1965] 
Werner — Ischyropalpus 
199 
1 §, San Esteban, nr. Puerto Cabello, Venezuela, 1-6 Dec. 1939, 
P. J. Anduze (C. N. H. M.). 1 d\ Simla, N. TRINIDAD, W. I., 
1-9 May 1963; 2$, 24-30 Apr. 1963; all M. Emsley, light trap 
(Werner) . 
The Eryngii — Group 
A small number of South American species forms a group that is 
quite aberrant in the genus. The form of the last segment of the 
maxillary palpi and of the prothorax are entirely different from those 
of the typical members. The last segment of the maxillary palpi is 
narrowly securiform rather than triangular. The prothorax is not 
at all constricted laterally before the basal impressed line, being more 
like that of Anthicus, s. str., but unusually enlarged in the cf of at 
least one species. 
The members of the group are assigned to Ischyropalpus on the 
basis of the form of the mesosternum, the presence of a zone of 
small spines around the basal portion of the tibial spurs (seen only 
in puteifer ), and on the form of the tegmen and general features of 
the internal sac of the <$ aedeagus in eryngii and puteifer, the only 
species known from males. The paired plates of the middle of the 
sac are absent. And the apodeme of the penis is extremely long. 
The group is therefore very disinct within the genus. Whether 
it is specialized or primitive is difficult to say. But it appears to be 
much more closely related to normal species of Ischyropalpus than 
to any other group, and is most conveniently treated as part of this 
genus. 
Key to Species of Eryngii — Group 
1. Pubescence in basal half of elytra cinereous, darker, almost brown, 
in apical half (as seen in side view with light from front). 
Dark brown to black with bases of femora and antennae 
slightly paler, occasionally paler with the region of the post- 
basal transverse impression of the elytra rufescent. Setae 
distinctly oblique between and behind the omoplates of the 
elytra. Uruguay eryngii 
Elytral pubescence of uniform color, not distinctly oblique in 
omoplate region 2. 
Ij 2. Elytra dull luteous, brown across base, in a postmedian crescent 
and in a narrow strip connecting base and crescent, near and 
parallel to suture. Elytral pubescence fine and moderately 
dense. Punctures of pronotum slightly confluent longitudinally. 
Est. Minas Gerais, Brazil decor atus 
Elytra pale to dark but without dark markings 3. 
