ICHNEUMON-FLIES OF GENUS CARDIOCHILES — MAO 247 



into a flaring process ; inner spur of middle tibia about 0.75 as long as its 

 basitarsus, second tarsal segment slightly shorter than fifth ; inner spur 

 of hind tibia about 0.67 as long as its basitarsus, basitarsus about as 

 long as the next three tarsal segments combined, second tarsal segment 

 slightly shorter than fifth ; hind tarsal claws pectinate, each with five 

 short, visible teeth basally. First abdominal suture slightly curved to 

 the margin ; second tergite much shorter than third medially. 



Type.—U.S.^M. No. 58291. 



Type locality. — Jacumba, Calif. 



Described from a single male collected by D. J. and J. N. KnuU, 

 May 18, 1941. 



CARDIOCHILES NIGRICEPS Viereck 



CardiochUes nigriceps Vieeeck, Proc. U. S. Nat. Mus., vol. 43, p. 578, 1912 (female, 

 male). — Chamberlin and Tenhet, Jour. Agr. Res., vol. 33, p. 21, 1926. 



Toxoneuron sp. Morgan and McDonough, U. S. Dept. Agr. Farmers' BuU. 819, 

 p. 6, 1917. 



When he described this species Viereck suggested that it might prove 

 to be only a race of viator or seminiger. It is quite distinct from 

 viator, differing in the much shorter galea and labium, in the dark costa 

 and stigma, and in not having apex of hind tibia expanded into a 

 strongly flaring process. Essentially it is very similar to seminiger 

 (Cresson) and perhaps is only subspecifically distinct, but for the pres- 

 ent at least it seems advisable to give it specific rank. It may be 

 separated from seminiger by the following color differences : Pronotum 

 black, median part of lateral face sometimes red or yellowish brown ; 

 anterior part of mesoscutum, or at least anterior part of median lobe, 

 black ; fore and middle femora largely black or piceous. The middle 

 lobe of the mesoscutum slopes more gradually to the pronotum than in 

 seminiger (pi. 4, figs. 6, 7), and the first intercubitus is angulate and 

 often appendiculate below the middle. 



Type.—V.S.^M. No. 15007. 



In addition to the type series from Georgia and Florida, the author 

 has examined specimens from South Carolina, Georgia, Florida, Vir- 

 ginia, District of Columbia, Alabama, Mississippi, Louisiana, Ar- 

 kansas, and Colorado. The species is commonly reared as a parasite 

 of the tobacco bud worm, Heliothis virescens (Fabricius) . 



CARDIOCHILES NIGROCLYPEUS Viereck 



CardiochUes nigroclypeus Viekeck, Trans. Kans. Acad. Sci., vol. 19, p. 275, 

 1905 (male). 



Male. — ^Length 6.5 mm. Head and thorax black. Wings entirely 

 dark fuliginous ; legs ferruginous, coxae, trochanters, fore and middle 

 femora basally, apex of hind tibia, and tarsi black, tibial spurs dark, 

 except spur of foreleg which is ferruginous; abdomen ferruginous; 



