SCENOPINIDAE OF THE WORLD 309 



Thorax dorsum black, covered with brown and tan pollen, with 

 evenly spaced short black hairs; humeral callus cream, supra-alar 

 callus orange, scutellum black-brown with a tan median poUinose 

 patch; pleura black-brown, dusted with gray pollen. Wings brown 

 fumose, veins brown, M l-|-2 ending before reaching R5 or edge of 

 wing; halter stem yellow basally to brown distally, knob orange- 

 brown above and below with a tan median band. Legs with femora 

 red-brown, pollinose with orange knees; tibiae red-brown basally, 

 orange-brown distally; tarsi lighter basally, darker distally. 



Abdomen first three segments dark red-brown, granular; remaining 

 segments red-brown, shining; eighth segment elongate; see figure. 



Length: Male body 2.6 mm., wing L8 mm.; female body 4 mm., 

 wing 2.3 mm. 



Type-locality: Black Yam ma State Forest, New South Wales, 

 AustraUa; 11 November 1964 (D. H. Colless). 



Holotypes: Male (CSIRO). 



Allotype: Female, same data. 



205. Riekiella complexa, new species 



Figure 199 



Male. — Head black, overlain with gray scales on the back of the 

 head; eyes black-brown above, black below, meeting on the midline; 

 frons narrow, with a median ridge, extending half the distance to the 

 median ocellus, ocellar tubercle black-brown with gray scales, ocelli 

 red-brown; mouthparts black, well developed, extending to the base 

 of the antennae, oral cavity tan. Antennae black, the third segment 

 velvety giving off brassy sheen under light; see figure for details. 



Thorax dorsum black, overlain with brown pollinose scales, sparse 

 erect black hairs; humeral callus tan; pleural areas as on dorsum. 

 Wings smoky, with scaly appearance; veins brown, M 1+2 not 

 reaching R5 or tip of wing^; calypters large, fringed with long hairs; 

 halteres missing on both sides. Legs black-brown, with tarsi and knees 

 of femora red-brown. 



Abdomen second segment black-brown, shining; remaining seg- 

 ments pollinose ventrally, shining dorsally; nintli tergum black-brown, 

 pollinose, hairy dorsally, tan ventrally, formed into four long lobes, 

 resembling those of R. quadrifida but shorter. The terminalia were 

 lost on dissection; a rough sketch is provided; see figure. 



Female. — Unknown. 



Length: Male body 2.5 mm., wing 2 mm. 



Type-locality : Canberra, Australian Capital Territory, Australia ; 

 3 December 1962 (E. F. Riek). 



Holotype: Male (CSIRO). 



