636 Longicornia Malayana. 



from Reunion, all the others are natives of Australasia 

 and the Malayan Archipelago ; the greater part, how- 

 ever, belong to the former.* 



Genera. 



Femora pedunculate-clavate. 

 With antennary tubers. 



Muzzle produced Ce^-esmm, Newm. 



Muzzle short Tcthionea, n. g. 



Antennary tubers obsolete Semiope, n. g. 



Femora gradually clavate. 



Antennary tubers prominent Examnes, n. g. 



Antennary tubers obsolete. 



Femora slender Salpinia, n. g. 



Femora strongly clavate 



Basal joint of posterior 



tarsi elongate Diatomoccphala, Bl. 



Basal joint of posterior 



tarsi short Dictamnia, n. g. 



Ceresium. 



Ceresium, Newman, Entom. i. 322 ; Lacordaire, 

 Gen. viii. 353. 



Caput antice paulo elongatum ; tuberibus autenniferis 

 parum prominentibus. Ondi supra vix approximantes. 

 Antennoi setaceee, corpore longiores ; scapo paulo 

 incrassato, mediocre ; articulo quarto tertio vel quiuto 

 breviori, quinto et sequentibus subf\3qualibus. Fro- 

 thorax oblongus, cylindricus, vel parum depressus, 

 tum utrinque paulo rotundatus. Elytra elougata, 

 angustata, fere parallela, apicibus integx'is. Pedes 

 mediocres ; femora pedunculate- clavata, postica 

 paulo elongata; tibice antica) et iutermediiB brevius- 

 culee ; tarsi postici articulo basali subelongato. Pro- 

 stcrnunt postice rotundatum. Mesosteruum sat am- 

 plum, declive. 



There are considerable differences in the form of the 

 prothorax of the species of this genus, varying continu- 

 ously, and without any aj)preciablc break, between that 



* One species, however, Diatomocephala simplex, is scattered over mauy 

 of the Pacific Islands, and I have a specimen from Madagascar. 



