THE GEOUJTD BEETLES. 



123 



behind, margin strongly reflexed, basal impressions deep. Elytra elliptical ; 

 striiB moderately deep ; intervals conves, the alternate ones with a row of 

 rather large punctures on the sides. Length IS-l.o mm. fFig. 72.) 



Vigo, Putnam, Monroe and Franklin comities ; scarce. May 8- 

 Oetober 4. Occurs beneath stones in deep wooded ravines. 



]'.)'.:» (TfJ2i. Platyxus QUAOBiMACLLAii s Hnrn, Trans. Amer. Em. Sou.. 

 XII, ISSo. 130. 

 Elongate-oval, slender. Antf-nme, leirs and thorax reddish-yellow ; head 

 .iiid elytra black, the latter with basal third and large rounded subaplcal 

 spot reddish-yellow. Thorax somewhat cordiform. a little longer than wide, 

 narrowed at br.se, with an extremely narrow reflexed margin. Elytra oval, 



Fig. 72. ■ 26. (Original. J 



fig. 73. 

 (After Horn.) 



broader behind; intervals flat, the third with three very small dorsal punc 

 tures. Length 7-7.5 mm. (Fig. 7.3.) 



Knox and Posey counties; rare. April 20-April 25. Oeeui-^ 

 beneath cover in raoist localities.* 



P. angustatus Dej., 13-14 nun. in length, is said to inhabit the 

 ^liddle and Southern States, and perhaps occurs in the hilly por- 

 tion of southern Indiana. 



Geoup B. 



Composed of winged species, black or piceous in color, having 

 the thorajc strongly margined, basal impressions large and deep, 

 hind angles obtuse or rectangular. Elytra one-half or more 

 broader than thorax, tnmcate at base, more or less sinuate toward 

 the extremity, the .striae fine to deep, the second strife or third in- 

 terval with three or four impressed punctures. 



»See Can. Ent. XXXVUI, 1906, p. 267. 



