NORTH AMERICAN COLEOPTERA. 67 



Head yellow, occiput with a median piceous spot, surface irregularly coarsely 

 punctate. Thorax a little less than twice as wide as long, slightly narrower in 

 front, the angles slightly upturned, disc with a deep oblique impression each 

 side, transversely united across the middle, surface sparsely irregularly punctate, 

 color yellowish with the three piceous spots well developed ; scutellum piceous ; 

 elytra slightly broader behind the middle, surface relatively coarsely punctate, 

 inconspicously pubescent, color dull black, the entire margin from humerus to 

 apex yellow, disc on each side with a moderately wide yellow vitta, which grad- 

 ually narrows near the tip, and in some instances joining the apical yellow mar- 

 gin; epipleurse pale. Body beneath and abdomen nearly always piceous, ex- 

 cepting the pro- and mesosternum, and the middle of the metasternum. Legs 

 testaceous, the tibiae on the outer side and the tarsi brownish. Length .26— .36 

 inch.; 6.5—9 mm. 



Male.— l>a.st ventral segment with a broad, but very shallow emargination ; 

 tarsal claws widely bifid at tip, the inner division shorter and divergent from 

 the outer. 



Female.— Lsist ventral broadly semicircular, the margin entire; claws as in the 

 male. 



This species is one of those supposed by Crotch to be merely a 

 variety of tomentosa, but it seems abundantly distinct. The elvtral 

 punctuation is much coarser and less dense. The tarsal claws of tlie 

 male are deeply and divergently bifid. In the two characters men- 

 tioned the species approaches brevicollis, but differs from that species 

 in the less transverse thorax and pale epipleurce. 



Occurs on the Atlantic coast from Massachusetts to Florida, from 

 which point to Texas it is replaced by brevicollis. 



T. eanaclensis Kby., Fauna Bor. Am. iv, p. 219; Lee, Proc. Acad. 1865, 

 p. 219. — Oblong, similar in form to tomentosa. Antennae piceous, the basal joints 

 partly testaceous. Head yellow, with an oblong occipital piceous spot, surface 

 sparsely punctate. Thorax not twice as wide as long, slightly narrowed in front 

 sides arcuate, or very obtusely angulate, angles scarcely prominent, disc with a 

 vague oblique impression each side from the front angles to the middle of base, 

 surface sparsely coarsely punctate, color yellow, with the three piceous spots 

 usually small : scutellum piceous, sometimes partly pale ; elytra more yelloAv 

 than black, a narrow black sutural vitta extending nearly to apex a black vitta 

 from humerus, which becomes broader behind the middle, then narrower at 

 apex, incurving to join the sutural, disc densely finely punctured, not closely 

 pubescent; epipleuraj pale; underside of body yellowish testaceous, except a 

 slight darkening at the sides of metasternum and abdomen. Legs pale vellow 

 tarsi slightly darker. Length .28— .38 inch. ; 7— 9.5 mm. 



Male— Last ventral segment broadly, but not very deeply emarginate; claws 

 narrowly bifid at apex, the inner division shorter. 



Female.— Last ventral broadly semicircular; claws more deeply bifid, slightly 

 more divergent. 



The coloration of this species is remarkably constant even in the 

 most remote localities of its occurrence. The black vittje vary a 



TEANS. AM. ENT. SOC. XX. APRIL 1893 



