COLEOPTERA. 
287 
Pascoe, F. P. List of the Longicornia collected by the late 
Mr. P. Bouchard at Santa Marta. Ti’ans. Ent. Soc. London^ 
3rd series, vol. v. pp. 279-296, plate 20 : June 1866. 
Contains a list of 53 species, 25 of which are described as 
new. 
. Longicornia Malayana ; or, a descriptive Catalogue of 
the species of the three Longicorn families collected by 
Mr. A. B. Wallace in the Malay Archipelago. (Continued.) 
Trans. Ent. Soc. London, 3rd scries, vol. hi. pp. 225-336, 
])ls. 10-13 : Scptcmhcr 1866. 
. On the Longicornia of Australia, with a list of all the 
described species, &c. Journ. Linn. Soc. vol. ix. pp. 80^ 
142, pis. 3 & 4 : October 1866, and January 1867. 
This paper includes a catalogue of the known species of Aus- 
tralian Longicornia, with descriptions of numerous new species, 
The latter were all published in October 1866. 
. Notices of new or little-known genera and species of 
Coleoptera. Part v. Journal of Entomology, vol. ii. 
pp. 443-493, pis. 18 & 19 : June 1866. 
The majority of the genera and species here characterized 
belong to families of the great tribe Heteromera of Latreille. 
. List of described species of Australian Heteromera. 
Ibid. pp. 493-499 : June 1866. 
In this paper Pascoe furnishes a list of the known species of 
tlie families of Heteromerous Beetles found in Australia, many 
of them characterized by himself in the preceding paper *. The 
total number of species is 270, referred to 96 genera. 
. Catalogue of Longicorn Coleoptera, collected in the 
Island of Penang by James Lamb, Esq. P]^oc. Zool. Soc. 
1866, pp. 222-267 & 504-536, pis. 26-28 & 41-43. 
In this paper Pascoe gives a catalogue of 212 species of 
Longicorn Beetles collected in Penang, with synonymic observa- 
tions on many of them, and descriptions of numerous new 
species and genera. With regard to the multiplication of the 
latter by modern naturalists, the author makes some remarks 
intended to justify the practice. In the author^s opinion neither 
genus nor species has any actual existence in nature, these 
terms being used only to express categories of thought/^ 
hence they cannot be defined with absolute certainty. In this 
view genera and groups of higher systematic value can only be 
regarded as matters of convenience ; and the question at once 
arises, whether it is more convenient to the naturalist (consider- 
ing that it is admitted that none of these groups can be accu- 
rately defined) to have a moderate number of genera with some- 
* The Javan ChoUpus hrcticornis (Pasc.) is cited hy mistake in place of 
C. pwictipennis (Pasc.). 
