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, 1318 corn-sacks were 
filled with grasshoppers, and at Arles 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, 1. 1833, pp. 486—489; these observations refer, how- 
ever, to other species than G'ryllus migratorius.) Different large species are 
eaten by people of the East, as, for instance, Gryllus cristatus L., Rassn, 
1.1. Tab. v. Already in Pliny examples are met with of locust-eating 
nations (Hist. nat. Lib. vr. c. 30 in fine, Lib. XI. c. 29 in fine), not to speak 
of more modern accounts (ADANSON, Hist. de Senegal, pp. 88, 89, Satur, 
Voyage to Abyssinia, London, 1814, p. E72) 
Gryllus ceerulescens L., Rasxu, 1. 1. Tab. xt. fig. 4, Dumfrit, Cons. gén. 
s. l. Ins. Pl. 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 biguttatus CHARPENT., Gryllus biguttulus 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 antenne, &c. 
Phymateus Tuuns., Servitte. Antenne thick, longer than head 
and thorax, with joints distinct, the last longer, acuminate towards 
the apex. Plantula large, orbicular between the claws of tarsi. 
(Ocelli little distinct or none.) 
Sp. Gryllus morbillosus L., Rasen, Ins. u. Locust. Tab. 18, fig. 6, Stout, 
Pl. 11. b, figs. 3, 4, from the Cape of Good Hope. 
Add sub-genera Petasia Surv., Pecilocera ejusd., Rhomalea ejusd., 
and some others, here omitted. 
Aiphicera Lam., Larr. (Xiphocera Burm.) Antenne depressed, 
lanceolate or ensiform. Frons produced into a cone. Other cha- 
racters as in Grylli. 
Sp. Xiphic. serrata, Gryllus serratus L., De Grrr, Mém. ut. Pl, 42, fig. 2, 
Pl. 41, fig. 6; Rasun, 1. Loc. Tab. 16, fig. 2, Sroxn, Pl. 19 b, fig. 71, Pl. 
21, fig. 81 ;—NXiphic. emarginata, SeRV., Raset, 1. 1. fig. 3, Cuv. R. Ani. 
éd. ill. Pl. 85, fig. 2. 
Add genus Trigonopterya CHARPENT. 
