10 



Orthoptera. 

 Two wings folded longitudinally under soft and almost 

 membranaceous elytra. 



Mouth armed with maxillae (mandibulse) 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 

 which Linnaeus has divided Grylhis, 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 ouo-ht to have been piven 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 {Achcta domestica) . The names of the 

 anticnts ought not to be changed but for very weighty 

 reasons. 



Body brown. Antennse longer than the body, pale. 

 Mouth pale. Thorax subcarinate 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. 



