THE CANADIAN ENTOMOLOGIST. 37 



much larger and more irregular black blotches on the elytra, about four 



or five on each, arranged without semblance of order. 



ZoPHERiNus, n. gen. 

 This genus is represented before me by the two following species, of 



which the first may be regarded as the type : 



Elongate, convex, dull in lustre, the tubercles of the elytra feebly shining 

 black, the side margins of the pronotum and elytra finely veined with 

 yellowish-white in about a fifth of the total width : prothorax slightly 

 elongate, somewhat narrower than the elytra, narrowly rounded at the 

 sides, constricted at base, the surface uneven, sparsely punctate, and 

 with large, very flat tubercles toward the sides ; a quadrilateral of 

 four median indentations usually distinct ; elytra nearly twice as long 

 as wide, with rows of large flattened tubercles, the interspaces coarsely 

 rugose ; under surface black throughout ; posterior ridge of the fifth 

 ventral with a large and parallel-sided median spur projecting anteriorly; 

 the excavation with a tubercle at each side. Length 17.0-20.0 mm.; 

 width 6.0-7.5 I'l^'^''- Mexico (Amecameca) lirubaius, n. sp. 



Elongate, very convex, nearly as in limbattis, but with a much more 

 shining surface, the elytra less elongate, much wider than the prothorax, 

 wholly black and with large irregular transverse tubercular folds, 

 scarcely arranged in definite lines; prothorax black throughout, as long 

 as wide, very convex, the surface uneven, with four large median 

 depressions forming a square, strongly tuberculose toward the sides, 

 the tubercles posteriorly abruptly elevated, the punctures sparse ; fifth 

 ventral as in limbatiis. Length 19.0 mm.; width 7.0 mm. Mexico 

 (Amecameca) Icevicollis, Sol. 



The specimen doubtfully referred to Icevicollis has the surface of the 

 pronotum rather uneven, and the posterior ridge of the fifth ventral could 

 scarcely be described as " trilobed" ; it is broadly, feebly sinuate, with 

 a long abrupt parallel-sided spur projecting anteriorly from the bottom of 

 the sinus. Venosiis, of Champion, is peculiar in coloration, having the 

 white indument covering the entire surface, excepting certain black macu- 

 lation, as in the true Z(9///^r//.f ; limbatiis is undoubtedly a very different 

 species, which appears to have been overlooked. Specimens in this 

 genus, as well as the other Zopherini, should be' thoroughly soaked for at 

 least a day in benzine before studying, as the exuded grease otherwise 

 completely conceals their ornamentation. 



