ICHNEUMON-FLIES OF GENUS CARDIOCHILES — MAO 233 



lower groove weakly foveolate, posterior groove coarsely foveolate; 

 metapleiiron rugose, median ventral part of its anterior portion 

 smooth; propodeum rugose, carinae moderately high, spiracle short 

 ovate. First abscissae of radius and basal vein about equal ; third ab- 

 scissa of cubitus much shorter than fourth; nervulus postf ureal by 

 about half of its length ; first abscissa of submedius shorter than second ; 

 interanal vein represented by a lightly pigmented stump. Second arid 

 fifth segments of fore tarsus about equal ; apex of hind tibia not thick- 

 ened or expanded into a flaring process; inner spur of middle tibia 

 about 0.75 as long as basitarsus, second tarsal segment slightly longer 

 than fifth; iimer spur of hind tibia about 0.67 as long as basitarsus, 

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

 second tarsal segment longer than fifth ; hind tarsal claws pectinate. 

 First tergite weakly sclerotized laterally; first abdominal suture ex- 

 tending obliquely forward to the margin ; second tergite shorter than 

 the third medially; hypopygium in profile plowshare-shaped, about 

 as long as the first two tergites combined, its median ventral line 

 folded; ovipositor sheath about as long as the first five abdominal 

 tergites combined, pubescent, slightly broadened apically, and its tip 

 bent ventrally (pi. 5, fig. 26). 



Male. — Essentially similai- to the female. 



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



In addition to the type the author has studied specimens from Atco, 

 N. J., June 7, 1893 ; Plummers Island, Md., June 1914 ; Glen Echo, Md., 

 summer, 1922 ; Glencarlyn, Va., June 9, 1912 ; Champaign, 111. ; Mount 

 Pleasant, Iowa, May 26, 1934; Onaga, Kans.; and Chickamauga, Ga., 

 July 10, 1898. 



CARDIOCHILES ARUGOSUS. new species 



Female. — Length about 5.5 mm. Head and thorax black; eye 

 grayish black ; wings light fuliginous on about apical half, subhyaline 

 basally; legs ferruginous, coxae, fore and middle trochanters, hind 

 trochanters basally, and fore and middle femora basally, black; hind 

 tibia apically and apical four segments of fore and middle tarsi 

 blackish ; tibial spurs blackish, fore tibial spur ferruginous ; hind tarsus 

 black; abdomen ferruginous, first tergite black medially; ovipositor 

 sheath black. Antenna about 38-segmented, eye bare ; ocelli elevated ; 

 vertex smooth, polished; frons smooth, polished, and with a slight 

 depression below the anterior ocellus followed by a median longitudi- 

 nal elevation ; face about 2.50 times as wide as long, polished, with a 

 short median ridge above, its median line slightly elevated; clypeus 

 smooth and polished, its apical margin not notched; temple slightly 

 wider than eye in dorsal view; galea short. Posterior portion of 

 lateral face of pronotum rugose medially; median lobe of mesoscutum 



