Oligopogon ndumo, Londt, 2014

Londt, Jason G. H., 2014, A revision of Afrotropical Oligopogon Loew, 1847 (Diptera: Asilidae) with the description of eighteen new species, African Invertebrates 55 (2), pp. 269-269 : 297-298

Oligopogon ndumo sp. n.

Fig. 2D

Etymology: Named after the Zululand reserve from which most of the type specimens were collected.

Description:

Head: Dark red-brown to black, gold-silver pruinose, extensively black setose.Antenna: Dark red-brown. Segmental ratios: 1:1.2: 4.0:3.2 (scape, pedicel, postpedicel, style). Scape and pedicel of similar development, black setose. Postpedicel long, circular in cross-section, tapering gradually distally. Style of similar diameter to distal end of postpedicel, equipped with long black setae projecting from all surfaces. Face, frons and vertex dull gold-silver pruinose, mystax black, ocellar macrosetae black. Occiput silver pruinose except for two small elongate apruinose areas midway between dorsal eye margin and cervical region (see Fig. 2D), black setose dorsally, white ventrally. Face to head width ratio in anterior view 1:4.1 (face much narrower than one eye). Proboscis red-brown, straight, white setose. Palpi minute, 2-segmented, white setose. Thorax: Dark red-brown to black, extensively gold-silver pruinose, red-brown and yellow-white setose. Mesonotum: Extensively pruinose with following apruinose areas: much of postpronotal lobe, single lateral spot anterior to transverse suture, U-shaped mark laterally postsuture, much of postalar lobe. 2 black npl (other macrosetae poorly developed), general setae longish red-brown and yellow. Scutellum dark red-brown, extensively silver pruinose except for broad apical margin, fine dark red-brown setose (apical macrosetae poorly differentiated). Pleura uniformly strongly silver pruinose. Katatergal setae pale yellow-white. Legs: Coxae dark red-brown, silver pruinose, whitish setose. Trochanters dark red-brown, pale yellow-white setose. Femora dark red-brown, metathoracic femora with yellow-brown proximal and distal ends, mixed dark red-brown and pale yellowish setose. Tibiae and tarsi yellow-brown, mostly dark red-brown setose. Wings: 3.5 × 1.2 mm (holotype).Veins yellow. Membrane transparent, unstained, entirely lacking microtrichia.

Abdomen: Terga dark red-brown, largely apruinose except for silver pruinose anterolateral margins, white setose. Sterna dark red-brown, silver pruinose except for posterolateral areas, white setose. ♂ and ♀ terminalia red-brown.

Holotype: SOUTH AFRICA: 1♂ ‘ Ndumu Reserve [= Ndumo Game Reserve 26°55'S 32°15'E] / Ingwavuma dist. / Zululand, Natal / South Africa / 1–10.xii.63’, ‘collectors / B. & P. Stuckenberg’ ( NMSA).

Paratypes: MOZAMBIQUE: 1♂ ‘ 3.xii.2006 Mozambique / Sofala Prov. 30km S Caia / 18.02S- 34.02E / P. Schüle leg.’ ( MRAC) ; SOUTH AFRICA: 2♀ ‘ Ndumu Reserve / Ingwavuma District / Tongaland, S. Africa / B. & P. Stuckenberg / 1–10 December 1963 ’.

Distribution ( Table 1), phenology (Table 2) and biology: Known from the northern parts of KwaZulu-Natal in South Africa and Mozambique. All known specimens were collected in January. The habitat occupied by this species is not known, but is probably woodland savanna.