256 Transactions. — Zoology. 



SECTION II. 

 Sub-section VI. Sciophilin^. 

 Genus Scio'phila. 



Tip of the costal vein uniting with the tip of the second 

 longitudinal vein at the apex of the wing. Base of the second 

 posterior cell nearer to the root of the wing than the base of 

 the third submarginal cell. Auxiliary sometimes complete 

 and terminating in the costa above the marginal cell, and 

 sometimes incomplete. Surface of the wing microscopically 

 pubescent. Intermediate coxae of the male sometimes with 

 an upward-bent spine. 



I have only one species belonging to this genus, and of 

 that I have grave doubts, but I place it here until I can obtain 

 better specimens. 



Genus Parvicellula, nov. gen. 



Costal vein extending considerably beyond the apex of the 

 second longitudinal vein, but not reaching the apex of the 

 wing. Auxiliary vein rather stout, almost one-third the length 

 of the wing. Subcostal cross-vein situated near the apex of 

 the inner marginal cell. Petiole of second longitudinal vein 

 very short. Fourth longitudinal vein unbranched. 



I have only one species of this genus. It is rather common 

 at Lincoln towards the end of the summer. 



Genus Tetragoneura, Winn. 



Costal vein extending far beyond the tip of the second 

 longitudinal vein, but not as far as the apex of the wing. 

 Auxiliary vein small, bent posteriorly, ending in the first 

 longitudinal vein far before the marginal cell, or shortened to 

 a tooth. The marginal cell far beyond the middle of the first 

 longitudinal vein. Inner marginal cell much lengthened. Fork 

 of the third longitudinal vein with a moderately long petiole. 

 Base of the second posterior cell lying before the base of the 

 third submarginal cell. Surface of the wing microscopically 

 pubescent. 



I have only one species of this genus. 



SECTION III. 

 Sub-section VII. Mycetophilin^. 

 A. Three ocelli on the front. 

 Genus Aneura, gen. nov. 



Costal vein reaching the apex of the wing. Auxiliary vein 

 more than one-third the length of the wing. Subcostal cross- 

 vein absent. Second longitudinal vein ending in the costa 

 some distance before its apex. Fourth longitudinal vein 

 forked. 



