THE CANADIAN ENTOMOLOGIST. 31 



Antennae black. 



Legs, including coxae, brownish fulvous . C. oeeidenta/is,Cress. 



Legs rufous, coxa; black C. Pettitii, Cress. 



Legs rufous, coxae rufous C. Canadensis, n. sp. 



Of the above species, occidentalis is recorded from Vane. Island, and 

 has been taken in California by Mr. Koebele ; mellipes from the Rocky 

 Mountains ; rtifus from Quebec (?), and Pettitii and Canadensis from 

 Ontario. 



Another fine genus of the Pimplinae is Ecthrus, the species of which 

 in general appearance much resemble those of Coleocentrus. The 

 females, however, may be readily distinguished by die absence of the 

 large ventral scale, and by their inflated anterior tibiae. The shape of the 

 areolet and of the last dorsal segment of the abdomen will separate the 

 males. 

 Ecthrus rufopedibus. n. sp. 



Female. Length, 20 mm. Black, with red legs. Head entirely 

 black ; face rugosely punctured and opaque ; cheeks and vertex polished, 

 but distinctly punctate ; labrum and mandibles polished ; palpi black ; 

 antennae long and slender : third, fourth, and fifth joints long, subequal, a 

 white annulus extending from middle of sixth joint nearly to apex of 

 tenth. Thorax immaculate ; lobes of mesothorax prominent, polished 

 and punctate, as is also scutellum ; pleura and metathorax coarsely 

 rugosely sculptured, posterior transverse carina of me"tathorax distinct, but 

 areas of disc not clearly defined ; wings sub-hyaline, nervures and stigma 

 black, areolet large, pentagonal ; coxae, trochanters and femora rufous, 

 front tibia; inflated, white, their tarsi almost rufous, middle tibiae and tarsi 

 brownish, the posterior tibiae and tarsi black. Abdomen stout, basal seg- 

 ments strongly punctured, the first without distinct carina? ; ovipositor as 

 long as body, rufous, sheaths black, scarcely pubescent. 



This fine species was captured by Mr. Winn at Montreal on the 14th 

 June, 1890. 



I have prepared the following table for convenience in separating the 

 twelve species of the genus. 



FEMALES. 



Wings smoky E. 1 niaurus, Cress. 



Wings banded. 



Legs rufous E. nubilipeiuiis, Cress. 



Legs black E. luctuosus, Prov. 



