502 
Lord Walsingham on 
(Group SEracoRis, Tr.) 
Penthina major, sp. n. 
AntenncB greyish fuscous, spotted above with white. Falpl 
pale fawn, the apical joint fuscous. Head and Thorax fawii-grey. 
Forev;ings fawn-brown, speckled with pale ochreous, with two 
pale ochreous transverse fasciae margined on both sides by shining 
silvery bands ; the apex is mottled with pale ochreous preceded by 
an angulated silvery band ; the first fascia is at one-third from the 
base, its inner margin slightly concave, its outer margin slightly 
bulging outw^ards on the cell ; the second fascia leaving the costal 
margin beyond the middle runs obliquely to the anal angle, the 
silvery bands which bound it being deflected inwards to the dorsal 
margin from about the lower angle of the cell, a few fawn-brown 
spots along the costal margin encroach upon the upper edge of the 
pale fasciae ; cilia white, with some grey shading at their base, 
especially around the apex. Exp. al., 23 mm. Hindvungs fawn- 
grey, with whitish cilia. Abdomen greyish fuscous, anal tuft 
ochreous. Legs white. 
Tyjpe. Mds. Wlsm. 
Eab. Colorado— Loveland, 5,000-10,000 ffc., 1891 
(Smith). 
Allied to 8. constellatana, Z., but the silvery markings 
confined to the margins of the fasciae, not scattered 
between them ; it is also a larger and more distinctly 
marked species. 
P^DisCA, Tr. 
Psedisca hyponomeutana, sp. n. (PI. XII., fig. 12.) 
Antennce, ^, biciliate (^), rather stout; white. Palpi 
moderately clothed, projecting slightly beyond the head ; apical 
joint short, drooping ; white. Head thickly clothed above and in 
front ; creamy white. Thorax shining white, with two lateral 
black spots posteriorly ; tegulae with a few black scales across their 
middle. Forewings with the costal margin straight, apical margin 
slightly oblique, anal angle rounded ; shining white sprinkled with 
distinct black angular spots to the number of about fifty : of these 
one only, at about one-sixth of the wing-length, is actually 
contiguous to the costal margin, others beyond, approach it very 
closely, but there is no apparent regularity in the arrangement of 
the spots, which are for the most part transversely elongate, a 
somewhat regular series of about ten extending from the base 
immediately below the fold ; a second series of about six below it, 
