H. F. WIt'KHAM. 169 



the disk by spaces usually equal to or greater than their diameters ; apices not in 

 the least truncate. Abdomen finely distinctly reticulate, sparsely punctate and 

 pubescent. Length 2.6 mm. 



The elytra are somewhat spread in the unique male type, but 

 evidently quite cover the abdomen ; the wings are seen to be large 

 and well developed. The fifth abdominal segment is broadly but 

 distinctly emargiuate, the posterior margin finely beaded. The 

 flanks of the prothorax beneath ai'e apparently brilliantly polished 

 under low power, though under high magnification they are seen to 

 be finely reticulate, with a few distant, regularly disposed, pubiferous 

 simple punctures. The type remains in my cabinet. I took it on 

 the flats adjoining the Virgin River, a few miles from St. George, 

 Utah, in July. A close search failed to disclose any other speci- 

 niens of the genus in the neighborhood. 



T. mormon u.sp. — Smaller and less depressed than usual, parallel, opaque, 

 blackish piceous, pubescent, antenuse and legs reddish brown, elytra with large 

 basal and subapical pale spot on each. Head subquadrate, truncate and broadly 

 emarginate at base, tempora very slightly divergent posteriorly, faintly arcuate, 

 about as prominent as the eyes; upper surface distinctly strongly but finely re- 

 ticulate, variolate punctures shallow but numerous, mostly separated by a dis- 

 tance much less than their own diameters, basal median impression distinct but 

 not deep. Prothorax of the usual form, slightly narrower than the head and 

 similarly but more deeply punctured, collar and basal marginal bead strong. 

 Elytra conjointly broader than the prothorax, fiot covering the abdomen, sub- 

 parallel, not connate, apices distinctly subtruncate and dehiscent. Punctuation 

 double, as usual, craterform punctures not very well differentiated in either sex, 

 though more so in the male, where they are close, almost approximate. Pubes- 

 cence short, sparse, longitudinally directed. Abdomen alutaceous, sparsely punc- 

 tured and pubescent. Legs moderate. Length 2.55 mm. 



The type is a female, collected by myself on the flats near Utah 

 Lake, in the vicinity of Provo, during June. With it are associa- 

 ted two males from the same source. In the latter sex, the fifth 

 ventral is feebly broadly emarginate behind, as usual. Some varia- 

 tion is exhibited in the series, the depth of color not being uniform. 

 In one specimen, the elytra are entirely dark, except a small sub- 

 humeral and apical pale spot on each. The type remains in my 

 collection, a cotype has been placed in the U. S. Nat. Mus. 



T. inyo n. sp. — Subparallel, rather depressed, slightly shining, head and 

 prothorax rufo-testaceous, legs and antennse paler, the elytra, excepting an 

 indefinite reddish basal space and occasionally a subapical spot, blackish. Abdo- 

 men and metasternum also blackish. Pubescence whitish, sparse, less so on the 

 elytra, where it is seen to be of two lengths intermixed. Head subquadrate, 



TEANS. AM. ENT. SOC. XXXII. (22) .JUNE, ]9()(). 



