284 Transactions. — Zoology. 



of the distance along the wing ; second longitudinal joining 

 the tip of the costa almost at the apex of the wing ; anterior 

 branch comparatively long, situated some distance from the 

 transverse vein ; vein connecting second and third longitudi- 

 nals very faint ; apex of fork of third longitudinal situated 

 some distance beyond end of marginal cell ; anterior branch 

 of third longitudinal disconnected at a point rather nearer the 

 base than the middle of the marginal cell ; fifth longitudinal 

 almost parallel to and close beside posterior branch of fourth 

 longitudinal, but not reaching the margin. 



I have only one, and that rather an imperfect specimen, of 

 this insect, taken in Fagus bush, at the base of Mount 

 Torlesse, in March. It shows more affinities with Sciophila 

 than with any other genus described in Mr. Skuse's Mono- 

 graph, and I have therefore placed it in that genus. It differs 

 from it in the position of the anterior branch of the second 

 longitudinal, and in the disconnection of the anterior branch 

 of the fourth longitudinal ; while the rudimentary condition 

 of the auxiliary vem is extremely exceptional in Sciophila. I 

 hesitate to establish a new genus on such a poor specimen, 

 but feel confident that the insect will not long be left in this 

 genus. 



Genus Parvicellula, gen. nov. 



Head oval. Eyes large, emarginate, nearly meeting below 

 the antennae. Proboscis short. Palpi short, first joint very 

 short, the others about equal in length, except the fourth, 

 which is rather longer. Front almost triangular. Three 

 ocelli, the middle one much smaller than the others, arranged 

 in a sligiitly-curved line. Antennae about as long as the 

 thorax, 2 + 14 jointed ; first joint of scapus very short, much 

 broader than long, second joint about as long as broad, setose 

 on the upper surface ; flagellum stout, joints rather longer 

 than broad, densely pubescent. Thorax very highly arched, 

 pubescent, setaceous on anterior and lateral margins. Scutel- 

 lum small, nearly circular, bordered posteriorly with setae. 

 Metathorax steep. Abdomen rather flattened, seven-jointed, 

 hirsute. Legs rather slender ; coxae stout, slightly hairy on 

 the outer side ; femora half as long again as the coxae, rather 

 slender, compressed, hairy ; tibiae rather stout, in fore and 

 intermediate legs shorter than the tarsi, in the posterior legs 

 about the same length as the tarsi, a few scattered spines on 

 the fore tibiae, two ranges of few spines on intermediate tibiae, 

 and two ranges of well-developed spines on the posterior legs ; 

 spurs stout ; intermediate and hind tarsi with small prickles 

 on the inner side. Wings about as long as the abdomen, 

 rounded at the kpex, with fairly pronounced anal angle, sur- 

 face thickly covered with hairs. Auxiliary vein rather stout, 



