78 PROC. ENT. soc. WASH., VOL. 22, NO. 4, APRIL, 1920 



(this is very close to the condition of the Rhyssini) while most 

 of them have it originating far out on the cubitella. In Labena 

 and Grotea it is not far above the middle of nervellus. 



In having the epipleura broad and concealing the sternites 

 Apechoneura resembles Labena and Grotea. 



To the writer it seems that the preponderance of the characters 

 allies Apechoneura with the Rhyssini and Grotea with the Labenini, 

 while the former, by the few characters in which it resembles the 

 Labenini, merely shows the relationship of the two tribes to each 

 other and emphasizes the Ichneumonine affinities of the Labenini, 

 and that the family Labenidae is not well founded. 



Genus Apechoneura Kriechbaumer. 



Apechoneura Kriechbaumer, Ann. k. k. naturh, Hofmus. Wien., Vol. 5, 

 1890, p. 485. 



Psiloparia Viereck, Ent. News, Vol. 31, 1920, p. 17. 



The following additional characters of the female are of im- 

 portance : 



Occipital carina curving forward below and joining the gular carina nearly 

 at the base of the mandibles, the space between the carinae armed with a 

 tooth posteriorly; face convexly elevated, above level of eye-margins, coarsely 

 pitted; pronotum with a flange-like carina at about the middle of its upper 

 lateral margin, tegulae oblong; propodeum with only the five basal areas 

 completely defined, the only carinae developed behind the basal being the 

 lateral longitudinal; the true ninth tergite (i. e., counting the propodeum as 

 the first) nearly completely divided medially and prolonged at the sides into 

 long acute lobes, the tenth not completely fused with it but lying between the 

 prolongations of the ninth as a weakly chitinized, trowel-shaped flap. (See 

 Fig. 1 c, d, and e.) 



The last character is most curious and not possessed, so far as 

 the writer is aware, by any other Ichneumonid. It furnishes good 

 specific characters. 



Apechoneura tricolor, new species. 



Closely related to (Psiloparia) Apechoneura maculata (Viereck), 

 from the description of which it differs principally in color of body 

 and of appendages. 



Does not agree with the description of any of the thirteen 

 species tabulated by Morley (loc. cit.). 



Female. Length 16 mm.; antennae 12.5 mm.; ovipositor 15.5 mm. 

 Head subglobose, the cheeks very broad, tooth between occipital and genal 

 carinae very small and acute; face about as long as wide at top, narrowed 



