276 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ni 



Abdominal tergites with rather even posterior white fasciae; legs dark brown, 

 only apical three-fourths of femora and knees light brown; r-m crossvein 

 present; ejaculatory apodeme as in pi. 13, fig. 104; aedeagus as in pi. 7, 

 fig. 42 (Arizona) boharti, new species 



18. Species with common Ogcodes pattern (pi. 5, fig. 29) 19 



Species with abdomen patterned in various ways, but not only with simple 



fasciae (pi. 5, fig. 30) 23 



19. Crossvein m-cu present; abdomen almost entirely black; only female holotype 



known (Utah) niger Cole 



Crossvein m-cu absent 20 



20. Thorax black to reddish black; humerus and postalar callus yellow to orange 



(Chile) chilensis Sabrosky 



Thorax black; humerus and postalar callus usually black or dark brown . 21 



21. Legs pale brownish yellow except for black coxae; aedeagus as in pi. 9, fig. 56 



(Canada and northern United States) borealis Cole 



Legs usually dark brown or black, if lighter colored, then at least basal two- 

 thirds of femora infuscated 22 



22. Legs black, except knees narrowly orange or brown; abdominal tergal pos- 



terior white fasciae usually narrow, covering about one-third of each seg- 

 ment; aedeagus about as in pi. 11, fig. 73 (northwestern America; United 



States to Alaska) melampus Loew 



Legs brown to deep yellow, usually basal two-thirds of femora, basal one- 

 fourth of tibiae, and all tarsi somewhat infuscated; abdominal tergal 

 posterior white fasciae narrow (in most females) to wide (in most males), 

 sometimes as wide as two-thirds length of each segment; aedeagus as in 

 pi. 11, fig. 73 (Canada to southern Mexico) eugonatus Loew 



23. Veins M2 and M4 absent (Chile) porteri Schlinger 



Veins M2 and M4 present 24 



24. Crossvein m-cu absent; abdomen mostly white with scattered brown spots 



(pi. 5, fig. 30) (California, British Columbia, Michigan, and Ontario). 



albiventris (Johnson) 

 Crossvein m-cu present (Chilean species) 25 



25. Vein Mi (although absent in the strict sense) appears to be present as a strong 



crease and veinlike apically; abdominal pile predominantly black; tergites 

 iii-v black on po.sterior halves; aedeagus as in pi. 9, fig. 59 (Juan Fernandez 



Islands, Chile) kuscheli Sabrosky 



Vein Ml entirely absent; abdominal pile whitish yellow; tergites iii-iv with 

 large brown triangular spots, the yellow lateral areas to these triangles 

 intersecting them and the lateral brown spots at the posterior margins 

 (Chile) triangularis Sabrosky 



Svibgenus Ogcodes Latreille 

 Ogcodes {Ogcodes) eugonatus Loew 



Plate figures 18, 73, 78, 94 



Oncodes eugonatus Loew, Berliner Ent. Zeit., vol. 16, p. 60, 1872. 



Ogcodes eugonatus, Cole, Trans. Amer. Ent. Soc, vol. 45, p. 62, 1919. — Sabrosky, 



Amer. Mid. Nat., vol. 31, p. 394, 1944; Amer. Mid. Nat., vol. 39, p. 426, 



pi. 2, figs. 12, 15, and 21, 1948. 

 Ogcodes pallidipennis, Cole, in part. Trans. Amer. Ent. Soc, vol. 45, p. 64, 1919 



(not Loew, 1872) . 



