370 REVISION OF THE TENEBRIONIOffi OF AMERICA, 



Thorax one-third broader than long, moderately convex, coarsely bul sparsely puuctured, anteriorly emargiuate, an- 

 gles no) prominent, base broadly sinuous, sides moderately rounded, gradually narrowing toward apex, margin 

 slightly reflexed. Elytra elongate oval, parallel, sub-depressed; with eighl entire and ;i short scutellar stria; striaB 

 punctured; interstices flat, very feebly and rather sparsely punctured. Bcueath ferruginous brown, sparsely bul 

 ely punctured. 



inch. 



The uppei surface is piceous black and shining, excepl the basal, sutural and lateral 

 margins of the elytra, the lateral and apical margins of the thorax and the epistoma, which 

 are ferruginous brown ; the under surface and legs arc similar in color, but paler. 



Occurs in Northern California and along the high regions of the Southern Sierras, 

 under bark in fungus. 



THARSUS, Lee. 

 Tharsus, Lee, Class. Col. N. A., p. -.'::::. 



For the present this genus is retained as distinct, differing however, by some slight 

 characters which are at present considered valid. The mentum is here trapezoidal, not 

 trilobed in front hut rounded, the anterior angles are slightly indexed and the middle Hat. 

 coarsely punctured, net promim nt. The last joint of the maxillary palpi is triangular, 

 nut securiform. The front tibiae as in Metaclisa, are similar, and the epipleurae short. The 

 hind tarsi are short, the first joint not equalling the second and third together. 



'I', scditiosus, Lee, New Species, p. 132. 



Resembles a small Uloma. For a description the student is referred to the rather re- 

 cent description of Dr. Leconte. 

 Length .20-.24 inch. 

 Rather abundant in the Gulf States. 



ULOMA, Cast. 

 Uloma, Cast., 111m. Nat. Ins. Col. II. 219. 



Easily distinguished from all our genera of the tribe, by its short epipleurae and di- 

 lated, denticulate anterior tibia;. The mentum is variable, frequently trilobed in front, 

 with the lateral lobes indexed. 



Our species are numerous. From their mode of life some species have become widely 

 diffused and almost cosmopolite. 



The following table will serve to aid in distinguishing our species: 



Lower edge of anterior femora feebly channeled along their entire length. 

 Epistoma feebly emarginate or truncate. 

 Fast joint oi antennae rounded at tip. 



Middle plate of mentum elongate oval; interatrial spaces 



of elytra entirely smooth. impressa. 



