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Elm Borers and Elm Bark Louse : Elm Borer (Sapreda tridentata Oliv.). 1. Larva or grub within its burrow
1. Elm Borers and Elm Bark Louse : Elm Borer (Sapreda tridentata Oliv.). 1. Larva or grub within its burrow just under the bark; 1a, Larva or grum extended; 2. Pupa within its cell just under the bark; 3. Burrows of the grub as exposed after removal of the bark; 4. Adult beetle.
Elm Snout Beetles (Mardalis): 5. Adult of Magdalis armicollis Say; 6. Adult of magdalis barbita Say; 6a. Side view of same; 7. Larva of Magdalis barbita, side view; 8. Pupa of Magdalis barbita within its oval cell just beneath the bark; 8a Empty pupal case of Magdalis barbita; 9. Burrows of Magdalis barbita as exposed after removal of the bark; 9a. Holes in the bark through which the beetles escape; 9b. Showing how bark is loosened by the burrows of this insect.
Elm Bark Louse (Gossyparia ulmi Geoff): 10. Group of partly grown bark lice as they appear in the early spring; 11. Group of male cocoons; 12. Group of male cocoons; 13. Group of females; 14. Female; 15. Recently hatched young; 16. Mature female; 16a, Mature females on a twig; 17. Pesudimago or wingless male; 18. Winged male.... Note also the long, white, anal filaments
Women reeling raw silk from the cocoons of silkworms, Kobe, Japan, ca. 1906
2. Women reeling raw silk from the cocoons of silkworms, Kobe, Japan, ca. 1906
Leopard Moth (Zeusera pyrina Fabr.): 1. Empty pupal case from which female moth has emerged; 2. Female
3. Leopard Moth (Zeusera pyrina Fabr.): 1. Empty pupal case from which female moth has emerged; 2. Female moth with wings folded; 3. Male moth with wings expanded; 4. Nearly full grown caterpillar, probably a female; 5. Male pupa in its burrow; 6. Exit hole covered by a loose piece of bark which the pupa will push off as it partly emerges; 6a. Another; 7. Hole made for the pushing out of excrement and then closed by a silk web; 8. Same as above, but in use with particles of excrement dangling by silken threads; 9. Work of caterpillar a preceding season; 10. Work of caterpillar the present season; 11. Young twig eaten by larva, point of entrance at a. Maple borer (Sesia acerni Clem.): 12. Hole from which pupal case has fallen; 13. Bark nearly eaten through ready for the pupa to push out; 14. Empty pupal skin; 15. Two cocoons as spun; 16. Moths expanded and at rest; 17. Excrement of caterpillars; 18. Caterpillar in its burrow
White Marked Tussock Moth (Notolophus leucostigma Abb. and Sm.): 1. Full grown caterpillar; 2. Male moth
4. White Marked Tussock Moth (Notolophus leucostigma Abb. and Sm.): 1. Full grown caterpillar; 2. Male moth at rest; 3. Female moth laying eggs on her recently vacated cocoon; 4. Several cocoons; 5. Cast skins of caterpillars; 6. Work of young caterpillars on under surface of leaf; 7. Male pupa; 8. Branch girdled by caterpillars; 9. End of branch broken off at the point where it was girdled; Forest Tent Caterpillar: Maple Worm (Clisiocampa disstra Hubn.): 10. Female moth; 11. Male moth; 12. Egg belt encircling twig; 13. Full grown caterpillar; 14. Cocoon in a leaf; 15. Pupa; 16. Cast skin of caterpillars
Knobbed Whelk (Right); Channelled Whelk (Left); Egg cocoons of the chanelled whelk (Below)
5. Knobbed Whelk (Right); Channelled Whelk (Left); Egg cocoons of the chanelled whelk (Below)
Horse Mussel or Bearded Mussel. From Life. A Scale-limpet (Patella testudinalis) and seven egg cocoons
6. Horse Mussel or Bearded Mussel. From Life. A Scale-limpet (Patella testudinalis) and seven egg cocoons of the Rock Snail (Purpura lapillus) are seen upon the right hand shell
Northern Sand-collar Snail crawling over a sandy bottom between two of its egg cocoons. From life. Cape
7. Northern Sand-collar Snail crawling over a sandy bottom between two of its egg cocoons. From life. Cape Ann, Massachusetts
English Whelk and its Egg Cocoons
8. English Whelk and its Egg Cocoons
Insects Affecting Hard Pine : 1. Pitch mass of pitch twig moth Retinia constockiana Fern., with pupal
9. Insects Affecting Hard Pine : 1. Pitch mass of pitch twig moth Retinia constockiana Fern., with pupal shwll protruding therefrom in one case; the other shows old and recent pitch; 2. Pitch mass of pitch inhabiting midge, Diplosis resinicola Osten Sacken; 3. Shoot infested with Nantucket p9ine moth larva, Retinsia frustrana Scudd., showing the abortive growth; 4. Pitch pine needle gall fly, Diplosis pini-rigidae Pack., showing needles deformed by this insect; 4a. Work on needles of the prefious year; 5. Needles affected by the pine leaf miner, Gelechia pinifoliella Chamb., note the brown tips of the affected needles; 6. A pine sawfly larvae, Lophyrus abietis Harris in nabural position on the needles; below are stubs of eaten needles; 6a. Cocoon of same at base of pine needles; 7. Pine Chrysomela, Glyptoscelis pubescens Fabr...; 8. Pales weevil, Hylobius pales Herbst.; 9. Chrysobothris pusilla Bap. & Gory; 10. Chrysobothris florcola Gory; 11. Chrysobothris dentipes Germ.; 12, 13, and 14. Varieties of the light loving grapevine beetle, Anomala luciola Fabr., a species which is very abundant on hard pines; 15. Pilophorus crassipes Uhl....; 16. Magdalis alutacca Lec.; 17. Magdalis perforata Horn; 18. Lace winged fly, Chrysopa species; 18a. Cocoons of same on needles
   
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