Lepidopterological Contributions. 369 



decorata, Saunders, is a form of Arctia nais, Walker, with red 

 secondaries, Dairy's figure having these yellowish. We have 

 received a second male specimen of A. mexicana, nob., from a 

 different locality in Mexico. This specimen merely differs from 

 the type, by its slightly greater expanse (1.35 inch.), and in 

 that the black terminate marks and spots on the secondaries 

 are, for the most part, wanting; this is a natural variation of 

 the species of this genus. From A. phalerata, Harris, the 

 Mexican species may be quickly distinguished by its red abdo- 

 men. In A. mexicana, the costae of both pair of wings are 

 tinged with ochreous yellow beneath. 



Ecpantheria, Ilubner. 

 Ecpantsicria Icucarcfioicics, n. s. 



(Plate 14, figs 3, ? 4, 2 ') 



Female. Primaries, white, crossed by six irregular dull blackish 

 macular bands faintly bordered by yellowish tinges. First (basal) 

 band consisting of three spots ; that on costa being largest, sub- 

 quadrate ; the third, on internal margin, greatly reduced. Second 

 (extra-basal) baud consisting of five spots, angulated on the disc. 

 Third (median) band, broad and prominent, consisting of black 

 sub quadrate patches, narrowly and neatly separated by the ner- 

 vules, which are covered with pale, yellowish white scales; two or 

 three smaller spots clustered at the base of the interspaces beyond 

 the discal cell. Fourth (extra discal) band composed of eight 

 reduced, narrow black spots, sinuate, flexuous. Fifth (sub-terminal) 

 band, resembling third but broader, composed of black, inter- 

 spacial, even patches, obsoletely and incompletely separated by the 

 yellowish white nervular scales ; the black patch on the interspace 

 between the second and third median nervules is much reduced, the 

 fourth band intruding at the place. The sixth (terminal) band is 

 composed of irregular, triangular, black, interspacial patches resting 

 on the extreme margin of the wing, and partially connected ; that 

 on the interspace between the third and fourth sub-nervules is 

 reduced to a small dot; that on the interspace above internal ner- 



