252 ; HETEROMERA. 
Colour black, or black with the elytra paler. 
Sides of the thorax moderately rounded. 
Upper surface opaque. 
Legs infuscate 2. 1 1 1 we we ew ee ew we we Cane scens. 
Legs testaceous . . 1 1 1 we eee ee ee we flavipes. 
Upper surface more shining; elytra lighter in colour than the 
thorax ; tibie entirely testaceous . . . . . . « « « © drunneipennis. 
Sides of the thorax more obliquely converging; elytra not lighter in 
colour than the thorax; legs infuscate . . . . . . . . . brevicornis. 
Colour more or less testaceous; the elytra bi- or trifasciate. 
Thorax entirely testaceous. 
Hlytra with the median and apical fasciz alone distinct. . . . . bicincta. 
Hlytra with well-marked median and apical fascie and a transverse 
basal patch; form less elongate. . . . . . . . . . . trisignata. 
Thorax testaceous at the base and apex, with a piceous band across the 
middle; elytra with three dark fascie, the fascie separated by 
large testaceous spots, two on each elytron. . . . .. . . quadriguttata. 
Colour testaceous ; the elytra with a median fascia only, which is inter- 
rupted at the suture . . 1. 6. 6 ew ee ee ee ee unifasciata, 
Colour testaceous. 
Size moderate; body rather broad; thorax moderately rounded at 
the sides See ee ke 2 + 6 6 «  adecolor. 
Size very small; body narrow; thorax narrowing almost from the base . angustata. 
1. Pentaria canescens. 
Moderately elongate, black, the labrum only a little lighter in colour ; the upper surface opaque, thickly clothed 
with fine sericeous ashy pubescence, the prothorax and elytra densely transversely strigose. Head 
moderately large; antenne rather short, thickening outwardly, joints 9 and 10 transverse, black, the 
three or four basal joints testaceous or flavo-testaceous ; palpi testaceous or fusco-testaceous, the apical 
joint infuscate or piceous; prothorax about one half broader than long, feebly bisinuate at the base, 
moderately rounded at the sides, the hind angles rectangular; beneath black, densely clothed with ashy 
pubescence, very closely and minutely punctured, the punctures on the metasternum more or less confluent 
and tending to form transverse strige ; legs piceous with the extreme base of the tibic testaceous, some- 
times a little lighter ; all the tibia with traces of oblique grooves on their outer face ; first joint of each 
of the tarsi about as long as the following two joints united; fifth ventral segment similar in both sexes; 
anterior tarsi moderately dilated in the male. 
Length 23-3 millim. (¢ ¢.) 
Hab. Mexico, Xucumanatlan, Amula, and Omilteme, all in Guerrero (H. H. Smith), 
Mexico city (Mohr). | 
One male and three female examples. The former has been quite recently sent me 
by Mr. Flohr, who states that the insect was beaten from the branches of an oak. The 
species is not closely allied to any of the North-American Pentariew. In fresh examples 
the pubescence is almost white in certain lights. The sixth ventral segment is not 
visible in the male, 
