330 Professor Aldrich on the 



or five small pre-apical bristles ; tibiae yellow, the hind ones a little 

 darker ; tarsi yellow, fourth and fifth joints of the fore ones black, 

 the posterior ones gradually infuscated from the tip of the first 

 joint. On the front side of the fore tibia is a row of small but 

 distinct white hairs. Wings somewhat infuscated, of the usual 

 shape, fourth vein ending very slightly betfore the exact apex. 

 Length 1*1 mm.; of wing, 1 mm. 



Seven males. 500-1000 feet. 



10. Ghrysotiis inermis, n. sp. 



$ . Face of moderate width, parallel, blackish-green, but little 

 dusted ; palpi dark ; front shining green, slightly dusted ; cilia of in- 

 ferior orbit brownish-yellow ; antennae black, the third joint short, a 

 little hairy, with apical arista. Dorsum of thorax shining green, 

 thinly covered with yellow dust ; pleurae black, yellowish dusted ; 

 cilia of tegulae brown, halteres yellow. Abdomen rather dull coppery 

 colour, verging into blackish, the hairs brownish ; hypopygkim 

 concealed. Coxae yellow, the middle ones black nearly to the 

 tip, the fore and middle ones with yellow hairs; femora and 

 tibiae yellow ; the middle tibiae with an erect bristle below the 

 knee, the hind ones with two or three small bristles behind, other- 

 wise the tibiae are free from bristles except at apex ; tarsi yellow, 

 only a little infuscated at the extreme tip ; fore pulvilli ilarge, 

 middle ones only a little larger than the hind ones. Wings 

 yellowish, the fourth vein ending in the apex, posterior cross- 

 vein short, located before the middle. 



$ . Face green, white-dusted ; proboscis, cilia of inferior orbit 

 and those of the tegulae paler than in the male ; venter slightly 

 yellowish at base. 



Length 1*6-2 mm.; of wing, 1*5-1*8 mm. 



Seven males, numerous females. May and July. 

 500-2000 feet altitude. 



The females of tbis species so closely resemble those 

 of Diaphorus flavipes, that they can scarcely be 

 separated, I could find no distinct differences. 



11. Chrysotus apicalis, n. sp. 



^. Front shining green, wide ; face of same colour with a 

 little pollen, narrowed in the middle, owing to an area of enlarged 

 facets in the eye ; eyes somewhat emarginate at the level of the 

 antennae ; palpi yellow ; antennae black, the first joint bare, this 

 and the second of ordinary structure ; the third joint crescent 



