THE DARKL1KG BEETLES. 



KEY TO GESEEA OF BOLETOPUAG1NI. 



„. Antenna 10-jointed; eyes not entirely divided. BotEIOTHEBCS . 

 „„. Antenmu 11-jointed ; eyes completely divided. XXIV. »*««™ s " 



XXIII. 



Boletotherus Candeze. 1861. (Gr.. "fungus -to 

 hunt." 



iig. 565. X ?. 

 (After Emit ens ) 



In this genus the males have two horns, slightly curved and 

 broade t tip projecting forward from the thorax, and a short 

 horn bifid a, tip, on the elypeus. The fetnales have the thorax 

 strongly taberculate. One species is known. 

 2346 ( 7540). Boletothekvs bWuecus Fab., Ent 

 Svst. Supp., I. 1T98, 40. 

 OWong, robust. Black or b r o w nisB- b 1 a c k, 

 opaque. Thorax three times as broad as long, mar- 

 ^ broadly flattened and serrate with rounded 

 teeth: the disk with horns or tubercles as above 

 mentioned. Elytra each with four rows o larae, 

 irregular tubercles with smaller ones on the inter- 

 vals Length 10-11.5 mm. (Fig. 56o.) 



vais. r,en e m October IT When dis- 



Throiighout the State : frequent Mat -t-O.to Lei - 

 turbed they feign death, their form and rong hened surf . ee b endn 

 with the irregularities on the surface of the fungi m such a mannei 

 as to render the beetles almost invisible. 

 XXIV Boletophagus Illig. 1798. (Or., "fungus 4 eating.") 

 ' Two species are known from the eastern ^ed State, both £ 

 which probably occur in Indiana, though but one has as j et 

 Sen. The head and thorax are not horned m either sex. 



KEY TO SPECIES OF BOLETOPHAGUS. 



thp margin strongly creuulate 

 a. Thoracic disk with numerous tubercles, the margin S COKncoUL . 



and deeply notched in front of innd a ^ gldes regularly 



aa. Disk of thorax coarsely punctured, not tubeiatiat DEpRESSVS . 



rounded, not creuulate. . 

 o34T (7541). Boletophagvs coimcow Say. Jcurn. Phil. Acad. Nat. Sc,, 

 V 1826, 239; ibid. I, Ho- 

 Oblong, robust.' Black or J^"^ J^J^ £ 

 prominent, the ^ ^^s granules or smai, tuber- 



"wnb row r f widely interrupted elevated lines or elongate 

 ^rcS^maner ones in tbe intervals. Length S-S.o mm 



Se County: scarce. May 28. Tahen from beneath bark ol 

 birch and pine. 



