82 



U.S. NATIONAL MUSEUM BULLETIN 277 



49. Scenopinus norrisi, new species 



Figure 48 



Female. — Head black; eyes black-brown; postocular ridge narrow; 

 front granular and no wider than the ocellar triangle, with a small 

 median pit located one-third the distance from the antennae to the 

 median ocellus. Oral opening bordered on each side by a band of gray 

 pubescence which begins on the lower frontal areas above and to each 

 side of the antennal sockets and extends ventrally between the eye 

 margin and the oral opening. First antennal segment very short, 

 black-brown; second segment orange-brown, two to three times size of 

 first; third segment elongate, more than twice as long as broad, orange- 

 brown basally darkening to brown distally, blunt on the end. Mouth- 

 parts well developed, nearly filling the oral cavity, dark brown; palpi 

 long, exceeding over one-half the length of the oral opening. 



Figure 48. — Scenopinus norrisi, new species, female: a, wing, b, c, lateral and frontal aspects 

 of head; d, enlarged detail of antenna; e, ventral aspect of 8th sternum;/, dorsal aspect 

 of 8th and 9th segments; g, lateral aspect of 8th and 9th segments; h, 9th sternum and 

 bursa. 



Thorax black-brown, covered with a thin pile of short hairs. Wings 

 hyaline, with veins brown, space between Rl and R2 + 3 appears 

 filled, R4 branching beyond the middle of the cell; halter stem brown, 

 knob brown. Legs black-brown with tarsi orange-browui. 



Abdomen uniformly dark brown, thinly covered with posteriorly- 

 directed hairs; see figure for details of the eighth sternum and bursal 

 plate. 



Male. — Unknown. 



Length: Female body 4.5. mm., wing 3.5 mm. 



Type-locality: Brisbane, Queensland, Australia; 14 January 1954 

 (K. R. Norris). 



