INSECTA. 453 



the year 1748 such a sort of all-destroying locusts spread itself over the 

 west of Europe, to the Netherlands, nay even to England. That they are 

 able to cross the sea, is placed beyond doubt by many accounts, according 

 to which people on ship-board, many miles from land, observed the swarms. 

 Some districts of the South of France are frequently damaged for several 

 years in succession by different species of grasshoppers, for the collection 

 of which large sums of money are sometimes bestowed. In 1824 at 

 Saintes- Maries, in the neighbourhood of Marseilles, 1518 corn-sacks were 

 filled with grasshoppers, and at Aries 165 sacks; the expense amounted to 

 5542 fr. ; in 1833, in the first-mentioned place, 3808 kilogrammes of eggs 

 of these creatures were collected; the number of eggs that make up a 

 kilogramme may be computed at about 80,000. (See Ann. de la Soc. 

 Entom. de France, n. 1833, PP- 4^6 489; these observations refer, how- 

 ever, to other species than Gryllus migratorius.) Different large species are 

 eaten by people of the East, as, for instance, Gryllus cristatus L., RCESEL, 

 1. 1. Tab. v. Already in Pliny examples are met with of locust-eating 

 nations (Hist. not. Lib. vi. c. 30 in fine, Lib.xi. c. 29 in fine), not to speak 

 of more modern accounts (ADANSON, Hist, de Senegal, pp. 88, 89, SALT, 

 Voyage to Abyssinia, London, 1814, p. 172). 



Gryllus ccerulescens L., RCESEL, 1. 1. Tab. xi. fig. 4, DUMERIL, Cons. gen. 

 s. 1. Ins. PI. 29, figs. 3, 4 ; thorax obtusely carinated, elytra brown-grey 

 with darker streaks, wings blue, at the point white, with a broad, black 

 margin. 



Gryllus liguttatus CHAKPENT., Gryllus Uguttulus PANZER (not L.), PANZ. 

 Deutschl. Ins. Heft 33, Tab. 6, GERMAR, Faun. Ins. Europ. Fasc. xx. 

 Tab. 22, 23, one of the smallest species of this genus, only 5'" long; the 

 male has knobbed antennae, &c. 



Phymateus THUNB., SERVILLE. Antennae thick, longer than head 

 and thorax, with joints distinct, the last longer, acuminate towards 

 the apex. Plaritula large, orbicular between the claws of tarsi. 

 (Ocelli little distinct or none.) 



Sp. Gryllus morUllosus L., RCESEL, Ins. n. Locust. Tab. 18, fig. 6, STOLL, 

 PI. ii. b, figs. 3, 4, from the Cape of Good Hope. 



Add sub-genera Petasia SERV., Pcecilocera ejusd., JRhomalea ejusd., 

 and some others, here omitted. 



Xiphicera LAM., LATE. (Xiphocera BURM.) Antennae depressed, 

 lanceolate or ensiform. Frons produced into a cone. Other cha- 

 racters as in Grylli. 



Sp. Xiphic. serrata, Gryllus serratus L., DE GEER, Mem. in. PI. 42, fig. 2, 

 PI. 41, fig. 6 ; RCESEL, n. Loc. Tab. 16, fig. 2, STOLL, PI. 19 b, fig. 71, PI. 

 21, fig. 8 1 ; Xiphic. emarginata, SERV., RCESEL, 1. 1. fig. 3, Cuv. R. Ani. 

 ed. ill. PI. 85, fig. 2. 



Add genus Trigonopteryx CHAIIPENT. 



