ICHNEUMON-FLIES OF AMERICA: 1. METOPIINAE 109 



3. Hind coxa blackish or dark brown, paler apically; hairs on temple rather 



uniformly distributed 10. podagricus (Gravenhorst) 



Hind coxa uniformly fulvous; hairs on temple very sparse or absent centrally, 

 denser near eye and occipital carina, (fig. 187,1) 4 



4. First abdominal tergite about 1.2 as long as wide; median longitudinal carinae 



of propodeum very broad and blunt (fig. 187,i) ; fourth tergite with more 



hairs; front wing 5.0 to 6.1 mm. long 9. chosis, new species 



First abdominal tergite about 1.6 as long as wide; median longitudinal cari- 

 nae of propodeum narrow and sharp (fig. 187, j); fourth tergite with fewer 

 hairs; front wing 3.4 to 5.6 mm. long 11. pallipes Holmgren 



5. Last segment of hind tarsus with a small, subapical, ventral tooth or flange 



on inner side which is surmounted by a small apically projecting or curving 



tuft of hairs 6 



Last segment of hind tarsus without a subapical ventral tooth, flange, or hair 

 tuft 9 



6. Subgenital plate rounded or weakly truncate apically; second segment of 



hind tarsus about 1.5 as long as wide 6. evexus, new species 



Subgenital plate with a broad median notch apically; second segment of hind 

 tarsus 2.0 to 2.5 as long as wide 7 



7. Nervellus subvertical, broken at about its lower 0.35; hind coxa often blackish 



or dark brown 5. rectus, new species 



Nervellus strongly antefurcal, broken at about its lower 0.2; hind coxa ful- 

 vous, very rarely brownish 8 



8. Second lateral area of propodeum defined, with its outer side about 1.9 as 



long as its inner side (fig. 187,a), with dense hairs; tegula usually fulvous. 



1. crassus, new species 



Second lateral area of propodeum usually not defined, the costula being 



absent or very incomplete, when defined its outer side only about 1.4 as 



long as its inner side (fig. 187,c), its surface with rather sparse hairs; tegula 



yellow 3. emarginalus (Say) 



9. Hind coxa largely or entirely black or blackish 10 



Hind coxa entirely fulvous 11 



10. Hind femur ferruginous, or sometimes brownish but not darker than its tibia; 



second segment of hind tarsus about 2.1 as long as wide; apical notch in 

 subgenital plate about 0.15 as deep as wide; median longitudinal carinae of 

 propodeum somewhat incurved subbasally (fig. 187, b) ; front wing 4.5 to 



6.5 mm. long 2. brunnipes (Cresson) 



Hind femur brownish, darker than the hind tibia; second segment of hind 

 tarsus about 2.8 as long as wide; apical notch in subgenital plate about 

 0.25 as deep as wide; median longitudinal carinae of propodeum straight 

 (fig. 187,g) ; front wing 3.5 to 4.5 mm. long ... 7. adustus, new species 



11. Costula absent or incomplete (fig. 187,d) ; hairs on hind tibia and tarsus of 



normal density and length, those on upper side of hind basitarsus about 



0.35 as long as depth of basitarsus 4. occidentis, new species 



Costula complete and strong (fig. 187,h) ; hairs on hind tibia and tarsus ex- 

 ceptionally sparse and long, those on upper side of hind basitarsus about 

 0.75 as long as depth of basitarsus 8. propinquus (Cresson) 



I. CRASSUS GROUP 



Punctures on face rather close and coarse, their interspaces usually 

 about 0.3 their diameter; costula usually present, at least as a stub 

 on lateral longitudinal carina; hairs on temple dense or moderately 



