EXPLANATION TO PLATES. 



EXPLANATION TO PLATE VI. Fig. 6. 



J I'.. L— 0>. qmxliioii of Moiiohaii-, /iVo- cvnfuso-r : a, 

 c.a. jaw punctures: b, one of them laid 

 open to show position of eg^— natural 

 size. (Original.) 



FlO. 2. — Oelechia ccrealella: a. lull-grown larva; 



b, pupa; c, 9n»oth; d, wingsof a paler 

 Variety — all enlarged; /, grain of corn 

 rut open to show larva at work — nat- 

 ural size; g, labial palpu3 of <J moth; 

 (\ egg: h, anal segment of pupa— all 

 greatly enlarged. (Original.) 



Pig. 3. — Ear of pop-CGm showing v:orh of Gelechia 

 cerealdla. (Original.) 



Fig. 



Fig. 



EXPLANATION TO PLATE VII. 1 f ig . 



Fig. 1.— Monoham/riv.s confvtor, bark showing 

 exit perforations of mature beetles. 

 (Original.) 



Fig. 2.— Isosoma grande, section of straw showing 

 (e) ovipoaition of the female— enlarged. 

 (Original. > 



Fig. 3.— Jsosc-iiia graade, female (b) in the act of 

 ovipositing in wheat stalk — enlarged. 

 (Original.) jr IG 



Fig. 4. — Aphis brmoiieu.: a, so-called ' male'"; b, 

 wingless viviparous female — both 

 greatly enlarged, natural size indicated 

 by the small outlines. (Redrawn from 

 Curtis.) ; YlCr. 



EXPLANATION TO PLATE VIII. 



Fig.I.— Magiodcra ecripta : a, egg mass; c. newly. I 



hatched larva? : d, d, d, larva: of differ- , jf\ G , 

 ent sizes; e, pupa— natural size; b. single 

 egg ; /, one of the middle joints of body 

 of larva from above, showing tubercles , 

 — enlarged. (After Riley.) 



Fib. 'l. — Vlagindera scripia : a, beetle, normal form; 



b, c, d, c, showing variations — natural Fig. 

 size. (After Riley.) 



Kj... 3. — Isoaoma granule: d, larva? g, pupa — I 

 greatly enlarged ; /, mandible of larva ; 

 f, two-jointed feeler— still more en- j Fig. 

 larged. (Original.) 



Flo. 4.— Ixosoma grande : adnlt female— enlarged. • 



(Uriginal.) j Fig. 



Fig. 6 — Anthomyia hrassicce: a, larva; t>, puna, 

 Aonal view ; c, female liy ; d, head of : 

 male fly; e. antenna, showing ite j Fig. 

 appearance in both sexes— enlarged, j 

 (Original.) j 



(2) 



-Oecinia bra«3icsc: a, larva; b. pupa; c. 

 female fly; d, antenna of do.: e, pro- 

 1 lioracic spiracle of larva ; /. mandible 

 or "breast-bone "of do.: g, anal spiracle 

 of do.— enlarged. (Original, ) 



EXPLANATION TO PLATE IX. 



1. —Ea rig stages r>f iiiuo.dium phriciditnu .- a, 



larva, dorsal view, with fan-shaped ap- 

 pendages spread; b. pupa, dorsal view: 

 c, same, lateral view ; of, same, ventral 

 view; e, thoracic proleg of larva ; /. ar- 

 rangement of bristles at anal extremity 

 — enlarged. (After Riley.) 



2. —Simuliv.m wolestunc adult— enlarged. 



(After Packard.) 



3. — Mouth-part^ oflarvaofSimvliunt: a-, por- 



tion of a ray of the fan ; b, mandible ; 

 e, maxilla ; d, under lip ; e, upper lip- 

 enlarged. (After Osteu Sacken.) 



4. — Acrobasis vaccini' ; a. immature cran- 



berry, showing egg ; g, cocoon— natural 

 size; d, larva: e, pupa; /, anal joint, 

 dorsal view, of same ; h, moth: b. egg, 

 side view ; e, do., viewed more from 

 above. (Original.) 



5. — The Orange Rvst-mite : a, dorsal view ; & 



lateral view — enlarged, the dot in circle 

 indicating natural size; c, leg: d, egg, 

 with embryo just about to hatch— moro 

 enlarged. (Original.) 



6. —Tl(.e Pear CeetiLomyia, : a, larva, dorsal 



" view; b, do., lateral view — enlarged; e, 

 head and anterior joints ; d. anal joints : 

 e, ' ■ breast-bone ''—still mote enlarged. 

 (Original.) 



7 . —Phyllotrcta albiotvea: beetle enlarged. 



(Original.) 



EXPLANATION TO PLATE X. 



PULVDfA'RIA INXUMERABILIS. 



1. — a, egg before hatching ; b, egg after hatch- 



ing: c, newly-hatched larva, ventral 

 view— greatly enlarged, natural size in- 

 dicated in circles. (Original.) 



2. — a. leaf with male scales— natural size : b, 



single male scale ; c, male dorsal view- 

 enlarged. (Original.) 

 a, female scales in Fall— natural size ; b. 

 do., dorsal view; c. do., ventral view- 

 enlarged. (After Forbes.) 

 4. — a, b, females wit h egg-m asses in late Spring 

 on maple leaf and stem of Madura — 

 natural sue. (After Riley.) 



