10 
Orthoptera. 
Two wings folded longitudinally under soft and almost 
membranaceous elytra. 
Mouth armed with maxillae (mandibulae) and valvulae 
(maxillae). 
Hemiptera. 
Two wings crossed under soft and semi-membranaceous 
elytra. 
Mouth a sharp rostrum bent under the breast. 
The antennae vary so much in the different families into 
w'hich Linnaeus has divided Gryllus, that it is not easy to 
construct a good generic character which will well include 
them all ; we therefore propose adopting the Fabrician ge- 
nera, yet taking our characters from conspicuous parts. 
We cannot here help expressing our opinion, that the 
name Locusta ought to have been given to that genus which 
contains the insect which is called by way of eminence the 
Locust, ( Gryllus migratorius,) and Gryllus to that which 
contains the cricket ( Acheta domestica). The names of the 
antients ought not to be changed but for very weighty 
reasons. 
Body brown. Antennas longer than the body, pale. 
Mouth pale. Thorax suhearinate behind, and rounded. 
The middle deflected part of its posterior margin whitish. 
Legs cinereous, spotted with brown, greenish underneath. 
Elytra cinereous, spotted with brown. Oviduct of the 
female rather longer than the abdomen, falciform, brown, 
with a pale spot at the base. The apex on the under valve 
is serrulate on the lower side. The abdomen of the male 
is paler, and spotted with black ; the anus has four styles 
or appendages. Its legs are not greenish underneath. 
This rare insect, which has never been figured that we 
know of) is in the cabinet of the Rev. W. Kirby, (who re- 
ceived it from the ingenious author of Animal Biography,) 
and in Mr. Sowerby’s cabinet. 
Length of the female, including the oviduct, 1 inch. 
Length of the male 11 lines. 
