182 



Journal New York Entomological Society. t VoL xxvn. 



List of Species. 



Okanagana. 



cruentifera (Uhler) 

 magnified Davis 

 mariposa Davis 

 vandykei Van Duzee 

 lurida Davis 

 ornata Van Duzee 

 napa Davis 

 schaefferi Davis 

 occidentalis (Walker) 

 bella Davis 

 rimosa (Say) 

 canadensis (Provancher) 

 tristis Van Duzee 

 arctostaphyla Van Duzee 

 canescens Van Duzee 

 viridis Davis 

 aurantiaca Davis 

 fratercula Davis 

 oregona Davis 

 triangulate Davis 



synodica (Say) 



balli Davis 



rubrovenosa Davis 



vanduzeei Distant 



vandnzeei var. consobrina Distant 



vanduzeei var. califomica Distant 



striatipes (Haldeman) 



utahensis Davis 



hesperia (Uhler) 



pallidula Davis 



uncinata Van Duzee 



mercedita Davis 



minnta Davis 



(Males not known.) 

 hirsnta Davis 

 rotundifrons Davis 



Tibicinoides. 

 cupreo-sparsus (Uhler) 



Okanagodes. 

 gracilis Davis 



Key to the Species of the Genera Okanagana and Tibicinoides. 



A. Male uncus not hooked at extremity, sometimes sinuate. 

 B. Expanse of fore wings more than 50 mm. 



C. Base of fore and hind wings orange red more or less variegated 

 with black. 

 D. Outer edge of fore wings forming a somewhat straight line. 

 Very large species. 

 Pronotum all black ; mesonotum with orange, discal spots ; 

 front margin of fore wings bright orange to end of 

 radial cell, slightly darker beyond ; venation not thick- 

 ened ; blood-red at base of both pairs of wings; notch 

 in last ventral segment of female double. Expands 



70-75 mm cruentifera (Uhler) 



Pronotum all black ; mesonotum black except at sides ; 

 front margin of fore wings bright orange to first mar- 

 ginal cell ; venation thickened, especially about the 

 marginal cells ; notch in last ventral segment of female 

 simple. Expands about 80 mm. . .magnifica new species 

 "Pronotum narrowly edged on sides and posterior margins 

 with rufus ; venation not at all thickened. Expands 

 about 75 mm mariposa Davis 



