BRITISH OllTHOPTERA. 197 



insect from the table of gcnoi-ca ; it is said to occur in fields, but 

 is probably not a native of this country. 



4. LocusTA, L., 1748. 



= ScHisTOCERA, Stol. ; AciuDiuM, aiict. 



Distinguished from Pachytijlus by its long narrow form, and 

 the comparatively short space between the eyes ; also by the 

 three transverse furrows on the pronotum. Fig. 9. 



1. L. pcregrina, Oliv., 1807. = rufescens, Thunb. ; flavi- 

 ventre, Burm. — Figured in Cuvier's ' Ecgne Animal,' pi. 86, fig. 1. 

 This magnificent species occurred in various parts of England 

 in October, 1869, but has not been recorded since ; it is a native 

 of Asia and Africa. 



5. Pachytylus, Fieb., 1852. 



I. Wings green tnigratorius. 



II. Wings yellowish brown - - - Jlavipes. 

 III. Wings red, with a dark band - - stridulus. 



1. P. migratorius, L., 1793. = migratorioides, Eeiclie. ; ? ciner- 

 ascens, Fab. — This fine species is figured in Donovan's * British 

 Insects,' viii. pi. 270, and in Cuvier's * Animal Kingdom ' 

 (Grifiith), xv. pi. 130, fig. 1; it occurs occasionally in this 

 country from August to October in fields, but is not a native. 

 P. cinerascetis is a variety with the pronotum of equal breadth 

 throughout. 



2. P. Jiavipes, Don. (Gmel.). — Easily distinguished from 

 P. migratorius by having a distinct yellow stripe on the elytra 

 and three longitudinal carinsB on the pronotum (P. migratorius 

 has only one). Occurs in marshes. 



3. P. stridulus, L., 1761. = ruhrijjenne, DeGeer; ^uligi- 

 nosum, Oliv. — I have not seen this species ; ? indigenous. 



6. (Edipoda, Burm., 1825. 



1. (E. carulescens, L., 1764. =: cyanojitera, Eamb.; sehetium, 

 Costa, var. /3 ; miniatus, Pallas ; germanicum, Latr. ; fasciatus 

 (athrens), Ger. ; obscurus, Petagne ; fabricii, Fieb., var. c. — Dis- 

 tinguished by its prominent eyes, blue wings (which have a dark 

 band near the hind margin), and the shape of the head. Said 

 to occur in fields. Fig. 10. 



7. Tetrix, Charp., 1841. 



= AcRYDiUM, Curtis. 

 These remarkable insects are easily known by the prothorax 

 projecting over the abdomen ; they are the smallest of our 

 Acrididse, and occur in fields, heaths, and sandy places. 



I. Prothorax extending considerably beyond apex of abdomen 1. suhulata. 

 11. Prothorax extending about as far as apex of abdomen - 2. hifunctata- 



1. T. suhulata, L., 1761. =pallescens, Zett., var. ; uiida- 

 latum, Sow. ; bipunctatum, Panz. ; bimaculatam, Herbst ; margi- 



