FORFICULAKIiE^ BLATTID;R. 
Ins. 213 
commences with brief historical notes ; after which is an alphabetical 
list of the genera, with annotations, including new generic divisions ; 
then follows the synonymic list of species, which appear to number about 
225, according to the author’s views. 
New genera a7id species : — 
Anechura, Scudder, 1. c. p. 289, for Forficula bipunctata, F. 
Carcinophora, p. 291, for Chelidura rohusta, Scudd. 
Chelisoches^ p. 295, for Lobophora, Serv., 1839, nec Curtis, 1825. 
Typhlolabia, p. 300, for Forficula (?) larva^ Philippi. 
Scudder, Bull. U. S. Geol. Surv. ii., describes 
Cylindrogaster nigra, p. 251, Para ( ? , ? apterous.) 
Labidura auditor^ p. 252, Natal. 
Chelisoches comprimens, ibid., Africa. 
Ancistrogaster arthritica^ p. 253, Brazil, gulosa, p. 259, Mexico. 
Forficula variana, p. 253, Liberia, vellicans, p. 254, Brazil, luteipes and 
variicornis, p. 255, Brazil, hirsuta, p. 256, Brazil, vara, p. 260, tolteca, 
p. 261, exilis, p. 262, Texas, aculcata, ibid.. Illinois and Michigan. 
Labia arcuata, p. 257, Brazil, rotund ata, p. 263, Mexico, brunnea, 
p. 264, Cuba, guttata, p. 265, Texas, burgessi, p. 266, Florida, melan- 
cholica, p. 267, Texas. 
Neolobopliora volsella, p. 257, Mexico. 
Thermastris chontalia, p. 258, Nicaragua. 
Spongophora forfex, p. 259, ? Tropical America. 
Forficula (Brachylabis) varicornis, F. Smith, Ann. N. H. (4) xvii. 
p. 450, Bodriguez. 
Labidura tertiaria, Scudder, Bull. U. S. Geol. Surv. i. p. 447, lithophila, 
id. op. cit. ii. p. 259, fossil, in tertiaries of Colorado. 
BLATTIDiE. 
Plateau, Felix. Note sur les phenomenes de la digestion chez la 
Blatte Americaine (Periplaneta americana, L.). Bull. Ac. Belg. xli. 
The author considers the digestive apparatus to be composed of (1) a 
buccal intestine, very large, divided successively into three portions, 
viz. : an oesophagus relatively short and narrow, an ample crop occupying 
a large portion of the abdomen, and a valvular apparatus (or gizzard) ; 
(2) a middle intestine of moderate length, having eight glandular coeca at 
its origin ; (3) a terminal intestine. The food accumulates in the crop, 
and undergoes the action of the salivary glands ; the feculent substances 
are transformed into glucose, and this first product of digestion is absorbed 
on the spot, and is not found afterwards ; the valvular apparatus serves 
only as a triturator; the middle intestine receives the juice secreted by 
the glandular coeca, which is ordinarily alkaline, l{ever acid, neutralising 
the acidity acquired by the food in the crop, transforming the albumin- 
oids into soluble bodies capable of assimilation.; the terminal intestine 
receives the residue of the food, and the urinary secretion of the Mal- 
pighian vessels. 
