Coleopterological Notices, VII. 549 



The three species of the United States, which are represented 

 in the material before me, may be readily separated as follows : — 



Labrum broadly sinuato-truncate at apex. 



Third joint of the maxillary palpi very mtich shorter than the fourth ; ab- 

 domen bristling with long erect setse toward tip ; anterior and intermedi- 

 ate tarsi strongly dilated toward base in the male ( Eumitocerus ) . 



tarsalis Csy. 

 Third joint nearly as long as the fourth ; abdomen with but few erect setiB 



toward tip pilicornis Gyll. 



Labrum larger, subcircularly rounded, narrowly sinuato-truncate at the mid- 

 dle of the apex ; third palpal joint quite elongate, though distinctly shorter 

 than the fourth ; abdomen without erect setae toward tip. 



lativentris n. sp- 

 Of the last two species only females are accessible to me at 

 present, Tarsalis is rare on the Pacific coast north of San Fran 

 Cisco ; it is the smallest of the three. Pilicornis is represented 

 by two specimens, taken some years ago near New York City by 

 Mr. H. H. Smith, and ma}^ be a recent importation. The third 

 species is much the largest and broadest, and is described below. 



T. lativentris. — Stout, elongate-elliptical in outline, moderately con- 

 vex, blackish, the elytra feebly rufescent ; legs and antennse blackish-piceous, 

 the^first two joints of the former, tarsi and trochanters paler ; pubescence rath- 

 er long, moderately dense ; surface finely reticulate throughout, shining, rath- 

 er'finely, subasperately and not very densely punctate throughout. Sead 

 triangular, much wider than long, evenly convex, the eyes basal, convex and 

 finely setose ; antennae inserted far before the eyes at the sides within a large 

 concavity, the foramen adjoining the sides of the scarcely differentiated cly- 

 peus ; they extend fully to apical third of the elytra, the first two joints stout, 

 each with one or two long erect setae; remaining joints extremely slender, 

 setose, the outer joints gradually somewhat thickened. Protliorax % wider 

 than long, the apex truncate, % as wide as the base, the latter transverse, with 

 the sinuation before the scutellum very j)ronounced ; disk broadly convex, 

 widest slightly behind the middle, the sides evenly rounded ; surface feebly, 

 obliquely subdeplanate toward the sides posteriorly. Scutellum rather small, 

 triangular, asperate, nearly as long as wide. Elytra shorter than wide, % 

 longer than the prothorax, and, at apex, distinctly wider ; sides feebly oblique 

 and nearly straight ; apex broadly, angularly emarginate ; disk broadly im- 

 pressed at the suture behind the scutellum. Abdomen, when contracted, only 

 14, longer than the elytra and fully as wide, ogival in form, the sides evenly 

 rounding throughout ; apex of the fifth segment scarcely % the maximum 

 width ; segments short and subequal throughout ; border moderate in depth. 

 Legs slender, the femora slightly thickened ; tarsi slender throughout. Length 

 2.8 mm. ; width 0.85 mm. 



Colorado (Colorado Springs, 6,000-7,000 feet; June). Mr, Wick- 

 ham. 



