1 ••>( ) • > 



THE PYTH1D BARK BEETLES. 



ing the thorax narrowed behind, rarely manned at >, ots 



disk without basal impressions. In for,,, they are usual!, long and 

 narrow either slightly convex or mneh flattened. Ihe> oe. .. « 

 nS bark, osualfy that of pine, and have no speeial eeononne nn- 



P ° r oTh" then the characters above mentioned, the PytJnd* Jiave 

 t „o , prominent, not constricted behind the eyes , 

 Sitber emarginate or finely granulate ; antenna, ll-jomted, s hghtl, 

 tokened toward the tips; elytra rounded at apex, covcrmg the ab- 

 ttn t latter with five free ventral segments; -nt ^ eon, 

 cal, usually contiguous, the cavities open behind; tarsi slender, 



npver lobed, their claws simple. 



Of 2 n ne genera recognized by LeConte and Horn, representa- 



tiv « o but thrte have been taken in the State, while those o one 

 other probably occur. The only papers treating of any of the 

 North American species are as follows : 



Horn. - "Table of the species of Cononotus," in Trans. Amer. 



Ent. Soe., II. 1868, 136. 

 LeConte -"Table of Rhinosimus," in N. Am. Entom I, 1868, 4 

 Tori.-" Synopsis of the Genus Pytfco," i« Trans. Amer. Ent. 



Soc XV, 1888, 45-46. ,, . ., 



Wickham. "The I 'ythi.hr of Ontario and Quebec, m Oan. 

 Ent.. XXXI. 1899, 57-61. 



KEY TO INDIANA GENERA OF PVTHID.E. 



a Middle coxa, with distinct trocnanttns : last Joint of maxillary palpi di- 

 «. Middle coxa; \wm ..,.„.,,,., ■ length 30 or more mm. 



lated; mandibles visible beyond the labrum, engtn 

 „. Third joint of antenna, not longer than tourth ; els t. a not stnate.^ 



66. Third joint of antenna, longer than fourth ; elytra striate ; hody^mmh 







length less than 5 mm. Saemngus. 



c. Beak of head broad and very short. ^ Rhino sime;s. 

 cc. Beak prolonged. 



I. Bonos Herbst. 1797. (Or., "to shine.") 

 But one species from North America belongs to this genus. 



2410 (7708). Bobos vnicoix* Say. lourn. Phil. Acad. Nat. Sci., V, 1826, 

 2.3S ; ibid. II. 305. 



Elongate, slender, subdepressed. Uniform piceous, shining ™* ° r 

 not at tn pubescent. Antenme one-third longer than head. I hoi ax oval, 



