162 PROCEEDINGS OP THE ACADEMY OF 



irregular than on primaries ; on hind margin a narrow black border, which 

 extends also along the costal margin to the common tawny band ; from its 

 anterior edge on the costa, a wavy black line crosses the disk and terminates 

 inside the abdominal margin ; upon the hind margin a series of yellow 

 lunules, the third from the anal angle largest and projected ; above these a 

 broad tawny band, edged anteriorly by the wavy black line, encloses a row 

 of six black spots, the middle one largest, the one in the anal angle long ; 

 abdominal margin paler than disk. 



Under side : primaries tawny, next the base showing faintly the black 

 markings of the upper side ; a small patch of black on inner margin ; hind 

 margin and apex pale brown, clouded and spotted on the apex with white ; 

 a marginal series of arrow-shaped spots of yellowish white, the third from the 

 inner angle and two next the apex largest ; anterior to these, the transverse 

 row of spots on upper side is reproduced faintly ; secondaries pale brown, 

 clouded in the disk and on hind margin with black ; a marginal series of un- 

 equal silver lunules ; above these a row of six black spots edged with yellow, 

 the first next the costa nearly obsolete, the second and third round, the fourth 

 and fifth semi-oval, and the sixth long ; the fourth faintly pupilled with white ; 

 across the middle of the wing an irregular silver band, and between this and 

 the base several silver spots, all edged with dark brown ; within the cell two 

 small yellow spots ; body above greenish- black, beneath white ; antenna? 

 brown, annulated with white ; club reddish-brown. 



Female. One-third larger than male, which it closely resembles ; the mar- 

 ginal spots on primaries beneath are long and attenuated ; the silver lunules 

 of secondaries take the form of a deeply crenated band ; a distinct silver pupil 

 in the fourth black spot. 



Illinois ; Missouri. 



Limenitis Weidemeyerii, nov. sp. Expands 2'6 inch. 



Male. Upper side brownish-black, with a broad common white band a little 

 beyond the middle, making an obtuse angle within on the primaries and taper- 

 ing towards the abdominal margin of secondaries, divided into long spots by 

 the nervures ; posterior to this band on secondaries an obsolete row of fulvous 

 spots ; within the hind margin of both wings a series of small white spots, 

 minute on secondaries ; between these and the band on costal margin of pri- 

 maries a short transverse row of four white spots, the second largest, the 

 fourth minute ; crenations white. 



Under side paler, with a common white band and four white spots on pri- 

 maries as above ; on secondaries a row of fulvous spots posterior to the band ; 

 a little within the hind margin of both wings a series of large lunules cut 

 transversely and unequally by a crenated black line parallel to the margin ; 

 these lunules are bluish-white except towards apex of primaries, where the 

 inner row is white ; on primaries a narrow ferruginous band upon the discal 

 arc, followed within the cell successively by blue atoms, a bluish-white band 

 and a ferruginous band, both narrow, transverse and oblique ; next the base 

 blue atoms ; costa ferruginous ; on secondaries the broad abdominal margin 

 is bluish-white ; the entire space between the band and the base is striped 

 transversely with white and bluish-white, divided into spots by the nervures, 

 with ferruginous lines between the stripes ; costa white ; body above black ; 

 beneath white, with a black stripe along the side of abdomen ; palpi and legs 

 white ; antenhse and club brownish-black. 



Rocky Mountains. From the collection of Mr. J. W. Weidemeyer. 



Satyrus silvestris, nov. sp. Expands 1*9 inch. 



Male. Upper side brown ; fringe same color ; behind and along the discal 

 cell of primaries a dark patch extending from the base half way to the apex ; 

 near the apex a small round black spot with a faint iris ; a black point near 

 the inner angle. Under side paler : primaries with a tinge of yellow ; two 



[July, 



