408 THE CANADIAN ENTOMOLOGIST. 



retracted into it ; abdomen about as long as the length of the thorax. 

 Parapsidal furrows incomplete, but distinct caudad, leading from a point 

 just cephalad of the cephalo-mesal angle of the axillae and distinct for a 

 third the length of the mesoscutum, narrow, like the median furrow of the 

 scutellum. Scutellum with a distinct median and a lateral longitudinal 

 furrow, the litter complete and punctate for its entire length (see female) ; 

 caudal margin of the mesoscutum, between theaxillse, slightly emarginate, 

 just on each side of the meson; otherwise that portion of it is straight. 

 Postscutellum rugose basally, triangularly peltate ; median line of the 

 metanotum smooth and broad, differentiated, oval. Ring-joint present, 

 very shallow, in effect a broad median carina bordered by a sulcus on 

 each side. Legs normal, coxae enlarged, somewhat globular, the tarsi 

 4-jointed. Wings hyaline, densely, shortly ciliate distally, the marginal 

 cilia moderate, short, the stigmal vein distinct, but very short, subsessile, 

 as is also the postmarginal vein, both subequal and about a sixth or 

 seventh of the length of the marginal vein, which in turn is about one-third 

 longer than the submarginal vein. Mandibles acutely bidentate, the inner 

 or mesal tooth slightly shorter, and with its apical margin serrate at its 

 middle. Body small and delicate, metallic. 



From 6 specimens, j^.i^ch objective, 2-inch optic. Bausch and 

 Lomb. 



Female. — As the male. Head densely, minutely reticulated on the 

 face, laterad of the scrobes and also on the vertex and occiput, finely, 

 minutely, longitudinally rugulose just beneath the eyes, the malar space or 

 gen^e smooth, the eyes shorter, more rounded and more convex ; antennae 

 inserted slightly below (ventrad of) an imaginary line drawn between the 

 ventral ends of the eyes, without a ring-joint, but the club 2-jointed, the 

 apical joint small and conical, the funicle 3-jointed, its joints subpedun- 

 culate ; the flagellum somewhat less hairy than in the male. Petiole of 

 abdomen stouter and less conspicuous, but distinct. Axillae widely 

 separated. The lateral longitudinal furrow of the scutellum complete and 

 uniform, not evanescent caudad, and continued caudo-mesad in a curved 

 line to the base or origin of the median furrow (caudal end), and consist- 

 ing of shallow oval punctures ; the median grooved line narrow. Abdomen 

 long, pointed, conic-ovate, but very slightly produced convexly ventrad, 

 and inclined dorsad from its insertion (dead specimen), hiding the petiole 

 somewhat, the second (first body) segment very long, somewhat over a 

 half the length of the abdomen (excluding the petiole), and hence longer 



