LIST OF DESCRIPTIONS. 
1. The Corn Root-Worm. [Diabrotica longicornis, Say): imago, p. 15; pupa, p. 16; 
larva, p. 17; egg, p. 18. 
2. The Ciiinch-B(tg Bacterium (Micrococcus insectorum, Bun-ill): p. 52. 
t; 
3. The Strawberry Crown-Borer ( Tylo derma fragarics, Riley): imago, p. 65; larva, 
p. 66; pupa, p. 66. 
[ 
4. The Strawberry Crown-Miner (Anarsia liueatella, Zeller): imago, p. 79; larva, 
n. 80. 
T[ ” y « 
1 5. The Melon Plant-Louse (Aphis cucumeris, n. s.): winged female, p. 85; pupa, 
p. 86; wingless female, p. 87; root form, p. 87. 
6. The Cherry-Slug or Pear Slug (Selandria cerasi, Peck): p. 99. 
7. Apanteles orobence , n. s., p. 104. 
I * c 
8. The Lombardy-Poplar Borer ( Agrilus yranulatus , Say): larva, p. 121; pupa, 
p. 122. 
9. Phytoptus abnormis, n. s., p. 134. 
. 
10. Phytoptus acericola., n. s., p. 135. 
11. Phytoptus quadripes, Shimer, p. 135. 
12. Phytoptus fraxini , n. s., p. 136. 
13. Ph ytoptus ulmi , n. s., p. 137. 
14. Phytoptus salicicola. n. s., p. 138. 
15. Phytoptus querci, n. s., p. 138. 
16. Phytoptus thujce, n. s., p. 138. 
17. Phytoptus pyri, Scheuten, p. 140. 
18. The Angoumois Grain-Moth (Gelechia ccrealella , Oliv.): imago, p. 146; larva, p. 
146; pupa, p. 147. 
19. Ileteropus ventncosus, Newport, p. 140. 
20. Pteromalus gelechiai, u. s., p. 151. 
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