ICHNEUMON-FLIES OF GENUS CARDIOCHILES MAO 249 



and eye of about equal width in dorsal view; galea short. Lateral 

 face of pronotum wrinkled medially on anterior half; mesonotum 

 smooth and polished ; notaulices fine, indistinctly f oveolate ; mesopleu- 

 ron smooth and shining, upper groove broad, rugulose, irregularly 

 partitioned, lower groove weakly foveolate, posterior groove strongly 

 foveate with a delicate curved groove from its middle leading to the 

 lower groove ; metapleuron rugose, a large, smooth and polished area 

 anteriorly ; propodeum rugose, its carinae, including costulae, promi- 

 nent, spiracle ovate. First abscissa of radius longer and thicker than 

 that of basal vein ; fourth abscissa of cubitus about 1.50 times as long 

 as the third ; second abscissa of cubitus and recurrent vein about equal ; 

 interanal vein represented by a pigmented line. Second and fifth seg- 

 ments of fore tarsus about equal ; inner tibial spur of middle leg very 

 nearly as long as basitai-sus, second tarsal segment longer than fifth, 

 third and fifth segments about equal ; apex of hind tibia not broadened, 

 inner tibial spur about two-thirds as long as the basitarsus, basitarsus 

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

 segment longer than third, third longer than fifth ; hind tarsal claws 

 pectinate basally. First abdominal suture extending obliquely for- 

 ward laterally ; third tergite slightly over 1.50 times as long as second. 

 (Redescribed from the male type.) 



Female. — Essentially similar to the male. Hypopygium about as 

 long as hind basitarsus, plowshare-shaped, not surpassing apex of 

 last tergite ; ovipositor sheath about as long as the first three segments 

 of hind tarsus combined and pubescent (pi. 5, fig. 34) . 



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



In addition to the type from Orizaba, Mexico, numerous specimens, 

 collected at localities in Georgia, Alabama, Florida, Arkansas, Kansas, 

 Louisiana, Texas, and Mexico have been studied. 



CARDIOCHILES PLUTO (Ashmead), new combination 



Tomoneura pluto Ashmead, Proc. Eut. Soc. Washington, vol. 3, No. 1, pp. 48, 49, 

 1894 (female). 



Male. — Length about 7 mm. Black; apical end of pedicel, outer 

 orbit, basal part of clypeus, middle part of mandible weakly suffused 

 with red; wings fuliginous; genitalia black. Head with long black 

 hair that is shorter, however, than in nigricans; antennae incomplete; 

 eye bare; ocelli elevated; vertex smooth, polished; frons smooth and 

 polished ; face about 2.50 times as wide as long, smooth, polished, and 

 with a short median ridge above ; clypeus smooth, polished, its apical 

 margin slightly flaring medially, not notched ; temple wider than eye 

 in dorsal view ; galea short. Posterior portion, except broad margins, 

 of lateral face of pronotum rugose ; mesoscutum without a longitudinal 

 depression along each side of the median line ; notaulices narrow, finely 



