DIPTERA 



8i 



Emperoptera\ gfen. nov. 



Near Chrysotus, but wings much reduced, being represented only by a somewhat 

 thickened, curved filiform structure, with an apparent joint (or perhaps weakness) near 

 the base, hairy along the anterior margin for its whole length, and furnished at its tip 

 with a conspicuous bristle. Front broad, triangular, face narrow, especially just below 

 the antennae, where the eyes nearly meet ; antennae short, the third joint hairy, arista 

 dorsal, very long, and distinctly pubescent. Thorax smooth and polished, scutellum 

 with two very long and strong bristles, halteres apparently absent (I cannot find any 

 trace of them in the few specimens before me). Abdomen comparatively large and 

 elongated, hypopygium small and indistinct. Legs long with stout femora, unarmed 

 except the intermediate and hind tibiae. 



Type of genus : E. niirabilis, sp. nov. 



( I ) Eiupcroptera mirabilis, sp. nov. 



Long. Corp. i-^ — 2 mm. Front black and polished, with a very slight dark blue 

 (steely) tinge, face black with a silvery spot just above the oral opening ; antennae 

 black, third joint very short, hairy and pointed, arista very long, whitish and distinctly 

 pubescent. Thorax bluish-black, highly polished and with few bristles, sometimes with 

 a greenish tinge, appendages (? wings) dark brown, much shorter than the legs, 

 scutellum rather dull and blackish-brown, .sometimes a little yellowish at the tip, with 

 two strong setae which reach to the apex of the second abdominal segment. Abdomen 

 black and polished, but duller than the thorax, slightly pubescent, base of first segment 

 sometimes yellowish. Legs yellowish-testaceous, tips of femora and tarsi a little darker. 

 Hind femora with one or two small spines near the apex, intermediate and hind tibiae 

 each with four bristles on their outer surface, legs otherwise unarmed. Under a high 

 power the hind tibiae show at the extreme tip, on the outer side, a small transverse 

 comb of about ten minute bristles. 



Hab. Oahu, 5 specimens on Freycinetia, Koolau range, December 1900; 

 4 specimens "back of Malukia " December rgoo. 



' €/i7n7pos, crippled, maimed. 



II — 2 



