320 MEMOIRS ON THE COLEOPTERA 



male, very shining, black, with strong deep blue, rarely greenish, 

 lustre above, the under surface and legs shining black, the sterna 

 with very moderate sparse pubescence; head strongly, densely punc- 

 tate, the vertex with a few coarse hairs; clypeus as long as wide, 

 subparallel, very obtuse and barely at all reflexed and feebly medially 

 sinuate at apex; prothorax large, slightly (cf) or much (9) shorter 

 than wide, trapezoidal, with the sides obtusely angulate medially, 

 the lateral bead strong; just within the bead there is a tomentose 

 line (cf), altogether wanting ( 9 ) ; punctures rather coarse, not dense, 

 becoming notably sparse medially, those toward the sides bearing 

 very short erect hairs as seen only by very oblique view; scutellum 

 with some scattered submedial punctures; elytra moderately 

 elongate, with moderate costae, the sutural elevations cariniform 

 posteriorly and obtusely denticulate at apex; punctures not large, 

 very obliquely lineiform, with one or two fine longitudinal incised 

 lines toward the suture; on the flanks they are transversely incised and 

 well separated; tomentose spots small and sparse, one slender and 

 transverse behind the middle usually more noticeable; pygidium 

 (cf ) with very widely spaced irregular oblique incised lines, feebly 

 umbonate below the middle and with a small, very irregular, trans- 

 versely tomentose spot at base sublaterally, or ( 9 ) feebly convex, 

 similarly lined but without tomentose areas; anterior tibiae distinctly 

 tridentate in both sexes. Length (3 cf, 7 9) 11.4-13.3 mm.; 

 width 6.1-7.8 mm. Texas. [Euphoria melancholica Horn nee G. & 



P.] nitens n. sp. 



7 Body oblong, rather stout, the elytra never more than feebly cuneiform, 

 rather shining, black, with viridi-aeneous lustre, sometimes becoming 

 rufo-piceous, the under surface polished black, with greenish to 

 cupreous lustre; pubescence of the vertex and pronotum rather short 

 but abundant, very coarse and conspicuous, that of the elytra 

 rather shorter, erect and sparse but very coarse; head clearly punc- 

 tured, the clypeus much more shallowly and rugulosely and with a 

 few very short coarse hairs, subparallel, shorter than wide, concave 

 along the sides, the broad obtuse apex very abruptly but only slightly 

 reflexed, feebly sinuate medially; prothorax formed nearly as in 

 nitens but with the punctures not so coarse and everywhere much 

 closer, the narrow impunctate median line well defined; just within 

 the lateral beading there is a line of tomentum, very variably de- 

 veloped but apparently almost equal in the sexes; scutellum with 

 scattered and rather strong punctures, principally behind the middle; 

 elytra rather flattened above, shorter than in nitens, only a little 

 longer than wide, with the costae rather narrow but strong and con- 

 spicuous as a rule, the punctures close-set, arcuate, generally inter- 

 lacing and with some longitudinal incised lines; on the flanks the 

 sculpture is in the form of irregularly confluent, transverse and mod- 

 erately close-set incised lines; tomentose spots small but numerous 

 throughout, generally transverse, with one subapical which is 

 transversely arcuate to semi-annular; pygidium with deep inter- 

 lacing incised lines and a subcentral umbo (d 71 ), or more feebly tumid 

 along the middle ( 9 ), having in both sexes a very irregular reniform 



