a 449 



Maple sesian, 50", 56^-58®. 

 ^faple trumpet skeletonizer, 106-, 168^-69®. 

 Maple worm, 52', icXj^-is". 

 marginal -s, Cliauliojjnathus, 153*. 

 Martins, 26'. 



Massospora cicadina, 2^,"/*. 

 Megilla maculata, 195^, 320'. 

 Melanerpes erythrocephalus, 29'. 

 Melanobracon simplex, 70". 261". 

 Melasoma scripta, 258', 3i7*'-22-. 

 mella, Tachina, 113^, 138*, 139*. 

 melleiis, Mesochorus, 158*. 

 Mesochorus agilis, 131^. 



melleus, 158^. 

 metallicus, Tridvmus, 301*. 

 Metamorphism of insects, i3*'-2o''. 

 meteori, Bathythrix, 140''. 

 Meteorus communis, 138". 



hyphantriae, 131'-'. 138''', 145®. 

 figure, 145. 

 microgaster, Smicra, 74". 

 Microgasters, 22-. 

 Midges, gall-making, ii^ 

 Miminae, 31*. 



minuta, Eupsalis, 256*, 26i*-63®. 

 minuta, Phora, 158^ 

 minutissimus, Pityophthorus. 257^, 295'. 

 misella, Pentilia. 222''. 

 Mniotiltidae, 31°. 

 m.olochinus, Ouedius, 153'. 

 Monarch butterfly, 19'. 

 Monarthrum mali. 257*', 289^-92*. 

 Mottled willow borer, 100^-3'. 

 Mountain ash. insects injurious to: 



apple borer, round-headed. 51^, 84*. 



flat-headed borer, common, 87-. 



Putnam's scale, 227*. 



scurfy scale^ 215*. 

 Mourning cloak butterfly, 160^ 

 !\Iulberry, painted hickory borer afTecting, 



264®, 266*. 

 mytilaspidis, Aphelinus, 212^, 222^, 231*. 

 mytilaspidis, Tetranychus, 14*. 



Myzus achyrantes, 249*. 

 cerasi, 246'. 



Neoclytus capraea, 257-, 279^-80''. 



erytlirocei)halus. 50", 70*, 7i"-73", 261^. 

 Neoglaphyroptera bivittata, 140". 

 nigriceps, Phora, 140''''. 

 nigricornis, Leucopis, 182-'. 

 iiigritulus, Cybocephalus, 231^. 

 nigrofasciatum, Eulccanium, 49, 173', 



200''-3'. 



Northern Brenthian, 256''', 26i**-63®. 

 nuncius, Cryptus, 158^. 

 Nuthatches, 32^, 111^. iii", 191*. 

 Nymphs, use of term, 15'. 



Oak, insects injurious to: 

 borers : 



apple wood stainer, 290*. 

 brenthian, northern, 256*^, 261®. 

 carpenter worm, 7*, 51-, 79^, 83®. 

 chestnut borer, two-lined, 257-'. 280". 

 flat-headed borer, common, 87-. 

 hickory borer, banded, 268-. 



tiger, 256', 268". 

 hickory snout borer, 275'. 

 leopard moth, 78°. 

 oak bark beetle, minute, 295-. 

 oak twig pruner, 50", 59^. 

 pigeon tremex, 63". 

 powder post beetle, 296®. 

 red horned borer, small, 298^ 

 rustic borer, 256^, 259-. 

 twig girdler, 2^2,^. 

 Xyloterus politus, 257". 292*. 

 leaf feeders : 



bag or basket worm, 127-. 



black walnut caterpillar, 305*. 



brown tail moth, 164^. 



buck moth, 258^, 310^. 



forest tent caterpillar, 107^, iio^ 



no", 

 gipsy moth, 120'*. 



