500 CLASS VIII. 
a) Antenne with eleven joints. 
Lytta Fasr., Cantharis Guorrr., Oxtv., Larr. Antenne 
straight, filiform, longer than head and thorax. Body oblong. 
a) With penultimate joint of tarsi entire. 
*) With elytra at the apex attenuated, subulate, dehiscent. 
Sitaris Latr. (Apalus Fasr.’) 
**) With elytra covering the whole abdomen above, not attenuated. 
Sub-genera: Gnathium Kirpy, Nemognatha Iiu1e., Latr., (with 
external process of maxille filiform, exsert), Zonitis Faur., 7’mesi- 
dera Wustw., Cantharis Larr. 
Sp. Lytta vesicatoria, Meloé vesicatorius L., Grorrr. Ins. 1. Pl. vi. fig. V.; 
Dumérit Cons. gén. s. l. Ins. Pl. to, fig. 6, BRanpr u. RATZEBURG 
Mediz. Zool. 1. Tab. xvitt. figs. 1—6, &c. Spanish Fly; green gold- 
glancing, with black antenne, a broad head, channelled above, thorax 
quadrangular, broader forwards, length 10°’. The blistering power of this 
insect renders it very important as a remedy in medicine. Other species 
also of the Meloéida possess the same property, which however, as is 
asserted, is not perceived in Apalus. The female lays her eggs in the 
ground ; the larve make their appearance after about three weeks, like 
those of Meloé (and of Apalus, which are quite similar to them according 
to GENS), hitherto known in the first period of their life alone, but not in 
their further growth. 
Compare C. A. Lenaus, Meloé vesicatorius, Diss., in C. LINNazI 
Amenit. Acad. VI. pp. 132—147; LoscuGE Beitrdge zur Gesch. der Span- 
ischen Fliege, Naturforscher Xx. 1788, s. 37—48, Tab. 1, figs. 1—8 ;— 
Avupouin Recherches pour servir & U Histoire nat. des Cantharides, Ann. des 
Sc. natur. 1X. 1826, pp. 31—61, Pl. 42, 43 (anatomical description) ; 
BRANDT u. Ratzesure |. 1. pp. 116—121 and Pl. x1x.; RaTZEBURG 
Forst-Ins. X. 1. pp. 88—9g2 &e. 
B) With penuliimate joint of tarsi bilobed. 
Tetraonyx Latr. 
Comp. LaTREILLE in Humpoupr et BonPLAND Observ. de Zoolog. et 
@Anat. Comp. 1. pp. 160—162, Pl. xvi. fig. 7. 
Ginas Latr. Antenne not longer than thorax or scarcely as 
long, geniculate, with first joint elongate, obconical, the rest broad, 
short, the last oval. 
Sp. Gnas afer, Lytta afra Fasr., Later. Gener. Crust. et Ins. Tab. X. fig. 10, 
Cuv. &. Ani. éd. ill., Ins. Pl. 54, fig. 9. 
1 J. Gent, Mémoire pour servir a UHist. nat. de VApalus bimaculatus et des 
Cantharides en général. Ann. des Sc. nat. XXIII. pp. 138—144. 1831. 
