90 NORTH AMERICAN 



In this form the elytral sculpture differs from any yet examined, 

 and it cannot fail to be readily distinguished. The eyes are very 

 pale ; the explanation of this condition, which appears to Tbe more or 

 less specific, is somewhat obscure. 



69. S. OCCideiltalis n. sp. (Crotch MS.). — Form moderately robust; 

 sides nearly parallel. Pubescence moderately short, rather sparse, fine, 

 sub-recumbent, setiform, and cinereous. Head moderate, slightly more 

 than twice as wide as long ; interocular surface very feebly convex, more 

 than twice as wide as the eye ; rather finely, closely, and evenly punctate, 

 punctures rounded ; sulcations broadly rounded, feeble ; intermediate sur- 

 face broader than the lateral portions, evenly and moderately convex ; ocular 

 lines meeting at one length in advance ; antennae as long as the width of 

 head, very moderately robust, dark piceons-brown, basal joint black, club 

 moderate; third joint scarcely more than one-fifth as long again as the 

 fourth, fourth and fifth equal, sixth and seventh shorter, equal in length, 

 the latter the more robust, eighth one-half longer than wide, joints of club 

 increasing very gradually in length, the last two thicker and of equal width ; 

 maxillary palpi slender, piceous-brown, slightly paler toward the base. 

 Prothorax arcuately and gradually widening to a point well behind the 

 middle, wdiere it is five-sixths as wide as the head and distinctly narrower 

 than long ; sides thence rather rapidly convergent posteriorly and strongly 

 sinuate ; anterior margin very slightly shorter and much more arcuate than 

 the posterior ; surface finely, generally closely, and very irregularly punctate ; 

 punctures isolated and circular in outline near the middle, closely crowded 

 and transversely coalescent near the base ; rather strongly and minutely 

 tuberculate near the basal angles ; along the middle toward the base, there is 

 an arrangement of punctures somewhat resembling a canaliculation. Elytra 

 at base as wide as the head ; sides rather strongly divergent posteriorly, 

 slightly longer than the width at base, feebly arcuate, most strongly so be- 

 hind ; together broadly, roundly, and distinctly emarginate behind ; suture 

 very slightly longer than the pronotum ; surface very feebly impressed along 

 the suture toward the base, rather finely, very closely, deeply, and irregu- 

 larly punctured and channeled, channels generally arcuately arranged near 

 the suture, more or less convergent toward the inner apical angles. Abdo- 

 minal segments decreasing uniformly, though just perceptibly, in width, first 

 very slightly wider than the contiguous elytra ; surface very broad and feebly 

 convex, finely, very feebly, somewhat distantly and irregularly punctulate ; 

 transverse carinae 4-cuspid, cusps nearly equal in length, rather short, finely 

 aciculate, widely separated. Legs moderately short and slender, black 

 above, very dark piceous-brown beneath ; first joint of the posterior tarsi 

 very slightly longer than the second, shorter than the last, second and third 

 joints sub-equal ; tarsi robust. 



Male. — Fifth abdominal segment not modified ; sixth broadly and deeply 

 sinuate at apex, sinus somewhat broader than the apices, more acutely 

 rounded at the bottom than at the sides, nearly five times as wide as deep ; 

 seventh segment narrow at tip, where it is feebly and very evenly emarginate. 



Female. — Sixth ventral segment very broadly and evenly rounded behind. 



Length 3,0 mm. 



