142 



M. L. Dufour, in a note (Ann. Sci. Nat. xiv. 179), adopts the above views of M. 

 Perris, but extends tbem by regarding the sense of smell merely as a modification of 

 that of touch, and agreeing with Goureau and Newport in thinking that the antennae 

 are the seat of hearing as well as of smelling, the air being the vehicle through which 

 the impressions of both senses are conveyed. 



Professor Owen's remarkable views concerning the Metamorphosis, Metagenesis, 

 and Parthenogenesis of Plants and Animals (by which the extraordinary anomalies in 

 the generation of the Aphidae are explained), have been communicated in detail in 

 the ' Annals of Natural History,' viii. p. 59, as well as in a distinct work. 



A memoir by M: F. Dujardin, on the Microscopical Texture and Properties of 

 Wax, has been published in the • Annales des Sciences Naturelles,' 3rd ser. xii. p. 250, 

 in which the writer considers that the white secretion with which the Dorthesiae, Cocci- 

 da?, Aleyrodes, and other Homoptera, are invested, and also the powdery matter on the 

 elytra of the Notoneciidae and Gerridae, as well as on the abdomen of the males of se- 

 veral species of dragon-flies, are all modifications of the same material. 



A memoir by Bohemann on Parasitism appears in the ' Proceedings of the Royal 

 Academy of Sweden ' for 1850 ; in which appear notices of a Typhlocyba attacked by 

 a Pteromalus, Forficula by a dipterous insect (found in the pupa state), OEdipoda cy- 

 anoptera by Conops vittata, and Oryctes nasicornis by Sarcophaga striata. 



Dr. Philippi has published (Ann. Sci. Nat. 3rd ser. xv.) a memoir on the Parasit- 

 ism of a Dipterous and Hymenopterous Insect, which he obtained from the closed 

 nest of Rhynchites Betuleti, the eggs of which were iufested with a dipterous larva, 

 within the body of which was developed another parasite, belonging to the family Pte- 

 romalidae. As the parent of the latter parasite is considered to have had no means of 

 depositing her eggs in the dipterous parasite, the latter is regarded as one of the nurses 

 of Steenstrupp's system of alternation of generations, sometimes producing a dipter- 

 ous and sometimes a hymenopterous parasite ! ! ! 



M. Alex. Lefebvre has published some remarks on the similarity of colour exist- 

 ing between the soil or sand in Egypt, and the insects found thereupon, (Ann. Soc. 

 Ent. Fr. ix. p. xxv.) 



Likewise, a notice of a caterpillar mentioned by Levaillant in his ' Travels among 

 the Namaquois,' which is venomous when it feeds upon venomous plants, and suggest- 

 ing the inquiry whether the larva of Deilephila Euphorbiae possesses the mordant ac- 

 tion of the plant it feeds upon. 



A remarkable memoir by Dr. J. Davy, F.R.S., on the Effects of various Chemical 

 Agents on Insects, appears in our Transactions (p. 195). 



A translation of M. Schiodte's ' Specimen Faunae Subterraneae,' made by Dr. Wal- 

 lich, has also appeared in our Transactions, (Vol. i. No. 3, p. 134). 



An article by Mr. Newman, on the Use of the Word Hermaphrodite, appears in 

 the ' Zoologist,' cxl. The writer makes no allusion to the comprehensive classifications 

 proposed by Geoffroy St. Hilaire, Lacordaire, or Agassiz. 



A gynandromorphous specimen of Formica sanguinea is described by Tischbein, 

 in the ' Stettin Zeitung ' for October. 



M. Wesmael has described two remarkable monstrosities occurring in the genus 

 Ichneumon, in both of which the front part of the body was of the male, and the ab- 

 dominal portion of the female sex. Also a monstrous Melolontha vulgaris, having one 

 of the antennae tripartite. 



