Corynoptera vagula Tuomikoski, 1960

Vilkamaa, Pekka & Hippa, Heikki, 2006, Corynoptera vagula Tuomikoski and allied species (Diptera: Sciaridae), Zootaxa 1150, pp. 31-42 : 33-34

Corynoptera vagula Tuomikoski, 1960

Corynoptera vagula Tuomikoski, 1960: 44 .

Material examined. Holotype male: FINLAND; Lk (Lapponia kemensis), Rovaniemi, Pisavaara, 19.viii.1957, R. Tuomikoski ( MZH). Other material. FINLAND, Li (Lapponia inarensis), Inari, Sarmitunturi, eutrophic fen, 6.vii.–1.viii.2004, J. Salmela, 1 ɗ ( PJSC), Oa (Ostrobothnia australis), Kauhajoki, Kauhaneva mire, 13.viii.–4.x.2004, J. Salmela, 5 ɗ ( MZH and PJSC), Tb (Tavastia borealis), Toivakka, Ruostesuo mire (6886:3443), Malaise trap, 29.vii.–30.viii.2004, 2 ɗ ( MZH), same data but 30.viii.–18.x.2004, 1 ɗ ( PJSC), CANADA, Quebec, Kuujjuarapik, 55º17’N, 77º48’W, forest fire site, yellow trap, 1.–19.viii.1990, S. Koponen, 2 ɗ ( NRM).

Description (male). Head ( Figs. 4 , 5 ): Eye bridge 2 or 3 facets wide. Anterior vertex non­setose, with pair of setigerous papilla or campaniform sensilla. Prefrons setose, setae (20–25) fine and strong. Clypeus with 1–3 setae. Antennal scape and pedicel normal. Antenna with 14 flagellomeres; flagellomeres subcylindrical, length/width of flagellomere 4 1.90–2.15, necks normal ( Fig. 5 B). Flagellomeral vestiture of longer and shorter setalike sensillae and hyaline sensillae. Maxillary palp with 3 palpomeres, palpomere 1 with 1 seta, hyaline sensillae scattered or in indistinct patch ( Fig. 4 C).

Thorax: Dark brown, setae pale. Notum with acrostichals in 1 row, dorsocentrals in 2 indistinct rows (similar to Fig. 4 B). Scutellum with both weak and strong setae. Posterior pronotum non­setose. Anterior pronotum with 2 or 3 setae, episternum 1 with 5–8 setae. Wing: Length 1.3–1.6 mm, width/length 0.45, c/ w 0.50 –0.75, R1/R 0.45–0.50. Veins C and R setose, R5 with many dorsal and few ventral setae, bM, r­m, M and Cu non­setose. Anal lobe rather weak, similar to Fig. 4 A. Legs ( Fig. 6 ): Brown. Femora slender, tibiae slender, straight; tibial spurs 1:2:2, the latter 2 subequal in size, longer than apical width of corresponding tibia. Front and middle tibia with few ventral and lateral, slightly stronger setae, hind tibia in addition with dorsal row of stronger setae. Retrolateral apical setae of hind tibia strong. Front tibia with row of few slightly modified setae on common basal plate, and 1 or few similar setae near row ( Fig. 6 C). Tarsi normal, length of front basitasomere/length of front tibia 0.50–0.60. Tarsal claws simple. Abdomen: Pale brown, setae pale, fine. Normal. Sternite 8 with 3–6 setae. Hypopygium ( Fig. 1 ): Gonocoxite normal, longer than gonostylus, with 1 ventral elongated seta at apicomesial corner, sides (halves) narrowly fused basoventrally, this intercoxal area simple. Gonostylus elongated, mesially slightly impressed, without apical tooth, with group of strong subapical and pair of mesial megasetae with distinct basal bodies. Tegmen non­modified, with slightly sclerotized parameres and membraneous apical part. Aedeagus simple. Aedeagal teeth normal. Tergite 10 (cercus) normal. Sternite 10 with 1 seta on each half.

Female. Unknown.

Discussion. See under C. fratercula .

Figures

FIGURE 1. Corynoptera vagula Tuomikoski (A and B holotype, C and D from Kuujjuarapik). A, part of hypopygium. B, D, gonostylus. C, tegmen and associated structures, ventral view. Scale 0.10 mm.

FIGURE 4. Wing (A), dorsal view; thoracic dorsum (B), lateral view; and maxillary palp (C – E), dorsal view. A, Corynoptera robustior sp. n. (holotype). B – E, C. fratercula sp. n. (B and E holotype, D paratype from Alaska). C, C. vagula Tuomikoski (from Kuujjuarapik). Scale for A 0.50 mm, for B 0.20 mm, for C – E 0.05 mm.

FIGURE 5. Antennal flagellomere 4, ventral view. A, Corynoptera fera Mohrig & Heller (from Somero). B, C. vagula Tuomikoski (from Kuujjuarapik). C, C. fratercula sp. n. (holotype). D, C. robustior sp. n. (holotype). E, C. armigera sp. n. (holotype). Scale 0.05 mm.

FIGURE 6. Apex of front tibia, prolateral view. A, Corynoptera armigera sp. n. (holotype). B, C. Corynoptera fera Mohrig & Heller (from Somero). C, C. vagula Tuomikoski (holotype). D, C. fratercula sp. n. (holotype). E, C. robustior sp. n. (holotype). Scale 0.05 mm.