LIST OF PLATES xv 



PL XXXVII. Attacks of Cryptorhync/ius brandisi, Steb., in Finns 



longifolia ... ... ... ... ... ... ... To face page 430 



PL XXXVIII. Cyrtotrachelus longipes, Fabr., egg, larva, beetle, young 



Melocanna bambitsioidcs shoot, and pupal coverings... ,, ,, 440 



PL XXXIX. To-micns ribbentropi, Steb., in spruce bark ... ... ... 462 



PL XL. Egg-galleries of Tomicns ribbentropi in sapwood of spruce ,. 466 



PI. XLI. Bark of Finns gerardiana showing the "weeping" pro- 



duced by resin oozing from the entrance-holes of 

 Polygraph its trenchi, Steb. ... ... ... ... ,, 470 



PL XLI I. Galleries of Sphaerotrypes globulus, Blandford, in Termi- 



nalia tomentosa ... ... ... ... ... ... 478 



PL XLI 1 1. Entrance and exit holes of Sphaerotrypes globieliis, Bland- 

 ford, in sal bark ... ... ... ... ... ... 487 



PL XL1V. Galleries of Sphaerotrypes globulus, Blandford, in sal ... ,, 488 



PL XLV. 1-3. Sphaerotrypes querci, Steb., larva, beetle, and larval 



galleries. 4. Chramesits globulus, Steb. 5. Diapns 

 impress us, Janson. 6. Crossotarsus fairmairei, 

 Chap.,var. ... 494 



PL XLVI. i. Polygraphits major, Steb. 2. Polygraphus pini, Steb. 



3. Tomicns ribbentropi, Steb., larva, pupa, beetle ... 501 



PL XLVII. Polygraphus major, Steb., in deodar bark 504 



PL XLVI II. i. Polygraphus trenchi, Steb., larva, pupa, beetle. 2. 

 Fhloeosimis zhobi, Steb., egg and beetle. 3. Fityo- 

 genes coniferae, Steb., female and male beetles 511 



PL XLIX. Galleries of Polygraphus trenchi, Steb.. in the bark of 



Pin// s gerardiana ...... .,516 



PI. L. ( Galleries of Polygraph us />////. Steb.. in the bark of blue 



pine ... ... ... ... 5 2 4 



PL LI. Polygraph/is longifolia, Steb., larva, pupt, beetle, and 



entrance-holes and larval galleries in bark of Pi nits 

 longifolia ... ... ..526 



I'l. LLI. Galleries of Dryoioetes hewetti, Steb., in (htcrcu ., ; 



PL L11I. Galleries of Tomicns ribbentropi, Su-b.. in spruce bark 



(coloured)... ... ^ ^ - 



PL LI\'. Egg and larval galleries of Toinicii s ri/>/x-n/ropi. 



blue pine bark 



PL LY. 7'omitus longifolia, Stel)., larva, pupa. be<-il'-. enll 



holes in bark, ami a pairing-chambei in the sapwood 

 of Finn s longifolia 



PL LVI. Galleries of Tomicns longifolia. Steb.. in the sapumul . 



/'inns longifolia ... 



PL LY1I. I. Siolytus major. Steb., larva, pupa, and be< 



Scolytus minor. Steb.. larva, pupi. and b 



