Classification > Family
Ceratopogonidae
> Subfamily
Ceratopogoninae
> Tribe
Ceratopogonini
> Genus
Stilobezzia
> Subgenus
Stilobezzia (Acanthohelea)
Stilobezzia (Acanthohelea) nigerrima Ingram & Macfie, 1931
male genitalia, dorsal view (CNCI)
Geographic distribution
Distribution
Record
- Argentina
- Río Negro
Other distribution
Chile
nigerrima Ingram & Macfie, 1931: 196 (female). Type locality: Argentin, Río Negro, PN Nahuel Hapi, Bariloche, 41°08’0.50”S, 71°18'37.00"W). HT F (BMNH). Distr.- Chile, Argentina (Río Negro: type locality). Refs.: Ingram & Macfie, 1931: 196.
Diagnosis: the only Patagonian species of Stilobezzia (Acanthohelea) with the thorax entirely dark brown, legs dark brown except coxae brown, trochanters and base of mid and hind femora slightly paler. Males sternite 9 with rounded, narrow and deep posteromedian excavation. Females anterior margin of sternite 8 convex with U-shaped posteromedian excavation.
Diagnosis: the only Patagonian species of Stilobezzia (Acanthohelea) with the thorax entirely dark brown, legs dark brown except coxae brown, trochanters and base of mid and hind femora slightly paler. Males sternite 9 with rounded, narrow and deep posteromedian excavation. Females anterior margin of sternite 8 convex with U-shaped posteromedian excavation.
- INGRAM, A. & J. W. S. MACFIE. 1931. Ceratopogonidae. In: Diptera of Patagonia and South Chile. Part II. Fasc. 4: 155-232.:155-232.
- CAZORLA, C. G & G. R. SPINELLI. 2007. A new species of Patagonian Stilobezzia (Acanthohelea) and a redescription of S. (A.) nigerrima Ingram and Macfie (Diptera: Ceratopogonidae). Trans. Am. Entomol. Soc. 133: 181-187.:183.
- CAZORLA, C. G & G. R. SPINELLI. 2015. A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae). J. Nat. Hist. 49: 155-209.:178.
