120 THE CANADIAN KNTOMOLOGIST. 



XLIX. Moiiocrita Foerster. 



76 (i). Monocrita melanostropha, n. sp. 



% . Length, .08 inch. Black, sub-opaque, finely punctate, middle 

 of mesothorax and the somewhat flattened scutellum, polished. Antennae 

 entirely black, terminal joint one-third longer than the preceding joint. 

 Mesothorax with two grooves. Legs red, the femora obfuscated or black- 

 ish. Abdomen polished black. Wings hyaline, submarginal vein black. 



Hab. — Florida. 



77 (2). Monocrita Canadensis, n. sp. 



^. Length, .14 inch. Black, head and prothorax finely punctate. 

 Antennas lo-jointed, filiform antennae with the legs are pale brownish yel- 

 low. Thorax with two deep grooves, converging and almost meeting 

 posteriorly. Scutellum slightly convex, punctate, pubescent, separated 

 from the thorax by a deep depression. Wings fuscous. 



Hab. — Canada. Kindly given me by Mr. W. H. Harrington. 



L. Isostasius Foerster. 



78 (i). Isostasins musaiius, n. sp. 



$ . Length, .04 inch. Black, polished. Ocelli distant from inner 

 border of eye. Antennae lo-jointed, black, club 4-jointed, the joints 

 broader than long. Thorax without grooves. Legs black, femora at base 

 and tarsi reddish. Abdomen ovate, not quite as long as the thorax, and 

 but slightly compressed from above. Wings hyaline, submarginal vein 

 black ; no other veins. 



Hab. — Florida. 



LL Inostemma Haliday. 



79 (i). Inostemma Horni, n. sp. 



^, $. Length, .06 to .07 inch. Black, sub-opaque, microscopically 

 punctate. Antennae lo-jointed, entirely black. The horn in female is 

 prolonged over the thorax, extending to base of ocelli, gradually narrowed 

 at base. Legs black, tarsi pale brown, in some specimens the tibiae are 

 pale at tips. Abdomen acuminate ovate, longer than head and thorax 

 combined. Wings hyaline, submarginal vein black. The male is without 

 the projecting horn, and is difficult to distinguish from other species in 

 this group, the shape of the abdomen, which is acuminate ovate, less de- 

 pressed than any others, and the basal ocelli, which are contiguous to the 



