COLEOPTERA. 9") 



in length, rather slender, piceous-black ; first joint of the posterior tarsi 

 short, scarcely more than one-third as long again as the second, much shorter 

 than the last, joints two to four uniformly and rather rapidly decreasing in 

 length. 



M(de. — Unkno \v n . 



Female. — Sixth ventral segment very evenly rounded behind, throughout. 



Length 3.4 mm. 



Winchester, Massachusetts, 1. 



The type lacks the antennae, with exception of the basal joints. 



The species is broader and much more robust, and with a much 

 narrower head than those to which it is more closely allied; the 

 elytra are also proportionally longer. 



74. S. floridailllS n. sp. — Form rather slender. Pubescence rather 

 short, sparse, coarse, semi-erect, cinereous. Head robust, distinctly less 

 than twice as wide as long ; interocular surface nearly fiat, twice as wide as 

 the eye; longitudinal elevation narrow, feebly convex; punctures rather 

 coarse, very close, deep, somewhat irregular in outline ; ocular lines meeting 

 at one length in advance ; antennae slender, much longer than the width 

 of head, piceous-black, club slender; joints three, four, and five decreasing 

 uniformly and somewhat gradually in length, joints of club of nearly equal 

 thickness ; maxillary palpi long, slender, piceous-black, first joint translu- 

 cent, much paler, and piceo-testaceous. Prothorax widest slightly before 

 the middle, where it is four-fifths as wide as the head, and nearly one-sixth 

 narrower than long ; anterior margin distinctly longer than the posterior, 

 equally arcuate ; surface transversely impressed just behind the anterior 

 margin ; coarsely, closely, deeply, and irregularly punctate ; punctures 

 generally confusedly coalescent ; interspaces very narrow, convex, and very 

 highly polished. Elytra at the base as wide as the head ; sides very feebly 

 divergent posteriorly, much longer than the width at base, feebly arcuate ; 

 together broadly, angularly, and strongly emarginate behind ; suture about 

 one-tenth as long again as the pronotum ; surface strongly and narrowly 

 impressed on the suture toward the base ; coarsely, deeply, very closely, 

 and extremely irregularly punctured and channeled, channels generally 

 perpendicular to the suture in the impressed area, and convergent toward 

 the inner apical angles behind ; punctures occasionally isolated along the 

 borders of the impressed area. Abdominal segments decreasing very uni- 

 formly and gradually in width, first somewhat narrower than the contiguous 

 elytra ; surface highly polished, finely, and irregularly, but generally dis- 

 tantly punctulate ; punctures very sparse along the middle ; transverse 

 carinae 4-cuspid, cusps moderate in length, aciculate. Legs short and 

 slender, piceous-black ; first joint of the posterior tarsi one-half as long 

 again as the second, as long as the second and third together, slightly 

 shorter than the last, joints two to four uniformly and very rapidly decreas- 

 ing in length. 



Male. — Posterior edge of the fifth ventral segment just perceptibly and 

 roundly emarginate in its middle fourth, contiguous surface exhibiting but 



