lit O. H. HORN, M. D. 



T. foveieolliK. HiroM, loc. cit. p. 181. 



Ovate. Clypeus at middle subanj^ulate, head obtusely 4 tuber''ulate. 

 Sides of thorax irregularly arcuate, base narrowed, disc with median 

 ridges strougly siiuious, approximated at middle, united with a trans- 

 verse ridge, dividing the sulcus into two foveac, at base, on each side 

 an elongate elevation joining the middle of the median ridges and en- 

 closing a fovea, along the apex on each side a transverse fovea. Kly- 

 tral tubercles moderately well developed and at their summits erect 

 scale-like seta;, intervals with a very few smaller tubercles, punctato 

 striate and somewhat rugulose. Prosternal process subacute. An- 

 terior tibinc with small marginal tooth near the angle. Hind femora 

 mutic. Prosternal process in form of an acute tubercle. Length .20 

 ' — .24 inch ; 5^6 mm. 



The middle and hind tibiae have a slight tooth on the outer margin 

 near the middle tipped with several short spinous hairs, 



1 have before me a specimen that purports to be typical, bearing 

 the label in the writing of Harold, which does not, to my mind, agree 

 with that author's description and in fact is merely a specimen of 

 frrrcsfris and which Dr. Leconte informs me was the subject of dis 

 cussion at the time it was received by him from that author. 



In their superficial as^pect /vveicoUis and terrestris diifer nearly as 

 much as erinaccuH and nordidus, for while the former in each case has 

 erect scale-like setae, the latter has short scales scarcely at all erect. 



Occurs in Illinois, Missouri and Kansas. 



T. terrestris. Say, Journ. Acad. 1825, p. 192; Lee. Proc. Acad. 1854, p. 

 212; Harold, loc. cit. p. 179. 



This species and the preceding, as may be inferred from the above 

 remarks, are very closely allied, and the only points of difference are 

 that the tubercles in the present species have short scales, the sides of 

 thorax less rounded, more decidedly convergent in front and scarcely 

 at all narrowed at base. The large majority of the specimens are also 

 smaller than those of the preceding species varying in length from 

 .20— .24 ; 5—6 mm. 



Occurs in New Jersey, Pennsylvania and the Gulf States, very 

 rarely west of Ohio. 



T. feqiiuliM, Say, New Spec. Ins. Louisiana, p. 5, 18.32; Am. Eiit. edit. Lee. 

 i., p. .301 ; Lee. Proc. Acad. 1854, p. 21."?; Harold, loc. cit. p. 185. 



Form elongate subovate. Clypeus rounded, head densely punctured 

 and with a line of rufous set;B in form of an Inverted " w." Sides of 

 thorax moderately and e(|ually arcuate, hind angles nearly rectangular. 



