THE SIIOKT-WIXOKn SCAVENGER BEETLES. 403 



Joint twice the leiiirl'i «>r lourtli. Thorax subcylindrical, widest onc-tbird 

 from base; disk liiiely, evenly and densely punctate and with a narrow, 

 deep median impression .inst behind the middle. Elytra at base as wide 

 as head, slijihtly lonprer tlian wide, coarsely and regularly punctate. Length 

 4.4-5 mm. 



Floyd County; mro. October 9. Taken nloiii;' the Ohio River; 

 also by Dury at Ciiiciiitinti. 



770 (2.".04K Stknus colon Say, Trans. Amer. Phil. Soc, IV. 1834, 458; 

 ibid. TI. 574. 

 Klongato. ralhcr sl(>iulcr. Black, shining; under surface i)icoous; ely- 

 tra eacli with a subluiiate or triangular reddish-yellow spot behind the mid- 

 dle; legs dull yellow, the femora fuscous on apical third. Head slightly 

 more than twice as wide as long, deeply excavated and densely punctured 

 between the eyes; antennie not reaching middle of thorax, the third joint 

 one-half longer than fourth. Thorax widest at middle, densely and rather 

 coarsely punctate and with a short, narrow and deep impression .iust bo- 

 liind the middle. Fllytra at base much narrower than head, densely and 

 coarsely punctate. Length .">.(!^ mm. 



Described from Fosey County. Kiiown from Michigan. Vir- 

 o;inia and other Southern States. Not represented in the collection 

 at hand. 



-Si. semicolon Lee., has the saim^ I'ange as the preceding and 

 doubtless occurs sparingly in Indiana. 



Division B. 



In addition to the complete spiral or whorl of nnit^^d puncttires, 

 the meml)ers of this Division usually hav^e single, more or less iso- 

 lated punctures on the othei- parts of the elytra. Four species be- 

 longing hew may occur in the Slate, though bnt three have been 

 taken . 



KEY TO INDIANA SPECIES OK OTVISION H. 



a. Jjegs black beneath. 



b. Elytra (ahmg the suture) distinctly Umger than thorax: head as wide 



as the elytra at base, deeply excavated between the eyes. 



780. .UNO. 

 hh. Elytra ratlier shorter llian thorax, the Latter very robust; body de- 

 pressed. AUSTIN I. 

 iitt. Legs not black beneath: elytra slightly longer than thorax, the latter 

 widest at or just behind tlie middle. 



c. Median imitression of thorax beginning before the middle, narrow, 



deep, conspicuous; elytni deeply, closely and irregularly channeled; 

 fifth vciiti'al of male willi a roiiiided notch at apex. 



781. FEMOBATUS. 



