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THE AMERICAN NATURALIST. [Vou XXXIII. 
ARACHNIDA. 
1. Large Biting Spiders, many birds. 
2. Scorpion, screech owl, great-horned owl, burrowing owl. 
. Myriopopa. . 
1. Lithobius and others, many birds. ` 
Special Devices — IIl-Flavored, or Scented, or with Irritating Qualities. 
HYMENOPTERA. 
1. Ants, most land birds. 
. HEMIPTERA. 
1. Heteroptera, all insectivorous birds. 
(a) Anasa, broad-winged hawk, red-shouldered hawk. 
(4) Prionidus cristatus, crow. 
(c) Pentatomide, majority of insectivorous birds. 
(d) Hygrotrechus, song sparrow. 
COLEOPTERA. 
1. Carabide : 
(a) Smaller Carabidae, such as Amara, Anisodactylus, Ago- 
noderus, Pterostichus, Cratacanthus, Bembidium, and 
smaller Harpalus, all insectivorous birds. 
(4) Harpalus caliginosus, or pennsylvanicus, crow, black- 
birds, meadow lark, catbird, brown thrasher, robin, 
kingbird, Cassin’s kingbird, dickcissel. 
(¢) Carabus, bluebird and crow, crow blackbird. 
(d) Cychrus, crow blackbird. 
(e) Galerita janus, bluebird, blue jay, young crow black- 
birds. 
) Chleenius, crow, crow blackbird, catbird, bluebird. 
(g) Calosoma scrutator, or calidum, crow, crow blackbird, 
red-headed woodpecker, blue jay, cuckoo. 
Histeride and Scarabeide Laparosticti (Aphodius, Atænius 
Onthophagus, Canthon) (foul from food), most insectivorous 
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Silphidæ (Silpha or Necrophorus), crow, loggerhead shrike, 
kingbird. 
Some Tenebrionide : 
(a) Nyctobates, catbird. 
Coccinellide, flycatcher, red-eyed vireo, song sparrow, marsh 
wren, Lewis’s woodpecker. 
Chrysomelide : 
(a) Potato Beetle (Doryphora 10-lineata), wood thrush, 
rose-breasted grosbeak, quail, crow, cuckoo, catbird. 
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