Atherigona tritici Pont & Deeming, 2001

Muller, B. S., 2015, Illustrated key and systematics of male South African Atherigona s. str. (Diptera: Muscidae), African Invertebrates 56 (3), pp. 845-845 : 902-903

publication ID 10.5733/afin.056.0301

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Atherigona tritici Pont & Deeming, 2001


Atherigona tritici Pont & Deeming, 2001 View in CoL

Fig. 47 View Figs 46–54 Atherigona tritici Pont & Deeming, 2001: 299 , figs 5–10.

Diagnosis: See A. rubricornis for diagnostic information.

Type material examined: Holotype ♂: ‘ EGYPT: Beni Sueif [Suef], Sids Agricultural Research Station, ex. Wheat deadheart, i–iii.1999, S.A.El Serwy, leg. Pont & Deeming, 1999’ ( NMWC).

Paratypes: EGYPT: 1♂ same data as holotype ( NMSA) (Previously NMW.Z.1987–144) . MALI: 1♀ Mourdiah, 3–12.x.1986, M. Matthews, J.C. Deeming ( NMSA) (Previously NMW.Z.1987–144) .

Type remarks: Paratype material examined was donated to the KwaZulu-Natal Museum ( NMSA). The type deposition information is hereby updated .

Distribution: Botswana, Egypt, Ethiopia, The Gambia, Mali, Namibia, Nigeria, South Africa, Uganda, Yemen.

Atherigona umbonata sp. n.

Fig. 15 View Figs10–18

Etymology: From the Latin umbo (knuckle, knob), referring to the shape of the hypopygial prominence.

Diagnosis: This species is most similar to A. aurifacies but differs from it in having its hypopygial prominence quite different compared to that of A. aurifacies ( Fig. 15c, d View Figs10–18 vs. Fig. 12c, d View Figs10–18 ). The trifoliate process has the lateral lobes appearing tapered in posterior view, compared to those of A. aurifacies that are more rounded. The lateral lobes are also hyaline on their basal half compared to A. aurifacies that has them entirely infuscated ( Fig. 12a View Figs10–18 vs. Fig. 15a View Figs10–18 ). Description:


Measurement s: Body length: 4.278 mm; wing: 3.600 mm; r­m crossvein ratio: 0.418. Head: Ground colour dark. All head setae and setulae infuscated. Occiput silver-grey dusted posteriorly and gold dusted laterally with narrow median part glossy. Ocellar triangle silver-grey dusted. Frontal vitta infuscated. Frontal plate silver-grey dusted with three pairs of proclinate frontal setae and two pairs of orbital setae; glossy around bases of setae. Parafacial gold dusted, at narrowest equal in width to aristal base. Scape infuscated, pedicel darkly ferruginous, postpedicel infuscated with slight ferruginous basal edge. Arista infuscated. Palpus entirely infuscated; apex truncated and dilated, with hyaline hairs and yellow vertex.

Thorax: Ground colour dark. Postpronotal lobe gold dusted, with three setae and 13 setulae. Pleura gold dusted. Proepisternum inconspicuous. Scutum grey dusted, with three 2-4 dorsocentral vittae, stopping before scutellum. Scutellum grey dusted; one pair of basal setae, one pair of discal setae and nine discal setulae, one pair of subbasal setae and one stronger pair of apical setae (cannot compare length due to damage to apical pair).

Legs: All legs yellow except for forelegs with apical half of femur with slight mark, apical half of tibia and first two basal tarsi infuscated.

Leg chaetotaxy: Fore femur with one submedial posteroventral seta; fore tarsi without any specialised chaetotaxy

Wings: Hyaline, except for slight brown smoky suffusion at areas around Sc­R 1 and the humeral cross-vein. Veins brown. Knob of halteres white with stalk yellow. Calypters white.

Abdomen: All tergites yellow; tergite 1+2 immaculate; tergite 3 with two medium sized dark-brown marks taking up just over two thirds of dorsal surface; tergite 4 with two small round markings, taking up a third of dorsal surface; tergite 5 immaculate. Hypopygial prominence knoblike ( Fig 15c, d View Figs10–18 ). Trifoliate process stem 2.2× the length of the apical process; basal quarter of median piece, basal half of lateral plates, hood and apical third of stem hyaline, the rest of process infuscated; median piece apically dilated, gradually dilating in profile, narrower than lateral plates; lateral plates without inner lobe, appearing tapered in posterior view. Surstylus without dark markings.

Female. Unknown.

Holotype ♂: SOUTH AFRICA : KwaZulu­Natal: Cathedral Peak , Didima, 28°57.000'S 29°14.395'E, 1422 m, 13–16.xii.2004, M.B. Mostovski ( NMSA; Type no. 2513). GoogleMaps

Distribution: South Africa.


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