REVIEWS. 
59 
analysis of this group there is a divergence between the two methods, as 
Erichson’s Melolonthida;, along with the Piiyllophaga Chaenochela B., 
embrace the group Farinosa of the Ph. Systellochela B. ; the remain¬ 
ing group, Met allied, nearly corresponding to the Rutelidae of Erichson. 
Of the second great section, Stegopyga B. (answering to the Laparosticti 
E., after the’subtraction of the Glaphyridce ), the Pectinicornia B., form a 
definite group with Erichson likewise, as with nearly all authors. The 
Coprophaga B. correspond to the Coprides E., the Stercoricolai B. to 
the Aphodiidaj E. ; while the Arenicolas B. comprehend the remaining 
four families of Erichson, which, however, by him, are not placed in such 
continuous succession as to justify our considering the coincidence as a 
complete systematic correspondence. 
With respect to the constitution and connection of the minor groups, 
the differences between the two are naturally more numerous, and the want 
of uniformity, in the gradation apparently, palpably in the nomenclature of 
the subdivisions of Burmeister, arising, probably, from the length of time 
that has elapsed, and the accumulation of materials during the progress of 
his work, renders a closer, comparison of the differing arrangements some¬ 
what less facile, or less interesting, than it might otherwise have been 
deemed. We may note that the Liparetridce , of whose antennae the pecu¬ 
liar structure is noticed in a brief extract below, are not advanced by 
Erichson to the distinct rank which they assume in Burmeister’s arrange¬ 
ment, and which that peculiarity may seem to corroborate, but are treated 
as a portion of the Melolonthidje. 
In addition to the full and particular characteristic placed at the com¬ 
mencement, with the history of the progressive classifications of the 
family, Burmeister has given two supplementary essays, anatomical and 
physiological; the first regarding the organs of stridulation of the 
Xylophila, and their weight in a systematic point of view ; the other a 
collection of data, among the most important and curious which we possess, 
concerning the structure and inferred function of the antennae, organs the 
special development of which is so eminently characteristic of the Lamel- 
licornia. The main points, in a brief generalization, seem to be these. In 
the Phaneropyga, in general, the reciprocally contiguous faces of the joints 
of the capitulum are beset with minute deeply excavated pores, filled up by 
glassy papillae of various forms. The horny epidermis between the pores 
is never clothed with hairs, but presents only a fine cellular sculpture. The 
most common form of the papillae approaches that of a young fungus 
before the pileus is expanded. There is often a central impression at the 
base as well as apex of the papilla, contracting the axis ; but never to the 
