1016 FAMILY LII. — CERAMBYCIDxE. 



1SS2 (5985). Smodicum cucujiforme Say. Jduru. I'liil. Acad. Nat. Sci., V, 

 182G, 277 : ibid. II, 3.34. 

 Elongate, uai-row, depressed. Pale, dull yellow, shining ; antennse slightly 

 darker. Thorax longer than broad, slightly contracted before the middle ; 

 surface, together with that of elytra, rather sparsely, hnely and irregularly 

 punctured. Foniora much dilated. Length 7-8 nnn. 



Throuphont the State ; frequent. July 2-Noveinljei' 24. Occurs 

 beneath the close fitting bark of dead poplar, oak, locust and linn 

 trees. Has the fonn and habits of a inuuber of the Cucujida^ 

 whence the specific name. 



Tribe II. CALLIDIINI. 



The species of this tribe are moi-e or less flattened, but not very 

 slender in form, and the thorax ;ni(l elytra are never armed with 

 spines. The eyes are finely granulate and deeply emarginate; head 

 small with the front short and perpendicular; front coxal cavities 

 transverse, open behind, the coxip with large trochantin. Males 

 with antenna? usually longer than body and thicker at base than in 

 females; the fifth ventral segment short, subemarginate. Four 

 genera are known to be represented in the State, while two others 

 ]iroliably occur. 



KEY TO INDIANA GENEKA OE CALI.IDIINI. 



(/. Elytra with narrow raised white lines; thorax with very deep median 

 groove; thighs strongly clubbed. VII. Physocnemum. 



aa. Elytra without distinct raised white lines. 



h. Thorax very short, strongly rounded on the sides; u])per surface en- 

 tirely opaque; black, thorax red. IJiiopalopus. 

 hi). Thorax not very short, the width not niurh exceeding the length; up- 

 per surface more or less shining. 

 c. Front cox:to contiguous, the prosternum very narrow and pointed. 

 (I. Palpi unequal, the labial much the shorter; thorax rounded. 



VIII. I'lIYMATOUES. 



(/(/. I'alpi about ecjual ; mesosternum obtusely triangular. 



IX. Callidium. 

 cc. Front coxa:^ at least moderately separated. 



e. Dorsal surface of thorax with narrow median elevation and 

 moderate or small ones on the sides; prosternum broad; hind 

 cox;Te inclosed. IIyi.otbupes. 



re. Dorsal surface of thorax with a broad, smootli. shining median 

 space on basal half; elytra with more or less distinct but 

 broken whitish markings. X. Merium. 



