320 HETEROMERA. 
the base, ovate, widest in the middle, the humeri a little prominent in front, slightly flattened on the disc, 
rather deeply striate, the strie with fine distantly placed oblong impressions, the interstices almost flat 
and very minutely and sparingly punctured ; legs reddish-brown; beneath, including the flanks of the 
prothorax, very sparingly and finely punctured ; prosternum a little declivous, subacuminately produced ; 
mesosternum narrow, rather deeply excavate, the sides rounded off in front.’ 
Length 53 millim.; breadth 23 millim. (¢.) 
Hab. Panama, Pefia Blanca 3000 feet (Champion). 
One example. I can suggest no near ally to this pretty little distinct species, though 
it somewhat resembles H. suavis; from this latter it is readily distinguished by its 
‘shorter head, larger eyes, less convex form (more flattened on the disc), longer and 
more strongly margined thorax, deep basal fovee, flatter elytral interstices, &c. 
14. Helops sumptuosus. (Tab. XIII. fig. 27, 3.) 
Diastizus sumptuosus, Allard, Rév. Hélopides, L’Abeille, xiv. p. 57'; Mittheil. der schweiz. ent. 
Ges. v. pp. 44 and 184.7, | 
Hab. Mexico (Bruck 12), Puebla (Sallé). 
15. Helops punctiventris. 
Oblong ovate, very convex, blackish-bronze, the elytra lighter in tint, rather dull. Head rather long, coarsely 
and moderately closely punctured, the epistoma more closely punctured, greatly developed, shallowly 
emarginate in front, and limited behind by a deep transverse groove, the intraocular space a little flattened, 
the eyes narrow; antenne (female) short, stout, scarcely passing the base of the prothorax, scarcely 
widening outwardly, piceous ; prothorax broader than long, strongly convex, scarcely perceptibly margined, 
the sides moderately rounded, narrowing a little more in front than behind and almost imperceptibly 
sinuate before the base, the apex rather deeply emarginate (nearly straight if viewed from above), the 
anterior angles deflexed and a little prominent though obtuse, the base truncate, the basal fove quite 
obsolete, the hind angles obtuse, the surface without impressions and coarsely and closely punctured, the 
punctures a little more scattered on the posterior half of the disc; scutellum very broad, transverse ; 
elytra moderately long, convex, widest about the middle, a little wider than the prothorax at the base, the 
base nearly straight, the humeri rather obtuse, with rows of rather coarse, somewhat distantly placed, 
elongate impressions, the interstices flat, shallowly and sparingly punctured on the disc and indistinctly so 
at the sides and apex; beneath more shining, coarsely and sparingly punctured, the ventral surface also 
strongly longitudinally wrinkled, the flanks of the prothorax very coarsely and closely punctured ; pro- 
sternum declivous, the apex slightly transversely raised ; legs short, stout, very coarsely and closely 
punctured. 
Length 9 millim.; breadth 4 millim. (@.) 
Hab. Muxico, Guanajuato (Sallé). 
Two examples, both apparently females. This species is not very nearly allied to 
any other recorded here; it somewhat resembles certain Old-World forms, e.g. the 
Algerian H. heteromorphus, Luc. (placed by Allard in his genus Diastixus), &c. 
H. punctiventris may be known by its longitudinally convex, very obsoletely margined 
and coarsely and closely punctured thorax, convex elytra, coarsely punctured under 
surface and legs (the femora more coarsely punctured than the tibize), short, stout 
antenne and legs, &c. 
