6C NORTH AMKKICAN 



At one of the basal angles ol' tlie {)ronotum there is in the type 

 specimen, a curious morbid growth consisting of two long erect 

 slender club-shaped members growing from the same root; there is 

 anotiier cluster of three shorter and more robust, growing from the 

 elytra near the humeral angle. These growths are probably of a 

 fungoid nature; they are black and of very firm texture. I have 

 also noticed them on various parts of the body and in other genera 

 of Carabidae ; in one case the first tarsal joint was thus infested. 

 Tiie growth may possibly be the result of some obscure disease. 



B. vividlim n. sp. — Form rather slender, very convex. Color through- 

 out black, witli a dark greenish-black metallic lustre; elytra with a very 

 small spot and a very narrow border, both near the apices and of very slightly 

 paler tint, scarcely noticeable ; under surface very dark rufo-piceous ; legs 

 rather pale, rnfo-testaceous ; basal joint of antennae same, second darker, 

 remainder dark fuscous ; maxillary palpi very dark fuscous, apical joint pale 

 testaceous ; liead and prothorax just perceptibly alutaceous, granulations 

 very fine and feeble, more distinct on the head. Head moderate, slightly 

 longer than wide ; eyes rather large, very convex, in great part visible from 

 above; intei'ocular surface broadly and feebly convex along the middle; 

 lateral snlcations broadly rounded, feeble ; epistomal suture rather distinct ; 

 anterior angles slightly produced, very acute; apical margin very feebly 

 emarginate ; labrum scarcely twice as wide as long, squarely truncate ante- 

 riorly, lateral setae three times as long as the intermediate, which are sub- 

 equal in length ; anterior supra-orbital seta slightly in advance of the middle 

 point of the eye, second opposite the posterior fifth ; emargination of mentum 

 scarcely more than one-third wider than deep, tooth wider than long, about 

 one-third as long as the depth of the notch ; second joint of the maxillary 

 palpi but slightly shorter than the third, glabrous, third coarsely and 

 sparsely setose ; antennae rather short, slightly longer than the head and 

 protliorax together, second joint two-thirds as long as the third, third dis- 

 tinctly longer than the fourth, joints four to seven equal in length. Pro- 

 thorax widest at two-fifths its length from the apex, where it is but slightly 

 wider than the head and scarcely one-sixth wider than long ; sides mode- 

 rately arcuate, straight toward the basal angles immediately before which 

 they are sinuate for a very short distance ; the basal angles almost right, 

 slightly prwluceil and not rounded ; base broadly arcuate throughout, about 

 three-fourths as long as tlie apex, which is nearly transverse; apical angles 

 very slightly produced, rounded ; disk rather convex, transversely rugulose 

 near the base ; median line very narrow ; edges extremely narrowly but 

 strongly retlexed ; basal depressions very close to tlie angles, strongly im- 

 pressed, carinae nearly obsolete. Elytra nearly one-half wider than the 

 pronotum ; sides parallel for two-thirds the length and ratlier feebly arcuate ; 

 humeri broadly rounded ; disk acutely rounded behind, rather strongly 

 convex, about three-fourths longer tlian wide ; striae very feebly impressed, 

 except the sutural, becoming obsolete in the posterior fourth, strongly punc- 

 tate ; intervals nearly Hat ; punctures round, deeply impressed, much closer 



