DIPTERA 9 



and metanotum brownish ochraceous, halteres with light yellow stem and blackish club. 

 Abdomen dark brown, hind margins of segments slightly paler, t genitalia dark brown, 

 % with reddish-yellow ovipositor. Legs light brown, knees paler. Wings hyaline, 

 stigma distinct, origins of 2nd and 3rd longitudinal veins and all tbe transverse veins 

 slightly clouded, in the % specimen the discal cell is open ; termination of auxiliary vein 

 in the Z specimen slightly before the origin of the 2nd vein, but in the $ a little beyond 

 it, subcostal cross-vein in $ before, in % opposite the origin of the 2nd vein. Hence the 

 species appears to be remarkably variable in its venation, especially as in the Z specimen 

 the auxiliary vein of the right wing terminates much nearer the origin of the 2nd vein 

 than that of the left wing. 



Hab. Haleakala, Maui, 5000 ft.. May 1896, one male and one female. 



(6) Dicraiioniyia latifrons, sp. nov. 



^. Long. Corp. 5 mm. ; al. 6^ mm. Occiput cinereous, eyes widely separated, 

 front cinereous with white tomentum, antennae yellow, darker towards the tip. Thorax 

 light cinereous with broad central stripe and two short lateral stripes dark brown, 

 pleurae glistening yellowish-white, a spot beneath the root of the wings almost silvery, 

 halteres pale with dark knob. Abdomen dark brown, segments edged posteriorly with 

 light yellow, genitalia light yellow. Legs yellowish-brown, last two or three tarsal joints 

 darker. Wings long and narrow, hyaline, stigma very pale, auxiliary vein terminating 

 opposite the origin of the 2nd vein, subcostal cross-vein a little before this, tip of ist 

 long-itudinal vein connected with the costa and the 2nd longitudinal vein bv distinct 

 cross-veins. 



Hab. Oahu, Waialua, Koolau range. Beach, one male, February 1893. 



Tkimicra Osten-Sacken. 

 (i) Triviicra lateralis, sp. nov. 



Z. Long. Corp. 6 mm. ; al. 8 mm. Head ochraceous ; vertex and occiput with dark 

 central stripe and conspicuous long hairs, antennae blackish, with first two joints yellow, 

 palpi dark. Thorax brownish-yellow above, long-haired, with three rather indistinct 

 dark brown narrow stripes, the central one somewhat shining, pleurae pale ochraceous, 

 scutellum and metanotum dark brown, covered with cinereous tomentum, halteres pale. 

 Abdomen dark brown with the lateral margins (but not the posterior margins) pale 

 yellowish, genitalia conspicuous, reddish-yellow. Legs testaceous, densely clothed with 

 long, fine erect hairs, femora with a broad brownish ring before the tip, apices of meta- 

 tarsi and succeeding joints blackish. Wings slightly brownish tinged, 2nd longitudinal 

 vein slightly infuscated. 



F. H. III. 2 



