. Bulletin - United States National Museum. Science. ICHNEUMON-FLIES OF AMERICA: 1. METOPIINAE 225 This species is transcontinental, mostly in the Transition and Upper Austral zones. Adults occur around deciduous trees and bushes and are on the wing from mid-spring to early fall. In collections, it is the commonest Nearctic species of the genus. 27. Exochus rutilatus, new species Figures 189,n; 193,h Front wing to mm. long; combined face and clypeus about as high as wide, in a vertical direction moderately and evenly convex but with the clypeus weakly bulging, in a horizontal dire
. Bulletin - United States National Museum. Science. ICHNEUMON-FLIES OF AMERICA: 1. METOPIINAE 225 This species is transcontinental, mostly in the Transition and Upper Austral zones. Adults occur around deciduous trees and bushes and are on the wing from mid-spring to early fall. In collections, it is the commonest Nearctic species of the genus. 27. Exochus rutilatus, new species Figures 189,n; 193,h Front wing to mm. long; combined face and clypeus about as high as wide, in a vertical direction moderately and evenly convex but with the clypeus weakly bulging, in a horizontal direction with the same convexity as vertically; punctures of face very coarse, strong, separated by about their diameter; punctures on clypeus a little sparser than those on face; apical angle of interantennal proc- ess about 100 degrees; median swelling of frons weak but rather dis- tinctly delimited; hind ocellus separated from eye by about its long diameter in male, by about its long diameter in female; median half of clypeal margin truncate or weakly concave; mandible with coarse, rather sparse punctures, basally rather broad, evenly tapered to a moderately narrow apex, its lower tooth small; costula represented by short stubs, rarely subcomplete; second lateral area of propodeum with a few hairs basally and usually apicolaterally, the rest bare; areola bounded laterally by broad, flat, strong carinae; hind femur about as long as deep in male, about as long as deep in female; front spur of hind tibia about as long as wide in male, about as long as wide in female; punctures on second abdominal tergite of moderate size, deep, medially very sparse or absent, sub- laterally separated by about their diameter; male clasper broad, with dense hairs, obliquely narrowed from below to a narrowly rounded apex. Black. Face, usually narrow orbits on lower half of frons, large spot at top of eye, cheek, adjacent temple, clypeus, mouth parts, Figure 133.—
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