1S82.] Oiji [Jayne. 



Vin'iefy b. Tlie pubescence on the elytra is cinereous, faintly mottled 

 with black. This form is smaller and more slender than the preceding, 

 and was described by Dr. LcCoute under the name rattus. I cannot, 

 however, see anatomical characters by which it can be distinguished, the 

 color of the pubescence not being sufficient, as all gradations through the 

 first variety, up to a typical munnus are to be found. 



Occurs in the Middle and Western States. 



D. talpinus Mann. Elongate, convex, black, clothed with fine black 

 recumbent hairs. Elytra black, covered Avith black pubescence, which is 

 mottled with coarser ochre and gray. Head coarsely punctate, pubescence 

 long, semi- erect, variegated. Antenna; fuscous. Thorax convex, anterior 

 part of lateral margin not visible from above, sides arcuate; a not very 

 distinct depression on base, finely and densely punctate, covered with 

 bunches of variegated hairs. Scutellum clothed with coarse, recumbent, 

 golden-yellow pubescence. Elytra black, densely and finely punctate, 

 marked by a few faint striae, pubescence black, marmorate with very 

 small, transverse spots of ochre and gray. Body beneath clothed with 

 long, recumbent, grayish- white pubescence, and a single series of lateral 

 black spots on abdomen. Last segment entirely black, except two faint 

 white spots, at base, on each side of median line. Legs clothed with brown 

 pubescence ; femora annulated at middle with white. Length .26 inch ; 

 6.5 mm. 



This species is to be distinguished from the foregoing mottled forms, by 

 the almost black color of the pubescence on the elytra, and by the con- 

 spicuously yellow scutellum. 



Occurs in the Pacific States. 



D. sobrinus Lee. Elongate, convex, black, covered with short, sparse, 

 fuscous pubescence. Elytra uniformly black, pubescent. Head mode- 

 rately coarsely and densely punctate. Antennne testaceous. Thorax 

 convex, anterior part of lateral margin not visible from above, sides sud- 

 denly narrowed at middle, a very faint depression at middle of base, hind 

 angles prominent, faintly and densely punctate, entirely pubescent. Scu- 

 tellum densely punctate. Elytra finely and densely punctate, faint striae 

 just apparent, pubescence sparse and unicolored. Body beneath covered 

 with long, dense, white, recumbent pubescence. Abdomen marked by 

 two lateral and two sub-median longitudinal rows of spots of black pubes- 

 cence. Legs clothed with dense brown hairs ; femora annulated at middle 

 Avith white. Length .32 inch ; 8 mm. 



The distinguishing characters of this species are found in the convex 

 thorax, the uniform color of the pubescence on the upper surface, the four 

 rows of abdominal spots and the annulated femora. Occurs in Texas — one 

 specimen in Dr. LeConte's cabinet. 



D. mucoreus Lee. Elongate, moderately convex, black, clothed with 

 sparse black and cinereous pubescence. Elytra black, with a broad irregular 



