514 Coleopterological Notices, V. 



S. qiiadrigllttatum Say. — Jouni. Ac. Phila., Ill, p. 198; quadripustu- 

 latum II Say : 1. c, p. 198 ; quadrinotatum Casteln ? : Hist. Nat., II, p. 19 ; Dej. 

 Cat., 3d, p. 133 ; vslv. piceum Melsh. : Proc. Ac. Phila., II, p. 103. 



Oval, convex, highly polished, glabrous, black, the elytral maculae 

 red ; antennae, except the last five joints, testaceous ; tarsi rufescent ; 

 head subimpunctate ; pronotum sparsely and more or less deeply 

 punctate, with a transverse, broadly bisinuate series of coarse punc- 

 tures near the base ; elytra with two to four short, more or less de- 

 veloped series of coarse punctures before the middle and nearer the 

 suture than the sides, the sutural stria feebly impressed, more finely 

 and closely punctate, except the part along the basal margin, which 

 is coarsely punctate, extending to lateral third. Eyes large, sepa- 

 rated by less than their own width ; antennae rather longer than 

 the prothorax, the third joint slender, four times as long as wide, 

 much longer than the second and a little longer than the fourth, 

 sixth nearly twice as long as wide, tenth only slightly wider than 

 long. Prothorax one-third wider than long, the convergent sides 

 nearly straight from base to apex, the latter strongly beaded and 

 one-half as wide as the base ; scutellar lobe one-third the entire 

 width, broadly, evenly rounded. Scutellum rather small, parabolic, 

 nearly as long as wide. Elytra not quite as long as wide, one-half 

 longer than the prothorax ; sides arcuate ; apex a little narrower 

 than the base. Posterior tarsi scarcely three-fifths as long as the 

 feebly arcuate tibiae, the first joint a little longer than the next 

 two, barely as long as the fifth. Length 3.8-4. t mm. ; width 2.2- 

 2.65 mm. 



New Jersey to Kansas. I do not know at present whether the 

 variety pzceum occurs with the spotted specimens or not; at any 

 rate, it is impossible to discover any constant structural difference. 



S. Obliteratlim Lee— Proc. Ac. Nat. Sci., Phila., 1860, p. 322. 



The characters stated in the table are almost the only ones 

 which can be given to distinguish this species from the preceding. 

 The prothorax is a little shorter and more transverse, with more 

 arcuate sides, and the elytra are as long as wide and three-fourths 

 longer than the prothorax. Length 4.7 mm. ; width 2.6 mm. 



Rhode Island to Indiana. Appears to be rare ; I have only seen 

 the female. 



