LIST OF ILLUSTRATIONS. 99 



FIG. 9. Eurytoma bollcri Riley; female, enlarged. 



FIG. 10. Bag of Bag-worm (Tli-yridoptcryx ephemerceformis Steph.), cut to show tlie 



cocoons of Hemitclcx (.') thyndopterygis. 

 FIG. 11. Hcmitch'x (?) tlii/ridopfirygin Riley, female. 

 FIG. 12. Hrmitch'x (?) ilii/i-idoptcrngis Riley, male. 

 FIG. 13. Thistle Plume (Pteroplwrux (ardiiidncfi/Ius Riley), moth. 

 FiG. 14. Thistle Plume (Pterophorux carduidiK-h/liix Riley), chrysalis. 

 FIG. 15. Grape-vine Plume (Pteropkorus periscelidaclylus Fitch), moth. 

 FIG. 16. Grape-vine Plume (Pterophorus periscelidactylus Fitch), chrysalis. 

 FiG. 17. Gooseberry Fruit- worm Moth (PcmpcUa grosxulai-Ur Pack.). 

 FIG. 18. duckweed Geometer (Haimatopix grataria, Fabr.), moth. 

 FiG. 19. Chickweed Geometer (Hcemato^is grafaria, Fabr.), larva. 

 FiG. 20. Chickweed Geometer (Iftrmal<>i>i* i/rataria, Fabr.), pupa. 

 FiG. 21. Chickweed Geometer (Hccmato]_m </ nit aria, Fabr.), eggs. 

 FIG. 22. Ailanthus worm ((Eta comitta, Clem.), moth, with spread wings. 

 FiG. 23. Ailanthus worm ((Eta compta, Clem.), moth, with closed wings. 

 FIG. 24. Seed-corn Maggot (Aiithomi/ia ~cw Riley), fly, enlarged. 

 FIG. 25. Raspberry Geometer (Allude* ntbivora Riley), moth. 



FIG. 26. Strawberry Leaf-roller (Anchylopera fragarios Walsh ct Riley), moth, enlarged. 

 FiG. 27". Strawberry Leaf- roller (Anchylopera fragariee Walsh & Riley), moth, natural 



size. 



FIG. 23. American Meromyza (Mcromysa am< ricnua Fitch), fly, enlarged. 

 FIG. 29. Grape-berry Moth (Penthina ritirorana Pack.), moth, enlarged. 

 FiG. 30. Grape-berry Moth (Poithitm riliroraita Pack.), moth, natural sixe. 



WOOD-CUTS. 



FiG. 1. Harris's Bark-louse (Axpidiotns Harrixn Walsh). 



FIG. 2. Oyster-shell Bark-louse (Asiridiotuis roncliiformis, Gm61iu). 



FK;. 3. Oyster-shell Bark-louse (Aspidiotus concliiformts, Ginelin). 1, egg (natural size 

 scarcely .01.) 2, larva, as it appears when running over tlie twigs (natural 

 size .01.) 3, its appearance after becoming fixed. 4, appearance of scale 

 after the second plate is formed. 5, form of louse (ventral view) soon after 

 losing its members. 6, form of louse (ventral view) when full grown and 

 just about to deposit. 7, fully formed scale, containing louse, as it appears 

 from the under side when raised. 8, highly magnified antenna of larva, 

 showing joints. 



FiG. 4. Twice-stabbed Ladybird (Ckilocorus biniliierus Mills.)- [From tho Practic a 

 Entomologist.'] 



FIG. 5. Twice-stabbed Ladybird (ChUocorus liriihierus Muls.), larva. 



FK;. 6. Seventeen-year Cicada (Cicada scph-.mdecim Linn.). A. $ of typical form ; c, d, 

 genital hooks ; g, singing apparatus. B, $ of the small form (cassinii) ; 

 e, /, genital hooks. 



FK;. 7. Seventeen- year Cicada (Cicada ixylemdecim, Linn.), a, pupa; I, cast pupa 

 shell; c, imago; d, punctured twig: e, two eggs. 



P'K;. 8. Seventeen-year Cicada (Cicada sfptemdecim Linn.), galleries made by pupa ; 

 a, front view, e, orifice ; I, section, c, pupa awaiting time of change, d, pupa 

 ready to transform. 



FIG. 9. Twig punctured by the Seventeen-year Cicada (Cicada septemdedm Linn.). 



FIG. 10. Twig healed after the puncture of the Seventeen-year Cicada (Cicada scptem- 

 dccim Linn.). 



FiG. 11. Thirteen-year Cicada (Cicada ttrdtnin Linn.), newly hatched larva. 



FIG. 12. Stizusgrandis Say, 2. 



FIG. 13. Seventeen-year Cicada (Cicada xeiili-inda-'un Linn.), side view of J to show 

 beak, a, and ovipositor, b. 



