1853.] 863 



elytra, described as S. mbidus by Dr. Melsheimer, who, however, suspected 

 that they might be the male of S. viger. Both sexes vary in size, the dorsal 

 line is sometimes impressed in both, and the distinctness of the raised lines of 

 the elytra differs in each. 



S. PETROPHYA Knock, 1801. N. Beitr. 131. Guer. Sp. No. 4. RJiipieera 

 fulva Lap. 1834, Ann. Ent. France, 3, 326. Hh. proserpiiia Newman, 1838, 

 Ent. Mag. 5, 383. Male considerably smaller than the female, and with the 

 elytra slightly narrowing posteriorly instead of being widest behind the middle, 

 as in the female. Black, with an indistinct yellowish pubescence. Mandibles 

 black, antennae dark rufous, base black ; head and pronotum finely scabrous, the 

 width of the latter about double its length, sides convex, subangular behind the 

 middle, dorsal line impressed or wanting. Stutel circular, minutely scabrous. 

 Elytra but little wider than the prothorax, slightly tapering posteriorly, surface 

 deeply and coarsely punctured in irregular longitudinal series, leaving intersti- 

 tial raised lines, which are most regular between each pair of the punctured 

 lines. Tarsi with fulvous hair beneath, ungues reddish. Length 5i lines, elytra 

 4, pronotum 1 in length and H in breadth. In case S. brevicolU-i Mels., 1845, 

 Proc. Acad. Nat. Sc. 2, 220, is a distinct species, it will be difficult to deter- 

 mine whether the male here described appertains to it or to S. petrophya. I 

 think, however, that S. hrevicoUis has no sufficient character to separate it from 

 S. petrophya. 



Sandalus scabkicollis Hald. 5 Black, sides of the prothorax punctate 

 scabrous, convex before the middle and concave behind it, so as to be slightly 

 sinuous. Length 4i lines, elytra 3J. Cab. Le Conte. 



The prothorax is more coarsely punctured than in S. niger, (which has it 

 finely punctulate) and the single specimen observed, besides its small size, has 

 the apex of the elytra slightly compressed externally in a sloping direction. 



Genus Cryptopleuea Lee. Journ. Acad. 2d ser. 2, 6. 



Head small, mandibles acute, palpi with the last joint somewhat enlarging 

 towards the end, eyes subreniform, antennae short and slender, 1st and 5th arti- 

 culations rather longer than any of the rest. Prothorax subglobular, mesoster- 

 num protuberant. Scutel rounded posteriorly. Elytra rather slender, wider 

 than the prothorax, narrowing gradually towards the apex; humeri prominent, 

 sides sinuate near the base. Feet weak, femora slightly incrassaied towards 

 the apex. 



C. GRATA II<ild. Shining black; head, mandibles, thorax and scutel slightly 

 sericeous with yellowish hair ; labrum and palpi rufous, front flat, medial line 

 slightly raised. Thorax finely and sparsely punctured. Elytra with fine and 

 sparse piliferous punctures, apex truncate, marked each with 4 orantie spots ; 

 the 1st longitudinal, basal and medial ; the 2d before the middle, and marginal; 

 the 3d medial and subsutural ; and the 4th immediately behind the 3d. The 3 

 latter are irregular and confluent. Tibice, tarsi and base of the femora rufous. 

 8 lines long, humeri 4 wide. 



Tampico, Mexico, Lieut. H. Haldeman. 



TiMARCHA iNTRicATA. ObloTig convex, black, shining, scabrous with conflu- 

 ent impressed punctures, which are coarsest upon the elytra. Head irregularly 

 and densely punctate, front concave, with an indistinct fovea on each side; an- 

 tennae with the penult articulation extending to the base of the pronotum, 

 exterior articulations clothed with short brown hairs. Pronotum transverse, 

 apex broadly emarginate, medial portion rectilinear; base sub-sinuate; sides 

 very convex, narrowed posteriorly, basal angle? acute; surface varied with irre- 

 gular shallow impressions, and densely and irregularly punctate. Scutel with a 

 few punctures. Elytra scabrous with large confluent punctures, the interstices 

 irregular and finely punctate, humeral angle rectilinear and obtuse. Inferior 

 surface less densely punctate, punctures of the feet fine. Less than 5 lines long. 



Oregon, J. K. Townsend. 



I have adopted the name applied in Dr. Le Conle's Cabinet. 



