236 Ins, 
EHYNCHOTA. 
[Balbiani, E. Gr.] Sur I’^closion de Toeuf d’hiver du Phylloxera de la 
Vigne. Tom. cit. pp. 833 & 834. 
The author has observed the . hatching of a perfect Phylloxera from 
the “ winter-egg.” This insect partakes at the same time of the cha- 
racters of the maternal form from which it has issued by binary genera- 
tion, and of those of the long line of descendants which it will itself 
produce by parthenogenesis. Cf. M. Girard, Pet. Nouv. ii. p. 34. 
. Sur la parth^nog^nese du Phylloxera, compar^e h celle des autres 
Pucerons. Op. cit. Ixxxiii. pp. 205-209. 
Chiefly in opposition to Lichtenstein’s opinions. 
. Nouvelles observations sur le Phylloxera du ch^ne, compart au 
Phylloxera de la vigne. 'Tom. cit. pp. G99-702. 
Both species lay their eggs only on the plants on which they are 
respectively parasitical ; and their evolution is much less influenced by 
difference in latitude than by climatic occurrences. 
. Recherches sur la structure et sur la vitalite des oeufs du Phyl- 
loxera. Tom. cit. pp. 954-959, 1020-1026, 1160-1166. 
Boiteau, P. Sur I’oeuf d’hiver du Phylloxera. 0. R. Ixxxii. 
pp. 155-157. 
!l^closion de I’oeuf d’hiver du Phylloxera de la vigne dans la 
Gironde ; caract5res de I’insecte. Tom. cit. pp. 984-986. 
This hatching occurs in the middle of April. 
. Sur le Phylloxera issu de I’oeuf d’hiver. Tom. cit. pp. 1043 & 
1044, 1143-1145. 
. Sur les galles des feuilles de vignes fran 9 aises ; ponte de I’insecte 
issu de I’oeuf d'hiver ; delusion des oeufs formant la deuxieme g^n4- 
ration ; migration de ces nouveau-nds. Tom. cit. pp. 1316-1318. 
. Sur le Phylloxera a^rien. Op. cit. Ixxxiii. pp. 131-134. 
. On the economy of the leaf-gall form. 
. Observations sur le d^veloppement et les migrations du Phyl- 
loxera. Tom. cit. pp. 430-432. 
-. Lettre k M. Dumas sur les produits de I’oeuf d’hiver du Phylloxera 
vastatrix. Tom. cit. pp. 848-851. 
Endorsing Balbiani’s views. 
Lichtenstein, J. Notes pour servir a I’histoire des insectes du groupe 
des Phylloxdriens, Homopt^res formant la transition des Aphidiens 
aux Coccidiens. Ann. Ent. Belg. xix. pp. 164-177 (also separately, 
Paris : 1876, 8vo, pp. 14). Abstract by R. Hickel ; Feuil. Nat. vi. 
p. 120. 
After some general and historical observations, the names “Homo- 
pteres Anthogenesiques ” are proposed for Acanthochermes, Kollar, in 
which the pupiferous form is apterous, Phylloxera, Boyer (of which 
only P. coccinea^ Heyd., a species named P. punctata, pp. 171 & 173, 
from France and Switzerland, P. quercus, Boyer, P. florentina, Targ., 
and P. corticaliSf Kalt., are recognized), and Rhizaphis, Planchon 
