UHLER ON INSECTS. 389 



Length 5 millimeters. Widtb at base of prouotumS millimeters. 



Inhabits Mexico. One specimen from Arizona. 



This species reserhbles our Ehytidoporiis, but the generic characters 

 given above will abundantly serve to separate it. 



The descriptions of the following species, unknown to me otherwise, 

 are here included to complete the group as far as the literature of the 

 subject is known to students in America. 



Probably when specimens of them are properly examined, they will 

 prove to belong to the present genus, in which, for the present, we place 

 them with a query. No doubt, most, if not all, of thera will yet be found 

 in our western Territories and in Texas. 



5. P. ffusifonnis. 



JEthus fasiformis Walker, British Museum Catal., pt. i, p. 158, No. 20. 



"Black, fusiform, slightly convex and shining, with hardly any bristles. 

 Head hardly punctured, transversely and very slightly rugnlose, about 

 half the breadth of the thorax. Eyes bright red. Antennfe less than half 

 tbe length of the body ; first joint red at tip ; second a little longer than 

 the third ; fourth much longer than the third ; fifth a little shorter than 

 the fourth. Thorax with a few large punctures along each side, and 

 ■with an indistinct transverse furrow, which is obsolete on each side and 

 is accompanied by a few large punctures. Scutellum with a few large 

 punctures, its breadth at the base much shorter than its length. Legs 

 robust ; tibice with stout spines. Fore wings dull, thinly and minutely 

 punctured, more largely punctured along the hind border; membrane 

 piceous." 



Length of the body 5^ lines. 



Inhabits Orizaba, Mexico. 



6. P.ffortis. 



jElhus fortis Walker, British Museum Catal., pt. i, p. 151, No. 21. 



"Black, robust, elliptical, shining, slightly convex, beset with stout 

 bristles along the sides of the head and of the thorax. Head more than 

 half the breadth of the thorax, almost smooth, except some oblique stria3 

 on each side in front. Eyes black. Eostrum reddish. Auteunne tawny, 

 about one-third of the length of the body ; joints from the second to the 

 fifth slightly and successively increasing in length ; third and fourth 

 joints blackish, except toward the tips. Thorax almost smooth, with 

 a distinct transverse furrow very near the fore border, and with an in- 

 distinct longitudinal furrow, which extends from the transverse furrow 

 to one-thirtl of the length. Scutellum thinly punctured, very much 

 longer than its breadth at the base. Legs thick, and with stout spines ; 

 tarsi reddish. Fore wings smooth, with two stria? near the eosta and 

 two near the hind border; membrane white, hyaline." 



Length of the body 3j- lines. 



Inhabits Oajaca, Mexico. 



