464 
ORTHO PTERA. 
Arytropteria, p. 198. Vertex narrowed, with shallow channel. Pro- 
notum with excessively prolonged process, the latter, from the base of 
the impressed marking, longer, or as long as, the anterior portion to- 
gether with the head. Elytra hood-shaped, retracted under the process. 
Cerci with small lateral tooth at the tip. Ovipositor acute, at the end 
slightly curved outward. Types, A. angulosa (Brun.), sp. n., p. 198, 
pi. iv. figs. 31-36, Zulu and Port Natal, and A. steindachneri^ sp. n., 1. c. 
pi. vi. figs. 98-102, California. 
Paradrymadusa (sub-g. n.) p. 199. Allied to Drymadusa. Elytra 
squamiform, free in the $ , abbreviated in the $ . Pronotum only 
slightly compressed, the process short, rounded. Tympanum of the ^ 
trapezoidal. Cerci curved one on thq other, with a lateral tooth near the 
apex. Sub-genital lamina with two short points. Ovipositor conspicu- 
ously curved downward. Type, P, sordida, sp. n., p. 206, pi. v. figs. 49- 
63, Caucasus. 
Sieiroxys [/8/iV-], p. 200. Allied to Decticus and Platycleis. Elytra 
abbreviated in the $ . Pronotum slightly compressed, the process slightly 
produced, anteriorly sub-parallel. Cerci short, with blunt flattened point 
and lateral tooth. Ovipositor sabre-shaped, curved upward, finely serrate. 
Type, Thammotrizon trilineatus, Thomas, pi. v. figs. 64-69. 
The folloAving are also figured, and briefly described, as types of exist- 
ing genera : — 
Gampsocleis ahbreviata (Brun.), sp. n., p. 201, pi. hi. figs. 1-7, Dal- 
matia. 
Rhacocleis buchichi, p. 201, pi. hi. figs. 20-24, Dalmatia. 
Thyreonotus corsicus, Serv. p. 203, pi. iv. figs. 25-33. 
Pterolepis brunneri, Krauss, p. 205, pi. iv. figs. 47-42. 
Drymadusa spectabilis, Stein, p. 206, pi. iv. figs. 43-48. 
Decticus albifrons^ E., 1. c. pi. v. figs. 64-58. 
Platycleis intermedia^ Sorv., p. 207, pi. v. figs. 69-63. 
Psorodonotus fieberi, Eriv., p. 208, pi. vi. figs. 70-75. 
Anabrus simplex^ Ilald., p. 209, pi. vi. figs. 76-86. 
Thamnotrizon cliabrieri^ Chp., apterus, F., and striolatus, Fieb.', pi. vi. 
figs. 87—96. 
STALj 'in part ii. of his ‘ Recensio Orthopterorum,’ enters at length 
into the arrangement and value of this group as defined by Burmeister, 
and considers it to be one of the best marked. He enlarges upon the 
difficulties presented by the absence of notes on special structural cha- 
racters in the works of previous authors, and in some genera (e. g., Xi- 
phidium) renounces as impossible any endeavours to disentangle the 
species from the materials before him. The family is divided into five 
sub-families — PhyllopJioridce, PseudopJiyllidce, Conocephalidm, Gryllacri- 
didee^ and Stenopelmatidai, the characters of which are detailed in a 
dichotomous form. The genera under each sub-family are worked out 
in the same dichotomous manner. For the proper definition of the new 
genera in a condensed form it would be necessary that a Recorder should 
have paid special attention to the group, and it is therefore proposed to 
