364 THE CANADIAN ENTOMOLOGIST. 



middle legs, pale rufous or whitish; the antennae short with the 

 third segment longer than the fourth, the fourth and fifth sub- 

 equal; the head, including the clypeus and labrum, densely punc- 

 tured and setaceous, less abundant on the postocellar area; the 

 malar space broad, the clypeus deeply roundly emarginate, the 

 labrum set in the emargination; the supraclypeal area elevated, 

 convex; the antennal furrows broad depressions; indistinct, line- 

 like marks at the occiput; the ocellar basin broad, diamond-shaped, 

 enclosing the median ocellus and extending to the median fovea, 

 which is round, shallow, indistinct, and still less distinct in the 

 male; the mesonotum, the metanotum, the pleurae, and the pectus 

 polished; the abdomen polished, densely setaceous; the saw guides 

 convex above, straight on the proximal half below, convex on the 

 distal half, joining the upper margin at the middle of the distal end 

 and forming a pointed but bluntly rounded distal end. Length 

 7 — 9 mm. 



Habitat — Troutdale, Oregon. 



Described from specimens received from Professor H. F. 

 Wilson, who reports it as boring into the stems of cherry. 



Profenusa, gen. 



Antennae with nine segments; front wings with the free part 

 of Sci tuberculate; the radial cross-vein, the radio-medial cross- 

 vein, and the free part of R.4 and Rs present; the medio-cubital 

 cross-vein separating from Sc+R+M near the point of origin of the 

 free part of M and strongly divergent caudad with the free part of 

 M3+4; the anal cells petiolate; the scar of the free part of the third 

 anal vein wanting; the free part of M4+CU1 located midway be- 

 tween the mediocubital cross-vein and the free part of M3+4; the 

 hind wings with the cell R1+2 wanting; the free part of R4 and 

 the transverse part of M2 wanting; the free part of the second 

 anal vein present. Type, Profenusa collaris, n. sp. 



This genus is closely related to Messa Leach, from which it is 

 differentiated by the presence of the radio-medial cross-vein. 



Profenusa collaris, n. sp. 

 Female — Body black, with the clypeus, labrum, malar space, 

 the mandibles, the first segment of the antennae, the tegulae, a 

 narrow margin to the pronotum, and the legs, for the most part, 



