228 Memoirs on the Coleoptera 



next two combined. Length (cf 9) 17.0-18.5 mm.; width 6.0- 

 6.6 mm. Rhode Island, New York (Long Island), Maryland, 

 Pennsylvania, Lake Superior (Marquette), Indiana, Iowa and 

 Missouri. [G. americana Fab., nee Linn.; cyanipennis Dej., and 



cordicolUs Chd.] ' janus Fabr. 



Color in general as in the preceding, except that the elytra are deep 

 black and without bluish hue; head elongate, three-fourths as 

 wide as the prothorax, coarsely punctato-rugose, more sparsely 

 punctate anteriorly on the median longitudinal convexity, the central 

 red spot scarcely definite; pubescence coarse, fulvous and rather 

 long; eyes very prominent, the tempora circularly rounded, sub- 

 parallel behind the eyes; neck deeply constricted as usual; antennae 

 rather long, colored as usual, the first four joints conspicuously 

 pubescent; prothorax large, elongate, widest at two-fifths from the 

 apex, the sides broadly arcuate, broadly sinuate basally, the angles 

 very obtuse but with definite tips, broadly and strongly reflexed; 

 punctures dense and relatively fine, subrugose; surface broadly sub- 

 depla!iate laterally, the edge narrowly reflexed; elytra nearly twice 

 as wide as the prothorax, four-fifths longer than wide, in general 

 form and sculpture nearly as in janus, but with the short, fine and 

 abundant pubescence more obscure, finer; anterior male tarsi with 

 the first three joints strongly, obliquely asymmetric as usual, the 

 first as long as the next two. Length (cf ) 21.0 mm.; width 6.9 mm. 



Florida. [G. thoracica Csy. nee Chev.] caseyi Leng 



8 — Form notably elongate, colored as in the preceding, the elytra deep 

 black; head broad, oblong, slightly longer than wide, nearly four- 

 fifths as wide as the prothorax, the eyes large but only very moder- 

 ately prominent, at less than one-half more than their own length 

 from the base, the tempora near the eyes nearly as prominent as the 

 latter, rapidly, circularly oblique thence to the constricted neck; 

 surface convex, deeply and densely punctato-rugulose and with a 

 conspicuous central red spot, immediately before which there is a 

 small polished smooth spot; anterior impressions broad; antennae 

 short, the basal joint pale rufous, the next three deep black, the 

 remainder pale brown, one to four with dense shaggy pubescence; 

 prothorax not distinctly longer than wide, widest slightly before the 

 middle, the sides rather strongly, evenly arcuate, becoming parallel 

 for a short distance at base, the angles right but distinctly rounded; 

 base rectilinearly transverse, the surface densely punctate, not de- 

 planate though gradually sloping laterally, the basal foveae deep, 

 connected transversely by a feebly impressed line; elytra very 

 feebly inflated posteriorly, more than three-fourths longer than wide, 

 in general form, sculpture and pubescence as in the preceding species, 

 not quite twice as wide as the prothorax. Length (9) 17.7 mm.; 



width 6.0 mm. Rhode Island (Boston Neck) occipitalis n. sp. 



9— -Tempora longer, much longer than the length of the eyes 10 



Tempora notably short, about as long as the eyes 13 



10 — Base of the prothorax relatively wider, only a little narrower than 



the maximum width 1 1 



Base much narrower than the maximum width 12 



