Horn.] OPHRYASTIXI. 45 



posterior) distinctly but feebly mucronate. Articular surfiices of liind 

 tibioe distinctly cavernous. Claws moderate, free. 



It is not without doubt that I consider the genus before me identical with 

 Mimetes. The thorax is provided, in well preserved specimens with the 

 post-ocular thoracic fimbriae characteristic of the Tanymecides of Lacor- 

 daire. These hairs are however very easily removable, and it is possible that 

 Lacordaire may have had a specimen before him similar to one now at hand. 

 The present species has been submitted to Mr. H. Jekel, who agrees with 

 me in placing it near Amomphus and its allies. The mandibles have no 

 prominent support for the deciduous piece. In addition to the characters 

 given in the table, this genus has a much less robust rostrum and the fron- 

 tal impression is between the eyes and not at a distance in front as in 

 Orimodema. 



M. setulo3US Lac. Gen. Cure, vi, p. 40. 



Form oblong oval, surface densely covered with cinereous scales, varie- 

 gated in some specimens with white and pale cupreous. Head and rostrum 

 longer than the thorax, densely punctured and scaly. Antennse rufous, 

 sparsely pubescent. Thorax, cylindrico-oval, slightly narrower and feebly 

 constricted in front, sides moderately arcuate, base truncate, disc feebly 

 convex, densely punctured and densely covered with cinereous scales. Ely- 

 tra oblong oval, nearly twice as long as wide, sides moderately arcuate 

 and feebly attenuate behind, base broadly emarginate ; disc feebly convex, 

 finely striate, strife not closely punctured, intervals at sides feebly convex 

 and at apex slightly alternating, surface densely scaly, on each interval a 

 row of short, distant, semi-erect set*. Body beneath densely scaly and 

 very sparsely hairy. Legs moderately densely scaly, tibite more distinctly 

 pilose especially on the inner side. Length .22 inch ; 5.5 mm. 



Occurs at San Diego and San Buenaventura, California. 



M. seniculus, n. sp. 



Form elongate oval, surface densely covered with intermixed and pale- 

 brown scales very densely placed. Head and rostrum as long as the thorax, 

 densely scaly and with fine short whitish hairs. Rostrum with feeble 

 median impression in front and an angulate impression at base between the 

 eyes. Thorax oval, longer than wide, sides moderately arcuate, a slight 

 constriction at the sides behind the anterior margin, apex and base trun- 

 cate, disc feebly convex densely scaly, scales pale -brownish, a whitish 

 median line. Elytra oblong oval nearly- twice as long as the thorax, and 

 one-half wider at middle, moderately convex, densely scaly, scales pale- 

 brown and cinereous irregularly clouded, surface faintly striate, striae feebly 

 punctured, intervals flat, with a single row of short whitish hairs. Body 

 beneath similarly scaly, scales decidedly pearly and with more evident 

 hairs, especially at the middle of the posterior portion of the first ventral 

 segment (^. Legs pale-brownish, similarly but more sparsely scaly 

 Length .14 inch ; 3.5 mm. 



One specimen California (Motschulsky) ditfers from the pr^eding species 

 by its smaller size, more slender form and flat elytral interstices. 



