, referring to the nice and delicate structure of the hypopygium.

Figures

FIGURE 3. Camptochaeta formosa sp. n. (holotype). A. Part of hypopygium, ventral view. B. Gonostylus, ventral view. Scale 0.10 mm.