ANNETTE F. BRAUN 
171 
This species is one of the earliest to appear in the spring; larvae 
become full grown by the middle of May; later generations occur 
in June and July and in September. The mines are especially 
common on the leaves of young saplings a few inches above the 
ground. 
The name prunifoIieUa used by Clemens in referring to the 
empty mines of this species is a nomen nudum. 
8. Nepticula intermedia new species 
Head black; ej'e-caps silvery white. Tliorax bronzy, base of fore wings 
plum-purple, followed by a shining silvery or golden fascia. Beyond this 
fascia the wing is dark brown, with but faint bronze reflections. A second 
silvery or golden fascia crosses the wing at two-thirds. Cilia silvery around 
the apex. Hind wings and cilia gray, with faint purple metallic reflections. 
Legs black. 
Expanse. — 3 to 3.5 mm. 
Localities. — Cincinnati, Ohio; Kentucky. 
Type material . — Holotype (writer’s collection); paratype 
(writer’s collection) . 
Two specimens bred from serpentine mines (Fig. 16) on leaves 
of sumac (Rhus spp.). The loosened epidermis is bright green at 
first, later yellowish, and is marked by a broad blackish frass line 
nearly as broad as the mine. Larva very bright green. Usually 
there are but two generations a year, larvae maturing in July 
overwintering, but occasionally a third generation appears. 
Chambers makes brief mention of these mines on sumac 
9. Nepticula diffasciae Braun 
Nepticula diffasciae Braun, Ent. News, xxi, 172, 1910. 
Tuft ochraceous; eye-caps and collar creamy white. Thorax and fore wings 
brownish black, the latter irrorated in the apical tliird. There are two pale 
fasciae; the first at one-third is creamy buff, the second at two-thirds is white, 
more shining and usually narrower than the first. Cilia whitish around the 
apex, gray at the tornus. Hind wings and cilia brownish. Abdomen brown 
at the base, dark gray behind. Legs brownish. 
Expanse. — 5.5 to 5.8 mm. 
Locality . — Dutch Flat, Placer County, California (Pilate). 
The mine (Fig. 17) on the upper side of leaves of an unidentified 
shrub, is a long tortuous tract, almost indistinguishable at first, 
later semitransparent, with scattered frass. The end of the mine 
is whitish and almost transparent. The cocoon is of a sordid 
' Psyche, iii, 66, 1880. 
TR.A.NS. AM. ENT. SOC., XLIII. 
2 
