286 



REVISION OF THE TENEBRIONIDiB OF AMERICA, 



A. mnricatula, (Polocypli.) Leo., Ann. Lye. 5-1.29. Philolithus muricatnhis, Lao. Genres V., 158. 



Closely resembling the preceding in outline and structure of thorax, both have the 

 margin rather acute and slightly reflexed. There is no other than the marginal costa. 

 The elytra are covered rather sparsely with erect short yellow hairs. The legs are not 

 hairy. Found at San Diego by Dr. Lcconto, and at Dos Angelos by Mr. Gabb. 

 Length .45 inch. 



A. hi rant a, (Peleoyph.) Lee., Ann. Lye. 5-127. Pliilolithus hirsutus, Luc. Genres V., 158. 



Similar in outline to parallela. Thorax with an acute margin. Sides of elytra rounded, 

 without marginal costa. The whole surface; is clothed with erect yellowish-white pubes- 

 cence. The legs are also hairy. 



Found in the Colorado desert. 



Length .GO inch. 



A. hispidula, (Peleoyph.) Loc., Ann. Lye. 5-127. 

 Pliilolithus hispidulus, Lac;. Genres V., 158. 



Marginal line of elytra obtuse, elytra regularly oval, humeri rounded. Thorax broader 

 than long, sides rounded ; anteriorly cmarginate with acute angles, base truncate, angles 

 distinct, not prominent. Surface sparsely clothed with very short hairs. Color usually 

 dark brown. Found in Colorado and Maricopa deserts. 



Length .50 inch. 



A. luetata, black, opaque, elongate oval. Head very sparsely punctured. Thorax one-third broader than 

 long, cather widely and acutely margined, disc very feebly convex, sparsely punotured at middle, more coarsely and 



densely at the margin, sides strongly rounded, snb-angnlato at middle, apex deeply einarginate, angles acute and 

 prominent, base Insinuate, angles obtuse. Elytra, elongate oval, without marginal costa, humeral angles rounded, 

 surface very faintly sub-tricostate. Prosternum truncate. Length .08 inch. 



I place this species near angulatus, from the similarity in outline, particularly of the 

 thorax, and from the absence of any olytral marginal ridge. It is, however, very distinct 

 from any of our species, by the characters given. 



Occurs very rarely in Owens' Valley, Cal. 



A. angulata, (Peleoyph.) Lee, Ann. Lye. 5-127. Philolithus angulatus, Lac. Genres 5-158, pi. 50, fig. 'A, 

 Found heretofore only at San Diego, Cal. 

 Length 1.1 inch. 



A. lecontei, Horn, Proc. Ent. Soc. Sept. 10th, 1866, verbal remarks. 



Peleoyph. oostipennis | Lee., Proc. Acad. 1859, p. 76. 

 The thorax of this species is much broader than long, with the sides evenly rounded 

 and with acute margins. The elytra are elongate oval, frequently (especially in % ) sub- 

 parallel and with the sides nearly vertical. Each elytron has two distinct costa: between 

 the marginal and sutural. In some broadly oval ? ? there is a third costa between the 

 marginal ridge and the first dorsal costa. The species is, however, very variable. A va- 



