ICHNEUMON-FLIES OF GENUS CARDIOCHILES — MAO 259 



nal suture extending obliquely forward to the margin ; second tergite 

 slightly shorter than third medially; ovipositor sheath about 0.67 as 

 long as abdomen (pi. 5, fig. 38) . 



Male. — Essentially similar to the female, a transverse black band 

 on vertex between eyes ; clypeus notched rather strongly. 



Type, — In the Academy of Natural Sciences of Philadelphia. 



Redescribed from the type female, from Cordova, Mexico, and a 

 male, also from Mexico, in the Academy of Natural Sciences of Phila- 

 delphia. The male from Arizona, recorded by Ashmead, is not in 

 the U. S. National Museum. 



CARDIOCHILES TIBIATOR (Say) 



Bracon tiUator Say, Keating's Narrative of an expedition to the source of St. 



Peters River . . ., vol. 2, Append., p. 323, No. 1, 1824 (female). — LeConte, 



Complete writings of Thomas Say on the entomology of North America, 



vol. 2, p. 716, No. 17, 1859. — Cresson, Can. Ent., vol. 5, p. 68, 1873. — Ashmead, 



Proe. Ent. Soc. Washington, vol. 3, pp. 49, 51, No. 7, 1894. 

 Bracon {ToxUneuron) tibiator Say, Boston Journ. Nat. Hist., vol. 1, pt. 3, p. 259, 



No. 17, 1836. — LeConte, Complete vpritings of Thomas Say on the entomology 



of North America, vol. 2, p. 715, No. 17, 1859. 

 CardiocJiiles tihiator Ashmead, in Smith, Insects of New Jersey, p. 592, 1900. — 



ViEKECK, Connecticut Nat. Hist. Surv. Bull. 22, p. 183, 1917. — Leonard, 



Cornell Univ. Agr. Exp. Stat. Mem. 101, p. 913, 1928. 



Female. — Length 5.5 mm. Black, anterior wing hyaline with apical 

 third contrastingly fuliginous ; posterior wing hyaline, inf uscated at 

 apex ; apex of fore femur, fore tibia and tarsus entirely, basal half of 

 middle tibia, middle tarsus, and basal third of hind tibia, yellowish 

 white; pedicel dark ferruginous apically; middle part of mandible 

 dark ferruginous. Antenna about 37-segmented ; eye hairy; ocelli 

 elevated; vertex shining, wrinkled and with a transverse low eleva- 

 tion bordering the occiput ; f rons transversely striate and with a very 

 weak median longitudinal carina; face about twice as wide as long, 

 convex, and with a complete median longitudinal carina; clypeus 

 punctate, apical margin distinctly notched at middle, median basal 

 part slightly elevated ; temple striate, and bulging, broader than eye 

 in dorsal view ; galea short. Pubescence of thorax silvery or whitish ; 

 central portion of lateral face of pronotum rugose; median lobe of 

 mesoscutum very shallowly impressed medially, sometimes with a 

 shallow longitudinal impression each side of median line; the three 

 lobes of mesoscutum a little roughened ; notaulices coarsely f oveolate ; 

 upper groove of mesopleuron rugose, lower groove foveate or rugoso- 

 foveate, posterior groove foveolate with a smooth depression at the 

 middle leading anteriorly to the lower groove; metapleuron rugose, 

 anterior triangular portion mostly smooth; propodeum with abun- 

 dant, long, silvery hair, rugose, carinae prominent, areola diamond- 



