EXPLANATION TO PLATES. 
927 
PLATE XXVlII-Continued. 
3. Chionaspis quercus : lc, legs. From Corn- 
stock. 
4. Aster odiaspis quercicola. FromCoinstock. 
PLATE XXIX. 
Fig. 1. Bhizococcus on Araucarian pine : la, male 
16, its tail ; Id, female ; lc, end of its 
body ; le and 1/, its legs ; lg, edge of its 
body ; lh, antenna. 
2. Rhizococcus quercus: 2a, edge of body; 
26, a leg. After Riley. 
PLATE XXX. 
Fig. 1. Pulvinaria innumerabilis : a, egg before 
hatching; 6, egg after hatching; c, 
newly-hatched larva, ventral view — 
greatly enlarged, natural size indicated 
in circles. After Riley. 
2. a, leaf with male scales— natural size : 6, 
single male scale; c, male dorsal view- 
enlarged. After Riley. 
3. a, female scales in fall — natural size : 6, 
do., dorsal view; c, do., ventral view — 
enlarged. After Forbes. 
4. a, 6, females with egg-masses in late spring 
on maple leaf and stem of Madura — 
natural size. After Riley. 
PLATE XXXI. 
Fig. 1. Geometrid larva on pine. Length, 13 mm ; 
la, dorsal view. Gissler del. 
2. Geometrid larva on pine. Head, front 
view. 2a, labium; 26, the five simple 
eyes and tactile hair between them ; 2c, 
a mandible ; 2d, labium ; p, labial pal- 
pus, sp, spinneret ; 2e, supra-anal plate 
and one of the anal legs. Gissler del. 
3. Caterva catenaria ,■ 3a, dorsal view ; 36, 
front of head; 3c, side of a segment 
Marx del. 
4. Selandria larva on willow. Emerton, del. 
5. Pityophthorus puberulus, antenna. Giss- 
ler del. 
PLATE XXXII. 
Fig. 1. Semiothisa bisignata on fir: la, side view; 
16, front view of head ; lc, labium ; Id, 
Maxillae (mx) aDd labium (16) seen from 
beneath; labial palpus (lp) ; sp, spin- 
neret; le, antenna; 1/, mandible; la, a 
thoracic leg ; lh, supra anal plate and 
anal legs. Gissler del. 
2. Geometrid larva on hemlock, enlarged : 
2a, end of body. Gissler del. 
3. Dasylophia anguina ? Emerton del. 
4. Seirodonta bilineata. Emerton del. 
5. Apatela pruni Harris. Emerton del. 
PLATE XXXIII. 
Fig. 1. Geometrid larva on fir, 10 mm in length, la, 
the same side view : 16, head seen from 
in front; lc, labium ; Id, antenna ; le, 
labium ; lp, labial palpus; sp, spinneret; 
PLATE XXXIII-Continued. 
If, mandible ; lg, end of an abdominal 
leg; 1/', supra-anal plate and anal legs. 
Gissler del. 
2. 2a, Geometrid larva (same species as pi. x, 
fig. 3) x 7 times, and larva natural size 
(the body tapers too much at the end) ; 
26, imbricated structure of the cuticle 
on vertex of head; 2c, arrangement of 
light brown pigment at the side of the 
head, with rose-red pigment veins; 2d, 
ocelli, the lens convex, hv aline, pigment 
dark brown and directed downwards 
towards the genae ; 2e, supra-anal plate ; 
2/, side view of supra-anal plate and 
anal legs (the plate is drawn too long). 
(The labium, mandibles, maxillae, la- 
bium, and antenna the same as pi. xxxi, 
fig. 2. Gissler del. 
PLATE XXXIV. 
Ellemaharrisii, young, 15 mm in length, la, dorsal 
view ; 16, front view of the head, show- 
ing position of the eyes, (6') (la- 
bium incorrectly drawn), lc, labium; 
Id, antenna; le, maxillae (mxp, max- 
illary palpi), and labium : the latter 
turned downward, showing along the 
ventral margin glandular digitate, trans- 
parent appendages (lp, labial palpi) ; 
If, portion of the head torn away to show 
antenna (ant), mandible (md): lg=lg'. 
lh, mandible; It, ventral view of last 
segment, with last pair of abdominal 
legs ; lj, a thoracic leg. C. F. Gissler del. 
PLATE XXXV. 
Fig. 1. Mallodon melanopus, larva, dorsal, ventral 
and side view ; a, head seen from above ; 
6, the same seen from below. Marx del. 
2. Nola ovilla, dorsal and side view. J. 
Bridgham del. 
3. Parorgyia parallela ; dorsal and lateral 
view ; natural size. J. Bridgham del. 
PLATE XXXVI. 
Row of poplars on Fourteenth street, Washing- 
ton, defoliated by the fall web worm* 
From Bull. 10. Div. Entomology. 
PLATE XXXVII. 
Fig. 1. The European gipsy moth, male. After 
Kirby. 
2. The same, female. After Ratzeburg. 
3. Caterpillar, nat. size. After Ratzeburg. 
4. Pupa in loose cocoon. After Ratzeburg. 
PLATE XXXVIII. 
Sciaraocellaris. 1, leaf of Acer rubrum with galls; 
2, adult, male; 2a, tibial spurs and 
brushes of same; 26, claspersbf same; 
3, larva; 3a, head of larva; 36, caudal 
end of larva; 4, cocoon and pupa skin. 
After Comstock. 
