Cydistomyia pilosus Mackerras & Spratt, 2008

Mackerras, I. M., Spratt, D. M. & Yeates, D. K., 2008, Revision of the horse fly genera Lissimas and Cydistomyia (Diptera: Tabanidae: Diachlorini) of Australia, Zootaxa 1886 (1), pp. 1-80 : 42-44

Cydistomyia pilosus Mackerras & Spratt , sp. nov.

( Fig. 31 )

Type material. Holotype female, Qld , Maroochy Horticulure Research Station, Nambour, Mar., 1985, ( QM # T144401 ) . Paratype females (2), same locality as holotype, Mar., Apr., ( QDPI) .

Non-type material examined. QLD: 1♀ Mt. Glorious , 16.i.1972, G.B. & S.R. Monteith ( UQIC) , 1♀ 24.ii.1972, Gress ( ANIC) . NSW: 1♂ Wardell Cemetery , 16.x.1998, D.K. Yeates ( UQIC) ; 1♂ Mooney Mooney Creek nr Gosford, 16.xii.1975, G. Daniels ( GDCB) .

Diagnosis. A robust 14–15 mm dark brown to black species with most of body except eyes covered in dense black hairs, unlike any other species described herein and superficially resembling C. crepuscularis Oldroyd of New Guinea.

Female. Head. Eyes (relaxed) dark red brown, bare. Frons parallel, narrow, index 5.2, tomentum grey brown with scattered short black hairs; vertex hollow, vertical triangle grey with black hairs; ocellar tubercle indistinct, brown, anterior ocellus occasionally present; callus bulging brown, pyriform, not full width of frons at base, with uniformly tapered extension reaching to upper third of frons. Subcallus with pale brown tomentum, no hairs; parafacials and face pale brown, with long black hairs; beard black. Antennal scape and pedicel greyish brown, with black hairs, pedicel with slight dorsal anterior prolongation; flagellum pale orange; basal plate relatively narrow, with small dorsal tooth. Palpi pale brown, with long black hairs.

Thorax. Scutum and scutellum greyish brown, with fine black hairs; scutum with broad median and narrow lateral black vittae. Pleura grey, with long black hairs.

Legs. Legs dark brown, with dense black hairs.

Wings. Wings uniform light brown, costal cell suffused with brown, stigma brown.

Abdomen. Dark brown to black, with black hairs, first and second tergites more brown than black. Patches of white hairs on lateral apical margins of tergites 1–4. Venter dark brown to black, with black hairs.

Male. Similar to females but abdomen more brown than black both dorsally and ventrally. Body with more and longer black hairs. Eyes bare, upper facets enlarged. Ocellar tubercle not visible. Palpi fawn, with long black hairs, second segment plump, tapering almost uniformly to fine round tip.

Distribution. From SE coastal QLD S to near Gosford NSW.

Etymology. The specific epithet derives from the Latin for hairy and refers to the dense black hairs covering the body with the exception of the eyes.

Figures

FIGURES 31–33. 31. Cydistomyia pilosus Mackerras & Spratt, sp. nov. frons, palp, antenna, female terminalia, sternite 8, spermathecal bulb. 32. Cydistomyia triangularis Mackerras & Spratt, sp. nov. frons, palp, antenna, female terminalia, sternite 8, spermathecal bulb. 33. Cydistomyia duplonotata (Ricardo) frons, palp, antenna, female terminalia, sternite 8, spermathecal bulb.