EXPLANATION OF PLATES 



Plate 1 



Figure 1, Chirodamus pyrrhotnelas 9 ; 2, Pepsis thisbe 9 ; 3, Hemipepsis usiulata ochroptera 

 9 ; 4, Priocnessiis nebulosus 9 ; 5, Priocnemioides austrinus austrinus 9 ; 6, Cryptocheilus 

 idoneum birkmanni 9 ; 7, Priocnemis (Priocnemissus) minorata 9 ; 8, Calicurgus hyalinatus 

 alienatus 9 ; 9, Dipogon (Deuteragenia) sayi sayi 9 ; 10, Dipogon (Dipogon) brevis brevis 9 ; 

 11, Auplopus nigrellus 9 ! 12, Notocyphus dorsalis arizonirus cT; 13, Minagenia clypeata 9 ; 

 14, Cernpales maculata fraterna 9 • 



Plate 2 



Figure 15, Chirodamus maculipennis 9 ; 16, Priocnessus apache 9 ; 17, Priocnemioides 

 angusticeps 9 ; 18, Priocnemioides unifasciatus unifasciatus 9 ; 19, Priocnemioides uni- 

 fasciatus californicus 9 ; 20, Cryptocheilus terminatum lerminatum 9 ; 21, Priocnemis (Sphicto- 

 stethus) pretiosa 9 ; 22, Priocnemis {Priocnemis) germana 9 ; 23, Priocnemis {Priocnemis) 

 scitula scitula 9 ; 24, Priocnemis {Priocnemis) hestia 9 ; 25, Priocnemis {Priocnemis) minus- 

 cula^ ; 26, Dipogon {Deuteragenia) pulchripennis 9 ; 27, Dipogon {Deuteragenia) papago 

 anomalus 9 ; 28, Dipogon {Deuteragenia) sayi nigrior 9 (type); 29, Dipogon {Dipogon) graeni- 

 cheri atratus 9 (type); 30, Auplopus architectus architectus 9 ; 31, Ageniella {Priophanes) 

 facetafaceta 9 ; 32, Ageniella {Ageniella) conflicta 9 ; 33, Ageniella {Ageniella) accepta 9 ; 

 34, Ageniella {Ageniella) blaisdelli 9 • 



Plate 3 



Figure 35, M. congrua; 36, M. lata (type); 37, M. clypeata; 38, M. osoria; 39, M. montis- 

 dorsa, \-ariety with long squama; 40, M. montisdorsa, variet}' with short squama. 



Plate 4 



Figure 41, M. julia, variety with long squama; 42, M. julia, variety with long squama; 

 43, M. julia, variety with short squama; 44, M. lata, subgenital plate of type; 45, M. osoria, 

 subgenital plate; 46, M. congrua, subgenital plate; 47, M. julia, subgenital plate; 48, M. 

 montisdorsa, subgenital plate. 



