1 1 8 
Psyche 
[June 
notum a complete transverse band at least nearly half as long as the 
metanotum; propodeum relatively short and strongly convex, with 
the median line impressed basally, the posterior slope with or without 
transverse rugae. Middle and hind tibiae with sparse but fairly 
strong spines above ; front tibiae not at all spined above ; female with 
a strong tarsal comb, the spines very long and slender, the apical 
basitarsal spine longer than the second segment; apical tarsal seg- 
ments at least weakly spined beneath in the females; claws slender, 
dentate except inner claws of front tarsi of males strongly curved, 
somewhat bifid, this tarsal segment weakly lobed on the inner margin; 
pulvillar pad very small, giving rise to 2-6 minute setae. Wing 
venation essentially as in Evagetes (see Evans, 1950, Trans. Amer. 
Ent. Soc., 75: 162, Figs. 12, 13); marginal cell 1.6-2. 1 times its 
own length from the wing tip; second and third submarginal cells 
small, both narrowed above. Male subgenital plate simple, its sides 
tapering to a broadly rounded or subtruncate apex; male genitalia 
with the basal hooklets single, the aedoeagus simple, bearing a few 
minute apical setae; parameres fairly broad, strongly setose (Figs. 1, 
2 ). 
Key to species 
Females 
1. Propodeum without transverse rugae; inner orbits more strongly 
convergent at the top, upper interocular distance .84-.90 times 
lower interocular (Chile, Patagonia) .... 3. jaffueli (Herbst) 
Propodeum with fairly strong transverse rugae; upper inter- 
ocular distance .93-1.00 times lower interocular 2 
2. Transverse rugae reaching the extreme side margins of the 
propodeum; pubescence of head and thorax wholly dark; scape, 
head, and front coxae with rather strong dark setae; length 
12 mm (Peru) 2. porteri n. sp. 
Transverse rugae stopping well short of side margins of pro- 
podeum; pubescence silvery at least on the clypeus, parts of 
the front, coxae, thoracic pleura, and propodeum, often ex- 
tensively silvery; front coxae without dark setae, scape with 
at most a few setae; length 5. 7-9.0 mm (northern Argentina, 
Paraguay, southern Brazil) 1. bergi (Holmberg) 
Males 
Abdomen more or less fuscous beyond the fourth segment; clypeus 
and scape with only a few setae; inner orbits divergent above, 
upper interocular distance 1. 13- 1.20 times lower interocular; 
