248 Bibliogrxiphical Notices. 



ever have been separated therefrom as a distinct order. It seems to 

 us, however, that the authors have to a certain extent been in error 

 in placing the BulichiidcB among the aberrant Amphipoda, their 

 true alUance being evidently to the typical section, with which they 

 are described as agreeing in every respect, except in having the last 

 two segments of the "pereion" fused into one, and the last segment 

 of the " pleon " absent. In all other characters, such as especially the 

 full development of the tail, the absence of rudimentary feet, and the 

 separation of the coxse from the segments on which they stand, the 

 Dulichiidce agree with the higher Amphipoda, and differ in the same 

 proportion from the aberrant forms, whether we take the spectral 

 Caprellw or the louse-like Cyami as typical of the second group. 

 This, however, is an objection easily got over ; and we can only ex- 

 press a hope that the renewed publication of the book may now pro- 

 ceed regularly, and that it will find as many purchasers as its careful 

 elaboration and the beauty of its printing and illustration certainly 

 entitle its publisher to expect. 



A Catalogue of Phytophaga (^Coleoptera, Pseudotetramera). By 

 the Rev. Hamlet Clark. Part I. With an Appendix, con- 

 taining Descriptions of new Species, by H. W. Bates and the 

 Rev. Hamlet Clark. 8vo. London : Williams and Norgate, 

 1866. 



During the eighteen years that have elapsed since the completion 

 of Lacordaire's classical Monograph of the Phytophaga, entomolo- 

 gists have been most industrious in describing new genera and spe- 

 cies of this most attractive group of beetles. The result of this 

 industry is the accumulation of a vast mass of more or less scattered 

 descriptions of newly discovered forms, which renders it exceedingly 

 difficult for an entomologist not making a special study of the group 

 to arrive at anything like a clear notion of the number of species and 

 genera already known. The Rev. Hamlet Clark (the author of the 

 Catalogue now before us) and Mr. J. S. Baly may be noted as among 

 the most active cultivators of this particular department of entomo- 

 logy, the latter especially exhibiting a power of production which 

 has already rendered his publications very voluminous. It is a ques- 

 tion, indeed, how far he may be regarded as doing good service to 

 science by the publication of such an infinity of detached notices ; 

 but it is quite clear that, until he begins to devote his energies to 

 some other group of insects, that monographic revision of the Phyto- 

 phaga which has already become almost an absolute necessity, and 

 which will undoubtedly bring about the suppression of a host of 

 modern so-called genera, had better be postponed. 



In the meanwhile entomologists will be thankful to the Rev. Hamlet 

 Clark for the catalogue with which he proposes to furnish them, and 

 of which the first part, including the four Crioceride groups, Sagridae, 

 Donacidse, Crioceridae, and Megalopidse, is now before us. In this 

 catalogue we find the generic and specific synonymy of the insects 

 belonging to these groups concisely but clearly set forth, with full 



