46 Journal New York Entomological Society. [Vol. xiv. 



brown lateral margins. Metathorax a little longer than wide, sides diverging, pos- 

 terior angle rounded ; posterior margin with three long pustulated hairs and one small 

 hair at the posterior angle. Legs large, slender, dark brown markings on the margin. 



Abdomen elongate with two or three long hairs in posterior angle of each seg- 

 ment; segment 4 widest, segment 5 slightly narrower than 4, and segments 7 to 9 

 narrowing more rapidly ; segment 9 deeply angularly emarginated, the points acute, 

 and bearing many fine curved hairs on the inner margin ; narrow marginal dark 

 brown bands and two quadrangular lateral blotches on each segment, each blotch with 

 a clear stigmatal spot in center ; the blotches distinctly separated from each other and 

 from the lateral submarginal uncolored space. 



Male. — Body, length 1.7 mm., width .37 mm., head, length .6 mm., width a 

 little over .3 mm. General color very much lighter than that in the female; first an- 

 tennal segment longer than second, third, fourth and fifth together ; abdomen with 

 parallel sides ; legs remarkably large. 

 Lepeurus argentinus, new species (PI. ii, Fig. 2). 



Females from Plcgadis guarana (Argentina). 



Description of Female. — Body, length 2.5 mm., width .33 mm. ; very elongate 

 and slender; parallel-sided ; color, very pale with margins of head between antennae 

 and sutures golden yellow .; thorax and abdomen with pale yellow markings. 



Head, length .5 mm., width .36 mm. ; elongate conical, with clypeus expanded ; 

 one lateral hair on expanded clypeal portion, one long hair in front of the suture, one 

 at the suture, and two rather weak hairs between antenna and suture ; trabecular 

 small, transparent ; temporal margins slightly convex, with four or more short spine- 

 like hairs ; occipital margin nearly straight with two hairs in posterior angle ; eyes 

 conspicuous with black pigment ; antenna; with second segment longest, fifth next to 

 longest, segment 4 shortest, segments I, 3, and 4 are subequal ; clypeal signature 

 shield shaped, extending to front margin of head, pale brown, with distinct suture 

 extending from posterior angle along the median line not quite to the anterior margin 

 of signature ; antennal bands golden brown, distinct ; temporal margin pale yellow ; 

 occipital margin uncolored. 



Prothorax almost square ; posterior margin nearly straight, with three spines in 

 posterior angles ; lateral margins pale yellow. Metathorax quadrangular, longer 

 than broad, slightly narrowing anteriorly ; posterior margin straight, with five long 

 and one short hairs in each posterior angle ; lateral margin pale yellow. Legs large, 

 pale yellowish markings on the margin. 



Abdomen elongate ; first segment slightly narrower than thorax at articulation, 

 segments gradually widening to the fifth and narrowing from there to the ninth ; seg- 

 ments 1 to 8 with four hairs on dorsal surface near posterior margin ; segments I to 7 

 with one weak hair in posterior angles, segments 8 and 9 with two long and one short 

 hairs ; segment 9 with rounding emargination on posterior margin ; segments I to 9 

 with very pale narrow marginal bands, and two quadrangular pale yellow blotches 

 separated from each other and from lateral band by uncolored space. 

 Goniocotes abnormis, new species (PI. ii, Fig. 3). 



Males and females from Ava chloroptera (Argentina). 



Description of Female. — Body, length 1.75 mm., width .55 mm.; pale with 



