ICHNEUMON-FLIES — GELINAE : MESOSTENINI 181 



9. Frons with only a weak pit or faint depression dorsolaterad of each antennal 



socket 10 



Frons with a distinct pit dorsolaterad of each antennal socket 11 



10. Coxae fulvous; occipital carina complete, strong at its juncture with hy- 



postomal carina; clypeus in profile with its apical half strongly concave. 



3. vancouverensis (Harrington) 



Coxae black; occipital carina obsolete below, its lower end not reaching 



hypostomal carina or very weak near hypostomal carina; clypeus in profile 



with its apical half moderately concave . . . 12. asyminetricus (Pratt) 



11. Lower end of occipital carina curved strongly mesad, approaching hypostomal 



carina at a right angle or somewhat recurved; hypostomal carina very 

 high; propodeum between its basal and apical carinae rather coarsely 

 rugulose and not distinctly punctate; coxae fulvous; tegula fulvous or 

 brownish fulvous, its front corner usually yellow . 8. pacificus (Cresson) 

 Lower end of occipital carina curved mesad less strongly, approaching hy- 

 postomal carina at 60° to 85°; hypostomal carina moderately high; pro- 

 podeum between basal and apical carinae rugoso-punctate or moderately 

 rugose; coxae fulvous or black 12 



12. Temple rather narrow, strongly sloping, and rather densely punctate, the 



temple in profile about 0.65 as long as eye; hairs on lower half of temple 

 about 0.5 as long as basal diameter of flagellum, rising at about 60°; cly- 

 peus a little narrower than in the species below; front corner of tegula 



usually white 6. tejonensis (Cresson) 



Temple moderately wide, moderately sloping, its punctures moderately 

 dense, the temple in profile about 0.8 to 1.1 as long as eye; hairs on lower 

 half of temple about 0.7 to 1.0 as long as basal diameter of flagellum, 

 rising at about 75°; clypeus a little wider; front corner of tegula usually 

 not white 13 



13. Punctures on lateral lobe of mesoscutum separated by about 0.8 their diam- 



eter; hypostomal carina about 2.5 as high as occipital carina. 



7. relativus (Cresson) 

 Punctures on lateral lobe of mesoscutum separated by about 1.5 their di- 

 ameter; hypostomal carina about the same height as occipital carina. 



11. syminetricus (Pratt) 



14. Apical tooth-bearing part of ovipositor about 0.35 as long as ovipositor 



sheath (fig. 328,n) ; thorax ferruginous .... 9. serraticaudus (Pratt) 

 Apical tooth-bearing part of ovipositor not more than 0.25 as long as ovi- 

 positor sheath; thorax black, ferruginous, or fulvous 15 



15. Lower edge of hind femur with a subapical, blunt, longitudinal ridge; middle 



femur suddenly narrowed before apex; tip of ovipositor distinctly upcurved 



(fig. 328,o) 10. calescens (Gravenhorst) 



Lower edge of hind femur normal, without a longitudinal ridge; middle femur 

 gradually narrowed toward apex 16 



16. Segments 2-4 of front tarsus narrower than front tibia 17 



Segments 2-4 of front tarsus much wider than front tibia 20 



17. Front wing yellowish, with two transverse brown bands (fig. 339) ; thorax 



fulvous 4. fasciatus, new species 



Front wing subhyaline to black, not banded; thorax black 20 



18. Frons with only a faint depression dorsolaterad of each antennal socket; 



ovipositor about 3.2 as long from nodus to apex as it is deep at nodus, its 

 lower valve with distinct teeth only very near the apex (fig. 328,h). 



3. vancouverensis (Harrington) 



