Atherigona chrysohypene, Muller, 2015

Muller, B. S., 2015, Illustrated key and systematics of male South African Atherigona s. str. (Diptera: Muscidae), African Invertebrates 56 (3), pp. 845-845 : 863-864

publication ID	https://doi.org/ 10.5733/afin.056.0301
persistent identifier	https://treatment.plazi.org/id/039387FE-FFCF-E00C-FE46-F9C4FE19F93C
treatment provided by	Felipe
scientific name	Atherigona chrysohypene
status	sp. nov.

Treatment

Atherigona chrysohypene View in CoL sp. n.

Fig. 46 View Figs 46–54

Etymology: From the Greek chrysops (golden) and hypene (moustache), referring to the very characteristic golden yellow vibrissae on the jowls.

Diagnosis: This species has golden yellow vibrissae, similar to that of A. angulata ( Fig.5 View Figs 1–9 ) and A. pulla ( Wiedemann, 1830) ( Fig. 6 View Figs 1–9 ) and keys to A. marginifolia van Emden, 1940 ( Fig. 19 View Figs 19–27 ) in Deeming (1971) as well as Dike (1989 a), but differs greatly in the overall structure and colouring of the trifoliate process and shape of the hypopygial prominence ( Fig. 4 View Figs 1–9 ).

Description:

Male.

Measurement s: Body length: 3.162 mm; wing: 2.8 mm; rm crossvein ratio: 0.403.

Head: Ground colour dark. All head setae and setulae infuscated except for vibrissae which are all golden yellow. Occiput grey dusted with narrow median part glossy, laterally golden dusted. Ocellar triangle grey dusted. Frontal vitta infuscated in basal and yellow in apical half. Frontal plate entirely grey dusted with three pairs of proclinate frontal setae and two pairs of orbital setae. Parafacial golden dusted, wider at narrowest than aristal base. Scape, pedicel and postpedicel ferruginous (some paratypes with dorsal margins of postpedicel infuscate). Arista brown. Palpus yellow; apex truncated and dilated, with hyaline hairs.

Thorax: Ground colour dark. Postpronotal lobe golden dusted, with three setae and 11 setulae. Pleura golden dusted except for meron which is grey dusted. Proepisternum inconspicuous and gold dusted. Scutum grey dusted, with three very faint, barely visible 2-4 dorsocentral vittae, stopping before scutellum. Scutellum grey dusted; one pair of basal setae, one pair of discal setae and six discal setulae, one pair of subbasal setae and one stronger pair of apical setae (subbasal 0.7× apical).

Legs: All legs yellow except for fore tibia and tarsi which are entirely infuscated.

Leg chaetotaxy: All fore tarsi except for basitarsus with long dorsal setulae.

Wings: Hyaline, except for slight brown smoky suffusion at areas surrounding Sc R 1 and the humeral crossvein. Veins dark-brown. Knob of halteres white with stalk yellow. Calypters white.

Abdomen: All tergites yellow; tergite 1+2 immaculate; tergites 3 and 4 with a pair of small dark spots, taking up a third of dorsal surface; tergite 5 immaculate. Hypopygial prominence bilobate. Trifoliate process stem 2.5× the length of the apical process; stem and hood lighter than rest of process which is infuscated, lateral plates and median piece infuscated; median piece apically dilated, cordiform, wider than lateral plates in posterior view; lateral plates without inner lobes. Surstylus without dark markings. Female. Unknown.

Holotype ♂: SOUTH AFRICA: Free State: Brandfort, Florisbad Research Station , 28°46.039'S 26°04.234'E, Acacia Savanna , 4–6.iv.2009, A.H. Kirk-Spriggs, Malaise trap ( BMSA (D) 05557). GoogleMaps

Paratypes: 4♂ same data as holotype ( BMSA (D) 05522, 05523, 5546, 05566) GoogleMaps .

Other material examined: SOUTH AFRICA: Eastern Cape: 2♂ Grahamstown (plot 5280), Three Chimneys farm, 33°18.542'S 26°29.846'E, 2–13.iii.2008, A.H. Kirk-Spriggs, Malaise trap ( AMGS) GoogleMaps ; Free State: 1♂ 42 km SW of Winburg , 28°45'S 26°45'E, 1500 m, Grassland & bushes, 20.iii.1991, J.G.H. Londt & A.E. Whittington ( NMSA) GoogleMaps ; Gauteng: 2♂ Johannesburg , 18.i.1953, Paterson ( NHMUK) ; 1♂ Johannesburg , 26.xii.1946, F. Zumpt ( NHMUK) ; 1♂ Pretoria , 26.ii.1916, C.J. Swierstra ( NMSA) ; KwaZuluNatal: 1♂ Royal Natal National Park , 28°41.362'S 28°56.327'E, 1425 m, stream, y-wood, 10–13.xii.2004, M.B. Mostovski, Malaise trap ( NMSA) GoogleMaps .