462 Mr. T. D. A. Cockerell on Fossil Arthropods 
is provisional. The undulation of R, is nearly asin L, toxo- 
neura, O.-S., but that has a marginal cross-vein, absent in 
the fossil. ZL. munda, O.-S., also seems related. The first 
Fig. 15. 
Limnophila aliena, sp. n. 
vein from the discal cell is simple throughout, not forked as 
in L. deleta. It also differs from LZ. deleta in having the 
second anal straight to the end, not curved. 
I. 9018 (Brodie collection). 
Limnophila incogn'ta, sp.n. (Fig. 16.) 
Length nearly 6 mm., greyish fuscous ; wing 6 mm. long, 
reddish. Remarkable for the long prefurca, which goes a 
short distance basad of the level of end of secondanal. The 
three veins from the discal cell are all simple, and the discal 
cell itself is long and narrow, broadening apically, with the 
face on the second posterior cell shorter than that on the 
third. 
Fig. 16. 
Qe 
>») 
I. 9186 (Brodie collection). It resembles L. quadrata, 
O.-S., in the simple 1/,, but in quadrata the cross-vein below 
the discal cell is nearer the middle of that cell, and Rs forks 
basad of the base of first posterior cell. 
Limnophila incognita, sp. n. 
