Edenophorus irwini Sinclair 2002, sp. n.
Creators: name: Sinclair, Bradley J.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Empididae
Edenophorus
Edenophorus irwini

description: Edenophorus irwini sp. n.   (Figs 6, 7)  
Etymology: Named in honour of the collector, Mike E. Irwin, who has contributed greatly to the knowledge of South African Diptera.  
 Holotype male labelled: SOUTH AFRICA: KwaZulu-Natal: ‘ South Africa, Natal Prov / Karkloof Range,near Mt / Alida; temp.forest assoc/ 17 June 1974, near pond/ ME Irwin (2930Ab)’ (NMSA).   
Recognition: This species is distinguished by its short proboscis, presence of cell dm, and the enormous, erect male terminalia, with their cerci positioned anteriorly.  
Description:  
Male:  
 Head: Eyes nearly touching above antennae; facets above antennae enlarged; setulae on face; 4 pairs of setulae on frons, upper-most longest. Antenna with basal segments slightly paler than the postpedicel; scape very short, pedicel globular with fringe of setulae; postpedicel conical, clothed in fine pubescence; twice length of pedicel, gradually tapered to style. Stout occipital setae in several rows. Proboscis light brown, slightly longer than height of head; palpus one-quarter length of proboscis, pointed bearing long, pale setae.   
 Thorax: Dusted entirely with brownish grey pruinescence. Thoracic setae generally short, reduced to numerous rows: Acr biserial; dc uniserial, with 4 pairs of long bristles at prescutellar depression; inter-alar setulae scattered, extending to wing base; 2 pprn (lower directed forward, upper directed posteriorly) and numerous short setulae; 1 ph; 3 npl, posterior bristle short; 1 pal; 4 sctl, inner pair stronger, nearly twice length of outer. Antepronotum with 1 pair of short, stout setae. Upper half of anepisternum with greater than 10 setulae; precoxal bridge with 1 stout seta above fore coxa.   
Legs: Yellowish, darker on apical tarsal segments; clothed in fine setulae, lacking modified setae; fore coxa with 1–2 pairs of long pale lateral setae on lower half, longer than width of coxa.  
 Wings (length 2.4 mm): Stigma faint. Venation similar to E. knysna; cell dm present. Halter yellowish brown.   
 Abdomen: Pale brown, concolorous with thorax. T8 membranous, S8 divided into 2 small square sclerites.   
Terminalia (Figs 6, 7): Held upright, greatly enlarged compared to abdomen, cercus anterior; cercus and epandrium yellowish. Cercus thinly sclerotised, setose. Epandrium with slightly twisted finger-like lobe on inner margin. Hypandrium reduced. Phallus with large basal, inflated sperm chamber; apex encircled by subapical toothed crown; ejaculatory apodeme broad, stout, articulated at base of chamber, one-third length of terminalia. Postgonite triangular in posterior view, divergently encircling tip of phallus; fused posteriorly with base of phallus.  
Female: Unknown.  
 Additional material examined: Paratypes: SOUTH AFRICA: KwaZulu-Natal: 4 males, same data as holotype (NMSA).
description: Published as part of Sinclair, Bradley J., 2002, Revision of the South African endemic genus Edenophorus Smith (Diptera: Empididae), pp. 109-122 in African Invertebrates 43 on pages 115-116, DOI: 10.5281/zenodo.7666039