218 MODEKN SYSTLM. 



tlicy lay their eggs, two hundred or more, helow 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 are common in some parts of 

 Hampshire and Wiltshire. 



Stirps 2. — Feet not formed for digging : oviduct exserted : antenna: 

 longer than the thorax. 



Genus 2(j'2. ACIiETA. Fahr., Lcm-fi. Gryllus. Linn., Geoff., 



Lulr.^ Oliv., Tjum. 



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

 ing. 



Grylliis campestris. Linn., Latr. Acheta campestris. Fabr., Leach. 



Inhabits the temperate parts of Eurojie; is not very common in Bri- 

 tain. 

 'J'he house cricket belongs to this genus. 



Fam. II. GRYLMt),!:. Leach. 



LocusTArvT.^. Latrcille. 



FJiitrn and wings oblique: hinder feet formed for jumping: tarsi four- 

 jniuted : autemuc setaceous: oviduct exserted. 



Genus 2G3. CONOCEPIIALUS. Thunb., Leach. Locusta. Gaff, 

 De Gee?; Fabr., Oliv., Lam., Latr. 

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



the length of the body : antennae 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. Fabr., Latr. Gryllus viridissimus. Linne. 

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

 great plenty in the marshes near London. 



Fam. III. LocusTiD^. Leach. 



AcRYDii. Latreille. 



Eli/trn and icings oblique: hinder feet formed for jumping: tarsi v,\th 

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



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

 short. 



Genus 264. LOCUSTA. Leach. Gryllus. Fabr., Pane, 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_l. Loc. migratoria. Thorax somewhat carinated t mandibles blue. 

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

 sionally taken in Britain ; in the year 1748 it appeared in several 



