INSECTA. 525 
Comp. Kiva Veber zwei newe Kifergattungen, WinGMann’s Archiv f. 
Naturgesch, 1838. 8. 67—70. 
Rhipicera LAtR., Kirsy. 
Sandalus Knocn. 
Callirhipis Latr. 
Anelastes KirBy. 
Cebrio Ottv., Fapr. (in part). Mandibles entire, with apex 
simple, exsert, decussating. Palps filiform, labial with last joint 
obconical, truncated. Antenne distant, longer than thorax (in fe- 
males shorter, thick). Thorax broader posteriorly, with angles 
produced. Prosternum mucronate posteriorly. 
Sp. Cebrio gigas Fasr., Dumérit Cons. gén. s. 1. Ins. Pl. 8, fig. 1, PANzER 
Deutschl. Ins. Heft 5, Tab. 10; in south of Europe. The female lives under 
ground, and continues there at pairing time, protruding the abdomen alone, 
so that the male does not see her, AUDOUIN ef BRULLE Hist. nat. des Ins. 
VI. 1837, pp. 221, 222. 
Physodactylus FiscuEr. 
IJ. Prosternum produced anteriorly as far as the mouth or be- 
yond the mouth, mucronate posteriorly. Elytra hard, (Sternoxi 
Latr., Macrosternt WESTW.) 
Llater L. Antenne setaceous, serrate or pectinate. Mandibles 
emarginate at the apex or bidentate. Palps with last joint larger, 
obtrigonal, truncated. Mucro of prosternum received in a cavity of 
mesosternum. Body elongate, with thorax oblong, narrower ante- 
riorly, of the breadth of elytra posteriorly, with angles produced, 
acuminate. Tarsi slender. 
Spring-beetles. When these animals are touched, they retract their feet 
considerably. Since the feet are very short, these beetles, when laid on 
their back, are not able to reach the ground, and so could not right them- 
selves again, if they could not by throwing themselves upwards attempt to 
regain their feet, The animal, lying on its back, bends the thorax towards 
the back or downwards, and thus causes the style of the prothorax to 
emerge from the cavity in which it lies when at rest. Then bending the 
body suddenly, so that the point again shoots into the cavity, the insect 
with the back part of the thorax forcibly strikes the ground, and is thrown 
upwards by the rebound. 
The larve live under the bark of trees, in decaying wood, or under 
ground, where they gnaw roots. They have an elongate cylindrical body 
with six feet and a very hard horny skin. 
