THE GEOUND BEETLES. 117 



bles Ptcrosiiehus permuyidus. hut pasily distinguished by the lack 

 of doisal pimetures. 



XXX. Badistbr Clairv. 1806. (Gr., "a fast walker.") 



Small pieeous, brownish or spotted beetles, possessing the char- 

 ac-ters of the tribe Lieinini. but having only the two basal joints of 

 •antenna; entirely glabrous; the elytra with the eighth and ninth 

 striae well separated and the ti[)s not sinuate. They occur beneath 

 stones and logs, usually singly and in damp localities, and are com- 

 paratively rare. The following papers are cited for students in- 

 terested in the North American forms: 



LeConte. — "Short Studies of North American Coleoptera," m 

 Trans. Amer. Ent. Soc, VIII, 1880, 165. 



LeCortife.— "Synoptical Table," in Bull. Brook. Entom. Soc, V, 

 1882, 7. 



Eleven species are known from the United States. Of these 

 five have been taken in Indiana. Two others may also occur, while 

 a ne^v form is herewith described. 



KEY TO INDIANA SPECIES OF BAUISTtK. 



a. Elytral strioe deep, the iDterviils narrow, cmivex; auteiiii;e aud less 

 reddisli-yelluw ; elytra' reddisli-browu, darker beliiud. 



INS. .\(n'ATLS. 



aa. Elytral stria; shallow, iuterval.-? J-|at or nearly sn. 

 h. Elytra spotted. 



c. Thorax, legs and elytra yellow ; elytra with a broad middle band, 



interrupted at the suture, and an apical sjjot. blacl^, iridescent. 



189. PULCHELLUS. 



cc. Thorax black, legs and basal third of elytra orange; apical two- 

 thirds (it elytra black «ith an orange spot near ape.x. 



190. MACULATrS. 



bh. Elytra not spotted, sometimes bicolored. 



d. Thorax and legs dull brownish-yellow ; elytra pieeous, margined 



at sides, b.ise and .suture with jellowish-brown ; length '}Sj-(j mm, 



OBTOSLS. 



ilfl. Black or pieeous, legs yellow, 



c. Hind angles of thorax very much 'rounded ; length il mm. 



FLAVIPES. 



ee. Hind angles obtuse, not or feebly rounded. 



f. Head as broad as thora.x ; marifiiis of latter of same color as 

 disk. 191. lATiCEPs. 



ff. Head narrower than thorax ; margins of latter paler than disk. 

 g. Larger, 5-C mm. ; margins of tliorax narrow, not more re- 

 flexed towards the base, 192. micans. 

 Oy. Smaller, not over 4 mm, ; margins of thorax wider and more 

 reHexed towards the base. 193. befm:xus. 



