234 THE ENTOMOLOGIST. 



two segments. Pic (21) discusses the varieties of the asparagus 

 beetle. 



Dupuy states that Smerinthus tilioi is double-brooded in some 

 parts of France (6). 



Sparre Schneider has a lengthy list of Norwegian Lepidoptera 

 (27), with a full discussion. 



Federley gives a resume of the temperature experiments on 

 Lepidoptera of Weissmann, Merrifield, Standfuss, and others (8). 

 Lampa discusses the metamorphoses and habits of Argyresthia 

 conjugella, which, in Sweden as in Britain, feeds on rowan berries 

 {Pi/rus aucuparia). He also deals with Caiyocapsa povionella, 

 and the sawfiy, Hoplocampa testudinca, on apple, though the two 

 last are not indicated in the title. The paper is illustrated by a 

 coloured plate (16). Oberthiir has brief notes on certain varieties 

 of Chrysophanus phlceas, Abraxas grossulariata, &c. (20). 



Picard (22) states that the males of those dragonflies which 

 are different in coloration from their females are not so at their 

 emergence from the nymph or for some days after ; this seems 

 to be due to the fact that spermatogenesis is not finished, as in 

 most other insects, at the instant of emergence, but is delayed 

 for some days 



Phisalix demonstrates the presence of venom in the eggs of 

 bees, in the proportion of about the one hundred and fiftieth part 

 of the weight of the egg. A young sparrow died two hours after 

 inoculation from an injection of an emulsion resulting from the 

 preparation of nine hundred and twenty- six bees' eggs (19). 



Ferton continues his notes on the habits of Hymenoptera, 

 dealing with Osmia, Tachysphex, Gorytes, Pompilus, CJirysis, &c. 

 The plates principally show the insects attacked and the manner 

 of attachment of the egg (9). 



E. du Buysson has monographed Nectarina — a genus of 

 social wasps inhabiting America only, not neglecting to sum- 

 marize (in three and a half pages) their biology. Four of the 

 six plates figure nests of various species (5). 



Lesne has made notes on the habits of a Trypetid and of an 

 Agromyzid attacking asparagus (14). 



Bau and Brues have monographed the genera of certain 

 Diptera (1 and 2) ; in the CEstrinse twenty-one, and in the Phoridae 

 twenty-three, genera are recognized. 



All Theobald's subfamilies of Culicidae are held by Dyar and 

 Knab to be untenable, these authors finding only two, Culicinre 

 and Sabethinas. The classification based on palpi is ruled out, 

 the differences being of a secondary sexual nature, and some- 

 times variable within the limits of a single species. One new 

 character is used, i. e., a tibial comb, which is supposed to act 

 as a cleansing organ for the body parts or wings (7). 



Perkins (30) continues his researches on parasites of leaf- 

 hoppers, summarizing his observations. 



