LIST OF DESCRIPTIONS. 
he Yellow Jumping Peak Louse (Triozapyrifolice, n. s.), p. 99. 
Yioza diospyri , Ashmead, p. 100. 
leurodes aceris, n. s., p, 110. 
laptus aleurodis, n. s.; female, p. 111. 
ygus invitus. Say. p. 111. 
he Elm Borer (Saperda tridentata, Oliv.): larva, p. 113; imago, p. 114. 
n Elm Bark Louse (Lecanium, sp.), p. 115. 
Jematus robinice, n. s., p. 116. 
<ccopsis exoletum, Zeller: larva, p. 117; imago, p. 118. 
YII 
