268 HETEROMERA. 
have the fifth elytral interstice (very rarely the first also) produced into an angular or 
rounded prominence at the apex, this character in one species (H. zunilensis) being also 
present in the male. The sexual organs of both sexes are strongly developed, and very 
easily seen in this genus; they are formed very much as in Saziches (anté, p. 262) : in the 
male (cf. Tab. XI. fig. 22 c) the cedeagus is still longer and broader, horizontal or recurved 
upwards towards the apex, and the apex itself rather broadly truncate or shovel-shaped ; 
in the female the flattened vertical plates, forming what is doubtless an ovipositor, are 
still longer and broader. This structure scarcely varies in the fifteen species before 
me, at least one sex of each of which I have examined. The different species are 
of the same habits as the preceding genera of this group, but are usually found in 
more open places in the forest. 
The Central-American species may be identified by the following table, which is 
chiefly based upon the sculpture, shape, &c. of the elytra :— 
Interstices more or less convex. 
Strie broad, coarsely crenate-punctate ; the interstices broad, moderately 
convex, finely punctured, usually alternately green and cupreous, but 
little shining se ee se 8 ee ee he he 6resplendens. 
Striz narrower and more finely punctured. 
Elytra comparatively long, often more or less gibbous. 
Almost unicolorous, rather dull bronzy-cupreous ; the fifth inter- 
stice (? elongatus) not produced at the apex in the female. . elongatus, 
hondurensis. 
Almost unicolorous, duller darker bronze; the fifth interstice pro- 
duced into a strong tooth at the apex in the female . . . bdicaudatus, 
retrodentatus. 
The interstices alternately metallic green and cupreous; the fifth 
not produced. 
Very shining, long, strongly laterally compressed, the inter- 
stices feebly convex. . . . + + + © compressus. 
Duller, shorter, less compressed laterally, the interstices 
more convex; the prothorax much smoother and 
darker in tint . - + « « « Jineatus. 
Almost black, broad, somewhat depressed on : the disc soe 6 . niger. 
Greenish-bronze, moderately long, strongly laterally compressed ; 
the fifth interstice produced into a short rounded prominence 
at the apex in both sexes . . . - zunilensis. 
Brownish-bronze, narrow and subparallel, strongly laterally 0 com- 
pressed ; the fifth interstice not produced. . . . . . angustatus. 
Elytra broader and shorter, globose-ovate. 
Bright bronze, the prothorax greenish ; the sutural and seventh 
interstices slightly raised posteriorly and confluent at the 
apex and together a little produced at the sutural angle . . chiriquensis. 
