38 FAUNA HAWAIIENSIS 



(9) Coenosia striata, sp, nov. 



$. Long. Corp. 4^ mm. ; al. 4 mm. Front one-third of the width of the head, dark 

 reddish-brown, orbits and vertical triangle lighter, with obscure greyish tomentum, face 

 with greyish-yellow tomentum, palpi light yellow, antennae obscure yellowish-brown, the 

 basal joints darker, arista dark, pubescent in the basal half. Thorax with two presutural 

 dorso-central bristles, obscure cinereous with three narrow stripes on the dorsum and the 

 region between the humeri and the insertion of the wings brownish, pleurae and 

 scutellum cinereous, halteres yellow. Abdomen shining blackish, with the first and fifth 

 segments obscure reddish-yellow, all the segments with a narrow yellowish hind margin, 

 first three with lateral and the third and fourth with hind marginal bristles. Legs 

 yellow, intermediate and hind femora darker at the tip and all the tarsi black ; fore 

 femora with three rows of bristles, those on the under surface much longer than the rest, 

 intermediate and hind femora with one row of bristles in front, and two rows beneath, 

 the former with two subapical bristles above and the latter with one, fore tibiae w'ith two 

 subapical bristles in front and one apical bristle beneath, otherwise unarmed, intermediate 

 tibiae with one externo-median, two subapical and three apical bristles, hind tibiae with 

 seven bristles, two on the outer, two on the hinder, and one on the inner surface, and 

 two at the apex beneath. Wings dusky, especially in the apical half, veins dark, except 

 at the base, tegulae slightly tinged with yellow. 



Hab. Oahu, one female, Kawailoa gulch, April 1893. 



(10) Coenosia /oiigipcs, sp. nov. 



?. Long. Corp. 8 mm. ; al. 7^ mm. Front one-fourth of the width of the head, 

 reddish-brown, the orbits, vertical triangle and face covered w^ith light yellowish-grey 

 tomentum, palpi yellow, antennae with the first two and the base of the third joints 

 yellow, rest of the third joint dark brown, arista very long, dark brown, and subplumose 

 on its basal third. Thorax with only one prominent presutural dorso-central bristle, 

 dorsum shining, cinereous, with three dark brown stripes before the suture, scutellum 

 concolorous, pleurae much lighter, halteres light yellow. Abdomen shining blackish, 

 first segment with a large subquadrate very pale yellow spot on each side at the base, 

 extending over the side to the venter and behind on to the lateral anterior portion of 

 the second segment, second to fourth segments each with a narrow cinereous band on 

 the anterior margin, on the second and third this band is slightly emarginate in the 

 middle, all the segments very narrowly edged behind with yellowish-white ; strong 

 lateral bristles are present on all the segments, first two segments with fine hind 

 marginal, third and fourth each with two strong dorsal and several hind marginal 

 bristles. Legs long and slender, fore coxae and all the femora yellow, of the latter the 



