356 MEMOIRS ON THE COLEOPTERA 



ing (cf ) or with the elytra opaque (9 ); legs black; head more than 

 two-thirds as wide as the prothorax, not elongate, the neck well de- 

 veloped; eyes rather prominent, the sulci not very coarse, slightly 

 converging; antennae as in sulcata and others of this group; prothorax 

 relatively much smaller, somewhat more than a fourth wider than 

 long; base feebly sinuate medially, not three-fifths the maximum 

 width; apex evidently sinuate; sides not coarsely reflexed but with 

 somewhat thickened edge, the parallel basal part a fifth or sixth the 

 total length; transverse impressions very diffuse though evident, 

 the posterior not forming a juxta-foveal depression; inner and outer 

 foveae coalescent, deep, elongate, the carina rather long but fine and 

 adjoining the margin; scutellum smaller, triangular, smooth through- 

 out; elytra oval, two-thirds longer than wide, two-fifths wider than 

 the prothorax; sides moderately reflexed, the sinus scarcely trace- 

 able; striae moderate, rather sharply and deeply incised, the punctures 

 somewhat conspicuous, gradually obsolete behind, the scutellar stria 

 a minute oval impression; intervals generally somewhat alternating 

 in width, the second and fourth wider than the others, broadly but 

 distinctly convex (cf), nearly flat (9). Length (cf 9 ) 17.5-18.5 

 mm.; width 6.0-7.0 mm. Iowa (Keokuk). Pennsylvania Le- 



Conte sodalis Lee. 



10 General outline and convexity nearly as in sodalis, rather shining, 

 black, the elytra opaculate in the female; head three-fifths as wide 

 as the prothorax, the eyes only moderately prominent, the sulci 

 slightly converging; antennae as in the preceding; prothorax also 

 somewhat similar in outline and strongly, subcircularly rounded at 

 the sides, but with the constriction less abrupt, shallow and broadly 

 rounded, the sides thence to the base very short; disk somewhat 

 shorter and more transverse than in sodalis, otherwise nearly simi- 

 lar; elytra two-thirds longer than wide, fully three-sevenths wider 

 than the prothorax, oval, the striae rather fine but deep, scarcely at all 

 impressed, the punctures not coarse but deep and conspicuous, obso- 

 lete apically; scutellar stria obsolete; intervals subequal, nearly flat 

 in the female. Length (9) 15.8-18.0 mm.; width 5.7-6.6 mm. 

 Indiana. Four specimens fatua Lee. 



Evarthrus sallei, colossus and torva of LeConte also probably be- 

 long to this genus, but the first is wholly unrecognizable, the two 

 lines in the table (Proc. Acad., 1873, p. 319) conveying no useful 

 information ; not even a measurement of length or recorded locality 

 is indicated, and, as the above is virtually the only reference to it, 

 I am obliged to consider it unpublished and therefore as merely a 

 manuscript name. Colossus, with its vestigial and punctiform scu- 

 tellar stria, I have not seen, apparently it belongs near gravida; 

 torva is also unknown to me. Two of my three specimens of grav- 

 ida have the scutellar region perfectly normal, the ocellate punc- 

 ture being merely within a feeble non-striiform impression, but in 



