NORTH AMERICAN COLEOPTERA. 219 



them the surface sli,<rhtly qnadrate. Elytra slightly broader at mid- 

 dle. Hind tar.<i mucli longer than the tihia?. Outer spur of hind 

 tibia broad, witli translucent border, apex obliquely truncate ; inner 

 spur shorter, broad, squarely truncate. 



Female. — Antennal club small, lenticular. K})urs of hind tibiie 

 longer and more slender. Elytra broader behind the middle. Pos- 

 terior tarsi not longer than the tibia. Posterior legs much stouter 

 than in the male. 



Variations. — The color varies from rufocastaneous to dark 

 brown, almost piceous. The sculpture varies but little. 



The male is very like other robust species as crassissiina in form, 

 the female is more inflated posteriorly as in the females of the Eu- 

 ropean Geotrogus. The metasternum in both sexes is short, more so 

 in the female. 



Occurs in Texas, Waco (Belfrage), New Braunfels (Lindheimer). 



Group III, torta. 



This group consists of two species, the peculiar character being 

 found in the strongly curved and stout inner spur of the male hind 

 tibia. The clypeus is emarginate, not deeply, the border reflexed ; 

 last joint of palpi'' impressed ; the antennre are 10-jointed; the spurs 

 of the hind tibife are free in both sexes ; the last ventral segment 

 short ; hind tarsi distinctly shorter in the female. 



The two species are as follows : 



Large, robust, sculpture of surface well marked. luuer spur of male liiud tibia 

 inserted nearly at a right angle to the apex 5. torta. 



Smaller, not robust; surface comparatively smooth. Inuer spur of male liind 

 tibia inserted iu the axis of the tibia 6. liaiuata. 



These two s})ecies are from Texas. 



.'). Li. torta Lee— Oblong, slightly broader posteriorly, couvex, facies rather 

 robust, reddish-browu, moderately shining. Head moderately broad. Clypeus 

 distinctly emarginate, the margin reflexed, densely punctured, more coarsely in 

 the female, front similarly punctured. Thorax with sides arcuate, the margin 

 entire, crenate anteriorly, the disc rather closely and moderately coarsely punc- 

 tate. Elytral punctures rather coarser tluin those of the thorax and somewhat 

 more closely placed ; the surface somewhat rugulose, tiiediscal costse often nearly 

 wanting, sometimes feebly indicated. Pygidium closely and coareely punctate. 

 Metasternum moderately closely punctate, the hair rather long not dense. Ab- 

 domen coarsely, but not densely punctured over the entire surface, the punctures 

 less deep at the middle. Last joint of maxillary palpi fusiform, not impresseiL. 

 Claws strongly arcuate, the tooth smaller and intramedian % , larger and median 

 $ . Length .75 —.96 inch ; 19 — '21 mm. 



