462 CLASS VIII. 
c) ach sex winged. 
Corydia Szrv., Burm. Elytra horny, with veins indistinct (add 
Phoraspis Srrv., Burm.) 
Sp. Blatta Petiveriana Fasr., Cassida Petiveriana L., Stouu, Blatt. Tab. 
v. d. figs. 21, 22, Blatta heteroclita Pauuas, Spic. Zool, rx. Tab. 1, fig. 5, 
&e. 
Sub-genus: Slatta nob. FElytra coriaceous, with veins eminent ; 
posterior wings shorter, not reflected at apex. 
Note—Here belong several sub-genera of Burmeister and 
SerRVILLE; Zhyrsocera Burm. (Pseudomops Sxrv.), Ischnoptera 
Burmu., Vyctibora Bur. (species of Blatta Srrv.), Periplaneta 
(Kakerlac Larr., Srerv.), Hpilampra, Panchlora, Naupheta, Pros- 
cratea, Zetobora Buro., Hormetica Burm. (Brachycola Sxrv.), 
Panesthia Serxv., Burm., Blabera SEry., Burm, (and Monachoda 
Burm.) 
Sp. Blatta orientalis L., Periplaneta orientalis BurM., De GEER, Jns, It. 
Tab. 25, fig. 1; Panzur, Deutschl. Ins. Heft 96, Tab. 12; gemeene kaker- 
lak, gemeine Pfisterschabe, Blatte des cuisines ; Blatta laponica L., PANZER, 
ib. Tab. 13, &c. 
The Kakerlacs are nocturnal. They are great devourers, and gnaw 
even leather, shoes, &. The name Blatta (from B\drrew, to injure) occurs 
already amongst the ancients ; yet probably it signified other insects. The 
female lays her eggs heaped into separate little masses distributed in 
cells; see GazE, Naturforscher, XVII. s. 183—189, Tab. Iv. figs. 16—19. 
RaTHKE has communicated his observations on the development in the egg 
in Blatta germanica in Meckel’s Archiv f. Anat. u. Physiol. VI. 1832. s. 371 
—378. Tab. Iv. 
Anaplecta Burm. Elytra coriaceous, with veins eminent. Pos- 
terior wings elongate, reflected at the apex. 
Species small, American. 
Family XLII. Forficularie. Tarsi with three joints. Elytra 
subcrustaceous, not reticulate, abbreviate, truncated, incumbent on 
back, placed in contact by a straight suture. Posterior wings mem- 
branous, partly folded in longitudinal rays, partly transversely, 
covered by elytra. 
The insects of this family make the transition from the Orthoptera 
to the Coleoptera. Lrxnxus counted them with these last, as did 
also Straus amongst more modern writers. Leacu and Kirpy 
form a distinct order of them, under the name of Dermaptera 
(Transact. of the Linn. Soc., Vol. x1. 1815, p. 87); this name, 
