1871.] 101 [Uhler. 



Following Dr. Erichson in Prof. Agassiz's Index Universalis, the 

 above spelling should be changed to Ptochomera. 



Plociomerus Amyot et Serv. (Autor). 



1. P. constrictus. 



Pamera constricta Say. Heteropt. p. 15, 1. 



Beosus abdominalis Guerin. La Sagra. Hist. Nat. He de Cuba. 

 p. 397. 



No. 122. " Harris Collection. "Milton, Aug. 15th, 1831." 

 This species extends from the West Indies to Canada. 



2. P. difiusus, n. sp. 



Closely allied to P. silvestris Linn. Dull black, minutely pubes- 

 cent. Head black, very minutely punctured, above with minute, 

 prostrate, yellowish pubescence, the face with a few long erect hairs ; 

 tip of the tylus piceous. Antennas honey yellow, tinged with piceous, 

 the apical joint and tip of third fuscous. Rostrum testaceous, more 

 or less obscured, the apical joint piceous. Pronotum with remote, 

 prostrate, white pubescence, and a few erect bristles ; the anterior 

 lobe dull black, smooth, very convex, much narrower than the pos- 

 terior lobe ; posterior lobe piceous, remotely punctured, the disk 

 with three pale lines ; humeral angles whitish, smooth. Pectus with 

 remote, prostrate, whitish pubescence; a spot above each coxa, 

 coxal tips, posterior edge of the nietapleurse, and legs, honey yellow; 

 the middle of the anterior femora, an indistinct band near the tip of 

 the posterior femora (and occasionally on the intermediate femora) 

 and tips of all the tarsi piceous. Scutellum dull black, remotely 

 punctured, clothed with remote, prostrate, whitish pubescence, the 

 tip testaceous. Hemelytra honey yellow, more or less tinged with 

 piceous, with whitish, prostrate pubescence, punctured in fuscous 

 lines, with a larger blackish spot upon the lateral middle, almost 

 touching the margin, and a smaller one at the exterior apical angle, 

 near the interior apical angle with a small white spot ; membrane 

 brownish, the nervules and a spot at tip whitish. Tergum black, 

 occasionally rufo-piceous on the disk ; the venter dull black, or 

 tinged with piceous, sericeous pubescent. Posterior margins of the 

 ventral segments sometimes piceous. 



Length, 5-|, 6\ millims. Humeral breadth, l£, li millims. 



No. 103. Harris Collection. " New Hampshire, Mr. Leonard." 



