1985] 
Kimsey — Neochrysis genera 
281 
4. Metanotum with large medial projection 
imbed l la (Mocs&ry) 
Metanotum without medial projection 5 
5. Malar space longer than 1 MOD cavifrons (Brulle) 
Malar space less than or equal to 1 MOD in length 6 
6. Scapal basin with polished and impunctate medial stripe as 
wide or wider than lateral finely punctate area 
acuta (Brethes) 
Scapal basin without impunctate medial stripe or stripe much 
narrower than width of lateral finely punctate area 
uruguayensis Kimsey, new species 
7. Scapal basin with fine transverse cross-ridging 8 
Scapal basin without cross-ridging 9 
8. T-III lateral edge concave between lateral tooth and base, male 
flagellum yellow atacamae Kimsey, new species 
T-III lateral edge slightly to strongly convex, male flagellum 
brown chilicola (Mocs&ry) 
9. T-II lateral edge transparent, T-III basolateral margin transpar- 
ent or with large basolateral whitish, amber or transparent spot 
10 
T-II and III without lateral transparent, amber or whitish spot 
or edge 13 
10. T-III pit row obscured by prepit swelling, pits barely visible as 
small flattened ovals 11 
T-III pit row broad and well-developed, pits large and round or 
oval, not obscured by pre-pit swelling 12 
11. Malar space less than 1 MOD long, T-III narrow and tapering 
apically in dorsal view including rim, face without transverse 
frontal carina postica (Brulle) 
Malar space more than 1 MOD long, T-III broad and rim 
flared apically in dorsal view, face with traces of transverse 
frontal carina ypirangensis (Buysson) 
12. Face with strong carina enclosing mid ocellus, metanotum with 
large medial projection, T-III medial pits subequal to sublateral 
ones leucophris (Mocs&ry) 
Face without carina enclosing midocellus, metanotum without 
large medial projection, T-III medial pits much larger than sub- 
lateral ones charruana (Brethes) 
13. Subantennal distance at least 1.4-1. 5 MOD long 14 
Subantennal distance not more than 1 MOD long; S-II spots as 
