Bradysia clavistylis, Vilkamaa, Pekka, Hippa, Heikki & Mohrig, Werner, 2012

Vilkamaa, Pekka, Hippa, Heikki & Mohrig, Werner, 2012, The genus Bradysia Winnertz (Diptera, Sciaridae) in New Caledonia, with the description of thirteen new species, Zootaxa 3489, pp. 25-44 : 28-30

Bradysia clavistylis sp. n.

Figs 3 A–D

Material studied. Holotype male. NEW CALEDONIA, Mont Nondoué, sclerophyllous forest, 3.vii.1992, Bonnet de Larbogne, Chazeau & Guilbert (in MNHN). Paratypes. 22 males, same data as holotype (in MZH and PWMP); 1 male, Rivière Bleue N.P., (parc 6), dense forest, fogging, 20.i.1993, Bonnet de Larbogne, Chazeau & Guilbert (in SMNH).

Description. Male. Head. Brown, antennal flagellomeres 2–14 unicolorous brown, scapus, pedicellus and flagellomere 1 yellow; maxillary palpus very pale brown. Eye bridge 3 facets wide. Face with 12–16 scattered longer and shorter setae. Clypeus with 1–2 setae. Maxillary palpus with 3 palpomeres; palpomere 3 longer than palpomere 1, palpomere 2 shortest; palpomere 1 with 1 seta, with a small dorsal patch of sensilla in a shallow depression; surface of antennal flagellomeres rough, body of flagellomere 4 ( Fig. 3 A) 1.9–2.2x as long as wide, the neck as long as broad, the longest setae shorter than the width of flagellomere. Thorax. Pale brown, setae dark. Anterior pronotum with 3–4 setae. Episternum 1 with 3–9 setae. Scutum with long dorsocentrals, with some longer and shorter laterals, scutellum with 2 longer and some short setae. Wing. Hyalinous. Length 1.1–1.3 mm. Width/ length 0.45–0.50. Veins distinct. R1/R 0.50–0.70. c/ w 0.75 –0.85. r-m and than bM subequal in length. M, CuA, r-m and bM non-setose. Legs. Yellow. Coxal setae pale. Apical part of front tibia ( Fig. 3 B): tibial organ with pale vestiture forming a short row. Front tibial spur slightly longer than the tibial width. Claws without teeth. Abdomen. Setae dark. Hypopygium, Figs 3 C, D. Brown, concolorous with abdomen. Gonocoxa narrow, longer than gonostylus, mesial margin with sparse setosity. Gonostylus narrow, rather straight, slightly narrowed towards apex, with the mesial side weakly impressed at apical half; with dense apical setosity, with a strong curved apical tooth, with 5–6 subapical megasetae. Tegmen truncate, with straight lateral sides, weakly sclerotized, with area of aedeagal teeth.

Discussion. Bradysia clavistylis belongs to the Bradysia tilicola group in the sense of Menzel and Mohrig (2000). See also under Bradysia aequispina .

Etymology. The name is derived from the Latin word clavus, nail, with the suffix – gera, bearing, referring to the prominent, clawlike apical tooth of the gonostylus.

Figures

FIGURE 3. Bradysia clavistylis sp. n (A, C, D holotype, B paratype). A. Antennal flagellomere 4, lateral view. B. Apical part of front tibia, prolateral view. C. Part of hypopygium, ventral view. D. Gonostylus, ventral view. Scale 0.1 mm.