8 Ins. 
IN SECT A. 
JoussET DE Bellesme, toM. cU. pp. 535 & 536, referring to this 
Memoir, records his own observations, communicated to the Congress of 
Sciences, but not then published. Only the Diptera and Hymenoptera 
emit two sounds, one grave, the other acute and usually an octave higher ; 
this is the essential of buzzing. The grave sound is produced by the 
wing, disappearing when that is cut off. The acute is not produced by 
the rush of air through the stigmata or by the vibration of the valvules 
round them, but by the vibration of the thoracic pieces to which the 
flight muscles are attached ; and it is only in the Diptwa and Hymeno- 
ptera that the displacement can occur on a sufficiently large surface to 
produce a perceptible noise. 
Reibek, F. Des Regions Eiitomologiques de I’Alsace et de la Chaine 
des Vosges. Bull. Soc. Colm. xviii. & xix. [1877-78], p. 63 et seq. 
The author divides Alsace into seven physical regions, of which he 
enumerates the special Insect-fauna. Three are in the plain country, and 
three in the mountains, separated by the Vosges sandstone district. 
. Promenade Entomologique a Tile du Rhin, pres de Strasbourg. 
Tom. cit. p. 81 seq. 
These papers are also published separately, pp. 35. Cf. Nouv. et faits, 
2, No. 12, p. 46. 
Rondani, Camillo. Repertorio degli Insetti Parassiti e delle loro 
Vittime. Supplomento alia socouda parte : Vittiine. Bull. Ent. 
Ital. X. pp. 9-33 [Lepidoptera), 91-112 (Coleoptera and Ilymenoptera), 
161-178 {Dip ter llemiptera^ and A car idea). 
This supplement to the insects attacked apparently concludes the work, 
commenced in 1871. 
Schindler, E. Beitrage zur Kenntniss der Malpighi’schen Gefasse der 
Insecten. Z. wiss. Zool. xxx. pp. 587-660, pis. xxxviii.-xl., woodcut. 
A purely histological discussion of the Malpighian vessels in Insects, 
defined in a general way (including Myriopoda and Arachnida) as supple- 
mentary glands of the intestinal canal, always situated in the equivalent 
to the rectum, though with different degrees of distance from the meatus. 
Three special constituents of this general structure are noted, (1) a 
fasciated, serous outer coating, enveloped in the peritoneum, and contain- 
ing a gland-kernel ; (2) a usually very soft homogeneous Tunica propria ; 
and (3) a single layer of frequently very large excretion-cells (gland 
epithelium), forming a more or less wide central canal, next to the over- 
lying stratum of the Tunica propria. The last is not the invariable 
structure, as frequently an accessory inner-lining, perforated by small 
pore-channels, is found. The author enters at some length upon the 
history of thbse vessels and the different theories as to their origin and 
functions ; and then describes their formation in the different Orders, 
coming to the decided conclusion that they are special urinary-organs. 
H. SiMKOTii, Z. ges. Naturw. (3) iii. pp. 826-831, reviews Schindler’s 
paper, comparing his own descriptive account of the intestinal canal and 
appendages in the larva of Osmoderma eremita^ tom. cit. pp. 493-518, 
pis. xvi.-xviii., and Graber’s on Chalcopliaga mariana (Graz; 1874). 
