191()J American Species of Platymetopiiis 229 



21. Platymetopius obscurus Osborn. 



Ohio Nat. v. p. 274, 1905. 



This species very closely resembles iicntus in size, color, 

 markings and shape of the vertex. The face however is ful- 

 vous-brown, coarsely irrorate with paler; the valve of the male 

 is more angled, the plates are smaller and the hind edge of the 

 last ventral segment of the female is more transverse and angled 

 on either side. Length 5 mm. 



Described from New York, Pennsylvania and Ohio. Mr. 

 Palmer found it abundant at Lake Temagami, Ont., and 

 Quinze Lake, Quebec. I took it at Sharon and Ipswich, Mass., 

 and have examined others from Georgia. 



22. Platymetopius osborni n. s]). 



Near brevis l^tit larger with a shorter vertex. Length 4 to 4 1-2 mm. 

 Vertex scarcely longer than its basal width; anterior margin rounded, 

 the angle at a]3cx liardly indicated. Front broader than in brevis, 

 its sides parallel or nearly so to the su]3crior tip of the lora, then 

 abruptly narrowed to the clypeus. Genital characters substantially 

 the same as in the allied species except that the last ventral segment of 

 the male is shorter and the py gofers are longer, surpassing the plates. 

 Last ventral segment of the female distinctly angled at about the middle 

 of the latero-posterior margins where they are practically rectilinear in 

 brevis. Color about as in brevis becoming paler in some females. 

 Vertex fulvous-brown varied with darker, base with four pale marks; 

 a line adjoining the eye and the broad apex ivory-white, the latter inter- 

 rupted by a median vitta forked at apex and a small broken spot half 

 way between this and the black ocelli. Face irrorate with fuscous points 

 which become confluent on the front and base of the cheeks and omit 

 the sides of the clypeus, a vitta on the lorai and another on the cheeks 

 above its suture; pale angled line on the base of the front reduced to a 

 small transverse spot less conspicuous than in brevis. Pronotum rather 

 dark with the five pale vitta> distinct. Scutcllum tinged with fulvous 

 with a deeper fulvous mark within the lateral angles, the margin with 

 five white spots. Elytra with strong nervures and recticulations, the 

 latter forming a longitudinal median vitta in the anteapical areoles; 

 apex infuscated with the extreme edge white as far as the outer areolc; 

 costa crossed by about ten oblique veinlets; the white areolar spots 

 distinct. Beneath and legs varied with pale and fuscous; the disk of 

 the pleural pieces and base of the venter infuscated. The female is 

 l)aler but with all the markings indicated. 



Described from one female and two males from Prof. 

 Herbert Osborn and taken at Los Amates, Guatemala, January 

 17th and February 28th, 1905, by Prof. J. S. Hine. This can 

 be confused with no species but brevis from which it may be 



