MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 
171 
Nerice bidentata Walker. 
(1*1. VII. 15.) 
Nerice Indentata Walk.^ Cat. Lep. Hr. Mus., v, p. 1076, 1885. 
Pack., Proc. Ent. Soc. Phil,, iii, p. 3.58, 1861. 
Grute, Check List X. Amer. Moths, p. 19, 1882. 
Marlatt, Traua. of 20th and 21sfc meetiugs of Kansas Acad. Sc. for 1887-88, xi, p. 110, 1889. 
Pack., Fifth Kep. F. S. Eut. Comm. lus. Inj. Forest and Shade Trees, p. 267, 1890. 
Smith, List Lep. Bor. Amer., p. 30, 1891. 
Kirby, Syu. Cat. Lep. Bor. Amer., i, p. 487, 1892. 
Neiirn. and Dyar, Trans. Amer. Eut. Soc., xxi, p. 187, June, 1894; Jour. N. Y, Ent. Soc., ii, 
p. 114, Sept., 1894. 
* Lai'va. 
(Pk XIX, hg. 4, and PI. XXIII, figs. 1, la, \h, Ic, Id.) 
Marlatt, Trans. 20th and 21st meetings Kansas Acad. Sc. for 1887-88, xi, ji. 110, 1889. (Figs, of egg, larva, 
pupa and moth.) 
Pac*kard, Proc. Host. Soc. Nat. Hist., xxiv, p. 525, 1890. 
Soule, Psyche, vi, p. 276, .Inue, 1892. (Egg, five larval stages, and pupa described.) 
Moth , — Three S . Head, protliorax, and thoracic tuft sable-brown, the rest of tbe thorax and 
the internal border of the fore wings cinereous, edged in front with silvery white; this latter 
portion of the wing is twice <leeply indented by an inner, small, rounded tooth and an outer, large, 
broadly triangular projection. The dark brown median portion shades into cinereous toward the 
costo apical portion ; two short oblique brown lines margined below with, cinereous are situated, 
each in an intervenular space, just above the middle of the outer margin. The hind wings, as well as 
both pairs beneath, are very light brown, A faint median diffuse darker line cro.sses both wings. 
Length of body, ^ , 15 mm.; expanse of wings, S , 4i) mm. 
Effg. — “0.0 by 0.55 mm. Shape, hemispherical, with a broad flattened base, irregularly 
encircled by a whitish cement fastening to the leaf. Surface shining, apparently smooth, but 
when highly maguifled is found to be covered with raised lines inclosing minute polygonal, usually 
six-sided, areas. Color, honey-yellow; after hatching, nearly white.” (Marlatt.) “Very like the 
eggof Nadata gihbom.'^^ (SOule.) (For Larval stages 
I-IV see Appendix A.) 
Larva. — “Length, 1.25 inches. General color, 
polished bluish green. Head narrower above than 
below and larger than segment 1; head of the same 
polished green hue as the body, with four perxiendic- 
ular silvery green lines, the two outer ones running 
parallel to the triangular pie(^e and tlien taking its 
V-shaped form. A row — four to six — of minute black 
eye-siiots at base of ])alpi. Three thoracic segments, 
above pale silvery green, interrupted, however, by a 
straight dorsal and wavy subdorsal line of the dark 
bluisli green general color. Segments 4 to 11, inclu- 
sive, each with a large anteriorly directed proniinence 
ending in a bifid ridge, the incision being transverse, 
tbe anterior portion being curved backward and larger than the posterior j^art, the two looking very 
much like the bill of an eagle and susceptible of being opened and closed. Segments from 1 to 0 
gradually increasing; (* to 0 about of a size, or showing but a very slight decrease; 10 and 11 
somewliat smaller and of a size, though the prominence on 11 is more i)ointed and higher than 
that on 10. Steep decline from 11 to anus, with but a very slight prominence on 12. The upper 
half of the body, including prominences, is silvery-green, with the dark lines already mentioned 
on thoracic segments, and an oblique dark line running on the other segments from anterior base 
of prominence to the posterior portion of the following segment. Suniinitsof promitiences yellowish, 
with extreme edges brown. Spiracles yellowish with a lilaceous annnlation. Thoracic segments 
with a lilaceous line, bordered above with yellow immediately above the legs ; segments 4 and 5 with 
a distinct and the rest of the segments each with an indistinct patch of the same two colors in a 
line with it, frequently becoming confluent and forming another line from 10 to anal legs.” (Riley.) 
This larva, judging by the figure and description of Mr. C. L. Marlatt,^ is an exaggeration of 
Fig. 68. Nerice hidentata; a. moth; fc. larra; c. pupa; d, 
foldeJ loaf inclo.siTig the cocoon, .all natural size; e, tlie egg 
onlargctl. with outline of the surface ])attern much magnified. 
C. L. Marlatt, del. 
* Trans. 20th and 21st annual meetings of the Kansas Academy of Science, 1887-88, xi, 1889, 110. 
