Some of the following notes and additions were kindly sent me by Dr. Dyar as this memoir- 
was being’ printed. They fill up gaps in our knowledge of the life histories of the species. 
EGG AND STAGE II OE ICHTHYURA ALUOSIGMA (see p. 139). 
Eag . — Laid two to seven together on the upper side of the leaf. Hemisphericalj the base fiat.. 
Diameter, 0.9 mm. Shells dead Avliite. Larva hatches by a hole in the top. 
^tagell , — Head black, mouth a little paler. Width, S mm. Body yellow, purple-brown on 
the sides, except the large yellow subventral warts on segments 2-4, G, 9-12; the color extends 
across the back on segments 2, 5, 7, 8, 12, and 13 posteriorly, not completely replacing the yellow 
on segments 7 and 8. An indistinct triplicate dorsal line, purple-brown; venter dull brownish. 
Segments 5 and 12 a little enlarged dorsally. Hairs white, few. Cervical shield nearly linear,, 
black. Length of larva, S mm. (Dyar.) 
EGG AND LARVAE STAGES OF NADATA GIBBOSA (See p. 143). 
Egg, — (Jeflerson, 'N. H.) Three laid together near edge on underside of leaf. Spheroidal;: 
base fiat, opaque white; diameter, 1.1 mm., 0,7 mm. high. Beticulation linear but rather high 
and with harder base, rather small and regularly hexagonal; the pores at the angles distinct, 
bead-like in the empty shell. The cells between reticulations form shallow hollows as in hehrensii, 
(Dyar.) 
Larval stages , — A larva bred at Jefferson, K. II., had five stages, with width of head'as follows: 
I, about 0.7 mm.; II, 1.2 mm.; Ill, 2 mm.; IV, about 3 mm.; V, 4.Gmm., thus apparently omitting 
the normal stage III instead of II, as the Yosemite ones did. (Dyar.) 
EGG AND LARVAL STAGES OF NERICE BIDENTATA (See p. 171). 
Egg , — Bather more than hemispherical, with a flat base; not shining; whitish yellow.. 
Diameter, 1mm.; height, 0.7 mm, Keticulations small, linear, rather elongate, irregularly hex- 
agonal; much smaller toward the micropyle, Avhere there is an almost smooth area surrounding a 
slight prominence, or all smooth. (Dyar.) 
Stage I , — On hatching the larva runs to the tip of a tooth on the side of a leaf or end of the 
midrib and sits with the anterior i>art of its body i^rojecting beyond the edge. It eats the upper 
portion of the leaf, leaving the lower epidermis. Head shining, blackisii, notched a little at the 
vertex, paler below, month vinous; width, 0.5 mm. Body whitish with a green tint, feet and 
tubercles black; cervical shield blackish. A dorsal spot on segments G and 12, and subventral ones 
on segments 4, 6, and 10, brownish red. Later a slight prominence appears dorsally on segments 
G and 12 corresponding to the tubercles i of each side and being the first indication of the future 
high humi)s. Setm normal, i-v, vi absent, three on the distinct leg plate. 
Stage II , — Eating the whole leaf and resting on a perch formed of the midrib from which the- 
substance of the leaf has been eaten away by the larva. Head higher than prothorax, slightly 
bilobed, shining luteous with brown side stripe to vertex; Avidth, 0.8 mm. Body cylindrical, shin- 
ing green, a little dorsal red-brown dot on segment 5; a considerable bilobed process on segment G, 
the anterior lobe longest, red-brown; a single low, broad hump, on segment 12, yellowish on the- 
sides bearing tubcndes i toward ai)ex. Legs all red-brown with subventral spots, more reddish 
on segments 2 to 5 and 11, all used by the larva. Seta? short and dark, normal, i-vi, with vii and 
viii, on the legless segments as usual. On .segment 6, tubercle i is borne on the base of the horn. 
Stage III , — Head flattened in front, depressed at vertex; yellowish green, a black line from 
A^ertex of each lobe to side of mouth; width, 1.3 mm. Dorsal processes visible on segments 5, G, 
7, and 12, highest on G, but all slight, brown tipped. Kone on the other segments. Faint, oblique^, 
lateral, yellowish lines. Legs red-brown, with a faint yellowish substigmatal shading. Body not- 
280 
