466 Mr. T. D. A. Cockerell on Fossil Arthropods 
of Rymosia, but easily separated by the very long stem and 
short broad fork of cubitus. 
Psychodide. 
Psychoda (?) leucospila, sp.n. (Fig. 25.) 
Thorax and abdomen ferruginous, the abdomen parallel- 
sided, comparatively narrow ; wing hyaline, about 2 mm. 
long, with a large chalky-white costal patch near base, quite . 
the same (and well preserved) on both sides. Venation 
nearly as in P. primeva, Ckll., but that is a larger species 
and does not show the white patches. 
Psychoda (?) leucospila, sp. n. 
I. 9463 (Brodie collection). No species could be found 
among the living forms showing similar white areas at the 
base of the wings. The insect is in some respects like 
Trichomyia, but differs in the venation. 
Dixide. 
Diza priscula, sp.n. (Fig. 26.) 
Wings hyaline, 4 mm. long. Venation typical for Dia, 
Diva priscula, sp. n. 
but differing from some species in that the M—Cu cross- 
vein arises before the lower end of the R-M cross-vein. The 
media is straight, instead of being bent at the cross-veins. 
i 08, 
