PiEDISCA. 
47 
towards the ocellated spot; the third and fifth from the apex^ converging below the fourth; 
and the extreme apical one pointing inwards_, and forming Avitli the one next to it a hollow 
triangle; the ocellated spot is margined on both sides with shining metallic silvery white, 
most conspicuously on its inner side ; a streak of the same runs across the middle, dividing 
a black spot below from a slender black line above it : the cilia are ochreous, profusely 
irrorated with fuscous scales except at the points ; and there is a patch of similar scales above 
the ocellated spot. Hind wings yellowish grey, slightly dotted with darker grey towards the 
apex. In the male of this species the fore wings are slightly Avider, the apex less acutely 
produced. Type Expanse of wings 18-19 millims. 
North America. From Mr. Carter's collection. I have also met with this species in 
some abundance in California. 
Psedisca bipunctella. (Plate LXXI. fig. 1 .) 
Affa bipuncteUa, Wall: Cat. Lej). Het. xxvii. p. 202. 
Ptedisca worthingtoniaua, Fernald, Can. Eat. x. p. 83. 
Palpi projecting more than the length of the head beyond it ; the second joint freely 
clothed, increasing in size towards the apex; apical joint tapering, exposed; pale yellowish, 
touched with bi'own towards the base : head and thorax pale yellow ; antennas brownish. 
Fore wings — rather less than three times as long as wide, with the costa nearly straight, only 
slightly raised in the middle ; a costal fold in the male, not closely appressed, reaching nearly 
to the middle, with a tuft of long hairs arising from its base, usually concealed beneath it, 
but apparently capable of elevation ; tlie apex subacute ; apical margin oblique, scarcely 
convex — pale straw-yellow, with a small brownish spot at the end of the cell, diffused into a 
faint longitudinal ferruginous shade before and beyond it. Hind wings brownish grey ; cilia 
paler. Underside of the fore wings shaded with fuscous. The first pair of tarsi broAvnish, 
the others Avith the abdomen and anal tuft Avhitish grey ; the thorax and abdomen unusually 
stout. The proboscis is not " obsolete,^'' as stated by Walker in creating the genus Affa for 
the reception of this specimen. Type J . Expanse of wings 40 millims., from palpi to anal 
tuft inclusive 18 millims. 
Fernald gives North Illinois as the habitat of this species. 
Paedisca grandiflavana. (Plate LXXI. fig. 2.) 
Head, palpi, antennje, and thorax pale yellow ; palpi more than twice the length of the 
head. Fore wings — little more than twice as long as Avide, the costa evenly arched, apical 
margin rather oblique ; male with an appressed subconvex costal fold at the base — yellow, 
with numerous olivaceous fuscous spots mixed with shining metallic ochreous scales ; these 
spots seem to follow no fixed method of arrangement, but are somewhat grouped before the 
middle of the Aving beloAV the cell, and have perhaps a tendency to run in lines sloping 
obliquely outwards from beyond the middle of the costa, and bending parallel with the apical 
