MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 
283 
•down on the side of the first abdoDiinal segment to the base of the third pair of thoracic legs. The 
dorsal line divides again oii the fifth abdominal segment, inclosing a long triangle extending back 
to the ninth segment. An oblique reddish line on the seventh abdominal segment. On the 
suranal plate are two parallel dorsal dark lines. 
8ta(}e lY. — Length, 20 inm. Marking*s as in Stage III, but much more distinct, and now the 
two dorsal Y)rothoracic spines are slightly shorter, thicker, and more rounded at the end, Avithout 
the two lateral teeth, being of the same shape as in the full-fed larva. Head reddish, nearly as in 
the last stage. Thoracic legs reddish. 
Stage V (and last). — Length, 35 mm. Head (in alcoholic specimen) deep reddish on the sides. 
Prothoracic spines rounded, reddish, tipped with blackish. Body leaf-green, the lines faintly 
marked; the two dorsal reddish lines dividing on the third thoracic segment, uniting again on 
the fourth abdominal segment, and inclosing a lanceolate oval dorsal spot, the dorsal line again 
dividing on the filth abdominal segment, and in my specimen nearly obsolete behind. A lateral 
oblique reddish band on the first abdominal segment beginning Just behind the spiracle and 
extending to the base of the third pair of legs. A lateral reddish band on third and sixth abdom- 
inal segments, suraual plate broadly edged with reddish. Anal legs reddish above and on the 
sides. Thoracic and abdominal legs reddish. 
A NOTE ON THE LARVA OF DATANA FLORTDANA Graef. 
“Having examined some specimens of the larva of Datanajloridana \u the collection of the 
Museum of Comparative Zoology at Cambridge, I am able to confirm the description by Mr. 
Koebele (Bull. Brooklyn Ent. Soc., iv, 21), and to add that the lateral lines are slightly broader 
than the intervening black spaces, or as broad; not confluent at the extremities. The large, 
normal hairs are white, and arise singly from minute tubercles. The fine shoi’t (secondary) hairs 
are black, very inconspicuous without a lens, and not diftering fi'om the corresponding structures 
in D. major and I), palmii. The species is closely allied to I), pabnii, and may prove, on further 
investigation, to be not specifically distinct.” (Psyche, vi, p. 573.) 
. A NOTE ON DATANA CALIFORNIO A Riley. 
This form, labeled by the late C. Y. Riley as Batana caJifornica^ I find, on examination of the 
types of tlie moths and two blown larvie in the National Museum, to be only a slightly marked 
variety of Batana ministra. The si)ecimeus are all from Santa Clara County, Cal. 
The moths. ^ and $ , six in all, only differ from Eastern D. ministra in being a little paler; the 
lines and other nuirkings are the same, as well as the scallops of the Avings. They are of large 
size, a female ex^ianding 52 mm.; length of a fore wing, 25 mm.; that of an Eastern 9 , 22 nun. 
The two larvm were of large size, 58 mm. in length, bloAvn specimens. They dilfer slightly 
from several blown specimens of Eastern ministra. The head is black and the prothoracic shield 
gamboge-yellow, as in normal B, ministra, and the stripes along the body are yellow, and as in 
normal ministra, but very slightly narrower. Beneath, the body is decidedly darker, and the base 
of the legs is darker, deep reddish where those of the Eastern niinisfra are usually gamboge-yelloAv. 
Also the latero-ventral yellow line is much narrower and more nearly obsolete. HoAvever, a blown 
specimen of an Eastern ministra approaches the California larvic in having deep red legs. On 
the whole, while there are slight differences in the California form, I am yet someAA'hat in doubt 
whether to call it a AA'ell-marked climatic variety. Dr. Dyar, on seeing the specimen, coincides 
with me. 
NOTE ON THE VESTIGES OF MANDIBLES IN THE PUPA. 
Regarding the nature of the pieces A\iiich I have designated as paraclypeal, Dr. Chapman, to 
whom I submitted proofs, Avrites me as follows: “ The paraclypeal pieces ha\^e always passed Avith 
me as mandibles, but there is room for doubt. Where there is a distinct articulation all around I 
think it is so, but in other cases it may be the corner of the head case of the larva, Just as prolegs 
and other larval marks often present.” I am inclined to adopt this view. On comparing the 
paraclypeal pieces in figs. 12, 23, 24, 26, 27, 28, 20, 30, 31, 37, 41, 45 AA’ith the SAvollen bases of 
the large functional mandibles of Microptcryx piirpuriella (fig. 5) they seem to agree Avith them 
in position. 
