ANNETTE F. BRAUN 
173 
fuscous spot which is sometimes faintly connected with the dorsum by a few 
scattered fuscous scales. Following the pale basal area, a broad dark brown 
band crosses the wing, succeeded by a narrower silvery white fascia. The^apical 
third of the wing is dark brown, except the cilia at the apex which are pure 
white. Hind wings and cilia gray. Legs buff, except posterior tibiae and 
basal segments of tarsi which are fuscous. Abdomen fuscous above, buff be- 
neath. 
Expanse. — 3.5 mm. 
Localities. — Cincinnati, Ohio, June 15 and August 28; Oak 
Station, Allegheny County, Pennsylvania (Alarloff), i\Iay 25. 
Type material . — Holotype (writer’s collection); paratype 
(writer’s collection) ; paratype (Alarlotf collection). 
12. Nepticula rhoifoliella Braun 
NepticuJa rhoifoliella Braun, Journ. Gin. Soc. Xat. Hist., xxi, 93, 1912. 
Head black; eye-caps silvery w'hite. Thorax blackish purple. Fore 
wings very lustrous, base of the costa plum-purple. A large semi-elliptical 
patch of scales just beyond the base of the wing and resting on the dorsum, but 
not reaching to the extreme costa, is deep brilliant golden, shading along its 
edges into reddish bronze. This golden patch, wdiile it does not constitute a 
definitely limited marking, is nevertheless distinctly differentiated from the 
rest of the wdng. Beyond this the wing is deep purple wdth bronze reflections, 
crossed at three-fifths by a straight shining silvery or pale golden fascia. Ciha 
of the general hue, the tips but little paler around the apex. Hind wings and 
cilia gray. Legs black, except the tibiae and tarsi of the middle pair, which are 
silver}'. Abdomen blackish above, somewhat paler beneath. 
Expanse. — 3.5 mm. 
Localities. — Ohio; Kentucky; St. Louis, ^Missouri (Aliss Murt- 
felclt). 
The larvae make contorted serpentine mines (Fig. 34) on the 
upper side of leaves of poison ivy {Rhus toxicodendron). The 
loosened epidermis is pale brownish yellow and the frass is dis- 
persed, in most places, throughout the entire breadth of the mine. 
Cocoon brown. 
There are three generations; mature larvae may be found in 
June, toward the end of July and in September. 
This species is very distinct from any other species. The 
golden patch of scales, standing out even to the naked eye as paler 
and more lustrous than the remainder of the wing, immediately 
identifies it. 
TR.\XS. ,\M. EXT. SOC., XLIII. 
