AMERICAN COLEOPTERA. 329 



Iiulopendently of the ohanicters noted in a prcec(lin2; short review 

 (Trans. 1868, p. 12C) others, probably more important may be found 

 to distinguish cur species. 



Penultimate joint of maxillary palpi longer than the last joint. 



Base of elytra obliquely prolonged ; thorax much longer than wide, himl 



angles rectangular, base truncate; body glabrous Tellkampfi. 



Penultimate joint equal to lastor even slightly shorter. 



Elytra shining not pubescent; thorax longer than wide. 



Hind angles of thorax strictly rectangular, base squarely truncate. 

 Ely tra elongate oval, feebly convex, striae obsolete. Form 



slender tenuis. 



Hind angles acute, slightly prominent, base distinctly prolonged at 

 middle. 



Elytra broadly oval, more convex, striae moderately deep and punc- 

 tured. Form robust Menetriesi. 



Elytra sub-opaque, distinctly pubescent; thorax as wide or wider than 

 long. Elytral base never obliquely prolonged. 

 Sides of thorax gradually narrowing to base, scarcely sinuate, hind an- 

 gles rectangular or nearly so but never acute and prominent. 



Thorax at base as wide as long eremita. 



Thorax at base narrower than long; at widest portion not wider 



than long - pusio. 



Sides of thorax sinuately narrowing to base, hind angles acute promi- 

 nent outwardly. Elytra very distinctly pubescent.. ..pubescens. 



SUPHIS, Aube'. 

 S. lineatus, n. sp. — Elongate oval, more obtuse in front; color dark yellowish 

 testaceous, shining, each elytron with four black vittse. Head, yellowish 

 smooth impunctured, with darker space at occiput. Thorax more than twice 

 ;is broad at base as long, yellowish with darker discal space and with a sinuous 

 row of moderate punctures in front of basal margin behind which are smaller 

 ones sparsely placed. Elytra convex gradually narrowed to apex, yellowish^ 

 with seven stripes on the elytra conjointly, as follows; a common sutural stripe 

 extending from apex to base, a second extending from the base becoming 

 slightly arcuate near its end joining the sutural a short distance from the ajiex, 

 a third extending from base two-thirds the length of the elytra, a fourth near 

 the margin starting at the first third and nearly attaining the apex, and us- 

 ually also a small linear spot in the humeral region ; surface coarsely but 6[)arse- 

 ly punctured, punctures irregularly arranged, and with an indistinct row of 

 coarser punctures near the outer edge of the second black stripe and i)arallel 

 with but somewhat distant from the basal margin. Body beneath piceo-testa- 

 ceous, shining, penultimate and preceding segment of abdomen with a trau- 

 verse line of coarse punctures. The sternal plate coarsely punctured especially 

 in front. Length .12 inch ; 3 mm. 



Eather more elongate than hicoior and transversely more convex. 

 Easily known by its coloration. 



Specimens were sent me from Cape San Lucas, Lower California, 

 and were collected by Mr. Wm. M. Gabb. 



