EXPLANATION TO PLATES TO REPORT ON COTTON INSECTS. 



(When figures are enlarged, the natural sixes are indicated in hair-line at side, unless the enlarge 

 ment is indicated in some other way.J 



EXPI>ANATION TO PLATE VIL 



Aletia argiUacea. (Original.) 



FlO. 1.— Eggs on the lower surface of the leaf. 

 .Fig. '2. — Very yotin;; larvae feeding. 



Fig. 3. — Older larvae that have moved to the tender 

 foliage at end of branch. 



P^GS. 4, 5, and G. — XearJy full-grown larvae showing 

 some of the color variations. 



Fig. 7. — Margin of leaf as webbed about a pnpa. 



Fig. 8.— Pupa inclosed in fragment of leaf. 



Fig. 9.— Pnpa from wiiich the leafy covering has 

 been partly eaten bv caterpillars. 



Fig. 10.— I'upa entirely deprived of its case by 

 larvae, but prevented from falling by the catch- 

 ing of its aual hooks in remnants of the cocoon. 



Fig. 11. — Moth at rest, seen obliquely from above. 



Fig. 12. — Moth seen from below, with wings ex- 

 panded. 



Fig. 13.— Tlie same from above. 



FlO. 14. — Kectar gland on midrib of cotton leaf. 



Fig. 15. — Nectar gland at base of involucre. 



EXPI.AKATIO^T TO PlATK V US. 



Ediothit armigera. (Original.) 



Pig. 1. — Vertical section of a fuUy-eipanded cotton 

 flower, at end of the first day of bloomiag, show- 

 ing a young boll worm at work. 



Fig. 2. — BoU-wonn moth se^n from below. 



Fig. 3. — Tb<> same seen from above. 



Fig. 4. — Dorsal view of a partly grown larva. 



Fig. 5. — Side view of a nearly full grown larva. 



Fig. 6. — Vertical section of a large green boll, one 

 compartment of which contains a boll-worm that 

 has eaten the content* of the cell, the bottom of 

 which is oconj)iod by its Irass. 



FlO. 7. — Full-2iown green boll-worm. 



Fig. 8. — Yoiing rose-oolored boll-worm, often seen 

 in cotton flowers ani^ on com silk. 



Fig. 9. — Pupa seen from below. 



FlO. 10. — Young boll pierced by a small boll-worm. 

 The injury has caused the involucre or "ruffle" 

 to fiiare open. 



EXPLA-NATIOX TO PLATK TK. 



Fig. 1. — Egg of Aletia, seen from above and from 

 the side, enlarged. (Original.) 



Fig. 2.— Anal armature of Aletia chrysaUB, en- 

 larged. (Original.) 



Fig. 3. — Maxillae of adult Aletia, seen tcoTO. the 

 side, enlargeil. (Original.) 



Fig. 4. — Cross-section of maxillae of Aletia, en- 

 larged. (Original.) 



Fig. 5. — AttuB nubilun, dorsal view, enlarged.- (Orig- 

 inal.) 



Fig. 6. — Oxyopen viridans, natural size. (Original.) 



¥lG. l.—Ohri/sova perla, eggs, larva, and adult. 

 (After P:irk;r:-(1.) 



FlO. %.—Chrysnpa oculata, eggs and adnlt. (After 

 Packard.) 



Explanation to Plate X. 



Via-Tu—L^MulatrimaevXattL (After Packard.) 



HA 



FlO. 2.— Eggs of Mantis Carolina. (After Riley.) 

 Fig. 3. — Arma tpinosa. (Alter Glover.) 

 Fig. 4. — liapkigaster hilarit. (After Glover.) 

 Fig. .5. — l'rion<jlv.geristatu»,eggB, larvae, and adnlta. 

 (After Glover.) 



EXPLANATIOIT TO PLATK XI. 



Fig. 1. — A eanihoeephala femorata. (After Glover. ) 



Fig. 2. — Sinea mtdtigpinosa. (After Glover.) 



Fig. Z.—Ercvx apicahs. (Original). 



Fig. 4. — Tetracha Carolina. (Original.) 



Fig. 5. — Tetracha Virginica. (After Riley.) 



Fig. 6. — Several forms of tiger beetles. (After 



KUey.) 

 Fig. 7. — Oalotoma callidum. (After Riley.) 

 Fig. S.—Oalosoma scrutator. (After Eiley.) 



ExpuL-VAnox TO Plate XTT. 



P^G. 1. — Harpalus caliginofut. (After Riley.) 

 Fig. 2. — Larva of Harpalus. (After Emerton.) 

 Fig. 3. — Ohaviiognathus marginatus, adult. (Orig. 



inal.) 

 Fig. 4. — OhauUognatkvs Pennsylvanicus, larva and 



adult. (After Riley.) 

 Fin. 5. — Hippodnmia maculata. (After Packard.) 

 Fig. 6. — Hippodamia eonvergens, larva, papa, and 



adult, (After Packard.) 

 Fic. 7. — Coccinella munda. (After Packard.) 

 Fig. 8. — Coccinella 9-notata. (After Packard.) 

 Fig. 9. — Oocninella venvsta. (Original.) 

 Fig. 10. — JEpiiachna borealig. (After Packard.) 

 Fig. 11. — Diabrotica Vipunctata. (After Packard.) 

 Fig. 12.— Polixtes bellicosa. (Original.) 

 Fig. 13, — Chalcin ovata. (Original.) 

 Fig. 14. — Trichogramma minuta. (After Riley.) 



EXPLANATIOK TO PLATE XHL 



Fia. l.—Cirrospilus esurus. (Original.) 



Fig. 2. — Evplectrua, sp. (Original.) 



Fig. 3. — Didyctium zigzag. (Original.) 



Fig. 4. — Pimpla annulipes. (After Eiley.) 



Fig. 5, — Fimpla conquisitor. (Original.) 



FlQ. 6. — Sarcophaga camaria. (After Emerton.) 



ExPAJJATiOK TO Plate XPV. 



Fio. 1. — Sarcophaga ea/rnaria, var. sarraeenia* 



(After RUey.) 

 Fig. 2. — Anth'omyiat up. (Original.) 

 Fig. Z.—Phora aletiae. (Original.) 

 Fig. 4. — Whitman's fountain pump. 



Explanation to Plate XV. 



Method of poisoning with the fountain pump. 



Explanation to Plate XVX 



Fig. 1. — Young's sifter. 



Fig. 2. — J. W. Johnson's machine, side elevation. 



Fig. 3. — The same, plan. 



Fig. 4. — N. A. Davis's sifter, rear elevation ; 2, sec- 

 tion of sifting attachment. 



Fig. .O. — Egg of boll-worm, seen from above and 

 from the side. (Original.) 



Fig. 6. — Posterior end of boll-worm pupa, seen 

 from below. (Original.) 



