52 



MEM01il6 OF THE NATIONAL ACADEMY OF SCIENCES. 



SPECIES INHABITIXG THE BRAZILl3tN Sl'BREGIOX. 



Adelocephala anthoiiilis. 

 Adelocephala wardi. 

 Adelocephala tristygma. 

 Adelocephala arpi. 

 Adelocephala fallax. 

 Adelocephala subaiif;iilata. 

 Adelocephala boisdiivalii. 

 Adelocepliala cadmu?. 

 Adelocephala leucostygma. 

 Adelocephala crocata. 

 Adelocephala argyracantha (Paraguay). 

 Adelocephala jucunda. 

 Adelocephala brevis. 

 Adelocephala leucantha. 

 Adelocephala janeira. 

 Adelocephala invalida. 

 Adelocephala Columbia (Colombia). 

 Adelocephala acuta (Venezuela). 

 Crinodes bellatrix. 



SPECIES IXIUBITIXG 



Eacles imperialis. 



Eacles eminen.« (Loja, Ecuador). 



Citheronia princeps. 



Citheronia principalis. 



Citheronia laocoon (ixion). 



Citheronia phoronea. 



Citheronia aroa. var. of phoronea (Venezuela). 



Citheronia ducalis. 



Citheronia cacicus. 



Citheronia brissotii. 



Citheronia leona (Paraguay and Uraguay). 



Citheronia magnifica (IMexico to Paraguay). 



Citheronia suffusa (Liinas, ). 



Citheronia vogleri (Cordova, Argentina). 



Syssphinx inolina. 



Syssphinx ? basirei. 



? Anisota walkeri. , 



? Anisota bilineata (Uraguay). 



CENTRAL AMERICA (.MEXICO) 



Adelocephala jason. Citheronia mexicana. 



Adelocephala isias. Citheronia magnifica. 



Adelocephala albolineata. Citheronia splendens. 



Adelocephala leucostygina. Citheronia azteca. 



Adelocephala hcegei. Citheronia aroa. ( var. 



Adelocephala boisduvalii. Anisota suprema. 



Adelocephala quadrilineata. Anisota dissimilis. 



Eacles imperialis. Anisota assimilis. 



Eacles orinondei. Syssphinx molina. 

 Eacles masoni. 



SPECIES IKHABITINO AMERICA NORTH OF MEXICO. 



' of phoronea). 



Adelocephala bicolor. 

 Adelocephala bisecta. 

 Adelocephala albolineata. 

 Adelocephala heiligbrodtii. 

 Adelocephala quadrilineata. 

 Adelocephala isias. 

 Eacles imperialis. 



Anisota virginiensis. 

 Anisota stigma. 

 Anisota consularis. 

 Anisota senatoria. 

 An'sota rubicunda. 

 Citheronia regalis. 

 Citheronia sepulcralis. 



In the Arctogteic realm the group is chiefly confined to the ea.stern half of tlie Mexican (Sonoran) 

 region, i. e., east of the one hundredth meridian, two species {Aflelucephala hrlllghrodfi! and 

 A. isias), extending from central Texa.s, in the valley of the Colorado River, westward into New 

 Mexico and Arizona, prol)ably the region drained by the upper Gila River, i. e., in tho.sc hot 

 extensions of the Lower Austral life-zone which pass up the upper Pecos and Rio Grande valleys 

 to about latitude 33 . 



These are the only species of the subfamily which have yet been detected west of about the 

 one hundredth meridian, and thej' are evidently migrants from the Gulf region of Texas. The 

 group, then, witliin the limits of the North American portion of the Arctogwic realm is confined 

 to the Anstroripariiin j)rovinces (Lower Austral of Merriam) and also the Appalachian (Upper 

 Austral of Merriam) and upper Appalachian or Canadian province (transition of IMerriam). while 

 a few forms {Anisota rnhicundd and vin/iiu'msis) cross into the Boreal province, these two 

 species occurring at Franconia, N. H., which rises into that zone. 



It is worthy of note that with but two exceptions (^1. In Hiijliniihii and ^1. Jx'ins) none of 

 the group occur in America north of Mexico west of the one hundredth meridian, the Rocky 

 Mountain region and the Pacific coast being destitute of any of the group. 



