HELOPS. 319 
Three examples, a male from Mexico, and a pair from Guatemala. This insect will 
be known amongst its allies by the broad, short, rather strongly margined, and shallowly 
and sparingly punctured thorax, the sides of which are more or less rounded and the 
anterior angles not prominent; the long antenne ; the short convex elytra, &c. I can 
suggest no very near ally to H. swavis, though, like the preceding species, it approaches 
the North-American H. wreus, Germ., in some of its characters. The Mexican example 
has the head and the sides of the thorax rather more coarsely punctured, the thoracic 
margins shallowly grooved within, and the under surface smoother than in the Guate- 
malan exponents ; it agrees, however, perfectly in other respects. 
12. Helops cupripennis. 
Oblong ovate, convex, bright bronze, the elytra slightly cupreous in tint. Head very shallowly transversely 
impressed in front, rather coarsely, irregularly, and somewhat sparingly punctured, the epistoma slightly 
emarginate ; antenne (female) rather short, dark ferruginous; prothorax longitudinally convex, transverse, 
rather strongly margined, the sides a little rounded about the middle, slightly narrowed and sinuate 
behind, and more distinctly narrowed and sinuate in front, the anterior angles rounded but a little pro- 
minent, the apex arcuate emarginate (almost straight when viewed from above), the hind angles obtuse, 
the base almost straight, the basal foveze obsolete, the disc shallowly impressed before the base and with 
an ill-defined smooth central line, the surface moderately coarsely and somewhat closely punctured ; 
scutellum strongly transverse ; elytra distinctly wider than the prothorax at the base, moderately long, 
somewhat ovate, strongly margined, the humeri rounded but a little prominent in front, with rows of mode- 
rately coarse shallow elongate distantly placed impressions, the impressions much finer and shallower 
towards the apex, the interstices quite flat and very sparingly, shallowly, and finely punctured; legs 
rather short, the basal halves of the femora clothed with long hair beneath ; beneath, including the whole of 
the metasternum, coarsely but sparingly punctured, the flanks of the prothorax more closely so, the ventral 
surface more finely punctured in the middle and also strongly longitudinally wrinkled; prosternum 
declivous, rather convex; mesosternum feebly impressed. 
Length 8 millim.; breadth 4 millim. (@.) 
Hab. Mexico, Parada (Sal/é). 
One example. This insect also comes near H. wreus, Germ., but is separated from 
that species (and the allied forms noticed here) by the elytra not being striate but with 
rows of elongate impressions; the head and thorax smoother, &c. Compared with 
H. coxalis and H. suavis the thorax is relatively narrower, the elytral interstices flatter, 
the antennse shorter, &c. 
18. Helops panamensis. (Tab. XIII. fig. 26, ¢ .) 
Oblong ovate, moderately convex, bright golden-bronze. Head short, broad, rather deeply transversely impressed 
in front, closely and somewhat coarsely punctured, the punctures here and there confluent, the epistoma 
truncate in front; eyes large, rounded; antennz long, passing the middle of the elytra (in the male), 
widening a little outwardly, joints 9 and 10 subtriangular, the apical joint oblong ovate and longer than 
the tenth, ferruginous; prothorax broad, a little wider than long, strongly margined, the margins 
shallowly grooved within, widest before the middle, the sides rounded anteriorly, narrowed and strongly 
sinuate behind, and very slightly narrowing in front, the anterior angles deflexed, rounded, and not pro- 
minent, the apex very feebly emarginate (almost straight if viewed from above), the hind angles rectangular, 
the base feebly sinuate on each side and straight in the middle, the basal fovese long and deep, the surface 
somewhat closely and rather coarsely punctured ; elytra a little wider than the prothorax, subtruncate at 
