414' MODERN CLASSIFICATION OF INSECTS. 



This arrangement has been adopted by MacLeay in the Hor(B 

 Entomologic(B, by whom the)' were named Blattina, Phasmina, Acri- 

 dina, Locustina and Gryllina ; Brullc, also, in his recent arrangement, 

 has adopted the same mode of arrangement, but separating Phasma 

 and Mantis, which had previously been most unnaturally united toge- 

 ther. Latreille, however, in his later works, divided the order primarily 

 into two sections, Cursoria and Saltatoria ; the latter corresponding 

 with the Linnaean Grylli, and the former containing Forficula, Blatta, 

 Mantis, and Phasma. 



The union of all the Saltatorial species into a separate section 

 appears a decided improvement ; but the group, thus constituted, 

 appears to be of no higher rank than either Blatta, Mantis, or Phasma ; 

 and, therefore, the former mode of arrangement, in which those types 

 were reduced to a rank equivalent only to the crickets or locusts 

 (and not to the entire Saltatorial group), was equally untenable. 

 Taking into consideration the peculiar characters and habits of the 

 different tribes of which the order is composed, I would suggest its 

 distribution into four groups, of equal rank; namely, 1. Cursoria, 

 legs formed for running — Blatta; 2, Raptoria, fore legs raptorial — 

 Mantis, 3. Ambulatoria, legs formed for walking — Phasma ; 4. 

 Saltatoria, legs formed for leaping — Gryllus Linn. Of these groups 

 the Cursoria are certainly most nearly allied to the Forficulida;, both 

 in their jjeneral structure and habits. 



The first section, Cursoria, comprises the single family BLATTiDiE 

 Steph., and corresponds with the Linnaean genus Blatta, and the 



* BiBLioGR. Refer, to the Blattid^. 

 Sclireher. Beytr. ziir Scliabent;. in Naturforscher, St. 15. 

 Serville, in Ann. Sc. Nat. t. xxii. 



Berendt. Elattse in Amber. Ann. Soc. Ent. France, 1836. 

 Thunherg. Blattarum Nov. Sp. in Swcd. Trans, for 1810. — Ditto, in Mem. Acad. 



St. Petersb. t. x. 1826. —Ditto, Dissert. Entom. Upsal, 1784. 

 Blanchard, Ann. Soc. Ent. France, 18.37 (Mon. Phoraspis). 

 Fraula, in Mem. Acad. Scienc. Bruxell. torn ili. 1780. 

 Jiambur. Faune de 1' Andalousie, No. 2. 

 Charpentier. Hora; Entomologicse. 



