THE GENERAL SUBJECT. 
Ins . 5 
terminal intestine is probable, but not yet proved. (10) Insects have 
neither liver nor any gall-like excretion. 
Fritscii, A. Fossile Arthropoden aus der Steinkohlen- und Kreide- 
formation Bohmens. Beitr. Pal. Osterr.-Ung. ii. pp. 1-7, pis. i. 
& ii. 
Relates to the following new species : — Palingenia feistmanteli , Sil- 
phites priscus , Otiorhynchites C07istans, Brachinites truncatus, Tinea 
aralice , Ncmatus cretaceus, and Phryganea micacea. 
Girard, M. Traits 61ementaire d’Entomologie, iii. (1). Hymenopteres 
terebrants et Macro-Lepidopteres. Paris: 1881, 8vo, pp. 640, and 
atlas of 23 pis. 
Glaser, L. Die innere Yerwandschaft der Pflanzengruppen wird 
durch die Insecten-Ernahrung kundgethan. Zool. Gart. xxii. pp. 
340-345. 
Most insects will eat plants which are nearly related to their natural 
food, though dissimilar in appearance. Thus several of the large Ailan- 
thus or ifo'cmzts-feediug Saturniidcv will eat willow. 
Godman, F. Ducane, & Salvin, 0. Biologia Centrali-Americana ; or 
Contributions to the Knowledge of the Fauna and Flora of Mexico 
and Central America. Zoology, pts. xv.-xx. 
The portion published in 1882 includes the following sections relating 
to Entomology : — 
Lepidoptera Rhopalocera, by F. D. Godman & 0. Salvin, pp. 169-224, 
pis. xix.-xxiii. 
Coleoptera, i. (1), by H. W. Bates, pp. 41-152, pis. iii.-v. 
Coleoptera , i. (2), by D. Sharp, pp. 1-144, pis. i.-iv. 
Coleoptera , iii. (1), by C. O. Waterhouse, pp. 1-32, pis. i & ii. 
Coleoptera, iii. (2), by H. S. Gorham, pp. 113-168, pis. vii.-ix. 
Coleoptera , vi. (1), by M. Jacoby, pp. 145-224, pis. viii.-xi. 
Rliyncliota Ueteroptera , by W. L. Distant, pp. 169-224, pis. xvi.-xix. 
Graber, Y. Die chordotonalen Sinnesorgane und das Gehor der 
Insecten. I. Morphologischer Tlieil. Arch. mikr. Anat. xx. pp. 
506-640, pis. xxx.-xxxv., and 4 woodcuts; ii. Physiologisclier Theil, 
op. cit. xxi. pp. 65-145, woodcuts. 
It is impossible to do more than indicate the principal subdivisions of 
this paper. They are as follows : — Introductory remarks ; structure of 
the chordotonal organs ; structure of the scolopophoree (or tube-like 
terminations of the chordotonal nerve) ; structure of the scolopophorous 
system ; distribution of the chordotonal organs ; genetic relationship 
between the various constituents of the chordotonal organs ; cases of 
homology of these organs, and of their homotopic convergence ; biblio- 
graphy. About half 'the figures are devoted to larval organs, and the rest 
to the chordotonal organs of the halteres and wings of perfect insects. 
The second part of the paper treats of the hearing of insects, their sensi- 
tiveness to sound, and the functions and mechanism of the chordotonal 
organs, which the writer declares to be indisputably organs of hearing. 
