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Psyche 9:298, 1900.

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298 PSYCHE. [January 1901
The 2 scale is smooth elongate oval 44 to 5 mm. long ; 2 to 3 broad, and 2 high. Color variable, reddish brown, yellowish brown to a tinge of greenish brown, rounded dorsally without ridges forming an H though this
character is found in the immature individu- als. Antennae 8-jointed measuring in p.
joint I(s~), 2fW, 3(84), 4(52) 6(36) 7(28) %6), joint I has one hair, 2, two ; 3, three ; 4 three ; 5 two; 6 one; 7 two and 8 eight. Front
leg :
coxa 120 long ; femur with trochanter
240 ; tibia 168 ; tarsus 88. Tarsal digitule 56 long.
The outer margin of the skin after
treatment with potash is much darker than the rest, and the entire surface tessellated, and thickly covered with oval gland orifices. SAISSETIA FILICUM.
Lecat~ium filicum Boisd. 1868.
$2 Scale yellowish red brown to red brown, practically hemispherical, though some ex- amples found at the ends of the small twigs and leaves of the food plants are some-
what elongate. The adult $? scale and young having one longitudinal and two transverse ridges forming a raised H marginally dis- tinctly keeled. The longitudinal ridge has 4 minute raised round tubercles, and the entire scale more or less minutely pitted, surface somewhat shiny. Size 3 mm. in
diameter and 2 mm. high.
Antennae 8-jointed in u, long r(p) 2(48) 3(56) 4(44 5W) 6(24) 7(28) 8(40). Front leg : coxa 120 ;
femur with trochanter 200 ; tibia
152 ; tarsus 88.
The skin marginally dark
ocherous thickly covered with large oval gland orifices. The center and large portion of the skin colorless with the gland pits very indistinct.
It seems to the writer that the names
of the above two species are misplaced.
S.filicum should be called S. hemisphae- rica and the latter S. filic?tm, owing to the fact of S.filicum as it now stands is a hemispherical shaped species, while S. hemisfhatrim is an elongate oval one.
Indeed it seems as though S.JiZiam was
the one originally described as L. hemi- sphawicttwi. The marginal hairs of the
four above species are all very similar
with expanded ends which are more or
less split interspersed with ordinary
sharp spines without expanded ends or
split. The lateral incisions of all are
also of the same shape similar to a half oval.
Saissetia hemisphae'l'ica was received
from Prof. Cockerell, collected by him
Aug., 1901, at La Galla, San Diego
county, Calif., on pepper tree (Sckintu
mo^e), on Cycas circi?iaZi.r, Trinidad
(West Indies) from Dr. L. Reh, and on
fern in greenhouses in Mass, Those
of S. filicliwz were from ferns in green- houses, Lawrence, Mass. collected by
myself.
LIFE HISTORIES OF NORTH AMERICAN GEOMETR1DAE.- XXIX. BY HARRISON G. DYAR, WASHINGTON, D. C.
Efelis truncataria Walker.
ly depressed ; shining pinkishgray, slightly ir- Bsg- Elliptical, strongly flattened-con- idescent. Reticulations strong, sharp, rep cave, one end neatly truncate, the other slight- larly hexagonal, resembling honeycomb at



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PSYCHE.
the truncate end, arranged in nearly regular longitudinal rows for two-thirds the length, confused into normal reticulations at the de- pressed third ; pits rather deep, well-marked. Length .7, width .5, height about .3 mm. Stage F. Head rounded, erect, pale, yel- lowish, the sutures faintly and mouth brown, ocelli black. Body normal, short and thick, yellowish with distinct green tint and fine, discreet, purple brown lines, about as wide as the intervening spaces, dorsal (distinct on the cervical shield), subdorsal, lateral, stig- matal and fainter subventral ones. Shields all concolorous; tubercles obscure; setae short, stiff, black, enlarged at tips. Feet nor- mal, pale. Shields faintly lined.
Sfage ZZ. Head round, erect, free, green- ish lnteous, mouth brown, eye black; smooth, shining; width .,s mm. Body normal, mod- erate, smooth, green with dorsal, snbdorsal and lateral pulverulent, subgeminate, black- ish bands and a single suprastigmatal one; subventral fold pale. Tubercles elevated, concolorons ; setae short, dark, capitate. Sliield&i undifferentiated. Thoracic feet faint. ly reddish, abdominal ones green. Snbven- tral and ventral lines more dotted and broken, geminate, blackish.
Stage III. Head round, erect, broad, flat before, vertex slightly under joint 2 ; pale gi-ccn, faintly brown shaded on the sides above the black ocelli; width .g mm. Body robust, moderate, uniform, incisures not de- pressed, segments not elongate. Whitish
green, opaque ; addorsal, subdorsal, lateral geminate crinkly blackish lines, darker green filled, uniform over the cervical shield but replaced by yellowish green on the anal
plate; a single suprastigmatal line ; sub- venter and venter yellowish green with two subventral and a single ventral greenish black lines. Tubercles black, minute; setae short. Feet pale, the abdominal ones very faintly lined.
Stage IV. Head rounded, erect, free; all leaf green; clypeus rather high, occlli black; width 1.3 mm. Body rather short, as before. Green with the narrow blackish, double, pale- filled lines as before but both dorsally and ventrally practically alike. Subventral fold ivhitish. Feet green, the anal ones with tri- angular shields like the anal plate. No cer- vical shield. Tubercles small, concolorous, with short, pointed black setae. The lines are addorsal, subdorsal and lateral (substig- matal-subventral fold, not dark edged), sub- ventral and adventral, all geminate, pale, almost whitish filled. Later the color pales and the lines look whitish with dark green edges. Subventral fold white ; dorsal in- cisures folded, yellowish white. A short, robust larva, uniform, the segments not
elongate.
Foodplant', bearberry (Arctusta'pkylos uva u ?Ti}.
Eggs from a female taken on the summit
of the foothills back of Golden, Colorado (Chimney Gulch),
THE HATCHING OF EACLES IMPERIALIS.
BY CAROLINE G. SOULE, BROOKLINE, MASS.
Eggs of Eacles imperialis had a red line larva. This could be seen without a lens, part of the way around the edge of each. As but a fifteen-diameters glass showed also the the larva developed this line became broken, setae at the top of each tubercle, those on the and, on the day before hatching, showed the four tubercles over the head being black, the red dashes to be the dorsal tubercles of the otherswhite. When the larva hatched thered



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