462 
ORTHOPTERA. 
MyrmecopMUens . 
Cycloptilum americanum, sp. n., p. 426, pi. viii. figs. 41 & 42, Cuba. 
CEcanthiens. 
Divided into two legions, CEcanthites and Eneopth'itea. Parcccanthus 
mexicanus, Sauss., pi. viii. figs. 33-36, and Apithis quadrata, Scudd., pi. 
vii. figs. 16 & 17, are figured. Gryllus (^Eneoptera) lividus^ DeHaan, nec 
Burm., is re-named Metrypa haani, p. 615. 
The following new genera and species are described in the Ecanthites : — 
Diplacusta, p. 432. Approaches Prosthacusta in' the form of the 
head, but differs by the front somewhat more prolonged between the 
antennae, by the anterior tibiae being provided with a complete double 
drum, by the nouration of the lateral area of the elytra, &c. Includes 
Lcrneca varipcs^ Walker, and D. fuscipcfmia, p. 433, Brazil, and inalala, 
p. 436, Surinam. 
Prosthacusta^ p. 436. Differs from Gryllormorpha by its more com- 
pressed body, the $ provided with elytra, and with a more or less developed 
drum, &c. Type, P. mcxicana^ p. 437, pi. vii. fig; 18, Mexico. 
Dyscophus, p. 438. Differs from the preceding in the front being 
deflexed, elytra of $ rudimentary; anterior tibiae pierced, but their 
drum often obsolete, &c. Type, P. saltator, p. 438, Brazil and Peru. 
Heterogryllas, p. 439. Distinguished especially by the form of its 
frontal snout, and the disposition of the ocelli, the anterior one being 
placed at the extremity of the snout. Type, H. ocellaris, p. 440, Brazil. 
Amphiacusta^ p. 444. Resembling Phalangopsis^ but always distin- 
guished by the posterior ocelli being as large as the anterior, by the 
less narrow frontal snout, by the anterior tibiae being pierced through 
and through, &c. Includes Phalangopsis annulipes^ Serv. ('pi. viii. fig. 
40), and azteca, Sauss. (pi. viii. figs, 39 & 39a), and A. graridis, p. 447, 
Cuba and Guadeloupe, smd phalangium, p- 450, Central America. 
Cophus^ p. 454. Differs from Phalangopsis by a less elongate and 
smaller head, by the tibiae which are canaliculate beneath, as well as the 
first joint of the posterior tarsi, which boars also two rows of spinules. 
Typo, Cophus thoracicus, p. 455, Cuba. 
Paragryllus rex, p. 442, Brazil. 
Phalangopsis gaudichaudi, p. 463, Brazil. 
Ecanthus argentinus, p. 460, La Plata, calif ornicus, p. 462, California. 
The following new genera and species are described in the Ene- 
opterites : — 
Ectrotrypa, p. 466. Elytri^ of ^ with a drum, which is complete, and 
with well developed oblique veins ; head elongate, the snout divided in 
front, pronotum much elongated, not angulated in front. Type, E. 
olmeca, p. 467, Mexico. 
Diatrypa, p. 476. Differs from Orocharis by the form of the oviscape 
and by the ely tral drum of the $ , which offers plain and oblique veins ; 
from Paroecanthus by the strongly developed drum of the anterior tibice, 
the $ by the form of the oviscape, the $ by the oblique veins of the 
ely tral drum, &c. For D. tolteca, p. 478, pi. vii. fig. 19, Mexico, 
tuherculata, p. 479, Buenos Ayres, ornata, p. 480, Surinam ? 
