Article beginning on page 191.
Psyche 7:191-192, 1894.

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[January 1895
PSYCHE.
width 3.2 mm.
Body pale blue or blue-gray
up to and including the blue band in sub- dorsal space leaving a few black dots and the row of lateral spots which indent the lower edge of the band. Doisal space black, the b!ne dorsal line broken a
little in middle
of each segment or continuous. Red marks absent or a partly duplicated (id-dorsal line with a few subilorbal dots. Hair all red, thin dorsally, not obscuring' the body, quite thick subventrally but not tufted. Venter gray at first, later black, often patched with blue.
Cocoon and pupa :IS in the other species of Clisiocainpii.
Food flii̤ts Willow and poplar (Kasli), wild cherry and wild rose (Wiley) and wild gooseberry.
UNCERTAINTY OF THE DURATION
OF ANY STAGE IN THE LIFE-
HISTORY OF MOTHS.
BY CAROLINE G. SOULE,
BROOKLINE, MASS.
So much emphasis has been laid on the
number of mo~ilth find the duration of each stage of larval life of our moths, that it seems to me worth while to sh&v a few
insbinccs of the vili'iittioii that occrn's. I think that it cannot he stated positively that any species has a certain number of moults, or that any stage liiists a certain number of days.
I have had one brood of 11. caryae moult four times, and another moult five times. The same diffei ence occui red with C.jus- ladis larvae.
Owing to my arrangements of the larvae
there is no-or the minimum- chance of
mistake, the moults being always noted from the same boxful of larvae, and those always the first hatched.
The following tables show a few instances of variation among Sphingid larvae.
Stage. 1389. Days.
Eggs laid July g
Hatched July 17 8
ist moult 7.1 4
and moult " 27 6
grdmoult Aug. I 5
4th moult '' 8 7
Stopped eating " 29 21
Pupated Sept. 7 9
Oiy. ik
1891. Days. No. of Dys.
July 6 1891 less
than 18% by
July13 7 I
' 16 3 I
' 2 0 4 2
Aug. 24 4 I
' 30 6 I
lo record
C' ',
Stage. iSSq. Days.
Eggs Laid June 14
Hatched June 23 9
1st moult " 29 6
and iuoult July 4 5
yd moult " 8 4
4th moult " 14 6
Stopped eating " 20 6
Pupated " 27 7
DiY. i,t
1893. Days. No. ofTSys.
July 13 1893 ~CSS
than 1889 by
July19 6 3
" 23 4
2
" 27 4
I
30 3
I
Aug. 3 4 2
8 5
r
" 12 4 3
Diff. m
Starc. 1889. Days. 1890. Days. No. of&.
Eggs laid July 9 July 29 I+ less
than 1889 by
Hatched July 20 11 Aug. 8 I
st moult " 29 g " 16 8
end moult Aug. 4 6 " 22 6 o
3rd moult 12 8 " 29 7 I
4th1noult " 21 g Sept. 5 7 z
Slopped eating Sept. 5 is " 1 4 8
Pupated " 12 7 " i8 4 3
Hemarts dzå´ffinis
Diff. t~
Stage. 1891. Daysi 1891. Days. No. ofDys. Eggs laid no record
Hatched no record
1st moult no record
and moult May 30
3rd moult June 2 - 3
4th moult " 13 II
Stopped eating " 16 5
Pupated ' 18 3
1891 1st
brood had
7
3
3
3 same
4 7 more
6 I less
5 2 less than
2nd brood.




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PSYCHE. [January 1895.
THE SEVENTH VOLUME OF PSYCHE.
Began in January, 1894, and continues through three years. The subscription
price (payable in advance) is $5.00 per volume, or $2.00 per year, postpaid. The
numbers will be issued, as in Vol. 6, on the first day of every month and will con- tain at least 12 pages each.
No more than this was promised for the sixth volume but the numbers have actually averaged more than 16 pages, and in addition 21 plates have been given and more than 50 other illustrations, We prefer to let performance outrun promise, but when a larger subscription list warrants it, we shall definitely increase the number of pages. Vols. 1.6, Complete, Unbound, - Now sold for $29.00. Vols. 1-6, and Subscription to volume 7, . . $33.00. The Butterflies of the Eastern United States and Canada, With special reference to New England.
By SAMUEL H. SCUDDER.
Illustrated with 96 plates of Butterflies, Caterpillars, Chrysalids, etc. (of which 41 are colored) which include about 2,000 Figures besides Maps and Portraits. 1958 Pages of Text.
Vol. I. Introduction; Nymphalidae.
Vol. 2.
Remaining Families of Butterflies.
Volt 3.
Appendix, Plates and Index.
The set, 3 vols., royal 8v0, half levant, $75.00 net. 1-IOUGHTON, MIFFLIN & CO.,
4 Park St., Boston, Mass.
A. SMITH & SONS, 269 PEARL STREET, New York. MA'tbFACTURERS AKD IMPORTERS OF
GOODS FOR ENTOMOLOGISTS,
Klaeger and Carlsbad Insect Pins, Setting Boards, Folding Nets, Locality and
FOLDING NET
/
Special Labels, Forceps, Sheet Cork, Etc. Other articles are being added, Send for List. JOHN AKHURST,
TAXIDERMIST AND DEALER IN ENTOMOLOGICAL SUPPLIES. Fine Carlsbader Insect Pins a spe-
cialty. Price List sent on sipplication. ,
78 Ashland Place,
IMPROVED ENTOMOLOGICAL FORCEPS.
BROOKLYN, N. Y.




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