TMK CYLINDRICAL BARK I :KKT].KS. >>< 



Tribe V. CKKYLOMXI. 



Small oblong or oval flattened beetles having the last joint of 

 palpi small and pointed, next to last thick, oval; middle and hind 

 coxa 1 widely separated; first ventral segment as long as the three 

 following; first three joints of tarsi short, together shorter than 

 fourth. Two genera are represented in Indiana, each by a single 

 species. 



KEY TO GENERA OF CEHYLONINI. 



(/. Antenna? 10-jointed, club composed of a single joint; front coxal cavi- 

 ties closed behind: tibia- with small terminal spurs. X. CEHYLON. 

 mi. Antenna' 11-jninted. club 2-joinled ; front coxal cavities open behind; 

 tibia' without terminal spurs. XI. PHILOTHERMIS. 



X. CERYLON I.atr. 1S02. (Gr., the name of a bird, i 



Head small, deeply inserted; front coxa' widely separated, pro- 

 sternum broad. 



*1oo. r . (3200). CF.UYLOX cASTAM-.t M Say. Joiirn. T.'hil. Acad. Nat. Sri., V, 

 1820. 2.10; ibid. II, 321. 



Oblong-elongate, depressed. Dark reddish or chestnut-brown, shining. 

 Thiirax nearly square, hind angles rectangular, disk with a slight impres- 

 sion cm each side at base, rather coarsely but not densely punctured. Ely- 

 tra scarcely wider than thorax, surface striate, the .stria; punctured. Length 

 '23 mm. 



Frequent in the southern half of State: less so in the northern 

 counties. March 25-Drcember 2S. Occurs in winter on the under 

 side of deeply buried logs, and also then and at other seasons be- 

 neath bark of elm and other trees. 



XT. PniLOTiiERMrs Aube. 18:38. (Gr.. "love + heat.") 



*HK>0 (3201). PinLOTHERMrs or.AURK rr.rs Lee., N. Spec. N. Amer. Col.. 



I860, 09. 



Elongate-oval, suhdepressed. Dark reddish or chestnut-brown, shining. 

 Thorax broader than long, broadest at base; sides regularly curved from 

 apex to base, margin distinctly reflexed; disk sparsely and finely punctate. 

 Klytra not wider than thorax, with rows of rather coarse punctures which 

 are less distinct toward apex. Length 2-3 mm. 



Throughout the State; common. March 12-December 25. Oc- 

 curs beneath bark and rarely beneath stones. 



Tribe VI. MnitMIDIlNL 



The principal distinctive characters of this tribe, in addition 

 to those given in the key, are the very small ov;d body, the 10-jointed 



