EXPLANATION TO PLATES. 



927 



PLATE XX VIII— Continued. 



3. Chionaspis quercus : Ic, legs. From Corn- 



stock. 



4. Asterodiaspis gtiercicola. FromComstock. 



PLATE XXIX. 



Fig. 1. Rhizococeiis on Araucarian pine : la, male 

 16, its tail ; Id, female ; Ic, end of its 

 body ; le and ]/, its legs ; Ig, edge of its 

 body ; Ih, antenna. 

 2. Rhizocoecus quercvs : 2a, edge of body ; 

 26, a leg. After Riley. 



PLATE XXX. 



Fig. 1. Pulvinaria innunierahilig : a, egg before 

 hatching ; 6, egg after batching ; 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. o, 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""; 

 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, gp, spinneret ; 2e, supra-anal plate 

 and one of the anal legs. Gissler del. 



3. Oaterva eatenaria ,- 3a, dorsal view ; 36, 



front of head ; 3c, side of a segment 

 Marx del. 



4. Selandria larva on willow. Emerton, del. 



5. Pityophthortig pubendua, antenna. Giss- 



ler del. 



PLATE XXXIL 



Fio. 1. Semiothisa bisignata on fir: la, side view ; 

 16, front view of head ; Ic, labium ; Id, 

 Maxillse (mx) and labium (16) seen from 

 beneath; labial palpus (Ip); sp, spin- 

 neret; le, antenna; 1/, mandible; 1^, a 

 thoracic leg ; \h, supra anal plate and 

 anal legs. Gissler del. 



2. Geometrid larva on hemlock, enlarged : 



2rt, 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""» in length, la, 

 the same side view : 16, head seen from 

 in front; Ic, labium ; Id, antenna ; le, 

 labium ; Ip, labial palpus; gp, spinneret; 



PLATE XXXIII— Continued. 



1/, mandible ; Ij;, end of an abdominal 

 leg ; Ih, supra-anal plate and anal legs. 

 Gissler del. 

 2. 2a, Geometrid larva (same species as pi. x, 

 tig. 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, hyaline, 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. 



Elletnaharrigii, yoang, 15""" in length, la, dorsal 

 view ; 16, front view of the head, show- 

 ing position of the eyes, (6') (la- 

 bium incorrectly drawn). Ic, 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 Op, labial palpi) ; 

 1/, portion of the head torn away to show 

 antenna (ant), mandible (md): lg=lg'. 

 Ih, mandible; If, ventral view of last 

 segment, with last pair of abdominal 

 legs; )j, a thoracic leg. C. F. Gissler deJ. 



PLATE XXXV. 



Fig. 1. Mallodon melanopug, 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. 



PL A IE XXXVII. 



Fig. 1. The European gipsy moth, male. After 

 Kirby. 



2. The same, female. After Ratzebnrg. 



3. Caterpillar, nat. size. After Ratzebnrg. 



4. Pupa in loose cocoon. After Ratzebnrg. 



PLATE XXXVIIL 



Sciaraocellarig. 1, leafof4cccrM6ntm with galls; 



2, adult, male; 2a, tibial spurs and 

 brushes of same; 26, claspers of same; 



3, larva; 3a, head of larva; 36, caudal 

 end of larva; 4, cocoon and pupa skin. 

 After Comstock. 



