Bolitophila (Bolitophila) antennata, Ševčík & Papp, 2004

Ševčík, J. & Papp, L., 2004, Bolitophilidae (Diptera) From Taiwan: A Family New To The Oriental Region, Acta Zoologica Academiae Scientiarum Hungaricae 50 (1), pp. 55-62 : 56-57

Bolitophila (Bolitophila) antennata sp. n.

( Figs 1 , 5–6 )

Holotype, male ( HNHM): Taiwan: Taichung Hsien, Anmashan Mts, 2090–2550 m, April 5–6,

2003, leg. M. Földvári, L. Papp, Ch.-M. Fu & H.-R. Tzuoo, No. 23, UV light traps.

Diagnostic characters. Vein R 4 ending in R 1. Posterior fork separatedfrom the vein above by a distinct crossvein. Anterior vein of posterior fork basally thin, but distinct. Stigma dark grey. No dark central spot on wing. Hairs on antennae remarkably long, about five times as long as the diameter of flagellomere. Parameres very long. Dark line between cerci.

Male. Body length 5.9 mm. General coloration brownish grey, legs yellowish brown, coxae yellow.

Head dark brown. Antennae with remarkably long hairs, about five times as long as the diameter of flagellomere ( Fig. 6 ). Scape and pedicel brownish yellow, about as long as wide, setose. Base of first flagellomere yellowish brown. Mouthparts andpalpi brownish yellow.

Thorax about as long as high. Mesonotum dark brown, with two thin lighter longitudinal stripes andhumeral areas yellowish. Scutellum brown, posterior margin yellow, with several short apical setae. Lateral sclerites andmediotergite bare. Halteres as long as thorax, brown, the stalk basally lighter.

Wings ( Fig. 5 ) hyaline, membrane only with microtrichia. Wing length 5.6 mm. Costa slightly producedbeyondR 5. Vein R 4 ending in R 1. Stigma dark grey. No distinct central spot, at most a faint grey cloudvisible. Posterior fork separatedfrom the vein above by a distinct crossvein. Anterior vein of posterior fork in basal fourth faint, but traceable.

Legs yellowish brown, coveredwith dark trichia andsetae. All coxae subequal in length, with several setae laterally. Femora cylindrical, narrow, covered with short black setae. Tibiae densely coveredwith dark trichia andseveral irregularly arrangedshort setae.

Abdomen brownish, all tergites and sternites covered with dark setae.

Terminalia ( Fig. 1 ) brown. Length of terminalia 0.4 mm. Ventral caudal margin of gonocoxites medially with a broad U-shaped depression. Gonostylus apically broadly rounded, without distinct appendages. Parameres remarkably long, hooked (from lateral view), with thin apical part, but rather blunt, not aculeated on apex. Aedeagal complex in the shape of turned-up Y, dark. Cerci narrow, rhomboid, tapered, with a dark longitudinal line between them.

Female unknown.

Biology unknown.

Etymology. The specific name refers to the pubescence of the antennae.

Discussion. The new species is characterizedby unusually long pubescence on antennae, combinedwith peculiar terminalia. The long hairs on antennae are typical also for the European species B.saundersi (CURTIS, 1836) , which has relatively short parameres, andfor B. spinigera EDWARDS, 1925 , with a distinct central spot on wing.

Figures

Figs 1–2. Bolitophila spp., males, dorsal view of terminalia (tergite 9 and cerci removed). 1 = B.antennata sp. n.; 2 = B. taihybrida sp. n. Scale bar: 0.1 mm

Figs 5–6. Bolitophila antennata sp. n., holotype male. 5 = left wing; 6 = pubescence of antennae