TIII<: SIFORT- WINGED SCAVENGER BEETLES. 339 



The only genus of the tribe occurring in Indiana is : 



III. GYRONYCIIA Casey. 1893. (Gr., "circle + claw.") 



Elongate, linear, depressed; head of moderate size; antennas 

 long, slender, the outer joints usually slightly enlarged; third joint 

 of maxillary palpi but slightly longer than second; thorax oblong; 

 elytra long and well developed ; tarsal claws divergent, abruptly 

 bent downward behind the middle. 



634 (9608). GYRONYCHA FUSCICEPS Casey, Ann. N. Y. Acad. Sci., VII, 1893, 

 376. 



Dull reddish-brown, head pic-onus : legs and basal joints of antennae pale 

 yellow. Head about as Ions as wide, shorter and slightly narrower than 

 thorax ; antennae as long as thorax and elytra, the outer joints feebly but 

 distinctly larger, the third shorter than the second. Thorax slightly longer 

 than wide, sides feebly rounded ; disk, as well as that of elytra, faintly alu- 

 taceous, minutely and densely punctate. Elytra one-third wider and longer 

 than the thorax, thickly clothed with fine, short yellowish pubescence. 

 Length 2.7 mm. 



Putnam County; i-are. October 17. 



Tribe IV. OLIGOTINI. 



Head not prolonged in a beak in front. Antenna? with ten joints 

 only. Inner lobe of the maxilla? as in the preceding tribe. All the 

 tarsi with four joints. 



Although no representative of the tribe has been found thus far 

 in Indiana, yet it is very probable that one or more members of the 

 following genus occur : 



OLIGOTA Mannh. 1830. (Gr., "little.") 



Very small; antenna- 1 short, the outer joints much thickened; 

 head rather small, narrower than thorax, base not constricted; tho- 

 rax very short, much wider than long, as wide at base as elytra 

 which arc rather short ; abdomen pointed behind. 



Tribe V. BOL1TOCHAKINI. 



Head not prolonged in a beak in front ; inner lobe of the max- 

 illa? horn-like or corneous on inner side, leather-like on outer side 

 (in Silusa the whole inner lobe is horn-like). Front and middle 

 tarsi with four, hind tarsi with five joints. The following genera 

 are probably represented in the State : 



