ICHNEUMON-FLIES OF AMERICA: 1. METOPIINAE 



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Figure 178. — Heads: a-1, species of Chorinaeus, 9 ; m-o, species of Trieces, $ 



a, C. longicalar pleturus i, C. funebris divisus 



b, C. longicalar pleturus j, C. recurvus 



c, C. aequalis k, C. labiosus 



d, C. excessorius 1, C. emorsus 



e, C. calif ornicus m, T. costatus 



f, C. opacitas n, T. flavifrons 



g, C. constricius o, T. teres 

 h, C. funebris carinatus 



