524 CLASS VIII. 
Sp. Lampyris splendidula L., Panzer Deutschl. Ins. Heft 4, Tab. 8, m. and 
fem., ScH#FFER, Elem. Entom. Tab. 74 (male), DuméRIL, Cons. gén. s. 1. Ins. 
Pl. 9, figs. 1, 2 (de glimworm, Johanniswurm, le ver luisant, the glow-worm). 
This species, and some others (Lampyris noctiluca L., Lamp. hemiptera, 
Lamp. ttalica, &c.), diffuse a phosphoric light by night; the males shine 
less than the females, and with them the light ceases after the pairing; the 
females, on the other hand, are very luminous when laying eggs. G. R. 
TREVIRANUS was of opinion that the light proceeded from the internal 
genital organs; this subject is fully treated by him Biologie, v. s. 1o5— 
116, Verm. Schriften, 1. s. 87—93. ‘The light becomes dull in carbonic 
acid and hydrogen gases, and stronger in oxygen gas; see on these and 
other particulars a letter of Marreucct to Dumas in the Comptes rendus, 
14 Aug. 1843. 
On the different species of this genus comp. Essai d’wne revision du genre 
Lampyre par Dr La Porte Ann. de la Soc. entomol. 11. 1833, pp. 122, 
123. 
Phengodes Horrmanns. Antenne with eleven joints, bipectinate, 
with cirri convoluted spirally. Elytra posteriorly narrowed. 
Species American, as Lampyris plumosa Far. &c. 
Amydetes HOFFMANNS. 
Omalisus GEOFFR. 
Dictyoptera LAr. 
Lycus Fasr., OLiv. Head small, concealed under the shield of 
thorax, with mouth porrect, rostrate. Palps with last joint thicker. 
Antenn approximate, filiform or serrate. Elytra in many dilated, 
broader than abdomen. 
Comp. on this genus Faprici Syst. Hleuth. 11. pp. 110—118, and 
Da.MAN in ScHoENH. Synon. Ins. 1. 3, Append. pp. 25—33, Tab. 5. 
Cyphon Fasr., (Llodes Latr., Scirtes Iuiia., Latr.). Mandi- 
bles entire, with apex simple, small, scarcely exsert beyond 
labrum. Palps filiform, labial furcate at the apex, with last joint 
inserted before the apex of penultimate. Antenne distant, longer 
than thorax. Hlytra rather soft. Posterior feet in many saltatory, 
with femora incrassated. 
Sp. Cyphon hemisphericus Fasr., PANZER Deutschl. Ins. Heft 96, Tab. 7, &e. 
Add genera Hubria Zeer, Vycteus Later. 
Dascillus LATR, 
Ptilodactyla Tue. 
Sub-genus : Colobodera Kuve. 
SIO 
