COLEOPTEUA. GALERUCID,^. 381 



exotic species of Hispa have the head produced in front into a por- 

 rected horn (H. monoceros Oliv., porrecta Gyll.., rostrata Kirhyy, these 

 compose the genus Crjptonychus Gi/ll. (Oxycephala Guerin). Ano- 

 ther Brazilian species, forming the genus Chelobasis Gray (Arescus 

 Perty), has the head also cornuted in front, with the basal joint of the 

 antennae produced on the inside into a long spine. 



The second family, Galerucid.^* Stephens, is distinguished by the 

 ovoid, oval, or subhemispherical form of the body (^Jig.iQ. 14. G. 

 nymphaeae, 46. 16. G. tanaceti, 47. l. G. capreffi) ; the antennae, which 

 are always more than half the length of the body, of an equal thick- 

 ness throughout, inserted near together at the base, and at a short 

 distance from the mouth ; the maxillary palpi are thickest in the 

 middle, with the last two joints, resembling two cones, united together 

 at the bases, the terminal joint being more or less conical and pointed 

 {Jig. 46. 17. labrum, 46. 18. mandible, 46. 19. maxilla, 46. 20. labium, 

 of G. tanaceti). The legs are simple, and nearly of an equal size ; 

 in some, however, the posterior femora are incrassated ; and these 

 species, which are the smallest in the family, possess in a remarkable 

 degree the power of leaping. 



The species are generally of small size, and of obscure colours, 

 compared with the Chrysomelidae, although many of the saltatorial 



* BiBLioGR. Refer, to the GALERuciDiE. 

 niiger. Mag. der Entomologle, vol. vi. (descriptions of 170 species of ITaltica) 



Entomolog. Heftc. Frankf. 1803. 8vo. second part (descriptions of 50 Ilalticte, 



with figures). 

 Kukn, in Der Naturforschcr, St. vi. 



Weber. Observationes Entomol. (Oides, Adorium Fair.). 

 Germar. Nov. Sp. Ins. 



Drapiez. Annales des Scicnc. Pliysiq. Bruxellcs, ill. p. 181. (Octogonotes). 

 Thunherg, in Act. Ups. iv. 



Thunherg, in Act. Holm. 1814. (Thaumacera). 

 Hope, in Zool. Misc. Gray ( (Egeloccrus). 

 Guerin. Icon. R. An. Ins. pi. 49. 

 Germar, in Silberm, Rev. Ent. No. 7. (Chirodica). 

 Terty. Delect. An, art. Braz. 



SaMberg. Periculi Entomol., and in Thon's Arcliiv. vol. ii. 

 Gyllenhall, PaykulL, Fabricius, Steji/iens, &c. 



