Atherigona (Atherigona) cuanavaleensis Magoai 2025, sp. nov.

Atherigona (Atherigona) cuanavaleensis Magoai sp. nov. Figs 7, 13 Type material examined. Holotype: Angola • 1 ♂; Moxico, Tempué, Cuanavale source lake, 13°5'31.34"S, 18°53'38.53"E, 5–7 Nov. 2022, T. A. Bellingan leg., Malaise trap; AMGS -ENT 101815 (AMGS). Type condition. Type specimen is in good condition. Specimen was relaxed, and trifoliate process teased out of abdomen for examination and figuring. Deposition information. Holotype is deposited in AMGS. Diagnosis. Atherigona cuanavaleensis Magoai, sp. nov., has an overall dark appearance. The species is most similar to Atherigona tigris, Muller 2015, in overall appearance, with ferruginous scape and pedicel, as well as infuscated postpedicel except for basal margins, which are ferruginous. A shallow bifurcated hypopygial prominence, a trifoliate process with median piece linear with slight abrupt apical dilation in posterior view, strongly dilated in profile, and lateral plates with inner lobes. It differs from it by not having wings with slight brown smoky suffusion at apex of Sc - R 1. However, A. tigris has lateral plates appearing wider than median piece in profile compared to that of A. cuanavaleensis, which has lateral plates appearing as wide as median piece in profile. Description. Measurements (Holotype): Body length: 3.6 mm, wing: 2.65 mm, r – m crossvein ratio: 0.38. Male. Head: Ground colour dark; all head setae and setulae infuscated; upper occiput silver-grey dusted posteriorly with narrow median part glossy, laterally also silver-grey dusted, however, lower occiput golden-grey dusted; ocellar triangle grey dusted; frontal plate silver-grey dusted with three pairs of proclinate frontal setae, one much weaker and shorter near frontal angle, also with two pairs of reclinate orbital setae; frontal vitta infuscated, with dull lighter ferruginous suffusion at apex; parafacial golden-grey dusted, at narrowest as wide as aristal base; scape and pedicel ferruginous; postpedicel mostly infuscated except inner basal third ferruginous; arista medially ferruginous with base and apex infuscated; palpus yellow with base somewhat infuscated, with four strong, infuscated setulae at base and some hyaline setulae at apex; vibrissal angle with one long and strong and two shorter vibrissal setae, surrounded by three weak setulae. Thorax: Ground colour dark; postpronotal lobe golden-grey dusted in profile, appearing whitish grey dusted when viewed dorsally, postpronotal lobe with three setae: two strong, one weaker, and 11 setulae; scutum silver-grey dusted, with three faintly light brown dorsocentral vittae, not extending to the scutellum; scutellum silver-grey dusted dorsally and margins golden-grey dusted; one pair of basal setae, one pair of discal setae and two discal setulae, one pair of subbasal setae and one pair of apical setae, subbasal and apical pair subequal; proepisternum, proepimeron, anterior margins of anepisternum and katepisternum golden-grey dusted, remaining pleura silver-grey dusted; proepimeron with inconspicuous weak process, with two setae, one stronger than the other, and one setula; katepisternal setae 1: 1: 1 and with a row of three small setulae below anterior katepisternal seta. Anterior spiracle surroundings golden-grey dusted, posterior spiracle surroundings silver-grey dusted. Legs: Coxae yellow, slightly whitish dusted; all legs yellow except for foreleg with apical half of tibia and basitarsus with lightly infuscated appearance depending on viewing angle; no specialized chaetotaxy. Wings: Hyaline; veins light-brown; halter with white knob and yellow stalk; calypters somewhat hyaline with light-brown margins. Abdomen: All tergites and sternites yellow and without dorsal median vittae; tergite 1–4 with slight greyish dusted appearance on posterior margins, tergites 3 and 4 lightly grey dusted on dorsal surface; tergite 1 + 2 immaculate; tergites 3 and 4 each with two small dark spots; tergite 5 immaculate. Terminalia: Hypopygial prominence with a shallow bifurcation, the processes large and rounded apically. Trifoliate process infuscated except for bases of median piece and lateral plates, entire hood, and apical third of stem, which are hyaline; median piece linear in posterior view with slight but abrupt apical dilation, basal third and two-thirds of margin yellow in profile and strongly dilated; lateral plate with inner lobe, appearing as wide as median piece in profile; inner lobe rounded and visible in profile; surstylus without any infuscation. Female. Unknown. Etymology. Named after the Cuanavale River source lake in Angola. Feminine adjective in the nominative singular case. Distribution. Angola.