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Psyche 
[Vol. 92 
Key to the Genera Elevated from Neochrysis 
1 . Pronotum with sharp, protruding and nearly straight lateral Car- 
ina (fig. 7); male S-IV large and usually metallic, two-thirds or 
more as long as S-III (fig. 12); female S-III longer than II (fig. 
13); face with frontal carina extending up to and around midocellus 
Ipsiura Linsenmaier 
Pronotal carina absent or punctate and irregular (fig. 6), not 
protruding; male S-IV only exposed fringelike beyond S-III (fig. 
10), except in 4 species of Pleurochrysis ; female S-III variable in 
length; facial carina present or absent 2 
2. Head with elongate fovea along genal carina (fig. 2), metanotal 
lobe digitate and protruding (fig. 4), propodeum with medial 
tooth; female S-III longer than II (fig. 11).. .Exochrysis Bohart 
Head without genal fovea, metanotal lobe subtriangular, not 
protruding (fig. 5); propodeum without medial tooth, except 
Pleurochrysis alfkeni\ female S-III subequal in length to II 
(fig. 9) 3 
3. Hindfemur without basal pit; pronotal declivity with 2 deep 
submedial pits (fig. 3); T-III pit row pits large and deep and/or 
pit row depressed, often with prepit swelling (fig. 6) 
Pleurochrysis Bohart 
Hindfemur with small circular or linear anterobasal pit; pronotal 
declivity without 2 deep submedial pits (rarely 2 pits apparently 
present); T-III pit row absent or only indicated by slight lateral 
depression or small pits, no prepit swelling (fig. 8) 
Neochrysis Linsenmaier 
Exochrysis Bohart, N. Stat. 
Exochrysis Bohart 1966: 141. Type: Chrysis panamensis Cameron 1888:464. 
Monobasic and orig. desig. 
Discussion. The most distinctive features of Exochrysis species are 
the genal fovea, a long slender depression along the ventral side of 
the genal carina (fig. 2), and the shape of the lateral metanotal 
tooth, which is digitate and protrudes away from the propodeal 
tooth (fig. 4). In addition Exochrysis species have a distinctive 
basomedial tooth on the propodeum, which is only found in Exoch- 
rysis and one species of Pleurochrysis, alfkeni, and have a hindfem- 
oral pit. All Exochrysis have four apical teeth on T-III. The black 
spots on S-II are sexually dimorphic, tending to be much smaller 
and farther apart in females. 
