362 HETEROMERA. 
subequal, 8 about as long as broad, 10 subtransverse, pluish-black ; prothorax strongly transverse, very 
broad, subquadrate, not very convex, the sides obsoletely margined (visibly so from above), nearly straight 
(though slightly sinuous) in their basal half, and narrowing immediately before the rounded anterior 
angles, the apex nearly straight, the base slightly sinuate, the basal fover very shallow, the surface very 
closely, somewhat coarsely, subequally punctured, a narrow very slightly impressed line, ending before 
and behind in a deeper groove, on the disc, and a space near the subrectangular hind angles, smoother ; 
scutellum broad, subtriangular, distinctly punctured, greenish-weneous, shining; elytra convex, moderately 
long, subparallel to beyond the middle, punctate-striate, the punctures coarse and subcrenate at the extreme 
base, moderately coarse at the sides, and fine and shallow on the disc, becoming still finer towards the apex, 
the interstices convex throughout, and minutely and sparingly punctured, the surface rather dull, red, each 
elytron with a broad obscure greenish-fuscous patch on the dise (occupying the second to the seventh inter- 
stices) extending from a little below the base nearly to the apex ; beneath more shining, cyaneous, sparingly 
pubescent, coarsely but rather sparingly punctured, the middle of the metasternum much more finely so ; 
legs short and stout, closely and somewhat coarsely (the femora and tibie equally so) punctured, cyaneous, 
the tarsi darker, the first joint of the posterior tarsi as long as the apical one ; the anterior tibie curved, 
and somewhat strongly sinuate within, in the male. 
Length 14 millim.; breadth 5 millim. (¢.-) 
Hab. Mexico, Tehuantepec (Sallé). 
One example. This species approaches S. opacipenne in some of its characters, 
especially in the shape of the head; but is readily separated, apart from colour 
differences, by the shorter and stouter legs, the shorter antenne, the differently shaped 
and much more closely punctured thorax, the convex and smoother elytral interstices, 
the punctures of the strie coarse at the base, &c. S. divittatwm also slightly resembles 
S. cruentatum and other similarly-coloured species, though easily distinguished by the 
above-mentioned characters. In the elytral maculation the present insect is somewhat 
similar to the Brazilian S. limbatum (Germ.), Makl. The single specimen is without 
abdomen, but from the structure of the anterior tibiz is no doubt a male. 
Elytra long, coarsely striate-punctate, the punctures often transverse and closely approxi- 
mate; eyes small; upper surface violaceous or cyaneous, the elytra banded with 
reddish-testaceous or testaceous. 
36. Strongylium aulicum. (Tab. XV. fig. 17, 2 .) 
Strongylium aulicum, Makl. Monogr. p. 255; Act. Soc. Fenn. viii. part 1, p. 363’. 
Strongylium flavicorne, Chevy. in litt. 
Hab. Mexico, Cordova, Yolos (Sallé!); Guaremana, Chacoj and San Juan in Vera 
Paz (Champion); Nicaracua, Chontales (Belt). 
This is one of a group of species numerously represented in Tropical South America, 
and recognizable byits elongate cylindrical form and bright cyaneous or violaceous surface, 
the elytra each with a broad testaceous band at the base and a rather narrower one 
beyond the middle, the bands connected along the lateral margin, but not reaching the 
suture. The antenne vary in colour from testaceous to piceous; rarely (one example 
from Chontales) the tibize are red. The thorax sometimes shows traces of a fine more 
