1910] American Species of Platymetopius 219 



paler with the vertex of the female shorter and similarly lineated 

 with fuscous at apex. This variety, of which I have seen only 

 the types, is from Utah. 



3. Platymetopius majestus Ball. 



Eru. Xl'WS, XX. p. 1(34, 1909. 



A small l)ut very distinct species thus far reported only 

 from California. Its deep black face marked with a ' white 

 basal edge and concentric line, the large pale yellowish parabolic 

 vertex and the brownish iridescent and uninscribed elytra make 

 its identification easy . I have seen only the types which were 

 kindly loaned to me by Dr. Ball. 



4. Platymetopius elegans Van Duzee. > ■ 



Ent. Americana, vi, p. 94, 1890. ' 



In this species there is a broad yellowish dorsal stripe from 

 the middle of the vertex to the tip of the clavus. The corium 

 IS brownish-cinereous obscurely branded with whitish hyaline, 

 the cinereous areas are minutely inscribed with fuscous, . the 

 apical submargin and some of the adjacent nervures are heavily 

 embrowned and the clavus and disk of the corium are sprinkled 

 with obscure rufous dots. The lower surface is yellowish with 

 the base of the face cinereous and the angled pale line distinct. 

 The vertex of the female is about One half longer than the width 

 between the eyes. Length 5 mm. I have seen only the unique 

 female type which was from California but among my Florida 

 captures was one apparently scarcely mature specimen showing 

 a similar yellow dorsal vitta, which I cannot identify with this 

 species. It may represent a still undescribed form. 



5. Platymetopius acutus Say. 



Jl. Acad. Nat. Sci., Phila., vi, p. 306, 1831; Compl. Writinsjs, ii. p. 382. 

 Platymetopius magdalensis Prov. Pet. Faun. Ent. Can. iii, p. 275, 1889. 



This, our m^ost widel}^ distributed Platymetopius, seems to be 

 the stem form from which have branched off most of the closely 

 allied species found in this country, to all of which it is connected 

 by certain variable characters. Its tj^pical form, agreeing per- 

 fectly with Say's description, is found throughout the middle 

 and northern states but in one form or another it occurs from 

 the Atlantic to the Pacific coasts and from northern Quebec and 

 British Colum.bia to, or nearh^ to the gulf coast. The typical 

 form may be characterized as follows: 



Vertex in the male a very little longer than broad between the eyes, 

 in' the female distinctly lonEjer. Color: Vertex fulvous-brown finely 



