THE CANADIAN ENTOMOLOGIST. 75 



Collar and legs yellow ; abdomen piceous ; first segment and 

 basal two-thirds of second longitudinally striated, the 

 second with a transverse impressed line at the middle. 



Metathorax with two areas at base ; antennae in <j> 



24-jointed C. longicaudus, sp. n. 



Metathorax rugose, but without areas at base ; 

 antennas in $ iS^jointed. . . . C. flavicollis, sp. n. 

 Ovipositor not quite as long as the body. 



Head piceous, polished ; collar, mesosternum, legs and basal 

 half of abdomen, yellow ; antennae 24-jointed ; metathorax 



with two smooth areas at base C. consimilis, sp. n. 



Ovipositor scarcely as long as the abdomen. 



Head minutely punctulate, subopaque ; legs, base of second 

 abdominal segment and the three terminal segments, 

 yellowish ; first segment, basal two-thirds of second and 

 base of third and fourth, striated ; the second segment 

 with two transverse impressed lines ; antenna? 28-jointed . 



C. langurice, sp. n. 



Head transversely aciculajed. shining ; legs brown, trochanters 

 and tarsi yellow ; abdomen piceous black, the first and 

 second segments striated, the following smooth ; antennae 



in $ 1 9-, in $ 18-jointed. . . = C. atrata, Ashm. 



Ovipositor half the length of abdomen. 



Head polished, impunctured ; legs yellowish- white ; abdomen 

 piceous or yellowish at base of second segment, also some- 

 times at apex of first ; first segment, basal two-thirds of 

 second and base of third, striated ; rest of abdomen 

 smooth, shining, the second segment with a transverse 

 impressed line at the middle; antennae in $ 23-jointed.. 



C. ant h ax ice, sp. n. 



Head transversely aciculated ; legs brownish-yellow, the hind 

 coxae black ; abdomen finely rugose, the first segment and 

 the following segments (except apical portion of the 3, 4 

 and 5, two-thirds of the 6 and the 7, which are polished), 

 striated ; second segment with two longitudinal furrows ; 

 antennae 25-jointed C. borealis, Ashm. 



Legs pale brown, trochanters and tarsi whitish ; abdomen 

 elongate ovate, black, polished, the first two segments and 



