20 Ins. 
INSECTA. 
that it is impossible to imagine that these Insects of divers habits, which 
they cannot change, had a common ancestor. The last four chapters 
give the results of a remarkable series of observations and experiments 
on the sex of the egg : having observed that the amount of food provided 
by certain Ilymenoptera for the offspring varied much, ho farther 
observed th’at the quantity had a relation to the sex of the perfect Insect 
produced from the larva that had consumed the food ; he also found 
that the quantity did not determine the sex, but that this is decided by 
the insect when laying the egg ; and he discovered that the female 
Hymenopteron lays either a $ or $ egg, according to her own choice ; 
he also found that the sex of the egg is not decided by its fecundation, 
or non-fecundation, from the receptaculum seminis, and he considers that 
the mode by which the Insect influences or selects the sex of the egg is 
quite unknown. [The work is discussed by Fol (201), Mauvezin (427), 
and Nicolas (487).] 
174. Fairmaire, L. Note sur les CoUopteres recueillis par M. Laligant 
£i Obock. Ann. Soc. Ent. Fr. (6) v, pp. 435-4G2. 
101 species are enumerated, 34 of them new, with 3 new genera. 
175. . Notes sur les CoUopteres recueillis par M. Raffray a Mada- 
gascar et descriptions des especes nouvelles. Op. cit. vi, pp. 31-96, 
pi. ii. 
176. . Descriptions de Coleopteres de Finterieur de la Chine. Op. 
cit. vi, pp. 303-356. 
Describes about 90 now spocios, representing a largo number of tho 
families of the order. European and Asiatic forms aro here found to- 
gether. 
177. . Diagnoses de CoUopteres nouveaux. Coldopteres de la Chine. 
Le Nat. viii, p, 223. 
•. [See also Baer.] 
178. Faust, J. Bemerkungen zu einigen europaischen Curculioniden- 
Gattungen. S. E. Z. xlvii, pp. 22-31. [Coleoptera.'] 
A discussion, in connection with Bedel’s Faune Col. Seine, as to the 
systematic positions of certain genera of Erirhinini , &c. 
179. . Beschreibung neuer Anchonidiuni Arten aus dem Caucasus. 
T. c. pp. 32 & 33. [ Coleoptera .] 
180. . Bemerkungen zur Gruppe der Brachyderiden uud Beschrei- 
bung einiger neuen Arten. T. c. pp. 33-38. [ Coleoptera .] 
Contains some important observations on the classification of the 
Brachyderides and Otiorhynchides. 
181. . Yerzeichniss auf einer Reise nach Kashgar gesammelter 
Curculioniden. T. c. pp. 129-157. [ Coleoptera .] 
A list of the species obtained by Stoliczka : many new species and 
some new genera. 
