ICHNEUMON-FLIES OF AMERICA: 1. METOPIINAE 91 



with irregular swellings and close, moderate sized, deep punctures; 

 galea and glossa as in M. ultimatus; second segment of maxillary 

 palpus only weakly swollen, in the female about 3.5 as long as wide; 

 tegula rather strongly and densely punctate; punctures on meso- 

 pleurum coarse, strong, and subadjacent; punctures on metapleurum 

 very coarse, separated by about 0.5 their diameter; prepectal carina 

 crossing sternaulus but absent more dorsad; scutellum shorter than 

 in other species of the subgenus Cultrarius, about 0.56 as long as wid«; 

 claws of front and middle tarsi pectinate on their basal 0.25 ± ; first 

 tergite in profile with a long, straight anterodorsal face but no dorsal 

 face (All other species of the subgenus except secundus have the antero- 

 dorsal face about as long as or shorter than the dorsal face.); pro- 

 podeum in profile almost flat, sharply declivous; ovipositor heavy, 

 compressed, about as deep as hind tibia, about 3.5 as long as the apical 

 depth of abdomen and 0.8 as long as abdomen; valvifers almost as 

 long as ovipositor, which permits a folding of the ovipositor within 

 the subgenital plate leaving little of it exposed, or when exserted 

 the ovipositor and its valvifers give the "geniculate" appearance 

 ascribed by Davis to this species when he based his genus Cultrarius 

 on it. The species M. secundus has an ovipositor intermediate 

 between that of M. rileyi and those of the other species of the subgenus. 



Black. Upper lateral part of face, interantennal process, side of 

 frons, short stripe along upper margin of pronotum, subtegular ridge, 

 posterior half of metapleurum and of scutellum, postscutellum, 

 apicolateral spot on propodeum, posterior 0.25 ± of first five tergites, 

 and posterior 0.35 of sixth tergite, yellow; legs dark reddish brown, 

 their trochanters paler and the apex of femora, upper side of front 

 and middle tibiae, and extreme base of hind tibia, yellow; wings pale 

 brown, the front third of the front wing darker brown. 



Specimens: 9, Douglas Co., Kans., Sept. 29, 1948, R. H. Beamer 

 (Lawrence). 9, Lawrence, Kans., Oct. 1, 1952, G. Heinrich (Hein- 

 rich). 9 (lectotype), Riley Co., Kans., September, C. L. Marlatt 

 (Washington). 9, Riley Co., Kans., October, C. L. Marlatt (Wash- 

 ington). d\ West Point, Nebr., September 1887 (Philadelphia). 

 9, South Dakota, C. L. Marlatt (Washington). 9, South Dakota 

 (Philadelphia). 



This is a species of the Great Plains. It is adult in fall. 



4. Subgenus Peltales, new subgenus 



Figure 167,b 



Facial shield escutcheon-shaped, its upper edge almost straight but 

 a little indented below each antenna, its lower edges roundly curved 

 to the basal point, its disc without a median carina; interantennal 

 process triangular to erect rectangular, depressed medially and with 



