lOO CASEY 



Body nearly as in rusticorum, of the same color, the head, anterior thoracic 

 angles and abdomen similarly spotted, except that on the first there 

 are no frontal dots; the prothorax however is differently shaped, being 

 somewhat constricted anteriorly, with the sides toward base rounded; 

 it is also channeled [referring without much doubt to the impressed 

 stria, frequently observable toward base in many species]; the sculp- 

 ture of the elytra is similar but they are more attenuated and truncated 

 at the end, as in rustica, and armed with three minute denticles. Length 

 15.5 mm. British America (Cumberland House, Lat. 54°). 



paganorum Kirby 



Body much smaller and narrower than in rusticorum, polished, brighter 

 bronzed, greenish or subcupreous; head moderate, densely punctate, 

 with median and subposterior levigated spaces; eyes only moderately 

 convex ; prothorax three-fourths wider than long to nearly twice as wide 

 as long, trapezoidal, the sides more or less inflated and broadly arcuate 

 in rather more than basal half, the surface almost evenly convex, 

 strongly but very unevenly punctate, coarsely and densely so laterally, 

 more sparsely and less coarsely medially, with large sublateral smooth 

 spaces and a distinct smooth median line which is generally finely, 

 briefly striate at base; elytra but little wider than the prothorax, nearly 

 twice as long as wide, gradually strongly oblique at the sides in apical 

 third, the apices transversely truncate, the truncature sometimes 

 irregular or finely spiculose, the outer angle obtuse, never dentiform; 

 under surface strongly, closely punctate; lateral spots of the penulti- 

 mate ventral segments very small and frequently subobsolete, those of 

 the last segment obliquely linear, sometimes also posteriorly ramate 

 along the margins but never meeting on the median line. Length 

 (c?, 9) 1 4.0-1 6.0 mm.; width 5.0-5.9 mm. New Hampshire, Ver- 

 mont, Michigan, Wisconsin (Bayfield), South Dakota and Mani- 

 toba. [=sexnotata Lap. -Gory] maculativentris Say 



23 — Pale spots well developed at the sides of all the ventral segments as in the 

 preceding group 24 



Pale spots wanting or greatly reduced at the sides of the abdomen, except 

 on the last segment, where they are correspondingly more conspicuous, 

 forming a large transverse red fascia 27 



24 — Prothorax very strongly narrowed anteriorly, the apex not more than 

 two-thirds as wide as the maximum width. Body elongate, convex, 

 black, the pronotum with very feeble cupreo-violaceous lustre; head 

 ( 9 ) densely punctate, the intercular surface in great part coarsely 

 rugose, with the entire frontal margin, enclosing two black points 

 and emitting a long posterior medial spur, pale yellow; also with a 

 suboblique and more orange spot at the upper part of each eye, the 

 eyes not prominent; antennas rather long, extending fully to the tho- 

 racic base; prothorax nearly twice as wide as long, widest behind the 

 middle, the sides evenly and strongly arcuate, becoming gradually 

 very convergent and less arcuate anteriorly; surface with the usual 

 antero-lateral yellow vitta, almost evenly convex, coarsely, densely 



