THE GROUND BEETLES. 



81 



Group A. 



This group includes the Indiana species of Groups I-IV of Hay- 

 ird. 



KEY TO INDIANA SPECIES OF GROUP A. 



Thorax broadly margined, the margin translucent ; third interval of 

 elytra with two small dorsal punctures very near the third stria; 

 apical third of elytra yellowish. 101. flavicauda. 



Thorax narrowly margined, the margin not translucent. 

 b. Elytra with the recurved portion of the sutural stria parallel to the 

 margin ; dorsal punctures two, the first on the fourth stria near 

 the base, the second on the third stria near the apex ; color jet 

 black. 102. nanus. 



bb. Elytra with the recurved portion of the sutural stria short, nearly 

 parallel to the suture ; dorsal punctures two, placed on the third 

 stria when the latter is present, the second but slightly behind the 

 middle. 



c. Elytra with none of the striae punctate. 

 d. Thorax with the transverse impression near base not tripunc- 

 tate at middle (Fig. 52, c) ; elytra with the sutural stria 

 deep, the other striae obsolete, 

 e. Very convex ; thorax scarcely as wide at base as apex, the 

 sides strongly rounded in front, oblique behind. 



103. GRANARIUS. 



ee. Moderately convex ; thorax a little wider at base than apex, 

 the sides slightly curved in front, feebly sinuate behind ; 

 elytra distinctly wider than thorax. 

 /. Piceous or dark reddish-brown, the elytra with an ill-de- 

 fined stripe each side, or with subhumeral and subapical 

 spots, paler ; form moderately elongate. 104. incurvus. 

 ff. Uniform light readish-brown or brownish-yellow, elytra 

 rarely slightly darker on the disk ; form very elongate. 



105. DOLOSUS. 



dd. Thorax with the transverse impression near base with three 

 large punctures at middle. (Fig. 52, d.) 

 g. Thorax not wider at base than apex ; elytra distinctly wider 

 than thorax with a sutural and one to three abbreviated 

 dorsal stria?. 106. xanthopus. 



gg. Thorax wider at base than apex. 



//. Form subdepressed ; dark brown or piceous; thorax but 

 slightly wider at base than apex. 107. tripunctatus. 

 ////. Form convex. 



i. Iveddish-brown or piceous, the elytra paler at sides and 

 tip ; thorax distinctly wider at base than apex. 



108. vivax. 



ii. Black, very shining; legs pale; sides of thorax rounded 

 to behind the middle, sinuate behind. 109. capax. 



cc. Elytra with the sutural stria distinctly punctulate ; form robust ; 

 reddish-brown ; thorax tripunctate at base. 110. ferkugineus. 



