Jiuio, 18113. 125 



half the length of the former, very slender and claw-like, slightly 

 decurved towards the tip. Wing, 2-25 to 3 mm. long , . . 



16. P. ocellaris, Meigen. 



a — Anterior basal cell not quite three-tenths the length of the wing, met by 

 the I'adius at a distance of one and a half its own apical width from its 

 end ; stem of the pobrachial fork almost twice the length of the difference 

 between the two basal cells, and one and one-tenth the length of the 

 stem of the radius. Legs chiefly black and white ; femur and tibial 

 fringes glossed with whitish ; tibia blackish at the base and towards the 

 tip, but with some white scales at the tip ; tarsus black or greyish-black, 

 with the base and tip of the 1st joint and the 2nd joint entirely white. 

 Wings dark brownish-grey, with whitish markings, differing from P. 

 ocellaris in the outer border of the dark basal patch being transversely 

 curved ; nearer whitish fascia narrower, indented at the radial fork, and 

 less distinctly defined between the pobrachial and anal nervures than 

 elsewhere. The markings representing the further whitish fascia of P. 

 trifasciata, placed in a dislocated series, leave the dark median fascia 

 more distinctly in the form of a broad Y> and the spot at the posterior 

 margin extending into the fringe is not ocellated and is smaller than in 

 P. ocellaris. Wing-margin dark, interrupted by white tufts of hair 

 only at the ends of the subcosta, i-adial branches, postical and anal ner- 

 vures ; and there is no appearance of an ocellated spot at the costa ; 

 fringe dark, glossed with a light colour from about the posterior branch 

 of the radius to the posterior branch of the pobrachial, and again from 

 just before the anal to the end of the axillar nervure. Wing, 3 mm. long. 



17. P. Dalii, sp. nov. 



3 — (la) Radius forked distinctly before the end of the axillar nervure 4. 



a — Radius forked beyond the end of the axillar nervure ; pobrachial forked 

 beyond that. Apex of wing ellipsoidal, rounded between the cubitus 

 and the prsebrachial nerpures .... 5. 



b — Radius forked opposite, or almost exactly opposite the end of the axillar 

 nervure. Antennae in $ reach nearly to the wing's middle ; the first 

 two joints short and moderately stout, the other fourteen moniliforni, 

 mostly with globular nodules at long intervals 7. 



4 — (3) Wing pointed exactly at the end of the preebrachial nervure. Antennae 



short, in £ hardly reaching to the insertions of the wings (sliorter in 9 ) ; 

 the first two joints stout and thickened with scales, some of them spread- 

 ing near the tip of the 1st and the middle of the 2nd joint, and othei-s 

 projecting as a tuft of spinules from the upper extremity of the 2nd 

 joint ; the other fourteen joints moniliform, mostly with globular nodules 

 at rather short intervals and widely cupuliform verticils of hair; basal 

 joint (denuded of scales) compressed, about thrice as long as broad ; 2nd 

 joint obovoid, almost one-half the length of the 1st ; 3rd joint much 

 smaller, globular, sessile. Radius foi-ked very shortly before the pobra- 

 chial fork, and linked to the anterior basal cell at a distance hardly less 

 than the cell's apical width from the cell's end. Thorax in $ furnished 



M 



