372 HETEROMERA. 
Six specimens. This insect, though closely allied to S. languidum, is sufficiently 
distinct to be separated therefrom. 
57. Strongylium brevipes. (Tab. XVI. fig. 11, ¢.) 
Upper surface as in S. oculatum; the eyes large and approximate in both sexes; the antenne much shorter 
and stouter, in the female the penultimate joints as broad as long; the prothorax with the hind angles 
subrectangular and usually less acute than in S. ocwlatwm; the legs (especially the tarsi) shorter in both 
sexes, the first joint of the posterior tarsi comparatively much shorter ; the ventral surface very much 
more coarsely punctured. 
Length 7-8 millim. ; breadth 23-23 millim. (¢ @-) 
Hab. Nicaracva, Chontales (Belt); Panama, Volcan de Chiriqui (Champion). 
Fiveexamples. Until the corresponding sexes are compared this insect, at first sight, 
resembles 8. oculatum so closely as to be easily mistaken for the female of that species. 
The short tarsi and antenne and the very coarsely punctured ventral surface (resembling 
S. armatum) are the chief characters of S. brevipes. Two examples differ from the 
others in having the under surface and the thorax cyaneous or greenish-eneous, and 
the elytra suffused with reddish-brown. S. brevipes is separated from S. gregarium by 
the large approximate eyes, the flatter elytral interstices, and the much smoother 
ventral surface. 
A Chontales specimen is figured. 
tt Eyes much smaller ; upper surface rather more depressed ; head very rugosely 
punctured ; the basal half of the femora testaceous. 
58. Strongylium angustulum. 
Strongylium angustulum, Mékl. Monogr. p. 206; Act. Soc. Fenn. viii. part 1, p. 3147. 
Hab. Panama, Caldera in Chiriqui 1200 feet (Champion).—Cotomsia }. 
Three examples of a Strongylium collected by myself in Chiriqui agree very nearly 
with Maklin’s description of S. angustulum. From S. languidum and its allies these 
specimens are separated by the more coarsely and more rugosely punctured head and 
thorax, the more widely separated eyes, the femora testaceous in their basal half, the 
under surface duller and in great part reddish-brown, the ventral surface more finely 
and sparingly punctured, and the elytra with a more translucent brownish tinge, and. 
the suture narrowly suffused with fusco-violaceous. In the male the fifth ventral 
segment is largely depressed in the middle behind. Maklin gives the length as 9 millim. ; 
our examples measure 73-72 millim. 
The allied S. punctatissimum, M&akl., from Brazil, is much more coarsely punctured 
beneath, though very similar above. 
