i-.«_/^> VJ-J-i 



BORING BEETLES. 



1011 



IsTu (5'J.j8>. oim-iosoMA bbuxnbum Forst, Xov. 

 Spec. Ins., 1771, 37. 

 Elongate, iiarallel. Uniform light chestnut- 

 brown, shining. Head with a deep impression be- 

 tween the antenn.e. Thorax more than twice as; 

 wide us Ions, each side with three sharp teeth. 

 Elyti'a eacli with three fine raised- lines, surface 

 fiuel.v and rather thickly punctured. Fifth ventral 

 sejinient rounded in female, broadly truncate in 

 male, leaving the sixth visible. Lentjth 22-40 mm. 

 (Fife'. i-S-i.) 



Throughout the State ; freiiueiit. June :i!)- 

 August 14. Often enters houses to which it is 

 attracted Ijy light. The larvfe are supposed to 

 live only in pine, Ir.it evidently feed on oak 

 and walnut trees in Central Indiana, -ivhere pine are absent. 



Hg. 423. Natural dze. 

 (After Riley.) 



II. Prioxts Geoff. 1764. (Gr., "a saw.") 



Very lar^ic, broad forms having the antennal joints conical, 

 stout and overlapping in male; more slender and subserrate in fe- 

 male; the surface of the fourth and following joints covered with 

 fine, reticulate, <.-levated lines bearing special sense organs; thorax 

 Hrined each side with two or three sharp teeth; elytra broadly 

 rounded at apex, pumtate and ornamented -with raised lines. Three 

 of the six recognized species occur in the State. 



KEY TO I^DIA^■A SPECIES OF PEIONUS. 



a. Antennal joints 12 ; soles of hind tarsi densely pubescent. 



h. Elytra at base not wider than thorax; all 



.joints of hind tarsi densely pubescent 



beneath. 1870. i^ticollis. 



bij. Elytra at base wider than thorax; basal 



joint ni' hind tarsi nearly smooth. 



1877. POCULARIS. 



f/a. Anteinial joints 16-20; soles of hind tarsi 

 with scattered hairs. 1878. imbeicobnis. 



is7i; 



( .',1I.".0 ) . 



I'l.ie.Nis l.ATicoLLis Drury, 111. 

 Xat. Hist, II, 1773, 83. 

 Broad, stout. I'iceous black, shining. An- 

 teimiB of male lor.^er than body ; of female about 

 one-lialf llie len^lli. Thorax tilmost or quite as 

 broad as the buse of elytra. sidi'S with three 

 teeth, the hindmost one often indistinct; these 

 sometimes slightly reflexed. Elytra broader at base than apex; each with 

 three slightly elevated lines; surface roughly, coarsely and very irregu- 



Fig. 424. Female. Xutural size. 

 (After LeBarofi.; 



