DolicJiojwdidx of St. Vhicent (West Indies). 341 



ascertain that this structure ideally belonged to a male instead of a 

 female. The females of the species, however, do not have such 

 extended ovipositors ; so the resemblance is rather to what one 

 might suppose the female to be than to the female itself. Thi3 

 hypopygium is black, minutely yellow at tip. The wings of this 

 species resemble those of the first, but are a little more rounded. 

 Length 1 mm. 



Six males, three females. May. 500 feet. 



Gnamptopsilopus. 

 Aldrich, Kans. Univ. Quart., 1893. 



1. Gnamptopsiloinis hiculor. 



Loew, Neue Beitr., viii., 96 ; Monogr., ii., 280 



(Ptiilopus). 



A single female. May. 



Gnamptopsilopus flavidus, n. sp. (PI, XII., fig. 109, wing.) 



Slender, yellow, a broad stripe on the thorax, all the scutellum, 

 and the hind margins of the abdominal segments bright-green. 

 Cilia of tegulae yellow. 



$ . Face bright-green with thin white dust. Palpi and 

 proboscis yellow. Front bright-green. Antenua3 yellow, very 

 small, arista dorsal. Thorax yellow, the scutellum violet, a green 

 stripe upon the dorsum of the thorax is as wide as the scutellum 

 behind and tapers in front to a rounded point at the margin. 

 Metanotum yellow. Scutellum with only one pair of large bristles, 

 the outer pair being very small. Abdomen yellow, the first segment 

 above with a very narrow green border behind ; the following 

 three segments almost half green ; the fifth a little more than half, 

 and the sixth entirely, green. Venter wholly yellow ; near the 

 hind margin of each segment ai-e placed several large bristles. 

 Hypopygium embedded, yellow ; only two small yellow, hairy, 

 palpus-like organs are visible. Feet wholly yellow, the tarsi only 

 moderately infuscated. Fore coxae on the front side with a single 

 longitudinal row of minute black hairs, and about three bristles at 

 the end. Front femora near the base with six short thorn-like 

 bristles. Front tarsi nearly three times the length of the tibiae. 

 Middle tibiae and metatarsi with two rows of close short cilia, one 

 on the front and one on the upper side ; as these cilia project in 

 nearly the same direction, the effect is like a single somewhat 

 tangled row. Hind tarsi as long as the tibia3. All the legs are 



