THE CANADIAN ENTOMOLOGIST 61 



Type in the collection of the author. 



Related to E. macrophthalma Loew (Europe). In our fauna 

 closest to E. vespertina O.S. in the enlarged eyes of the male sex 

 but differing in the clear, reddish brown coloration of the body, 

 lacking the yellow humeral angles to the prjescutum and the bright 

 yellow knobs to the halteres. The male hypopygia are differently 

 constructed in the two species. 



E. vespertina is an inhabitant of open swamps and meadow- 

 lands, while E. megophthalma is characteristic of cool woods and 

 boggy, shaded hillsides. I reared this new species from numerous 

 larvse, occurring in mud and beaneath rotting leaves, associated 

 with other crane-fly larvae (as Dicranomyia stulta, Molophilus 

 hirtipennis, Ormosia innocens, Limnophila fuscovaria, Rhaphido- 

 labis flaveola, Tipula oropezoides, T. collaris, T. cayuga, Bitta- 

 comorphella, jonesi, etc.) in the Symplocarpus association on Bools 

 Hillside. The larva is curious in the chalky white colour due to 

 the contents of the food-canal showing through the skin; the head- 

 capsule and spiracular-disk are very small. 



Tribe Limnophilini. 

 Lasiomastix subtenuicornis, sp. n. 



Allied to L. tenuicornis O.S.; antennee of the male elongated; 

 apical cells of the wings pubescent; cell Mi of the wings lacking. 



Ma/^.— Length 7 mm.; wing 7.4 mm. 



Female. — Length 8.8-9 mm.; wing 8.8 mm. 



Rostrum and palpi black, the former slightly pruinose. An- 

 tennae of the male elongated, black, the flagellar segments elongate- 

 cylindrical with a dense, whitish pubescence. Head light gray. 



Praescutum brownish gray with three broad, dark brown 

 stripes, the median one not attaining the suture; scutum, scutellum 

 and postnotum blackish gray pruinose. Pleura dark with a clear, 

 blue-gray pruinosity. Halteres yellow, the knobs a little darker. 

 Legs with the coxae dull yellowish, the two anterior pairs a little 

 pruinose basally on the outer faces; trochanters yellow; femora 

 yello^v, passing into brown on the outer third; tibiae and tarsi 

 dark brown. Wings dusky gray; stigma brownish; veins dark 

 brown: a sparse pubescence in the apical cells of the wings. Ven- 



