154 



Armature a long curved spine, wings white . Seirarctia. 



Armature a short spine on each side of tip Estigmene. 



Armature a small spur ; O ant^ennre simple Hyphantria. 



Median spurs of hind tibia- present. 

 Antennte of rf simple. 



Vestiture of thorax scaly, appressed . 

 Vestiture hairy, short, erect. 

 Apex of primaries acuminate 

 Apex of primaries square .... 

 Antennas of rj pectinate. 



Wings moderate, size medium. 

 Ocelli close to margin of eye 

 Ocelli distant from margin. 



Front narrowed above and below 

 Front square, not narrrowed . 

 Wings broad, size large .... 

 \'ein lO from subcostal on cell. 

 Accessory cell wanting. 



Wings broad, size large .... 



Wings moderate, smaller .... 



Wings elongate, size very small . 

 Acessory cell present. 



Spurs of posterior tibine long. 

 Size small ; body rather slender 

 .Size large ; body more robust 

 Spurs of posterior tibia' very short 



Subfamily Cydosiinee. 



(ienus Cydosia Jl'i-shcooJ. 



1S41 — Wkstwood, Jardine Nat. Lib., \'ol. XX.WII, p. 193. 

 188S— Smith, I'roc. U. S. Nat. Mus., Vol. .\I, jx 187. 



C. nobiliteila Cra/nrr. 



1782 — Ckamkr, Tap. E.NOt., \ol. III. pi. 264, fig. G. 



imitella. Stretch. 



1873 — Stkktcii, Zyg. and liomb. N. A., Vol. I, p. 163. 



var. aurivitta Giotc &■' Robinson. 



1869 — (;k()1K(!v; Udiii.NSoN, Trans. Am. Eat. Soc, \'(>1. If, p. 186 



lirownish black with a blue reflection, secondaries paler. 

 I'jkI of abdomen ocherous brown in . . Primaries crossed by 

 two i^olden brown bands, the outer arcuate opposite the cell, 

 and a sub(|uadrate golden brt)wn discal spot. Between these 

 markings are a series of large rountled white spots in foiu" or five 

 rows, two or three spots in a row. These may be entirely absent 

 (var. aurivitta). ivxpanse, 20 — 32 mm. 



Habitat., CTd)a, Mexico, Texas. 



Arachnis. 



Pyrrharctia. 

 Phragmatobia. 



Spilosoma. 



Elpis. 

 Neoarctia. 

 Platarctia. 



Arctia. 



Eyprepia. 



Kodiosoma. 



Parasemia. 



Hypercompa. 



Ectypia. 



