8 G. n. HORN, M. D. 



T. K<'ni"inIa(iiH, n. sp. 



Oblong, moderately robust. Clypeus obtusely rounded, bead 

 coarsely punctured. Antennae dark brown, club fuliginots. Tborax 

 more than twice as wide as long, sides moderately arcuate, disc longi- 

 tudinally sulcata, sulcus interrupted at middle. Sutural row of tuber- 

 cles small, the others strongly elevated, each tubercle elongate, those 

 of the second and third rows forming a continuous ridge at basal third, 

 at summits with short, pale rufous scales. Elytral margin serrate in 

 in its entire extent. Prosternal process in form of an elongate tuber- 

 cle. Hind femora spinulose posteriorly. Anterior tibiae serrate at 

 base, unidentate below the middle of the outer margin. Length .40 

 — .44 inch; 10 — 11 mm. 



The facies of this species is such that it never would be confounded 

 either with tKhercnkitus or Sonorse, being more robust, with broader 

 thorax and and with its tubercles strongly elevated, much more so, in 

 fact, than in any species in our fauna. 



Specimens have been sent me by Mr. H. Edwards, of San Fran- 

 cisco, collected at San Diego. This species has been long known to 

 us under the above name in the cabinet of Dr. Leconte. 



I cannot find that it has been described, and I retain the name 

 under which we have known it to avoid confusion. 



T. i«ionor9C, Lee. Proc. Acad. 1854, p. 211 ; alternans \\ Lee. loc. cit. p. 212; 

 Lerontei, Harold, loc. eit. p. 156. 



This species closely resembles tithrrculafits^ and differs in having the 

 elytral tubercles less elevated and covered with short, pale rufous scales. 

 The intervals have smaller tubercles, less evident at middle and also a 

 double row of punctures, and near each puncture two small granules. 

 Elytral margin finely serrate. Presternum, anterior tibiae and pos- 

 terior femora as in tvberculatus. Ijength .32 — .40 inch; 8 — 10 mm. 



I cannot find that T. Sonorse difiers at all from that which we have 

 known as a/lernans, and therefore drop the latter name (being preoc- 

 cupied) and also that which Harold has given in its stead. 



Occurs in Kansas, Texas and Arizona and the adjoining regions of 

 Mexico. 



T. crinacen^i, Lee. Proc. Acad. 1854, p. 212; Harold, loc. cit. p. 180. 



This species resembles tubp.rcufatus very closely but is rather more 

 robust in form. The clypeus is more distinctly angulate at middle 

 and the front with two setigerous spots. The median sulcus is feebly 

 interrupted. The elytral tubercles are feebly elevated but clothed at 

 summits with erect black setae, the intervals have smaller tubercles 



