3l8 TRANS. ST. LOUIS ACAD. SCIENCE. 



streaks of bright ferruginous enclosing a median, faintly bluish line; the 

 first pale fascia extending from costa to inner margin and forming two 

 indentations in the basal patch ; the second fascia, originating just be- 

 yond the middle in two oblique costal streaks which reach to the next cos- 

 tal streak beyond them, extending to the posterior margin near the anal 

 angle and giving off from its inner edge a branch along the cell, which 

 connects more or less distinctly with the first fascia, and a second branch 

 "which, at first running at right angles to the fascia and toward the inner 

 margin, suddenly bends before attaining that margin and extends to the 

 first fascia, with which it unites just below the median vein; towards the 

 apex three oblique costal streaks which converge towards the middle of 

 the posterior margin ; the fringes fuscous, darker at the apex and in the 

 middle, and with a narrow basal fuscous coincident line; the ground color 

 of the wing most distinct in the basal patch, the broad central band divided 

 into three bi'oad streaks and in an oblique patch extending inward from 

 below the middle of the posterior margin : secondaries fuscous, pale toward 

 the base, their fringes whitish with a dark basal coincident shade : under 

 surfaces silvery-fuscous, the primaries slightly tinged with coppery : legs 

 silvery-white, the anterior tibiae and the tarsi streaked with fucous above. 

 Abdomen above fuscous, beneath silvery-white. 



Described from two c?s bred from larvs feeding on plum leaves 

 at St. Louis, Mo. 



In the general color of the wings and the division of the central 

 band this species approaches Ex. nitidana Clem., but the basal 

 patch and central band of that species are pure brown. From 

 Ex. sericorana Walsm. it differs in the failure of the second 

 branch from the second fascia to attain the inner margin, and in 

 the extension of the two streaks to a union with the first fascia. 

 The blue line in the first fascia also is much narrower than that 

 represented in Walsingham's figure of Ex. sericorana. 



The general coloration of Ex. per?mindana Clem, at once 

 separates that species, which also has the second branch of the 

 second fascia extending to the inner margin. Otherwise the fas- 

 ciation is very similar. 



P.EDiscA GiGANTEANA, n. sp. — $. Expanse 34-3S mm. General color 

 white, with a large brown patch enclosing the anal angle and the ocellated 

 spot. Head white, antenna; testaceous. Thorax white : primaries white, 

 some fuscous dots on costa and some mottlings or abbreviated fasciae of 

 pale fuscous about the basal third of the wing between the cell and the 

 inner margin; the posterior third of the wing, including the apical angle 

 but not extending upon the costa, fuscous, with irregular spots and fasciae 

 of polished elevated scales and with white mottlings toward the apical 

 angle and posterior margin, the median terminal portion with some irre- 



