50 [April, 1S44. 



Also resembles ihe quadripennis, but the elytra are more blue, and the first 

 five costs of the elytra are more apparent than the rest, and are impunctured on 

 the top. The first two joints of the antennae and base of the third are ferru- 

 ginous, the rest brown. Sides of the head coarsely punctured, frontal impres- 

 sions longer, more rugous and more punctured. The thorax is more retracted 

 posteriorly, wider and more rounded anteriorly. 



10. Brachinus patruelis. Dej. Cat. Length 4£ lines ; breadth ljj. In- 

 habits New York. 



Resembles somewhat B. cordicollis, but the frontal impressions are longer ; 

 first three joints of antennae and base of fourth ferruginous ; the third has a 

 small brown spot at the extremity, and the remaining joints are also brown. In 

 the cordicollis the two first and base of the third only are ferruginous: thorax 

 much wider and more rounded anteriorly. Elytra bright blue, costae slight, and 

 much less elevated than in the cordicollis. 



11. Scarites otus. Nob. 12. S. ephialtes. Nob. 13. S. intermedins. 

 Nob. 14. S.affmis. Nob. 15. S. subterraneous. Fabr. 16. S.affinis. Nob. 

 (As we intend publishing a monograph of these species in a few weeks, it will 

 be useless to add descriptions here.) 



17. Clivina impressifrons. Nob. Length 3; lines ; breadth § line. 

 Dark rufous : front with three wide and deep longitudinal impressions, the 



middle one abbreviated at the ends, so as to form an oblong fovea. Thorax ob- 

 long, rounded behind ; but little convex ; longitudinal line deeply impressed. 

 Elytra narrower than the thorax, parallel : striate, striae punctate : third interval 

 with three impressed points. Inhabits New York. 



Resembles C. rufescens: but differs from it in being larger, in having the 

 front deeply impressed, and the elytra narrower than the thorax. 



18. Clivista convexus. Nob. Length 2\ lines ; Breadth § line. 



Head and thorax black; the latter convex and round : anterior transverse im- 

 pression scarcely visible : median line distinct. 



Elytra piceous, with a large transverse rufous sutural spot near the extremity : 

 deeply striate ; striae strongly punctate, with but one impressed point on the 

 third interval, near the extremity. Inhabits Georgia. 



Resembles the C. bipustulatus ,- but is readily distinguished by its rounded 

 thorax and the very slight anterior transverse impression. 



19. Rembus striatopunctatus. Nob. Length 6j} lines; breadth 3|. 

 Black, shining : palpi black, with the extremity of each articulation rufous ; 



antennse blackish-brown : frontal impressions deep, incurved at the middle, as in 

 the impresskollis. Medial line of the thorax deeply impressed, and abbreviated 

 at both ends : transverse impressions indistinct, basal ones deep, with an inwardly 

 deep cut furrow beyond the middle. 



Elytra striate ; strim punctate : the second one incurved at the tip : the third 

 and fourth and fifth and sixth united at the tip ; interstices convex, with an 

 impressed point on the middle of the third rudimental striae, a mere point between 

 first and second stria. Inhabits Pennsylvania. Found at Carlisle by S. F. 

 Baird. 



