114 



U.S. NATIONAL MUSEUM BULLETIN 277 



Length: Male body 3-3.7 mm., wing 2.3-2.6 mm.; female 

 body 4-4.5 mm., wing 3.5 mm. 



Type-loca.ity : Honolulu, Oahu, Hawaii; January 1953, (D. E. 

 Hardy). 



Types: B. P. Bishop Museum, Honolulu. 



75. Scenopinus alalacteus, new species 



FiGUHE 75 



Male.— Head black-brown; eyes red-brown above, black-brown 

 below, extending to back of head; frons subshining, narrow, tri- 

 angular, extending halfway to ocellar tubercle, with a median de- 

 pression; ocellar triangle black-brown, elevated, ocelli clear; back of 

 head concave, lower portion with long white hairs; mouthparts 

 brown, nearly filling oral cavity, palpi tan, nearly as long as rostrum. 

 Antennae red-brown: first segment short; second twice as large as 

 first; third oval, twice as long as first two combined. 



Figure 75. — Scenopinus alalacteus. new species, male, female: a, wing; h, d, lateral and frontal 

 aspects of male head; c, lateral aspect of female head; e, f, enlarged frontal and lateral 

 aspects of female head; g, enlarged detail of male frons; h-j, ventral, lateral and posterior 

 aspects of male terminalia; k, ventral aspect of female 8th sternum; /, lateral aspect of 

 female 8th and 9th segments; m, female 9th sternum and bursa. 



Thorax dorsum black-brown with a patch of silvery pile above 

 the humeral callus, humeral and supra-alar calli tan; pleura red- 

 broAvn. Wmgs mOky white, veins tan; halter stem brown, knob 

 white. Legs red-brown except tarsi straw colored at base, darker 

 at tip. 



