ORDER COLEOPTERA. 177 



Sometimes the body is simply oval or oblong, with the 

 corselet almost squared, sub-isometrical, or more broad than 

 long, and not globular, nor of a knotty form. 



The third articulation of the anterior tarsi of the males, 

 does not advance internally, and the following is inserted at 

 its extremity. 



Among these last, the species, whose labial palpi are 

 sensibly longer than the external maxillary ones, with the 

 penultimate articulation longer than the last, form two sub- 

 genera. 



Megacephala, Lat. 



Which have the labrum very short, transverse, and the first 

 articulation of the labial palpi much longer than the follow- 

 ing, and projecting beyond the mentum.* 



OXYCHEILA, Dej. 



Of which the labrum is in the form of an elongated triangle, 

 and the first articulation of the labial palpi is not much 

 longer than the following, and projecting not beyond the 

 emargination of the mentum.f 



In the following species, the labial palpi are altogether of 

 the length of the external maxillary ones, Avith the last arti- 

 culation longer than the preceding. They also compose 

 two sub -genera, 



EupROSopus, Lat. Dej. 



In which the third articulation of the labial palpi is more 



* Cicindela Megalocepha'a, Fab. Oliv. II. 33, 11, 12. C Carolina, OViv. 

 Ibid. xl. 22. Megacephala Euphratica, Hist. Nat. des Coleap. d'Eur, I. 1,2, 

 See, for other species. Spec. Gen. de M. Le Comte Dejean. Tom. I. 

 p. 6, &c. 



\ Cicindela tristis. Fab. Oliv. Coleop. II. 35. iii. 35. Oxychdla tristis. 

 Dej. Spec. gen. des Coleop. I. p. 16. Cicindela bipustulata, Lat. Voy, &c, 

 M. M, Hnnib. et Bonpl Obser. d Anat. et de Zool, No. 1.5, xvi. 1, 2. 

 VOL. XIV, N 



