AMARINyE 287 



series very narrowly interrupted ; intervals distinctly convex. Length 

 (9 ) 6.0 mm.; width 2.8 mm. Virginia (Fortress Monroe). 



volatilis n. sp. 



Head smaller, the body much smaller and less stout 24 



24 Form oblong-oval, convex, dark piceous, the prosternum and ab- 

 domen rufous, the legs flavo-rufous; head slightly more than half 

 as wide as the prothorax, with moderately prominent eyes and well 

 developed oblique strioles; antennae rather short, extending barely 

 to the thoracic base, obscure ferruginous, paler basally; prothorax 

 shorter, three-fifths wider than long, the sides almost evenly arcuate 

 from base to apex, the basal angles very obtuse and slightly blunt; 

 apex three-fourths as wide as the base, feebly sinuate, with broadly 

 rounded angles; impressions obsolete; stria fine but broadly and 

 rather deeply impressed; foveal punctures few and clustered loosely 

 at the inner fovea, which is broadly impressed, the outer small, more 

 distinct, oval; elytra less than one-half longer than wide, barely 

 wider than the prothorax, very gradually rounded behind the middle, 

 the sides arcuate; striae coarse, feebly impressed, rather coarsely 

 and conspicuously, crenately punctate, the scutellar short, oblique, 

 punctate, the lateral series scarcely or very narrowly interrupted; 

 intervals distinctly convex; tarsi long and slender. Length (9) 

 5.0 mrn.; width 2.0 mm. Wisconsin vegrandis n. sp. 



Form oblong-oval, moderately convex, deep black, the pronotum rufo- 

 diaphanous at the sides posteriorly, the under surface more or less 

 rufous, the legs rufous; head barely half as wide as the prothorax, 

 with very prominent eyes and impressed strioles, rufescent at base; 

 antennae pale ferruginous, slender, extending far behind the tho- 

 racic base in the male; prothorax trapezoidal, not quite one-half wider 

 than long, the sides evenly converging and evenly, moderately arcu- 

 ate from base to apex; basal angles well rounded, the puncture much 

 more distant from side than base; apex only two-thirds as wide as 

 the base, very feebly sinuate, with broadly rounded angles; basal 

 impression distinct, the apical vestigial, the stria fine, not impressed; 

 punctures of the foveal area numerous, moderate in size, not ex- 

 tending to the sides; inner fovea broadly, feebly impressed, linear 

 anteriorly, the outer small, almost obsolete; elytra one-half longer 

 than wide, scarcely at all wider than the prothorax, rounded in about 

 apical third; striae fine, very feebly impressed, with rather fine and 

 notably distant punctures, the scutellar fine, free, punctate, some- 

 what disintegrated; lateral series not clearly or but narrowly inter- 

 rupted; intervals just visibly convex; tarsi long and slender as usual. 

 Length (cf ) 5.0 mm.; width 2.2 mm. Mississippi (Vicksburg). 



fluminea n. sp. 



25 Elytra rather abruptly and obliquely rounded at apex, with distinct 

 though broad sutural angle and more coarsely punctate striae. Body 

 oblong, convex, polished, piceo-rufous, feebly aenescent, the last two 

 abdominal segments and the legs pale flavo-rufous; head small, very 

 slightly more than half as wide as the prothorax, with well developed 

 prominent eyes and very short strioles; antennae ferruginous, ex- 

 tending slightly behind the thoracic base; prothorax less than one- 



