^PP»E]>^DIX J^. 



Some of the following notes and additions wei-e kindly sent me bj' Dr. Byar as this memoir 

 ■Wfs beina' printed. They fill np gaps in onr knowledge of the life histories of the species. 



EGa AND STAGE II OF ICIITIIYURA ALBOSIGMA (see p. 139). 



j^iiil, Laid two to seven together on the npper side of the leaf. Ilemisplierical, the base flat. 



Diameter, O.'J mm. Shells dead white. Larva hatches by a hole in the top. 



mige //.—Head black, month a little paler. Width, 8 mm. Body yellow, pnrplebrown on 

 the sides, except the large yellow snbventral 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, pnrplebrown; venter dnll brownish. 

 Segments 5 and 12 a little enlarged dorsally. Hairs white, fe\y. Cervical shield nearly linear,, 

 black. Length of larva, 8 mm. (Dyar.) 



EGG AND LARVAL STAGES OF NADATA GIBBOSA (see p. 143). 



^^^._( Jefferson, jST. H.) Three laid together near edge on nnderside of leaf. Spheroidal; 

 base flat, opacpie white; diameter, 1.1 nnn., 0.7 mm. high. Heticnlatiou linear bnt 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 hfhrcH.sii. 



(Dyar.) 



Larral stages.— A larva bred at Jefferson, N. H., had five stages, with width of head as follows: 

 I, aboutO.7 mm.; 11, 1.2 mm.; Ill, 2 mm.; IV, about 3 mm.; V, 4.(imm., 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). 



^^/,,._Rather more than hemispherical, with a flat base; not shining; whitish yellow.. 

 Diameter, 1 mm.; height, 0.7 mm. lleticnlations small, linear, rather elongate, irregularly hex- 

 agonal; much smaller toward the micropyle, where 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 part of its body projecting beyond the edge. It eats the upper 

 portion of the leaf, leaving the lower epidermis. Head shining, blackish, notched a little at the 

 vertex, paler below, mouth vinous; width, 0.5 mm. Body whitish with a green tint, feet and 

 tubercles black ; cervical shield blackish. A dorsal spot on segments and 12, and snbventral ones, 

 on segments 4, 6, and 10, brownish red. Later a slight prominence appears dorsally on segments 

 C and 12 corresponding to the tubercles i of each side and being the first indication of the future 

 high humps. Seta^ normal, i-v, vi absent, three on the distinct leg plate. 



Stage //.—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; width, 0.8 mm. Body cylindrical, shin- 

 ing green, a little dorsal red-brown dot on segment 5; a considerable bilobed process on segment (5, 

 the anterior lobe longest, red-brown; a single low, broad hump, on segment 12, yellowish on the 

 sides bearing tuber(!les i toward apex. Legs all red-brown with snbventral spots, more reddish 

 on segments 2 to 5 and 11, all used by the larva. Sette short and daric, normal, i-vi, with vii and 

 viii, oa the legless segments as usual. On segment 6, tubercle i is borne on the base of the horn. 



Stage ///.—Head flattened in front, depressed at vertex; yellowish green, a black lino from 

 vertex 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. None on the other segments. Faint, obli(iue,^ 

 lateral, yellowish lines. Legs red-brown, with a faint yellowish substigmatal shading. Body not. 



280 



