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U. S. NATIONAL MUSEUM BULLETIN 216 



S t U 



Figure 189. — Mandibles of species of Exochus, 9 (except as noted): 



a, mitratus orias 



b, pictus xanthopsis 



c, gravipes 



d, montivagus 



e, flavifrontalis 



f, atriceps atriceps 



g, hulcatus 



h, annulicrus 



i, evetriae 



j, hiulcus 



k, nigripalpis tectulum 



1, tenebrosus 



m, albifrons 



n, rutilatus 



o, armillosus 

 p, brutus 

 q, virgatifrons 

 r, ferrugineus 

 s, mesorufus 

 t, genualis,tf 

 u, peroniae 



