MEMOIPtS OF THE XATIOXAL ACADEMY OF SCIENCES. 
115 
more sliiiiiiig th^au in i>. jyerspicua; in the latter species the metanotum varies in being either 
punctured or not. Cremaster almost exactly as in />, perfipicvaj but the underside is nearly 
smooth, not so coarsely corrugated, and without the six longitudinal ridges of TK persptvna; the 
four spines are nearly as in /). perspicua. The 5 has one sexual scar, which is long and linear; in 
the c? the region on each side of the genital fossa or scar is regularly swollen, the surface convex. 
The transverse fossa at the base of the tenth abdominal segment with five or six teeth, the teeth 
less ridge like and regular tliau D. perspicim. 
Remarl's, — Vestiges of the abdominal legs appear in these pupa*. On the tifth and sixth 
segments is a pair of irregular tubercles, none exactly alike, the left one on the lifth abdominal 
segment being conical. The rudiments of the anal legs are (juite distinct. In juipa of J>, perspivua 
there are faint vestiges of legs on the sixth segment. Vestiges of abdominal larval legs, due to 
their being imperfectly absorbed during the process of pupation, were also observe<l iu the pupa 
of a Datana from (_)lymx»ia, Wash., indi(;ated on fourth and fifth abdominal segments by a deep 
crescentifoi'in depression, [)erha])s representing the outer and inner edge of the plaiita. Similar 
vestiges were observed in the pupa of I>. anfutsi i. For specimens I am indebted to Miss Ida ^I. Elliot. 
The markings of the larva whose lines are divided into spots, indicates that it may be the latest 
form of the genus. 
llahiis. — Eggs of second brood deposited July 25; larva* of second brood in July, August,. 
and September, New York and ilaryland. (Riley.) “They always keep in close clusters and feed 
together.” (Le Conte.) 
Food pliinf, — Andromeda ligustrinaj and in Georgia on Andromeda marutn((. 
(ieofjraphical distribution. — New Bedford, 51ass. (Miss Elliot); Massachusetts (Mrs. Fernald) ^ 
NarragansettPier, R. I., and Newburg, N. Y. (Miss Morton), (U. B. Nat. Mus.) ; Maryland (Stratton 
Coll, Eut. Soc. Phil., TJ. S. Nat. 5Ius.); Arkansas (Palm); New York, Tifiin, Ohio; Maryland,. 
Savannah, Ga. (Le Conte); Carboudale, 111. (French), 
Datana floridaiia Graef. 
(PI. II, fig. 11, ^;V2, 90 
Datana porUlana Graef, Bull. Brooklyn Knt. Soc., ii, p. 37, Sept., 1870. 
Grote, New Check List X. Aiuer. ^Moths, p. 18, 1882. 
Smith, List Lep. Bor. Amer., j). 30, 1891. 
Kirby, Syn. Cat. Lep. Het., i, p. 613, 1892. 
Xeum. aiitlDyar, Trans. Araer. Eut. Soc. ,xxi, p. 198, 1894; Journ. N.Y. Ent. Soc.,ii,p. 116, 1894. 
Larva. 
{PI. XIV, fig. 1.) 
KoeheJej Bull. Brooklyn Ent. Soc., iv, p. 21, 1881. 
Di/ai-f P>;yche, vi, p. 573, 1893. 
Moth. — As in D.pahnii^ but browner, the pale scales less prominent, the lines less contrasting,, 
obscure. The discal dots are, however, more distinct than in T). piilmii. Secondaries more 
heavily tinged with brown. The Florida specimens show very little of the whitish or pale lilac 
tint, while specimens from Long Island are almost as pale as I). pa I mil from the Catskills. 
Save I). palmii, the species has no very close allies. In general appearance it comes nearest 
to D, inteperrima^ but differs obviously in its purplish tint and entire lack of pale shades bordering 
the Hues. (Dyar.) (For Dyar’s description of the larva see Ajipendix A.) 
Larva. — “ The larva is black, with eleven parallel yellowish lines running the full length of the 
body. There is one immediately between the legs under the body, one on the line of, and inter- 
rupted by, the legs, the rest above and efpudistant from each other, leaving the back with a 
somewhat broader black space. The head, the summit of the body-segment, the anal covering, 
and the summits of all the legs are deep mahogauj^-red in color. The feet are all black ; those on 
the last segment are partially aborted. 
Ifabits. — “It has the habit, which seems to be common to the genus, of raising and throwing'“ 
back the head and tail over the body when disturbed.” (Koebele.) Larvie in October, moths iu 
March, Florida (U. S. Nat. Mus.). 
Food plant. — Andromeda mariana L. (Riley). 
Geographical distribution . — Florida (Graef, Frenclij. 
