55 



Pbrc 



Red-shoulilcri'd ptitiid honr :W 



Re<hV(M)(l liiirk-tn'utle 45 



KliiiioeeroM iK'ftlo 32 



Kocky MuuMtiiiii lent-eutorpillur SI 



Root-tKjrer, cottoiiwood 37 



live oak 37 



Rosy Hypiirpax 30 



Rouml-huiidod Ixirors 3I,3.'» 



Rust ie borer 38 



Rusty tussock-moth 30 



SawHies 32 



Sawll y, larch 32 



lart'c American 32 



white pine 32 



Sawyer, commou i)ine 35 



ponderous 21 



white jiine 21 



Scale insects 33 



Scolytus, California white lir 21 



lir branch 20 



red spruce 20 



single-spine 20 



smaller fir tree 20 



Seed and fruit insects 13 



Seventeen-year Ciaida 33 



Single-spine Scolytus 20 



Slug caterpillars 31 



Small-eyed Klater 12 



Smeared dagger-moth 29 



Span-worm, western oak 31 



large forest 31 



Sphinx, ash 28 



catalpa 28 



four-horned 28 



pine 28 



wavy ash 28 



western jKjplar 28 



walnut 28 



Spider-li ke clerid 42 



Spring canker worm 31 



Spruce bark-beetle 25 



American 25 



minute 2i> 



black, wood-engraver 24 



borer, wavy 37 



cone-wi (rm .33 



f'ryphalus 24 



destroying beetle 26 



Douglas, bark-lxirer 21 



Hylesinus 20 



twig-wecvil 22 



Knglcmann, gall-louse 23 



red, Scolytus 20 



smid 1 bark-beetle 25 



Sitka, Dolurgus 18 



gall-louse 23 



Hylurgops 1>) 



Tomicus 17 



twig-weevil 7 



timber-beetle 16 



twig wiKMl-engraver, minute 24 



weevil, western 3-1 



while, bark-beetle 25 



wood 1 Mirer, dcstnu'tlve 27,37 



Spriice wood-eiiirravir 24 



Page. 



Sugar-oanc ambrosia-beetle 45 



Tent-cateri)illar, American 31 



Cal iforniun 31 



forest 30 



northwestern 31 



Rocky Mo\intain 31 



tufted .30 



maker, poplar 29 



Thun<lerbolt beetle 37 



Timber-beetle, birch 16 



cosmoj)olitiin 10 



hickory 39 



large mahogany 40 



spruce 16 



worm, chestnut 40 



oak. (."vv; Northern Bren- 

 thi.s.) 



Tomicus, four-spined 18 



Hudson Ray 25 



Oregon 17,41,44 



silver pine 18 



Sitka si)riice 17 



smaller sugar pine 17 



western li ve-spined IS 



Tremex, pale 40 



pigeon 40 



Trogositids 43 



Tuberculato colydiid 43 



Tufted tent-caterpillar :{0 



Turi)entine-beetlc, dark rc<l 19 



borer 39 



Tas.sock-caterpillar, hickory 29 



oak 29 



pale 29 



pine 29 



moth, California 30 



dark 30 



rusty 30 



white-marked 30 



Twiir-b<'eil.-, .IclTrey pine 17 



Monterey pine 16 



Sitka spruce 17 



white pine 21 



insects 12 



maggot 23 



miner, pine 23 



weevil, Douglius sprnci> 22 



Two-lined chestnut borer 3S 



I'nderwing moths 29 



llrographis, banded 38 



Viceroy butterfly 27 



Violet-tip butterlly 27 



Walking-stick, common 32 



Walinit borer, blue-winged 3t'i 



fruit weevil 3;5 



Sphinx 28 



weevil 34 



Web-wi irm, cherry-leaf 31 



fall 29 



oak 31 



Weevil, cypress ;14, 46 



lir 34 



nut 83 



pales 84 



piuc fiuigus-giiU 22 



