ICHNEUMON-FLIES — GELINAE : MESOSTENINI 357 



and stout; notaulus about 0.25 as long as mesoscutum; punctures on 

 mesopleurum rather small, separated by about 0.4 their diameter or 

 in some places closer together; propodeum of moderate length, its 

 apical carina complete but laterally and medially weak, produced 

 sublaterally to form weak crests, mesad of the crests trending forward 

 to form a broad rounded angle at the midline; sides of areolet usually 

 weakly convergent; nervulus beyond basal vein by about 0.25 its 

 length; nervellus broken near its middle; petiole rather short and 

 broad, ^vith a ventrolateral longitudinal carina and a weak dorso- 

 lateral longitudinal ridge, its lateral face with strong, fine, irregular 

 wi'inkles; first sternite covered with fine weak wrinkling that has a 

 mostly longitudinal direction, the apical half of the sternite bounded 

 on each side by a weak longitudinal carina that represents the ventral 

 edge of the sternite (the only other species with this carina well 

 developed is T. albitarsis) ; second tcrgite subpolished, with unusually 

 short, dense hairs, the hair sockets separated by about 0.8 the length 

 of the hairs; ovipositor a little shorter than usual (the sheath about 

 0.24 as long as front wing), its nodus a little weaker than normal for 

 the genus. 



Male: Black. Maxillary palpus white, its last segment dusky and 

 its first one and a half segments fuscous; labial palpus fuscous, the 

 apex of its tliird segment white in front; tegula black; front and middle 

 femora dark brown, paler apically (especially the front femur) ; front 

 and middle tibiae and front tarsus light brown; middle tarsus light 

 brown, the median three segments white, the fourth segment with a 

 median apical brown spot; hind tarsus white, the apical 0.4 of its 

 last segment brown; wings faintly tinged with brown; tergites 2 and 3 

 dusky brown; narrow apical margins of tergites 1-4 and th}Tidia 

 ferruginous. 



Female: Black. Palpi and tegula black; flagellum with a median 

 incomplete band that covers 4.6 segments; front tibia and all tarsi 

 dark brown, the tarsi pale at the joints and segments 2-4 of hind 

 tarsus white with their apices brownish; apex of segment 1 of hind 

 tarsus sometimes white; wings faintly tinged with brown; very narrow 

 apical margins of tergites 1 and 4, wider apical margins of tergites 

 2 and 3, and thyridia, ferruginous. 



Type: 9, Cartwi-ight, Labrador, July 12, 1955, E. F. Cashman 

 (Ottawa). 



Paratypes: 9, same data as type (Ottawa). 9, 14 miles southeast 

 of Fort Kent, Maine, July 8, 1950, J. B. Cope (Patuxent). cT", 

 Mount Lyall, 1,500 ft.. Que., July 4, 1933, W. J. Brown (Ottawa). 

 9, Parke Reserve, Kamouraska Co., 950 ft., Que., July 11, 1947, 

 W. R. M. Mason (Ottawa). 



