RHYNCHOTA. 
417 
A. fragarice (Walk.), pi. 10. fig. 4; A. vaporariorum (Westw.) j A. pliillyrea 
(Hal.), pi. 10. fig. 6 j A. immaculata (Ileeger) ; A. duhia (Heeg.) ; A.jelinekii 
(Frauenf.), pi. 9. fig. 2 ; A, aceris (Geoff.), pi. 10. fig. 1. He cites the descrip- 
tions of the following species with which he is unacquainted : — A. ahutilmea 
(Hald.) ,* A. comi (Hald.) ; A. cocois (Curt.) ; A. plmlamoides (Blanch.) ; A. 
tmo’oidcs (V^QJioh,) ] and (Schrank). Aleurodcs eiiphorhice (F. 
Low) is not mentioned by the author. Coccus latanice (Boisd.) is refeiTed 
to as a species of doubtful position ; Signoret raises it to the rank of a genus 
under the name of Boisduvalia. 
Alcurodcs. Signoret describes the following new species of this genus : — A. 
ruhif I, c. p. 382, pi. 9. fig. 4, on the bramble ; A. capreoi^ 1. c. p. .384, on Saltx 
caprea ; A, qucrcm, ibid., pi. 10. fig. 5, on the lower surface of leaves of Quercus 
pedunctdata, France, England; A. avellmux, 1. c. p. 385 ; A.fraxini, 1. c. p. 386 ; 
A. bergii, 1. c. p. 395, on the sugar-cane, Mauritius. 
Alcyrodes asarumis, sp. n., Shimer, Trans. Amer. Ent. Soc. i. p. 281, 
Illinois. 
COCCIDA?. 
Signoret publishes (Ann. Soc. Ent. Fr. 4® ser. viii. pp. DOS- 
SES and 829-87G) a memoir upon tlie insects of this family, 
with a list of the described species. The first portion is entirely 
devoted to a discussion of the literature of the family ; in the 
second we have [I. c. pp. 830-840) a detailed account of the 
structure and mode of life of these insects, in illustration of 
which several species are figured with details on plate 1 1 . The 
Catalogue is arranged in the alphabetical order of the specific 
names, with cross references for those which are regarded by 
the author as synonyms, and the indications of the genera to 
which they belong. This Catalogue appears to be the result of 
a most careful investigation, and will prove of great service in 
the investigation of this difficult group. A table of the cha- 
racters of the genera would have added greatly to its usefulness. 
Boisduval (Ent. Hortic. pp. 300-358) publishes a long ac- 
count, illustrated with numerous figures, of the principal forms 
of this family which infest cultivated plants and trees. Several 
species are imperfectly described as new, and others indicated 
without characters. T4ie latter are Chermes kennedya (p. 326) 
and C. angrceci (p. 337). 
Guerin-Meneville notices (Rev. et Mag. de Zool. 1868, pp. 123-127) 
the insects which infest the sugar-canes in the Mauritius and Reunion, and 
expresses his opinion th£t parasitic insects are to be regarded rather as con-* 
comitants than as the cause of a diseased state of the plants. The insects 
confounded under the name of “ Pou a poche blanche ” are said by Guerin 
to be Coccus sacchari (Gu^r.), G aster alphes iccryi (Sign.), Lecanimn guerinii 
(Sign.), and Alcurodcs bergii (Sign.). 
Asqndiotus linearis. Shimer (Trans. Amer. Ent. Soc. i. pp. 283-285) de- 
scribes the natural history of the female of this species, for which he adopts 
Gmelin’s name of conchiformis. He indicates the occurrence of a species of 
Acarus (?) which feeds upon the eggs of the insect. Shinier notices in the 
