74 FAUNA HAWAIIENSIS 



(3) Asteia, sp. 



The third species belonging to this genus is represented by a single specimen 

 beaten from trees, at a height of 3000 ft. in the Waianae Mts., Oahu, in April 1892. It 

 differs from the other two species inhabiting these islands in having entirely black 

 antennae, blackish pleurae and reddish-yellow legs. The arista appears to be quite 

 bare. 



Fam. AGROMYZIDAE. 

 Agromyza Fallen. 



(i) Agroi7tyza, sp. 



Two specimens belonging to this genus were obtained by Mr Perkins. One was 

 beaten from trees, at a height of 3000 ft., in the Waianae Mts., Oahu, in April 1892, and 

 the other is from Kona, Hawaii, and was obtained at a height of 4000 ft. in September 

 of the same year. Both specimens agree in most respects with A. pictella Thoms., 

 described from California, except that the abdomen is entirely black. In the present 

 state of our knowledge of this genus I think it wiser to defer the description of this 

 species, rather than add another to the long list of those already named, which must 

 include a great many synonyms. 



Ophthalmomyia Williston. 



(i) Ophthalmomyia lacteipennis Loew. 



Lobioptera lacteipennis Loew., Dipt. Amer. Sept. Centur. vi. no. 97 (Berl. Ent. 



Zeitschr. ix. 1865, p. 185) — Cuba. 

 Ophthalmomyia lacteipennis Williston, Tr. Ent. Soc. Lond. 1896, p. 427, pi. xiv. 



f. 154. 



Hab. Hawaii, Kona, five males, 4000 ft., August and September 1892. The last 

 segment of the abdomen is furnished on each side with a row of regular, equidistant 

 bristles, which stand out at right angles to the margin ; hence, as the abdomen is 

 pointed they are directed backwards and present a rather remarkable appearance, which 

 does not hitherto appear to have been noticed. I am unable to say whether the 

 abdomen of the female is similarly furnished. 



Plate III. fig. 21, body of $ individual, seen from above. 



