APHII)IDJ5. 
417 
Thylloxera vastatrLr. C. V. Riley, iv. Rep. Ins. Mo. pp. 65-71, fig. 28, 
describes and figures the earlier stages &c., under the earlier name of P. viti- 
folicc, Fitch, which he thinks must give way to the more correct and better- 
known one of vasfatrivj Planchon. The author gives further proofs of the 
identity of the American and European insects, and of the “leaf-gall louse ” 
with that found in the root. The habits of the latter are fully discussed, 
and fresh facts as to its economy recorded ; the susceptibility of many dif- 
ferent vines to attack, and the means of contagion, being stated in detail. 
European vines are supposed to succumb more readily than American, because 
they are of a more highly improved and tender character, and, the disease 
being in Europe of recent introduction, are not descended from sturdy plants 
that have withstood or survived the infection in former years. Practical 
suggestions are given for preventing contagion j and various remedies are 
enumerated, of which carbolic acid seems the most satisfactory. A new 
species (P. rileyi, Lichtenstein, MS.), from leaves of American “post-oak,” 
is indicated, p. 66, note. 
A general account by Gervais, J. Zool. i. pp. 112-120, figs. 1-4. 
Giu^rin-M^neville, R. Z. (2) xxiii. pp. 458-462, summarizes recent observa- 
tions, adhering to his opinion tliat this insect is only a secondary agent, tho 
consecutive phenomenon of a profound malady in the vine. 
A. Miiller, Canad. Ent. iv. p. 107, quoting the Report of Scientific Com- 
mittee of Royal Horticultural Society as to loss occasioned by this species to 
vineyards in Portugal, considers national cooperation required in order to 
check its further progress. 
Observations on its ravages in Swiss vineyards by Stierlin, MT. schw. ent. 
Ges. iii. p. 434. 
Von Frauenfeld, Verb. z.-b. Wien, xxii. pp. 667-572, refers generally to 
this pest, and especially as to its occurrence in Germany. 
Boisduvalia latanics, Sign., is an Aphis infested by gregarines : Leprieur, 
Bull. Soc. Ent. Fr. (6) ii. p. xxx. 
Psylloptera, g. n., Ferrari, 1. c. ii. p. 85. Chermesinm : antennae short, 
4-jointed (winged $), last joint bisetulose ; wings horizontal, anterior with 
a costa and stigma, the cubital and radial veins each with a single fork ; no 
veins to posterior wings ; no nectaries or tail ; tarsi with 2 hooks. P. qtter- 
cinn, sp.n., id. ihid., Stazzano, on Quercus cerris. 
Siphonophora duhia. p. 55, Stazzano, on Artemisia campestris, S. imdcc, p. 57, 
Genoa, on Intda viscosa, S. atra, p. 68, on Artemisia camphoratn, Genoa and 
Stazzano, Ferrari, 1. c. ii. ; S. Icucanthemi, p. 214, Stazzano, on Leucanthe- 
mum vulgarc, S. lilacina, p. 216, Serravalle, on Tanacetum vidgare, id. 1. c, iii. : 
spp. nn. 
Phorodon pruni, sp. n., id. 1. c. ii. p. 69, Genoa, on Primus mahaleh. 
Aphis hold, p. 62, Genoa, on Holcus mollis, A. spectabilis, p. 64, Serravalle 
Scrivia, on Snlix, A. helianthcmi, p. 65, Stazzano, on Ilelianthemum mlgare, A. 
conrolmlicola, p. 66, Stazzano, on Convolvulus arvensis, A. vicitis, p. 67, Genoa, 
on Vicitis agnicasti,A.coronill(B, p. 69, Stazzano, on Coronilla pusiUa,A.hrmmea, 
p. 70, Stazzano, on Ononis natrix, A. silenea, p. 72, Stazzano, on Silene in/lata, 
A.Jani, p. 73, Genoa: id. 1. c. ii. j A. vitalhce, p. 225, Stazzano, on Clematis 
vitalba, A. cirsina, p. 226, Diano Marina, on Cirsium arvense, A. (?) mimosee, 
p. 227, Genoa, on Mimosa, A. arhuti, p. 228, Genoa, on Arbutus unedo, id. 1. c. 
iii. : spp. nn. 
