52 



MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



SPECIES IXIIABITIXG THE BRAZILIAN" SUBREGION. 



Adelocephala anthonilis. 

 Atlelocephala ^vardi. 

 Adelocephala tristygma. 

 Adelocephala arpi. 

 Adelocephala fallax. 

 A<lelocephala subangulata. 

 Adeloeejihala Ijoisduvalii. 

 Adelocephala cadinus. 

 Adelocephala leucostj'gma. 

 Adelocephala crocata. 

 Adelocephala argyracantha (Paraguay). 

 Adelocephala jueunda. 

 Adelocephala brevis. 

 Adelocephala leucantha. 

 Adelocephala janeira. 

 Adelocephala invalida. 

 Adelocephala coluinljia (Colombia). 

 Adelocephala acuta (Venezuela). 

 Crinodes bellatrix. 



SPECIES INHABITING 



Eacles imperialis. 



Eacles eniinens (Loja, Ecuador)- 



Citheroiiia princeps. 



Citheronia principalis. 



Citheronia laocoon (ixion). 



Citheronia phoronea. 



Citheronia aroa. var. of phoronea (Venezuela). 



Citheronia ducalis. 



Citheronia cacicus. 



Citht^onia brissotii. 



Citheronia leona (Paraguay and Uraguay). 



Citheronia magnitica (Mexico to Paraguay). 



Citheronia suffusa (Limas, ). 



Citheronia vogleri (Cordova, Argentina). 



Syssphinx molina. 



Syssphinx ? Ijasirei. 



? Anisota walked. 



? Anisota bilineata (Uraguay). 



CENTRAL AMERICA (MEXICO) 



Adelocephala jason. 

 Adelocephala isias. 

 Adelocephala albolineata. 

 Adelocephala leueostygma. 

 Adelocephala hoegei. 

 Adelocephala boisduvalii. 

 Adelocephala quadrilineata. 

 Eacles imperialis. 

 Eacles orniondei. 

 Eacles masoni. 



SPECIES INHABITING AMERICA NORTH OF MEXICO 



Citheronia mexicana. 

 Citheronia magnitica. 

 Citlieronia splendens. 

 Citheronia azteca. 

 Citheronia aroa. ( var. 

 Anisota suprema. 

 Anisota dissimilis. 

 Anisota assimilis. 

 Syssphinx molina. 



' 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 Arctogivic realm the group is chiefly confined to the eastern half of the Mexican (Sonoran) 

 region, i. e., east of the one hundredth meridian, two species (Adelocephala helllylmxltii and 

 A. isias), extending from central Texas, in the vallej' of the Colorado River, westward into New 

 Mexico and Arizona, probaV)ly the region drained by the upper Gila River, i. e., in those hot 

 extensions of the Lower Austral life-zone which pass up the upper Pecos and Rio Grande valle3's 

 to about latitude 33"^. 



These are the onl}' species of the subfamily which have yet been detected west of about the 

 one liundredth meridian, and they are evidently migrants from the Gulf region of Texas. The 

 group, then, within the limits of the North American portion of the Arctogsvic realm is confined 

 to the Austroripariiui provinces (Lower Austral of jVIerriam) and also the Appalachian (Upper 

 Austral of Merriam) and upper Appalachian or Canadian province (transition of ]\Icri-iam), while 

 a few forms {Anisota ruhicimda and virginieiisis) 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. Jn iliylmnlti! and ^1. isias) 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. 



