Monograph on the Cehrionidce^ hjj Dr. Leach. 33 



Art. II. Monograph on the Cebrionidce, a Family of 

 Insects, by W. E. Leach, M. D. Sfc. 



To John George Children, Esq. F. R. S. SfC* 

 My dear Sir, 



I send you a Monograph on a Family of Insects, having 

 Cebrio for its type, which was written in the year 1815, and in- 

 tended for my Zoological Miscellany ; I have looked it over, and 

 corrected it, and now send it to you for the New Journal, in which 

 you are one of the Editors , together with the description of two 

 undescribed species of Insects, belonging to a genus established 

 ) . ^X ^trj^''^^? under the name Phengodes. 

 ^5 I remain, my dear Sir, yours most sincerely, 



December 19, 1823. William Elford Leach. 



Cebrio, Olivier, Fabricii, Rossi, et Laireille. 



CiSTELA, Rossi. 



Corpus plus aut minus antice inflexum. Abdomen saepius ellip- 

 ticum, convexiusculum, aut trigonum. 



Thorax capite plus aut minils latior. Scutellura parvum. 

 Elytra rigida, abdominis longitudine. Sternum anticum, in non- 

 nuUis productum, in aliis concavum, margine elevata, in alils planum 

 aut convexum. Pedes validi, femoribus crassiuscnlis, compressis. 

 Tarsi pedum anteriorum et mediorum 5-articulati ; posteriorum 

 4-articulati. 



Caput ovatum. Oculi magni, rotundati, prominuli. Maxillae 

 membranacea*. Mandibulaj exsertse, valida;, hiatu interposito. 

 Autennjc corporis fere longitudine, 10-articulatae, ante oculos in- 

 sertse. Labrum brevissimum. Ligula appendice palpigera in- 

 structa. Palpi quatuor. 



Body more or less infiexed. Abdomen most frequently elliptic, 

 somewhat convex or triangular. 



Thorax more or less broader than the head. Scutellum small. 

 Elytra hard, of the length of the abdomen. The anterior ster- 



* The Editors intend to give a Plate illustrative of the Genera described to 

 this paper in a future Number, 



Vol. L c 



