237 



spicuous Color piceous black, head rufous, clypeus black, posterior half 

 of pronotum and broad hind edge of the elytra white. Scutellum and base 

 of the elytra tinged with rufous; breast and legs, except the tibiae and apex 

 of the anterior and intermediate femora, pale ; antennas dusky. The male 

 has the tip of the clypeus and front, antennae, legs and breast soiled whitish 

 yellow. The pale margin of the pronotum is very narrow. The vertex and 

 base of the front are piceous and the elytra are paler, almost rufous. Length 

 about 2}4 m - m - 



Lancaster, N. Y. July and Sept, Described from a single pair. More 

 recently, June 1896, I took a fine female of this species at Hamburgh, N. Y. 



2 PISSONOTUS ATER, n. sp. 

 Van Duzee, Bui. Buf. Soc. Nat. Sci., V, p. 190, 1894. 

 Form and size of marginatus. Deep pitchy black, highly polished, 

 Elytra inclined to piceous-brown. Face piceous becoming more or less 

 navescent across the apex of the front and cheeks. Antenna:, legs, breast 

 and disc of the venter soiled honey yellow, anterior and intermediate tibiae 

 and apex of the posterior coxae embrowned. Length 3 m. m. 



Near Buffalo, N. Y. Described from a single female example taken on 

 Grand Island in Niagara River, Sept. nth, 1892. This species agrees with 

 marginatus in most of its characters and may prove to be but a black variety 

 of that form. 



Since the above description was prepared I have taken a pair of this 

 species at Hamburgh, N. Y. on the nth of July. To the characters given 

 I can only add that the base of the tergum shows indications of the paler 

 markings characteristic of the brown forms of this genus and the legs are 

 more deeply colored approaching piceous on the knees. The male is deep 

 black becoming a little pitchy on the elytra and head. The genital segment 

 is long; aperture of the pygofers more strongly constricted a little below 

 the middle and somewhat narrower than in marginatus, and the impressed 

 portion of the ventral wall is slightly elevated at either angle and produced 

 in a minute sharp tooth which is not noticeable in its ally. 



In both sexes the elytra are highly polished with the nervures indicated 

 by raised points, more conspicuous in the male, in which, also, the apex of 

 the elytra is touched with white at either angle. 



This is without doubt quite distinct from marginatus. It may be recog- 

 nized by the narrower front with the median carina prominent for its whole 

 length. In marginatus this carina becomes obsolete over the apex of the head. 



3 PISSONOTUS DELICATUS, n. sp. 

 Form of P. marginatus, but smaller with the front a little narrower. 

 Color pale honey-yellow; face marked with the usual piceous band which 

 covers the base of the clypeus and crosses the anterior coxae. Apical mar- 

 gin of the elytra white ; apex of the front whitish ; knees, tips of the tarsi, a 

 streak on the outer surface of the anterior and intermediate tibiae, and the 

 extreme point of the oviduct dark brown. Length 2^ m. m. 



California. Described from a single female specimen received from 

 Mr. D. W. Coquillett and captured near Los Angeles. 



