154 — 



Aimature a short spine on each side of tip 

 Armature a small spur ; 9 antennce simple 

 Median spurs of hind tibi?e present. 

 Antenna; of c5 simple. 



Vestiture of thorax scaly, appressed 

 Vestiture hairy, short, erect. 

 Apex of primaries acuminate 

 Apex of primal ies square . . . . 



Antennre of (5' peciinale. 



Wings moderate, size medium. 

 Ocelli close to margin of eye 

 Ocelli distant from margin. 



Front narrowed above and below 

 Front square, not narrowed . 

 Wings broad, size large ..... 

 Vein lo from subcostal on cell. 

 Accessory cell wanting. 

 Wings broad, size laige . 



Wings moderate, smaller . . . . . 



W'ings elongate, size very small 

 Accessory cell present. 



Spurs of posterior tibia; long. 

 Size small ; body ratlier slender 

 Size large ; body more robust . . , . 

 Spurs of posterior tibiae very short . 



Subfamily Cydosiinas. 



Genus Cydosia Westwood. 

 1841— Westwood, Jardine Nat. Lib., Vol. XXXVII, p. 



Estigmene. 

 Hyphantria. 



. Arachnis. 



, Pyrrharctia. 

 PhragmatobU. 



Spilosoma. 



Elpis. 

 Neoarctia. 

 Platarctia. 



Arctia. 



Eyprepia. 



Kodiosoma. 



Parasemia. 



Hypercompa. 



Ectypia. 



193- 



1S88— Smith, Proc U. S. Nat. Mus., Vol. XI, p. 187. 

 C. nobilitella Crai/idr. 



1782 — Cramer, Pap. Exot. , Vol. Ill, pi. 264, fig. G. 



1873 — imitllla SrRETCH, Zyg. and Bomb. N. A., Vol. I, p. 163. 

 var. auriviitta Grote &= Robinson. 



1869 — Grote & Robinson, Trans. Am. Ent. Soc, Vol. II, p. 186. 

 Brownish black with a blue reflection, secondaries paler. End 

 of abdomen ocherous brown in <^. Primaries crossed by two 

 golden brown bands, the outer arcuate opposite the cell, and a 

 subquadrate golden brown discal spot. Between these markings 

 are a series of large rounded white spots in four or five rows, two 

 or three spots in a row. These may be entirely absent (var. 

 aiirivitta). Expanse, 20 — 32 mm. 

 Habitat, Cuba, Mexico, Texas. 



Genus Cerathosia Smith. 

 1887 — Smith, Ent. Amer., Vol. Ill, p. 79. 

 C. tricolor Smith. 



1887 — Smith, Ent. Amer., Vol. Ill, p. 79, 



Thorax and primaries silky white with many black dots, not 



forming distinct rows except at outer margin of primaries where 



they form an outer irregular subterminal and terminal one. Abdomen 



and secondaries immaculate, pale straw yellow. Expanse, 25 mm, 



Habitat., Texas. 



