1985] 
Kimsey — Neochrysis genera 
285 
Female. Body length 6-7 mm. Similar to male except least inter- 
ocular distance 1.2 times eye width, F-I twice as long as wide, F-II 
1.6 times, F-III and V as long as wide, and body green with purplish 
markings. 
Holotype male: ARGENTINA: La Rioja, C. S. Reed (san Fran- 
cisco). Paratypes, two males, three females: ARGENTINA: La 
Rioja, E. Giacomelli (one female); Icana, E. R. Wagner (one male, 
one female); Santiago del Estero, Rio Salado, Icana (one female); 
Tucuman, Leales los Gomez, 28 March 1948 (one female). 
Discussion: Most closely resembling ancilla, sur can be distin- 
guished by the narrower scapal basin in the male, narrower suban- 
tennal distance and malar space, very deep pit row with very large 
deep pits, a large prepit swelling, and the lateral margin of T-III 
concave. This species can be distinguished from other species of 
Pleurochrysis by the lack of a pronotal, metanotal or medial propo- 
deal tooth, no transverse facial carina and no transparent or whitish 
edge or spot on T-III. 
Pleurochrysis uruguayensis Kimsey, new species 
(Fig. 3) 
Holotype male. Body length 5 mm. Scapal basin densely clothed 
with silver setae; brow without transverse carina; malar space 0.5 
MOD long; least interocular distance 0.7 times eye width; suban- 
tennal distance 0.6 MOD long; F-I 2.3 times as long as wide; F-II 
slightly longer than wide; F-III as long as wide; F-V 0.8 times width; 
pronotum with small lateral tooth (fig. 3) and no lateral carina; 
metanotum pointed and strongly projecting medially; R1 as long as 
stigma; tarsi yellowish; S-II spots round and slightly less far apart 
than wide; T-II and III with vague, impunctate medial stripe; T-III 
pit row slightly sunken, no prepit row swelling, pits large and deep. 
Body bluish green, flagellum blackish. 
Female. Body length 5.0-5. 5 mm. Same as male except scapal 
basin with wider polished medial stripe, about one-fifth area, and 
T-I with fine apical ridges. 
Holotype male: URUGUAY: Dept. Rio Negro, 15 km s Pay- 
sandu, 27 December 1962 to 6 January 1963, R. G. Van Gelder 
(new york). Paratypes, one male and three females: same data as 
type. 
Discussion. P. uruguayensis is a small species with a well- 
developed pronotal tooth, no transverse facial carina, an elevated 
