THE LOXG-ilOEXED WOOD-BORIXG BEETLES. 1069 



qualdnf;- aspen and cotton -wdod { I'njmlus), both of which are fairly 

 common in thnt area. One of the largest and most striking mem- 

 bers of the family- in our fauna. 



Tribe IV. ACAXTIIODERINI. 



Small or medium-sized, rather bruad and usually somewhat flat- 

 tened species, having the front large, quadrate, vertical; palpi slen- 

 der ; elytra rounded or truncate at tip ; front coxal cavities rounded, 

 closed behind; legs moderate, femora usually strongly club-shaped, 

 middle tibias with a tubercle on the outer margin; tarsal claws di- 

 varicate. The color is dull, usually black marked with gray, and 

 the beetles are found on tlip trunk.s or limbs of trees. Of the 1-^ 

 genera composing the tribe, eight are known to be represented in 

 the State, while another probably occurs. 



KEY TO INDIANA GE^XEEA OF ACANTHODEEINI. 



a. Basal joint of autennai clnb-shaiied ; thorax with dorsal tubercles and 

 large acutc^ sjiiue near the middle of each side. 



L^'I. ACANTHODERES. 



00. Basal joint of antenna; cylindrical ; spine on side of thorax, if present, 

 behind the middle. 

 T). Females without elongated ovipositor. 



c. Thorax feebly tuberculate or angulate at the sides a little behind 

 the middle; mesosternum broad. LVII. Leptostylus. 



cc. Thorax distinctly angulate, or more frequently with an acute tu- 

 bercle or short spine behind the middle ; mesosternum triangular 

 or narrow. 

 (?. Antennse without traces of fringed hairs beneath ; first joint of 

 hind tarsi as long as the next two. 

 c. Form somewhat flattened ; presternum narrow but not linear ; 

 body without erect hairs. LVIII. Liopus. 



PC. Form cylindrical ; presternum linear ; elytra with erect hairs. 



LIX. Dectes. 



(](1. Antennas distinctly fringed beneath with hairs; first joint of hind 



tarsi as long as the next three. 



/. Elytra without a carina on each side, usually with transver e 



angulated markings. LX. Leptirges. 



ff. Elytra each with a distinct carina on the side, their surfar-c 



marked with numerous small black spots. 



LXI. Hyperplatvs. 

 hlh Females with elongated ovipositor. 



(I. Biidy above with erect hairs mixed with the jiubescence. 



/;. .\ntenniE not much louKcr than the body and without fringed 

 liairs beneath except feelily on the tirst joint; mesosternum 

 broad. LXII. Graphisi'rvs. 



