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 5.2 to 6.2 mm. long; combined face and clypeus about 

 1.36 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 0.3 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 0.72 its 

 long diameter in male, by about 0.65 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 2.31 as long as deep in male, about 2.21 as long as deep 

 in female; front spur of hind tibia about 3.3 as long as wide in male, 

 about 3.5 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 1.5 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. — Localities for 

 Exochus rutilatus. 



