Euscelidia ochricornis (Loew, 1858) Dikow, 2003

Dikow, Torsten, 2003, Revision of the genus Euscelidia Westwood, 1850 (Diptera: Asilidae: Leptogastrinae), African Invertebrates 44 (2), pp. 1-131 : 37-38

Euscelidia ochricornis (Loew, 1858) , comb. n. ( E. brunnea species-group)

Figs 18 , 19 , 23

Leptogaster ochricornis Loew, 1858: 352 ; 1860: 101; Hull 1962: 300; Oldroyd 1980: 358.

Diagnosis: The species is distinguished from congeners by the short appressed grey and brown pruinosity on the sct with two narrow median apruinose stripes and three lateral apruinose spots, the few microtrichia on the wings, and features of the ơ terminalia (d aed shea open, extending gonp).

Redescription: Head: Black; fc silver pruinose, fc gib indistinct, mystax white, many macrosetae; oc tr white pruinose dorsally; occ silver pruinose, setae white; Antennae - scp light brown, setae white; ped yellow, white setae ventrally, brown setae dorsally, white pruinose; pped yellow, white pruinose; apsel yellow; Thorax: Orange to black; sct predominantly orange, black on apruinose areas, predominantly silver pruinose, brown pruinose medially, 2 median narrow longitudinal stripes, not reaching posterior margin, and 2 presut lateral spots and 2 psut lateral spots apruinose, macrosetae: white, 1 npl s, 1 spal s; sctl silver pruinose, ds sctl s and sctl s long, white; Legs - yellow to light brown; pro and meso fem light brown, meta fem pale yellow proximally, light brown, clubbed, brown stripes laterally on club; tib brown, pale yellow stripe, not reaching tip on meta tib, anteriorly; emp distinct, very short; Wings - hyaline, few microtrichia scattered on remigium and margins; ptero indistinct; cell d terminating in 2 veins; hlt light brown; Abdomen: Black; T sometimes proximally orange, T brown pruinose medially, grey pruinose on anterior and posterior margins, T1 with black setae, T 2 in proximal half with white setae laterally, S predominantly grey pruinose, apruinose anteriorly; ơ terminalia Figs 18 , 23 - sur pointed distally, lobe ventrally; hypd bent upwards, divided into 2 lobes; d aed shea open, extending gonp, lat pr aed short; lat apod simple.

Type material - The ^ holotype is labelled ‘261 / 92. / 82 52 (red label) / Leptogaster ochricornis / HOLOTYPE Leptogaster ochricornis Loew, 1858 by T. Dikow 2001 (red label)’. The specimen is directly mounted, is in good condition (left meta leg and abdomen (attached to label) broken), and is deposited in the NHRS.

Type locality and distribution ( Fig. 19 ): South Africa , ‘ Caffraria’, no co-ordinates available. The type specimens were collected by Wahlberg, who travelled in south-eastern South Africa ( Usher 1972) . South Africa, Swaziland .

Material examined: SOUTH AFRICA: KwaZulu-Natal: 1^ Ndumu Reserve , 2655'S 3215'E, 1–10.xii.1963 ; 2 ^^ 1ơ False Bay Park, 2758'S 32 22'E, 23–24.iv.1988 ; 1 ơ Weenen , 2851'S 30 04'E, iv.1924 ; Northern Prov: 1^ Gravelotte , 2356'S 30 37'E, 17.xi.1978 ; 1^ Silkaatsnek, 2527 Db, 1972; SWAZILAND: 3^^ 2ơơ Ngogolo , 26 24'S 3136'E, 24.iv.1991 ; 1 ^ Mbuluzi Nature Reserve , 2608'S 32 00'E, 25.iv.1991 .

Depository: BMNH, NMSA.

A B C

Figures

Fig. 18. Aedeagus of Euscelidia ochricornis. A. Lateral. B. Dorsal. Scale line = 1 mm.

Fig. 19. Distribution. Euscelidia brunnea, circles; E. capensis sp. n., star; E. ochricornis, squares; E. pipinna sp. n., pentagon.

Fig. 23. ơ terminalia. Euscelidia ochricornis. A. Dorsal. B. Ventral. C. Lateral. Scale line = 1 mm. Aedeagus in Fig. 18.