680 CoNTENTS 
The rosy apple aphis (continued) PAGE 
Natural history (continued) 
Autymn forms: 3.3. s.26 os sic leaden pig iets eas 6 Siri ol oie © oie eee 747 
The winged female. ........ 22.5222 i es ho ld ss eee eee 748 
Ahern le ee ie tee eo se Feats gh eeepc ps eee oh eee 748 
The oviparous female. oo: 5. $4.55 .shs, depeche sic sce be ee 749 
The apple-bud aphis, or oat aphis (Aphis avenae Fabricius)............:.........2-- 750 
Naturallthistory 3.0285 foo oe so pec ees ses SS 750 
The stem:mother =0./2/5 300500. 20s 6s cn Seis ss ne eee 751 
Description of stages: *).).02s2 bce Seed ao es hs ee 751 
The second generation 2.03)... .055 Yee Sas es oe ss ee eee 752 
Deseription:of stages). 5. 6.s0jc2 5.3 22. sete eo eo EEE 752 
The third. generation... 2.2.5... fs. Sd a seins wis sw ve oe ee ee 753 
Description of stages: ..02 05 eh yn bch: os el eee 753 
Summer life history... 23.8..:)0-0 2 he vee ce Sales wpe Susie eee 754 
Whe) fallomigrant,. )s22.): Sok Ss. sac os oes 2 +yo apes ase Be eee 754 
Description’ of fall migrants. ..<.).. 23. 2425 95 scm see eee 755 
Effects of attacks of plant lice on the apple tree and its fruit........................ 756 
The'igreen-apple aphis 0.0.22. fos chee so ed sis seicite eed ae Gene 756 
The rosy “apple:aphis<. 0). 2.!50. seen bs els scat re sae 2 oeceodio>: Ga ee eee 757 
The apple-bud ‘aphis 2.0... 30/0. eaeais sb) hw a oe ee ee 758 
The aphis situation during the last of Jume each year ...................02.00000ee- 758 
Bibliography. css «ws loses seb ble ales oleteyslete Gieudi tus ave loco barton ee kre eee 760 
