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U. S. NATIONAL MUSEUM BULLETIN 2 09 



3. Apical margin of clypeus very weakly convex; sides of pronotum with fine 



but rather strong punctures; forewing with a very faint postmedian infuscate 

 area; trochanters not infuscate above; teeth on dorsal edge of hind tibia a 



little stronger 2. rufescens (Banks) 



Apical margin of clypeus with an obtuse median angle that projects like a 

 weak, blunt tooth; sides of pronotum with fine, very weak punctures; 

 forewing with a definite postmedian infuscate area, in addition to the apical 

 infuscation; trochanters infuscate above; teeth on outer edge of hind tibia 

 very weak, subspecies of arizonica 4 



4. Abdomen mostly blackish la. arizonica arizonica (Banks) 



Abdomen rufous lb. arizonica concolor, new subspecies 



5. Second and following abdominal tergites mostly or entirely rufous. 



3a. faceta faceta (Cresson) 

 Second and following abdominal tergites entirely blackish, or blackish mar- 

 gined with fulvous 3b. faceta venlralis, new subspecies 



6. Tibiae and at least the hind femur rufous; nervulus beyond basal vein by 0.25 



to 0.4 the length of the nervulus; body pubescence very dense, giving a 



hoary appearance, subspecies of placita 7 



Tibiae and femora blackish; nervulus beyond basal vein by 0.5 to 0.7 the length 

 of the nervulus; body pubescence not unusually dense 8 



7. Basal part of femora and usually the trochanters rufous. 



4a. placita placita (Banks) 

 Basal part of femora and the trochanters infuscate. 



4b. placita sonorensis, new subspecies 

 Range: California; wings moderately infuscate; teeth on dorasl edge of hind 



tibia unusually strong and erect 7. fuscipennis, new species 



Range: east of the Rocky Mountains; wings weakly infuscate; teeth on dorsal 



edge of hind tibia not usually strong and erect 9 



Abdomen black 5. agenioides (Fox) 



Abdomen rufous 6. arcuata (Banks) 



8 



9 



1. Ageniella {Priophanes) arizonica (Banks) 



Male: Forewing 3.2 to 5.0 mm. long; nervulus beyond the basal 



vein by about 0.3 its length, 

 subspecies concolor.) 



(For coloration of the male, see under the 



Figure 98, — Locality for Ageniella arizonica arizonica. 



