Diptera of 8t. Vincent ( West Indies). 429 



2. Agromyza xanthophora. (PI. XIV., fig. 157, wing.) 



? Agromyza xanthophora, Schiner, Reise der Novara, 

 Diptera, 29]. — S. America. 



$ . Front opaque black, lightly whitish dusted when seen from 

 the side ; above about one-third of the width of the head, 

 moderately narrowed below ; immediately above the root of the 

 antennae an oval yellow spot. Antennse wholly black, the arista bare. 

 Face black, lightly whitish dusted like the front. Cheeks narrow, 

 hairy behind, but apparently without a row of bristles along the 

 oral margin. Cheeks very narrow. Palpi black. Posterior orbits 

 very narrow through it. Mesonotum opaque black, with black 

 hair; the lateral margins, except a small spot on the humeri, the 

 hind margin laterally, and a large confluent, quadrilateral spot 

 behind, sulphur-yellow. Scutellum wholly yellow. Pleurae black 

 below ; on the upper part confluent with the yellow of the sides 

 of the mesonotum ; the yellow is broadest below the root of the 

 wings. Abdomen yellow ; third, fourth and fifth segments each 

 with a median black spot, partly confluent with each other and 

 becoming successively larger posteriorly. Ovipositor black, 

 cylindrical, gently tapering, about twice as long as broad, and about 

 as long as the fifth segment. Wings hyaline ; auxiliary vein 

 distinct, except at its tip, where it is so slender and so closely ap- 

 proximated to the first vein that it is scarcely to be distinguished ; 

 penultimate section of the fourth vein scarcely longer than the 

 posterior cross-vein and about half the length of the ultimata 

 section of the fifth vein. Length 4 mm. 



One specimen. Schiner^s ratlier brief description- 

 applies well to this specimen, except in the size, which is 

 given at 1-H lines. I believe, notwithstanding, the- 

 species are identical. 



3. Agromyza sorosis, n. sp. 



^ , 5 • Head, including the antcnuEe, yellow, a minute spot at 

 the ocelli and the upper part of the occiput black. Front about 

 one-third of the width of the head, a little broader on the upper 

 part. Cheeks moderately broad, with bristles along the oral margin. 

 Thorax light-yellow, with three broad, black stripes, separated by 

 linear intervals or wholly confluent ; the middle stripe begins at the 

 TRANS. ENT. SOC. LOND. 1896. — PART III. (sKPT.) 29 



