Corynoptera salmelai, Vilkamaa, Pekka, Hippa, Heikki & Heller, Kai, 2013

Vilkamaa, Pekka, Hippa, Heikki & Heller, Kai, 2013, Notes on the taxonomy of the Holarctic Corynoptera Winnertz sensu lato (Diptera, Sciaridae), with description of six new species, Zootaxa 3710 (4), pp. 322-332 : 327-328

Corynoptera salmelai sp. n.

Figs 5 A, B

Description. Male. Head. Brown. Maxillary palpus very pale brown. Antenna concolorous with face. Eye bridge 2–3 facets wide. Face with 4–5 scattered dark longer and shorter setae. Clypeus non-setose or with 1 dark seta. Maxillary palpus with 3 segments; in some specimens segment 2 and 3 fused; segment 1 longer than segment 2, segment 1 with 1–2 long sharp setae, with a dorsal patch of sensilla; segment 2 with 1 long sharp seta and 3–4 shorter truncate setae; segment 3 shortest, with 4–5 short truncate setae. Antennal flagellomere 4 1.8– 2 x as long as wide, neck shorter than broad; longest setae longer than the width of flagellomere. Thorax. Unicolorous dark brown. Setae dark. Anterior pronotum with 2–3 setae. Prothoracic episternum with 2–5 setae. Scutellum with 2 long setae. Wing. Length 1.3 mm. Width/length 0.40–0.45. Anal lobe rather distinct. R1/R 0.50–0.60. c/ w 0.70 – 0.75. r-m non-setose. bM non-setose or with 1 seta. Haltere pale brown. Legs. Pale yellowish brown. Front tibial organ with pale and sparse vestiture forming a patch. Front tibial spur slightly longer than tibial width. Abdomen.

Brown, slightly paler than thorax. Setae dark. Hypopygium, Figs 5 A, B. Brown, as abdomen. Gonocoxa longer than gonostylus; ventral setosity of gonocoxa sparse, setae at the apical part of the mesial margin not elongated. Gonostylus elongated, mesial side slightly impressed; setosity sparse, apicomesially with a few elongated setae; with a long and strong apical tooth; with 6–7 subapical megasetae (subequal in size, slender, straight or slightly curved, sharp) on a shallow mesial lobe,. Tegmen with small, sharp, apicolateral lobes, without a dorsal finger-like process.

Discussion. Corynoptera salmelai resembles C. spiciforceps in having a rather apically narrow gonostylus with a strong apical tooth and 7–8 narrow, perpendicularly placed megasetae at the apical third of the gonostylus. Unlike in Corynoptera spiciforceps , the gonostylus of C. salmelai is slightly bulged mesially at the megasetae, it lacks the elongated seta at the middle of its gonostylus, present in C. spiciforceps , and it has its tegmen with sharp apicolateral corners, whereas C. spiciforceps has its tegmen apically rounded ( Figs 5 and 6 ). Furthermore, C. spiciforceps has a distinct sensillar pit on its maxillary palpus, whereas the sensilla are in a patch in C. salmelai .

Etymology. The species is named after the Finnish entomologist, Dr. Jukka Salmela, Rovaniemi, for his outstanding collection activity.

Figures

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

FIGURE 6. Corynoptera spiciforceps sp. n. (holotype). A. Apical portion of front tibia, prolateral. B. Gonostylus, ventral. C. Part of hypopygium, ventral. Scale 0.10 mm.