974 FAMILY L. ROA-RA 



densely and moderately coarsely punctate; front more coarsely punctate. 

 Thorax widest at middle, obtusely angulate, distinctly narrowed at base; 

 margin crenate, sparsely ciliate, punctured as described in key. Elytral 

 punctures finer than those of thorax, very dense, rugulose near the suture; 

 submarginal costa distinct on apical half. Hair of metasternum long and 

 dense, male, very short, female. Male with antennal club a little longer 

 than stem ; fifth ventral deeply and transversely depressed behind the mid- 

 dle, with an oblique elevation each side of the concavity; last ventral con- 

 cave, smooth, the apex broadly and triangularly emarginate, the notch filled 

 by a membrane. Length 18-22 mm. (PI. IV, figs. 397, 390; pi. V. fig. 404, 

 larva.) 



Throughout the State ; frequent. May 19-October 15. Smaller 

 and usually paler than the next species. 



1820 (10,252). LACHNOSTERNA HOKNII Smith. Entom. Arner., V, 1889, 95. 



Oblong-oval, robust, not broader behind. Deep blackish-brown or pic- 

 eous, shining. Clypeus rather deeply emarginate, more acutely in female, 

 its surface coarsely and densely punctured. Thorax distinctly narrower in 

 front, the sides obtusely angulate, widest just behind the middle, thence nar- 

 rowed to base, margin feebly crenate. surface punctured as described in key. 

 Elytral punctures finer, much more dense, somewhat rugulose, the costa' 

 narrow but distinct. Male with antennal club slightly longer than funicle; 

 last ventral with a quadrate punctured impression, the hind margin with a 

 small, deep notch ; fixed spur short, less than half the length of outer. 

 Length 19-21 mm. (PL IV, fig. 395.) 



Vigo, Lawrence and Crawford counties; scarce. May 1-June 

 10. A species of southern range. Near Wyandotte Cave it was 

 locally common on May 17, beneath logs on wooded slopes. Known 

 from Tennessee, Ohio and Virginia. 



GROUP D. 



Small or medium-sized species having the antennae nine-jointed ; 

 clypeus emarginate; inner spur of hind tibia? of male fixed and at 

 least half as long as the outer one. Three species have been taken 

 in Indiana, while two others perhaps occur. 



KEY TO INDIANA SPECIES OF GROUP D. 



a. Body with erect hairs rather sparsely placed; form moderately elongate. 



the sides parallel. 



?). Inner spur of hind tibia? of male distinctly shorter and stouter than 

 the outer one. HIBSUTA. 



bb. Inner spur of hind tibia* of male fully as long and scarcely stronger 

 than the outer; elytra with distinct lines of longer hair. 



LONGISPINA. 



<i<t. I-iody above entirely glabrous, with the exception of erect hairs on the 

 head. 



