312 Professor Aldricli on the 



green, sometimes coppery, more so along the front margin. Small 

 humeral bristles (Mik) numerous. Yiewed from above, there is a 

 silvery pollinose spot behind the humerus, and another behind the 

 root of the wing. Scutellum coppery. Pleurae mixed light and 

 dark green, white-dusted. Tegulae yellow, their cilia black. 

 Abdomen coppery, on the sides more green, and ventrally some- 

 what white-dusted. Hypopygium large and long, yet scarcely 

 pedunculated ; the lamellae proper are very small, yellow ; the 

 outer basal portion of each gives rise to a stout claw, twice as long 

 as the lamella itself, black except a little at base, and curving 

 upward toward the venter. A row of black bristles runs along the 

 outer side of the claw two-thirds of the distance to the tip. Coxae, 

 legs, and feet wholly yellow, the last gradually infuscated toward 

 the end. The fore coxae have three large bristles, numerous black 

 bairs, and a few smaller bristles. Middle coxae with hair and 

 bristles. Hind coxae with the usual bristle. Fore tarsi widened 

 from near the tip of the first joint, the under surface destitute of 

 the customary black hair, therefore resembling a broad yellow sole. 

 All the joints beyond the first are shorter than usual. Hind meta- 

 tarsi shorter than following joint. Wings subhyaline, of slender 

 outline. Fourth vein converging with the third in its last section, 

 less so near the tip, ending distinctly before the apex. Posterior 

 cross-vein at right angles to the long axis of the wiug. 



5 . Face wider, less narrowed in the middle, without groove ; 

 lout little white pollinose, except on the prominent lower part, the 

 remainder more greenish or brownish. Palpi a little larger, each 

 with a minute bristle as well as fine hairs. The black spot over- 

 lying the transverse suture on each side of the thorax is very large, 

 rather more so than the male. In one immature specimen the 

 coppery colour is but little noticeable, leaving the abdomen and 

 scutellum almost pure green. 



Length '6-3^ mm,; of wing, 2| mm. 



Seven males and five females. 500-1500 altitude. 



Pelastoneurus. 

 Loew, Neue Beitr., viii., 1861. 



1. Pelastoneurus lineatus, n. sp. 



(t, . Front of moderate width, deep blue-green, shining. Face 

 narrow in the middle, wider above and below, the ground colour 

 brown, white pollinose. Palpi brownish-yellow, but little visible. 

 Antennae red, the first two joints short, the third large, oval, the 



