218 MODERN SYSTEM. 



they lay their eggs, two Imndred or more, below ground, the female 

 being excessively solicitous to preserve them from cold and accidents. 

 They are said to be attracted to gardens by horse-dung, and to be 

 expelled by the dung of hogs. They arc common in some parts of 

 Hampshire and Wiltshire. 



Stirps 2. — Feet not formed for digging : oviduct exserted : antenn<z 

 longer tlian the thorax. 



Genus 262. ACIIETA. Fahr., Leach. Gryllcs. Linn., Geoff., 

 Lair., Oliv., Lam. 

 Sp. 1. Ach. campestris. Body three times longer than broad, black, sliin- 



ing. 

 Gr\dlus campestris. Linn., Latr. Acheta campestris. Fahr., J^ach. 

 Inhabits the temperate parts of Europe ; is not very conmion in Bri- 

 tain. 

 The house cricket belongs to this genus. 



Fam. II. Gryllid.^. Leach. 

 Locustarij?;. Latreille, 



Mlytra and wings oblique: hinder feet formed for jumping: farsi four- 

 jointed : autennw setaceous : oviduct exserted. 



Genus 203. COXOCEPIIALUS. Thunh., Lf^ach. Locvst a. Geoff., 

 De Geer, Fair., Oliv., Lam., Latr. 

 Thorax deflexcd, convex, tnmcated: head acuminated: hinder feet twice 



the length of the body : antenna as long as the body. 

 Sp. 1. Con. viridissimus. Green: antenna^, vertex, dorsum of the thorax, 



and suture of the elytra fuscous ferrugineous. 

 Locusta viridissima. Fahr., Latr. Gryllus viridissimus. Linnc. 

 Inhabits Europe. In the autumn the perfect insect may be found in 

 great plenty in the marshes near London. 



Fam. III. LocuSTiD^. Leach' 

 AcRY'Dii. Latreille. 



Elytra and wings oblique: hinder feet formed for jumping: tarsi Vf'iih 

 three joints: antenna filiform or ensiform: oviduct not exserted. 



Stirps 1. — Hinder legs as long as the body : antenna: filiform : sciitellum 

 short. 



Genus 26 1. LOCUSTA. Leach. Gryllvs. Fahr., Panz., Linn. 

 Antenna filiform, or terminated in a club : hinder legs not, or scarcely, 

 longer than the body. 



Obs. — We have many indigenous species of this genus. 



Sp. 1. Loc. migratoria. Thorax somewhat carinated: mandibles blue. 

 This species, though not a native of this country, has been occa- 

 sionally taken in Britain ; in the year 17-18 it appeared ir feevcrai, 



