1968] 
Evans — Neotropical Pompilidae 
15 
Specimens examined. — 2 20 cfcf- Argentina: i cf, Tucu- 
man [type, Cornell Univ.] ; 2 17 cTcT, Horco Molle, near 
Tucuman, Jan.-April (C. C. Porter, L. Stange, H. & M. Townes) 
[Mus. Comp. Zool.; Inst. Miguel Lillo, Tucuman; and Coll. H. 
K. Townes], brazil: i cf, Barro Alto [type of brasiliensis, Mus. 
Comp. Zool.]. 
Variation. — The second female is slightly larger than the plesial- 
lotype (fore wing 14.5 mm) ; in this specimen the middle interocular 
distance is .52 X the head width, the upper interocular distance 1.03 
X the length of the third antennal segment. Otherwise there are 
no noteworthy differences from the plesiallotype. 
The males vary only slightly in size (fore wing 9-13 mm) but 
show considerable variation in the details of the color pattern. Most 
of the 17 males from Horco Molle resemble the type closely, but in 
several the second tergite is mostly blackish instead of ferruginous, and 
in several the major part of the first tergite is ferruginous rather than 
yellow. These darker males approach rather closely the type of 
brasiliensis , which has the abdominal dorsum mostly fuscous except 
for prominent transverse pale bands toward the apex of each tergite. 
This specimen also has some black on the coxae and wider dark bands 
on the propodeum. The genitalia of the types of argentinicus and 
brasiliensis are virtually identical. 
Chirodamus vitreus (Fox) new combination 
Salius (Priocnemls) vitreus Fox, 1897, p. 274 [Type: 9, brazil: Rio de 
Janeiro, November (? location of type)]. 
Calopompilus vitreus : Banks, 1946, p. 490 ($, Brit. Guiana, Surinam, 
Brazil) . 
Batozonus pentodon Arle, 1947, p. 425-426, figs. 17-22 [Type: $, brazil: 
Niteroi, Rio de Janeiro, 17 Aug. 1947 (R. Arle) (Arle Collection)]. 
New synonymy. 
Plesiotype. — $, brazil: Rio de Janeiro, 7 March 1966 (H. and M. 
Townes) [Coll. H. K. Townes]. 
Description of female plesiotype. — Length 20 mm; fore wing 17.5 
mm. Body black; legs black, fading to dark castaneous apically; an- 
tennae black, orange beyond segment seven above, beyond segment 
three below ; wings translucent, vitreous, tinged with yellowish-brown 
except lightly tinged with fuscous along outer margin. Pubescence 
fine, with weak bluish reflections, somewhat cinereous on the coxae 
and lower front; clypeus, front, vertex, thoracic dorsum, coxae, and 
front femora each with a few strong setae ; propodeum with numerous 
fine setae on the sides; abdomen with strong setae below, the apex 
