Sept 1834.] 



Neumcegen & Dyar. N. A. Bomfjyces. 



121 



Family SATURNIID^. 



Sv/iopsis of subfainiUes. 



AntenriK bipectinate doubly, at least in the (^ 

 Antenna never bipectinate doubly .... 



Synopsis of genera. 



Secondaries with one distinct internal vein. 

 Discal cells open. 



Attacinae 

 Lemoniinse 



:} 



Philosatnia. 



Attacus. 

 Samia. 



Callosamia. 



Agapema. 

 Tropaea. 



Abdomen tufted ....... 



Abdomen untufted. 



Antennffi of both sexes equally doubly bipectinated. 



Wings produced at apices and elongate; secondaries 

 greatly exceeding abdomen, discal spots 

 hyaline ...... 



Wings less elongate, more rounded, spots opaque 

 Pectinations of 9 antenna; with the upper branch the 

 shorter ....... 



Discal cells closed. 



Antennae pectinated in both sexes. 



Antennre of 9 doubly bipectinated. 



Both branches equal in length in 9 • 

 The upper branch shorter than the lower in 9 • 

 Secondaries tailed .... 



Secondaries angulated at apex and middle of outer 



margin Telea. 



Antennae of 9 singly bipectinated, the upper branches reduced 



to serrations Saturnia. 



Antenna; of 9 serrate or simple. 



Secondaries ocellate ...... Automeris. 



Secondaries not ocellate ...... Thauma. 



Secondaries with two internal veins. 



Antenna; of (^ doubly bipectinated ...... Coloradia. 



Antennae of (^ singly bipectinated. 



Vein 5 from the discal cross vein ..... Lemonia.* 



Vein 5 from apex of cell on both wings. 



Antennre of 9 pectinated Hemileuca. 



Antenna; of 9 serrate or very shortly pectinated . Pseudohazis. 



Subfamily Attacinse. 



Gentis Philosamia Grote. 

 1874— Groie. Troc. Am. Phil. Soc, Vol. XIV, p. 258. 

 P. cynthia Dniry. 



i-jTi — Aitactis cynthia Drury, 111. Ex. Ent., Vol. II, pi. 6, f. 2. 



1787 — IBoinhyx aurolus Fabricius, Mant. Ins.. Vol. II, p. loS. 



1862 — Saturnia insularis VoLLENHOVKN. Rev. Zool. (2), Vol. XIV, p. 338, 



A European genus. Type Bombyx diiini Linn. 



