ArHIDIDiE. 
Ins. 237 
(adopted for P. vastatrix)^ in which two latter genera the pupiferous form 
is winged. 
Lichtenstein, J. Notes pour servir ^ Thistoire des Insectes du genre 
Phylloxera. Paris : 1876, 8vo, pp. 14, 1 pi. [Extr. from Annales 
Agronomiques, ii. No. 1, 1876]. 
Reviewed in Ent. Nachr. ii. pp. 129, 136-138, 153, & 154. 
. Beobachtungen iiber die Naturgeschichte der Phylloxera. MT. 
schw. ent. Ges. iv. pp. 510-533, pi. 
A translation by E. Frey-Gessner of the last-mentioned paper. The 
plate gives an excellent idea of the whole circle of existence of the 
insect. 
Lichtenstein’s opinion (in Annales Agronomiques, ii. p. 128), that 
Phylloxera is nearer the Coccidm than the Aphididce, was anticipated by 
Leuckart in 1859, referring to P. quercus \ Balbiani, 0. R. ixxxiii. p. 206, 
note. 
— — . Zur Systematik von Phylloxera. S. E. Z. xxxvii. p. 64. 
The author reiterates his opinion that Phylloxera should be placed in 
the CoccidcB^ considering the economy and metamorphosis more impor- 
tant than wing-structure. Ho divides this section of the Homoptera into 
two families, viz. with one or more generations viviparous, “Aphidida,” 
always oviparous, “ Coccidida.” Phylloxera, A leurodes, and Chermes, 
having four wings, form a transition to the Goccidce. 
• . Weitere Beotrage zur Geschichte der Phylloxera. Tom. cit. pp. 
231 & 232. 
. Weitere Beobachtungen iiber Phylloxera. Tom. cit. pp. 386-388. 
See also Bull. Soc. Ent. Fr. (5) vi. pp. xxxviii. & xxxix., for a com- 
parison by this author of the propagation of Phylloxera with the growth 
of plants ; also pp. Ixiii. & Ixiv., as to distinction [of this genus from 
Rhizaphis (see Girard & Signoret, 1. c. pp. Ixxvi.-lxxviii. ; and Lichten- 
stein in reply, pp. xciii.-xcv.). On migration to different plants, p. cli. 
. Sur les oeufs des Phylloxeras. C. R. Ixxxii. pp. 610-612. 
. Sur le Phylloxera issu de Toeuf d’hiver. 7’owi. cit. pp. 1145 & 
1146. 
. Notes pour servir ii I’histoire des Phylloxdriens et plus particu- 
lierement de I’espece Phylloxera Acanthohermes, Kollar (s. Acanth. 
quercus). Tom. cit. pp. 1318-1321. 
. Confirmation nouvelle des migrations phyllox^riennes. Op. cit. 
Ixxxiii. pp. 325-327. 
A repetition of the author’s experiences as to the changing from one 
plant to another by the same species in different stages, and reference 
to Targioni-Tozzetti’s similar results, P. signoreti being only the 2nd 
winged form of P. florentina. 
. Note sur les Phylloxeras. Tom. cit. pp. 656 & 657. 
P. quercus found on the vine. 
