APHIDIDiE. 
Ins. 247 
Riley, C. V., & Monell, J. Notes on the AphidicR of the United 
States, with descriptions of species occurring West of the Mississippi. 
Part i. — Biological Notes on the Pemphigince^ with descriptions of 
new species, by C. V. Riley ; pp. 1-17. Part ii. — Notes on Aphidince^ 
with descriptions of new species, by J. Monell; pp. 18-32. \Cf, 
also, P. Am. Ass. 1878, pp. 288 & 289.] 
Riley points out that Pemphiginm do not migrate from trees to the 
roots of grass' to hibernate, as Lichtenstein supposed, and remarks on the 
difficulties in the way of classifying these insects. The natural history of 
several species is given at length, including Coloplia ulmicola^ Fitch, 
pp. 9-13, pi. i. figs. 2 a-g, and Hormapliis spinosus, Shimer, pp. 14 & 15. 
Monell mentions the described N. American genera and species of ApM- 
dinca more briefly, but redescribes several. 
Torelli, L. Sulla Phylloxera vastatrix. Seconda Memoria. Atti 1st. 
Venet. (5) v. pp. 3-41. 
Discusses the history of the insect since 1872, when the former report 
was published. Several public documents are appended. 
General notes on Ap>hides ; E. A. Fitch, Ent. xii. pp. 246-260. 
On preserving Aphides for collections ; Lichtenstein, Ent. M. M. xv^ 
p. 191, CR. Ent. Belg. xxii. pp. xlix. & 1. 
Aphides destructive to potatoes ; DragendorfiP, SB. Ges. Dorp. v. 
p.31. 
Remarks on the transformations of Aphides ; Lichtenstein, CR. Ent. 
Belg. xxii. pp. xii.-xiv. 
Notes on the habits of the Aphides of the elm ; Kessler, Ber. Ver. 
Oassel, xxvi. & xxvii. p. 67, Ent. Nachr. v. pp. 279-284, 316-319. 
Schizoneura compressa, Koch, and Tetraneura alba, Ratz. (? = T. pallida, 
Hal.). Comparative description of galls, and the former figured ; F. Loew, 
Verb. z.-b. Wien, xxix. pp. 65-70. 
Pelonium kirbii, Lacord., nec Gray, = Enoplium rufipes, King ; the 
latter is distinct from trifasciatum, Cast. C. A. Dohrn, S. E. Z. xl. pp. 
184 & 185. 
Lachnus pini, Kalt. Metamorphoses ; Canestrini & Fanzago, Atti Soc. 
Pad. V. pp. 173-176. . 
Lichtenstein’s notes on Pemphigince, &c., translated from CR. Ixxxvii. 
pp. 782 & 783, Ann. N. H. (5) iii. pp. 174 & 175. 
Pemphigus, sp. n., on terebinth, id. Bull. Soc. Ent. Fr. (5) ix. p. cxv. 
Haploneura lentisci, migrations ; id. S. E. Z. xl. pp. 181 & 182. 
Tetraneura ulmi. Migrations ; id. Ent. M. M. xv. pp. 190 & 191. 
Phylloxera vastatrix. Fertilized eggs in the upper layers of soil ; Boi- 
teau, C. R. Ixxxix. pp. 772-774. See also Balbiani, 1. c. pp. 846 & 847, 
1027 & 1028. Oviposition of the winged insect in Languedoc ; V. Mayet, 
1. c. pp. 894 & 895. Phylloxera carried by wind ; Faucon, 1. c. p. 983. 
Notes by Lafitte, p. 1029. Many other viticultural observations in C.R. 
Ixxxviii. & Ixxxix. Mode in which its attacks destroy the vine by rotting 
it, and opening the way to fungous parasites; Millardet, Assoc. Fr. vii. 
pp. 653 & 654. Discussion ; Lichtenstein, &c., C. R. Congres Int. 
1878, i. pp. 162-190. Probably indigenous to America ; Collet, Am. Nat. 
