214 ENTOMOLOGICAL NEWS [XXXI, '2O 



There are only two bristles in the supra-alar region, one each side of 

 the sutural depression; two or three on the post-alar callus; one, strong, 

 on post margin of mesopleura. Hypopygium complicated; claspers with 

 numerous long bristles along the sublateral margin; between the bases of 

 claspers is a broad appendage with a rounded, laterally directed, tooth- 

 like projection. 



9. Similar. Wings generally darker, more blackish. Pile mostly 

 black; that on cheeks, base of proboscis, and on scutellum generally, re- 

 maining pale; it is also less abundant especially on the legs. Length 

 1 8 mm. 



I have examined the following material: I cf, Browns 

 Mills, New Jersey, June 15, (H. Skinner), [A.N.S.P.]. 2d", 

 East Falls Church, Virginia, July 1-8, (J. N. Knull), [Penna. 

 Dept. Agric.]. I 9 , Drumgold, Pennsylvania, July 16, (J. 

 G. Sanders), [Penna. Dept. Agric.]. I 9 , without data, [A.N. 

 S.P.j. 



Pogonosoma ridingsi new species. 



cf. Similar to dorsata but more robust. Mesonotum and scutellum 

 not shining but subopaque. Color of bristles and pile similar except on 

 the face where they are pale (yellowish not white) with several long black 

 bristles on the prominence medianly; of the scutellum and postcoxae, 

 black. The facial pile is more abundant than in dorsata, and along the 

 alar margin of the mesonotum and on the postalar calli there are numer- 

 ous black bristles, while the scutellum has some erect bristle-like hairs of 

 the disc. The vestiture of the pleurae is more abundant than in dorsata 

 and the pile on the fore legs is very dense, noticeably more so than on 

 the middle and hind legs. The wings, although probably they will show 

 much variation, seem to be fairly constant in having the fuscous clouding 

 confined to the veins, even those near the costal margin (none of the speci- 

 mens showing the density of dorsata). The hypopygium more robust, 

 similar in general form; but the appendage between the bases of tin- 

 claspers is tooth-like, not developed laterally into tooth-like lobes. The 

 bristles of the claspers are stronger and fewer in number. 



9. Similar, but as in dorsata the pile is mostly black, being pale 

 (brownish) on the cheeks only. The wings as in the male. Length 20 

 mm. 



Type. tf. Colorado, (J. H. Ridings?), [A.N.S.P. No. 

 6343]. Paratypes. I cf ; Florissant, Colorado, June 24, 1914, 

 82 (A. Champlain), [Pa. Dept. Agr.]. I cf ; El Paso County, 

 Colorado, August 5, 1911, (A. Champlain), [Pa. Dept. Agr.]. 

 I 9 ; Keddie, PI u mas County, California, July 4, 1918, (F 

 M. Jones), [A. N. S. P.]. 



