344 CLASS INSECTA. 



The other insects of this tribe, and always distinctly pen- 

 tamerous, have the four palpi terminated in a knob. The last 

 articulation of the labial is almost always hatchet-formed. 



Here^ the first four articulations of the tarsi are furnished 

 underneath with membranaceous cushins, advanced, and 

 lobate. The corslet is elongated, and almost cylindrical. 



Priocera, Kirb. 



The body is convex, with the corslet contracted posteriorly. 

 The last articulation of the maxillary palpi is less dilated than 

 the same of the labials, in the form of a reversed and oblong 

 triangle. The labrum is emarginate. 



But one species is known {Priocera variegata^ Kirb. Lin. 

 Trans. XII. n. 389, 390. XXI. 7.). 



AxiNA, Kirb. 



The body is depressed. The last articulation of the four 

 palpi is very large, in the form of a hatchet. 



As yet but a single species has been described {Axina 

 analis, Kirb. ibid. fig. 6), and is found in Brazil. 



There, the penultimate articulation of the tarsi is alone 

 distinctly bilobate. The corslet is square. The body, other- 

 wise, is depressed, as in the preceding sub-genus, and the 

 palpi are terminated in a similar manner. 



EuRYTUs, Kirb. 



Eurypus rubens, Kirb. ibid. fig. 5, also inhabits Brazil. 

 I have seen a second species of the same country, in the fine 

 collection of M. de la Cordaire. 



At present, the tarsi, seen from above, do not appear com- 



tion, in a serrated knob. The corslet is narrowed posteriorly. The last 

 articulation of the maxillary palpi is proportionally longer than the same 

 of the first species, and compressed. 



