126 [Jii'^e, 



anteriorly on each side on a level with the insertion of the antennae with 

 a elavate, scale-clad appendage. Wings greyish-black or black-brown, 

 with a large basal patch, a spot at the end of the axillar nervure, and a 

 narrow transverse fascia from opposite the end of the subcosta to the end 

 of the anal nervure, of whitish and for the most part bristling hairs. 

 Fringe glossed like the dark fringes in the last two species. Wing, 3 to 4 

 (Chesil, Portland, 1'8) mm. long 18- P. notabilis, sp. nov. 



a — Apex of wing ellipsoidal, subacute at or close to the end of the praebrachial 

 nervure. Antennae in ^ reach to a little beyond the insertions of the 

 wings ; the first two joints moderately stout, short ; the other fourteen 

 joints moniliform with subglobular nodules, mostly at rather long in- 

 tervals and with cupuliform verticils of hair ; basal joint (denuded of 

 scales) compressed, rather longer than broad, tapering downwards 

 slightly ; 2nd joint globular, contiguous with the 3rd, and nearly as stout 

 as the 1st. Radius forked opposite the pobrachial fork, ending in the 

 anterior basal cell at a distance from the cell's end equal to the cell's 

 apical width. Wing spotless, dark, 2'5 to 3 mm. long 



19. -P. ambigua, sp. nov. 



5 — (3a) Subcosta ends opposite the end of the postical nervure or very nearly so. 



Antennae in $ almost as in P. amhigua, but with shorter intervals be- 

 tween the nodules. Radius meets the anterior basal cell at a distance 

 from the cell's end rather less than the cell's apical width. Wing 

 spotless, dark, 2 to 2"5 mm. long 20. P. decipiens, sp. nov. 



a — Subcosta ends opposite the end of the anal nervure 6. 



6 — (5a) Antennae in $ reaching to the base of the wing ; first two joints moderately 



stout, the former oblong, the second globular, both densely clothed with 

 appressed hairs and scales, but the first with spreading hair in front ; 

 the other fourteen joints moniliform with globular nodviles at moderate 

 intervals and (excepting the last, which is closed) cupiliform verticils of 

 hair, each verticil (with the same exception) containing a pair of long 

 chitinous compressed bristles inserted on the nodule near each other 

 with the hairs, and widely coiled subspirally within the verticil in oppo- 

 site directions. The ending of the radius is rather less than the cell's 

 apical width from the end of the anterior basal cell. Wing blackish- 

 grey, fading to dark brownisli-grey, with a black hair-spot at the radial 

 fork, opposite another on the posterior branch of the pobrachial and the 

 postical nervures, and also with a few black hairs near the end of the 

 axillar nervure ; tlie bristling hairs from certain standpoints become 

 whitish-grey ; fringes match the disc, except in the apical region, where 

 the hairs are glossed towards their tips with impure whitish, their roots 

 remaining dark. Wing, 2 to 2'5 mm. long .. 



21. P. soleata (Haliday, MS.), Walker. 



a — Antennae in S reaching nearly to the middle of the wing ; the first two 

 joints moderately stout, the 1st with moi-e hairs than scales, some of 

 them spreading in front, elongate, claviform, slightly compressed, about 

 one-sixth the length of the antennae ; 2nd joint globular, with appressed 



