HETEROMERA. — 557. 
Helops pueblensis (p. 317). 
To the Mexican locality given, add:—Omilteme and Xucumanatlan in Guerrero, 
7000 to 8000 feet (H. H. Smith). 
Six examples, differing from the type (?) in having the punctures of the elytral 
strie coarser, deeper, and a little more scattered. The male has the three basal joints 
of the anterior tarsi broadly dilated, and the ventral segments 1-3 broadly flattened, 
densely punctured, and pubescent along the middle. 
11 (a). Helops enitescens. (Tab. XXIII. fig. 13.) 
2. Obovate, strongly convex, dark bronze, very shining, glabrous. Head thickly, finely punctate, the vertex 
smoother ; antenne ferruginous, extending nearly to the middle of the elytra; prothorax strongly longi- 
tudinally convex, short, finely margined at the sides, the apex (viewed from above) truncate, the base 
subtruncate, very feebly sinuate on either side, finely margined, and with rather deep foves, the sides 
rounded and moderately converging anteriorly, sinuate behind, the anterior angles strongly declivous, 
rounded, the hind angles obtusely rectangular, the surface very finely, shallowly, and somewhat closely 
punctured, the middle of the disc smooth and with a smooth central line, the lateral portions depressed 
about the middle; scutellum very broad, short ; elytra connate, depressed along the suture behind, short, 
very convex, a little rounded at the sides, broadly subtruncate and slightly wider than the adjacent part 
of the prothorax at the base, finely striate, the striz becoming deeper towards the base and with series of 
fine oblong punctures, the scutellar strie very deep, the interstices flat throughout, almost smooth, the 
humeri rather prominent; beneath piceous, almost smooth, the véntral segments 1-3 somewhat closely 
punctured in the middle and longitudinally wrinkled ; prosternum rather broad, declivous behind ; meta- 
sternum very short. 
Length 74, breadth 4 millim. 
' Hab. Guaremata, Tepan (Conradt). os 
One specimen, from the Los Altos region. This species is allied to the North- 
American H. @reus, Germ., but has a much smoother head and thorax, longer 
antenne, &c.; it should be placed near H. suavis. H. enitescens has somewhat the 
facies of Nautes nitidissimus. 
16. Helops rastratus. 
@. Elongate, convex, narrow, slightly shining, piceous, the head in front, the oral organs, antenne, and legs 
ferruginous. Head large and broad, very densely, somewhat coarsely punctate, the punctures on the 
vertex longitudinally confluent ; last joint of the maxillary palpi subtriangular; antenne robust, with 
the outer joints slightly compressed, short, scarcely reaching beyond the base of the prothorax ; prothorax 
longitudinally convex, about one-fourth broader than long, equal in width at the base and apex, widest 
at the middle, the sides moderately rounded, the base truncate, the anterior angles rounded, the hind 
angles exceedingly obtuse, the marginal carina not visible from above, the surface punctured like that of 
the vertex, the punctures longitudinally confluent and forming strigw ; elytra oblong-oval, a little wider 
than, and about three times as long as, the prothorax, rounded at the sides in front, with rows of oblong, 
partly confluent, moderately coarse punctures placed in almost obsolete striz, these punctures becoming 
finer and shallower towards the sides and apex, the interstices thickly, finely punctate, flat, the third, 
fifth, and seventh feebly raised at the apex, the humeri completely effaced ; beneath shining, ferruginous 
or obscure ferruginous, sparsely pubescent, closely, coarsely punctate, the flanks of the prothorax very 
densely punctured, the punctures separate one from another; prosternum declivous behind; legs stout, 
coarsely punctured ; body apterous. 
Length 10-102, breadth 33 millim. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1893. 4CC 
