442 IN8ECTA. 



TILLUS, Oliv., Fab* 



Mandibles moderate, cleft or bidentated at the extremity ; antennae 

 sometimes serrated from the fourth joint to the tenth inclusively, with 

 the last ovoid, and at others suddenly terminating, from the sixth, in 

 a serrated club. The last joint of the labial palpi is very large and 

 securiform; head short and rounded; third and fourth joints of the 

 tarsi dilated in the form of a reversed triangle. Found in old wood 

 or on trunks of trees. 



In the remaining Insects of this tribe, which are always distinctly 

 pentamerous, the four palpi terminate in a club ; the last joint of the 

 labials is almost always securiform. 



Here, the four first joints of the tarsi are provided underneath with 

 membranous pellets, projecting in the form of lobes. The thorax is 

 elongated and almost cylindrical. 



PRIOCER A, Kirb. 



The body convex ; thorax narrowed posteriorly ; last joint of the 

 maxillary palpi less dilated than that of the labials and in the form of 

 a reversed and oblong triangle ; the labrum emarginated. 



But a single species is known, the Priocera variegata, Kirb., 

 Lin. Trans. XII, p. 389, 390, xxi, 7. 



AXINA, Kirb. 



The body depressed ; last joint of the four palpi very large and 

 securiform. 



But a single species has yet been described, the Axina analis, 

 Kirb., Ib., fig. 6. From Brazil. 



There, the penultimate joint of the tarsi is alone distinctly bilobate. 

 The thorax is square, The body is depressed as in Axina, and the 

 palpi terminate as in the same subgenus. Such is 



EURYPUS, Kirb. 



E. rubens, Kirb., Ib., 5, also from Brazil. I have seen a 

 second species of the same country in the splendid collection of 

 M. de la Cordaire. 



We now come to species in which the tarsi, when viewed from 

 above, appear to consist of but four joints, the first of the usual five 

 being very short and concealed under the second f . 



* Tillus elongatus, Oliv., Col. II, 22, 1, 1 ; Chrysomela elongata, L. ; Clerus 

 unifasciatus, Fab. ; Oliv., IV. 76, ii, 21. The antennae of the first are serrated from 

 the fourth joint, and the thorax is cylindrical. In the second, the antennae from 

 the sixth joint terminate in a serrated club. The thorax is narrowed posteriorly. 

 The last joint of the maxillary palpi is longer, in proportion, than that of the first 

 species, and is compressed. 



f The insects of this subdivision compose the genus Clairon, properly so called, 

 of Geoffrey ; M. Dufour admits that the posterior tarsi consist of five joints, the 

 first of -which is very short ; the same joint is rudimental in the intermediate tarsi, 

 and wantingin the two that are an terior. 



