148 GEO. H. HORN, M. D. 



spinous on the posterior edj^e, iu the last two these are replaced by 

 two oblique ridges which are spinulose. 



P. TRUNCATUS Beauv., occurs from North Carolina southward. 



P. VALGUS Fab. Texas. 



P. ILLATUS Lee. Arizona to Peninsula of California. 



P. CRiBROSUS Lee. Texas. PI. Ill, fig. 6. 



ACIfl^ODERA Esch. 

 A. lanatit n. sp. — Form moderately elongate, gradually narrowed from 

 base of elytra to tip, surface feebly bronzed, clothed with long white silken 

 hair. Front sparsely punctured. Thorax not wider than the elytra, gradually 

 narrowed in front, surface uniformly bronzed, moderately densely punctured, 

 punctures finer and less dense in front, median line feebly impressed, basal 

 impressions feeble. Elytra with striae of moderately coarse punctures, inter- 

 vals feebly convex, surface feebly bronzed with two nearly entire yellow vittae, 

 the one submedian the outer near the margin. Prosteruum trisinuate in front. 

 Abdomen very densely and moderately finely punctured (except the middle 

 of the first segment), and densely clothed with long white silken hair. Legs 

 fimbriate with long hair. Length .36 inch; 9 ram. 



From its trisinuate prosternum this species belongs to the division 

 of Acm. sinuatse as indicated Trans. Am. Ent. Soc. vii, 1878, p. 4, and 

 from the form and color of thorax must be placed near pubiventris in 

 the table on p. 5. It is abundantly distinct from any in the group by 

 the sculpture of the abdomen and the long silken hairs which clothe 

 the body and are sparse on the upper surface and quite dense beneath. 



One specimen, Kauab, Utah. 



CYMATODERA Gray 



C gigantea n. sp. — Elongate, piceous, feebly shining, sparsely clothed 

 with short erect hair. Head moderately coarsely jDunctate. Antennae moder- 

 ately long, longer than head and thorax, joints 3 — 11 subequal, second very 

 little shorter, color piceous, basal joint rufous. Thorax twice as long as wide at 

 base, apex broader than base, form subcylindrical^ slightly constricted before 

 and behind the middle, surface rather finely not densely punctate. Elytra 

 nearly twice as long as head and thorax and nearly twice as wide at base as 

 the thorax, gradually but slightly broader behind, narrowed at apical fourth, 

 the apices rounded, surface with rows of punctures arranged in pairs, coarser 

 near the base, becoming gradually finer toward the tip, intervals alternately 

 broader and sparsely punctate, apical fourth rather densely punctulate, color 

 piceous, apic>al fourth and a broad transverse band behind the middle reddish- 

 yellow. Body beneath rufo-piceous not densely punctate, sparsely pubescent. 

 Abdomen rufous, moderately densely punctulate. Legs rufo-piceous, sparsely 

 hairy. Length .82 inch ; 21 mm. 



Male. — Last ventral segment wider than the last dorsal, broadly emarginate 

 at tip, fifth ventral triangularly emarginate at middle. Last dorsal with a 

 feeble median impression near the tip, the latter broadly emarginate. 



This species must be placed near californica in the arrangement of 

 our species as indicated on p. 221, Trans. Am. Ent. Soc. vol. v. 



