APHIDIDjE. 
Ins. 289 
Brass, A. Das Ovarium, und die ersteu Entwicklungsstudien des Eies 
der viviparen Apliiden. Z. ges. Naturw. lv. pp. 339-375, pi. i. 
After describing the ovary, and the earlier processes of development 
of the ovum, the author gives a sketch of the observations of previous 
writers, and compares them with his own. 
Courchet, L. Etude sur les galles causees par des Aphidiens. Mem. 
Ac. Montp. x. pi). 1-102, pis. i.-vi. 
The author divides his work into two parts : part i. deals with the 
evolution, morphology, and structure of galls, and treats of galls in 
general, and those of the Terebinthiaceee , the black poplar, and the elm in 
particular ; part ii. treats of perfect insects. 
Macciiiatt, L. Aggiunta agli Afidi di Sardegna. Bull. Ent. Ital. xiv. 
pp. 243-249. 
. Specie di Afidi che virono nelle piante della Sardegna setten- 
trionale, con qu niche nozione sul polimorfismo di detti insetti. L. c. 
pp. 331-337. 
Includes a list of species. 
Monell, J. Notes on Aphididcs. Canad. Ent. xiv. pp. 13-16. 
Includes notes on several known species, descriptions of new ones, and 
a table of the N. American species of Callipterus , Koch. 
Osborn, H. Notes on Pemphigus tessellatus, Fitch. Canad. Ent. xiv. 
pp. 61-65. 
The earliest record of this insect is Chcrmcs alni , Kalm., nec Linn. 
Osborn rodescribos tlio insoct, and gives some account of its anatomy, 
especially remarking that above the channel leading to the gullet, formed 
by the epi- and hypo-pharynx, are eight light spots, with dark borders; 
analogous organs, probably organs of sense, occur in other Hemiptera 
and Hymenoptera. 
Witlaczil, E. Zur Anatomie der Aphiden. Zool. Anz. v. pp. 239-241. 
Relates to the sucking apparatus, intestinal canal, pseudovitellus, 
excretory tube, tracheal system, and brain. 
Balbiani replies to Lichtenstein’s views on alternation of generations 
in Aphides ; C. R. xiv. pp. 1299-1302. 
Experiment on destroying Aphides by submersion in water ; Laboul- 
bene, Bull. Soc. Ent. Fr. (6) ii. pp. cxxxiv. & cxxxv. 
Siphonophora rosce , var. jloridcs described; Ashmead, Canad. Ent. xiv. 
p. 88. 
Aphis lanigera , &c., destroyed by Scymnus arcuatus, Rossi ; Ann. Soc. 
L. Lyon (2) xxviii. pp. 131 & 132. A. mail noticed; Bethune, Rep. E. 
Soc. Ont. 1881, pp. 77-79, figs. 45 & 46. 
Schizoneura lanigera, Hausm. (American Blight), described and figured ; 
id. 1. c. pp. 74-76, figs. 42 & 43. 
Lachnus viminalis. Colouring matter ; Muller, P. Eastbourne Soc. 
Nov. 1881, and J. R. Micr. Soc. (2) ii. p. 39. 
Planchonia hederes , Lichtenstein, renamed by him valloti , because it 
1882. [voTj. xtx.] v> 19 
