DIPTERA 



17 



joint excavated and the arista hence sub-dorsal ; palpi and proboscis black. Thorax 

 and scutellum shining metallic green, pleurae and metanotum greenish, with greyish- 

 white tomentum, halteres bright orange-yellow, cilia of tegulae black. Abdomen con- 

 colorous with thorax, black-haired, hypopygium almost concealed, black, showing a 

 rounded hairy protuberance and a pair of small, short-haired, lancet-shaped appendages. 

 Legs blackish-brown, fore coxae and all the femora and tibiae with a metallic green 

 tinge ; coxae apparently unarmed, fore femora with a small subapical bristle on the 

 outer side and armed beneath with about a dozen short spines, arranged in two rows, 

 intermediate femora also with subapical bristle and armed beneath with a row of tiny 

 spines, hind femora with two bristles on the outer surface, and a row of minute spines 

 beneath, fore tibiae without conspicuous bristles, middle and hind tibiae each with about 

 four bristles on the outer surface. Wings greyish-hyaline, posterior cross-vein straight 

 or very slightly convex outwardly. 



H.AB. Oahu, four males, on wet rocks, Kaala Mts., over 2000 ft., INIarch 1S93. 



Fam. PIPUNCULIDAE. 



PiPUNCULus Latreille. 



(i) Pipiinculns iiiolokaioisis, sp. nov. 



J. Long. corp. 5 mm.; al. 7 mm. Parent and face black, with white tomentum 

 antennae with first two joints black, third acuminate, yellow with glistening white 

 pubescence. Thorax and scutellum shining black, the former in front with a slight trace 

 of tomentum, the latter furnished on its margin with about a dozen short bristles, pleurae 

 black, meso- and metapleurae and metanotum with whitish tomentum, halteres yellow. 

 Abdomen entirely shining black, the first segment with longish black hairs at the sides 

 of its anterior half, and on its posterior half banded with white tomentum, hypopygium 

 shining black. Coxae shining black, femora black with yellow bases and apices, tibiae 

 yellowish, with obscure brownish-black rings in the middle, tarsi reddish-yellow with the 

 apical joint black, claws and empodia light yellow, the former with black tips ; fore femora 

 beneath with two rows of fine short spines each near the tip, and about four fine hairs 

 near the base, intermediate and hind femora with numerous spines beneath in their 

 apical half, arranged in two rows. Wings slightly brownish tinged, clearer in their 

 basal third, stigma dark brown, as long as the 4th costal segment, small cross-vein before 

 the middle of the discal cell and opposite the termination of the auxiliary vein, second 

 longitudinal vein long, terminating beyond the level of the posterior cross-vein, last two 

 sections of the 4th longitudinal vein about equal in length. 



%. Long. Corp. 4 mm.; al. 6 mm. Similar to the male, but a little duller. Ovi- 

 positor reddish-yellow, reaching to the ist abdominal segment. Wings clear. 



F. H. III. 3 



