190 REPORT ON ZOOLOGY, MDCCCXLIII. 



Monographic d'uu genre de Muscides, nomme Ceratitis, par M. Guerin- 

 Meneville, (Rev. Zool. p. 194.) The author distinguishes 5 species : (1) 

 C. Catoirei (C. citriperda, M., Leay, Zool, Journ.) from the Mauritius ; (2) C. 

 cnpitata (Tryp. cap., Wied.), from Madeira ; (3) C. hispanica, Breme ; (4) 

 C. Bremei, n. s. from Senegal ; (5) C. ? dentipet, n. s. from New Holland. 

 The last is particularly distinguished by peculiar prominences on the 

 head of the $ which have nothing in common with those of the 

 other species, and it might, perhaps, form a distinct genus, for which the 

 author holds in readiness the name of Lenopliila. The fourth species is 

 unknown to me. With respect to the first three I refer to my published 

 opinion in the last Report p. 263, (255 of Transl.) 



The genus Milichia, Meig., has been submitted by Loew (Eiit. Zeit., p. 

 310, 322) to a rigorous examination, and he has added to it a new species, 

 found near Posen, M.forniosa. 



PUPIPAEA. Denny (Annals of Nat. Hist, xii, p. 314., pi. 17, f. 5) has 

 described a new species found upon Pteropus edulis : Lipoptena Pteropi. 



APHAUIPTERA. Id. (ib. p. 315, f. 6) has given a description and figure of 

 the Plea of the Echidna hist fix, from "Van Diemeu's Land : Pidex Echidna. 



A collection of all the hitherto observed species and established genera 

 of this family has been made by Gervais. (Hist. Nat. d. Ins. Apteres, iii, 

 p. 362.) 



HEMIPTERA. 



A new and very useful manual of this order is the ' Histoire Na- 

 turelle des Insectes Hemipteres,' par MM. Arnyot et Audinet-Serville, 

 Paris, 1843, forming part of the ' Suites a Buffon,' published by Roret. 

 The authors have set out with the fundamental proposition, " qu'un 

 genre n'est pas autre chose qu'une division methodique venaut imme- 

 diatement au-dessus du dernier degre de division, qui est Pespece, comme 

 1'espece est elle-meme immediatement au-dessus de la variete." In con- 

 formity with this view, where merely some subdivisions have been indicated 

 by their predecessors, the authors have erected these subdivisions into 

 genera, the number of which has consequently become very considerable. 

 Many of these genera are good and will remain, others will be again reduced 

 to the rank of mere subdivisions from which the authors have raised them, 

 by more profound systematists, to whose idea of a genus greater significance 

 attaches. On the score of utility, the authors' method is undoubtedly the more 

 convenient, since by the too frequent disjunctions, caused by repeated sub- 

 division, all connexion in the classification is destroyed. As this work will 

 not fail to be in the hands of those Entomologists who occupy themselves 

 with this order, a further introduction to its contents is superfluous. 



