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Show 362 INSECTA. The only species known-Tric!todea cyaneua, Fab.-inhabits the Isle of France. TILLus, Oliv., Fab.(l) Mandibles moderate, cleft or bidentated at the extremity; antenna: sometimes serrated fr·om the fourth joint to the tenth inclusively, with the last ovoid, and at others suddenly ter·minating, fr·om the sixth, in a serr·atcd club. The last joint of the lubi~l palpi is very large and securiform; head shot·t and rounded; th~rd and fourth joints of the tarsi dilated in the form of a reversed tnangle. 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. PRIOOERA, Kirb. The body convex; thorax narrowed posteriorly; last joint of the maxillary palpi less dila~ed 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 Priocem 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 .9xinaanali6, Kirb., lb., fig. 6. From Brazil. Ther·e, the penultimate joint of the tarsi is alone distinctly bilo· bate. 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., lb., s, also from Brazil. I have seen a ( 1) Tillus elongatus, Oliv., Col. II, 22, 1, 1; Cltrysomela elongata, L. ;-Okrul unifasciatus, Fab.; Oliv., IV, 76, ii, 21. The antennre of the first are serratedfrom the fourth joint, and the thorax is cylindrical. In the second, the antennz .from the sixth joint terminate in a serrated club. The tho1·ax is narrowed posterwrly. The last joint of the maxillary palpi is longer, in proportion, than that of the first species, and is compressed. COLEOPTERA. 363 second species of the same country in the splendid collection of M. de ]a Cordaire. We now come to species in which the tars~, 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( 1 ). Sometimes the an ten nee insensibly enlarge towards the extremity, orgradually terminate in a club; the intermediate joints, from the third, are nearly in the form of a reversed cone; the two or four penultimate joints form reversed triangles, and the last is ovoid. THANASIMus, Lat.-Clerus, Fab. The maxillary palpi filiform; last joint of those attached to the labium large and securiform(2). 0PrLo, Lat.-Notoxus, Fab. The four palpi terminated by a large securiform joiut(3). Sometimes the three last joints of the antennce are much wider than the preceding ones, suddenly formiug a club, either simple and in the form of a reversed triangle, or serrated. Those, in which this club is simple or not serrated, form two sub· genera. CLERus, Geoff.-Triclwdes, Fab. The maxillary pal pi of these Cieri, properly so called, are termi· nated by a compressed joint in the form of a reversed triangle; the last of those that belong to the labium, which are larger than the others, is securif'or·m. The antennal club is hardly longet• than wide, and is composed of crowded joints; the third is longer than the se. cond. The maxillce terminate in a projecting and fringed lobe. The thorax is depressed anteriorly. These Insects are found on flowers; their larvce devour those of certain Bees. Their stomach is widest anteriorly, and without plicce; their in· testine is short, with two enlargements behind. According to M. (I) The Insects of this subdivision compose the genus Clairon, properly so called, of Geoffroy; 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 wanting in the two that are anterior. (2) .B.ttelabus formicarius, L.; Clerus formicarius, Oliv., Col. IV, 76, 1, 13;Ckru, mutillarius, Fab.; Oliv., lb., I, 12. (3) .O.ttelabu,mollis, L.; Clerus mollis, Oliv., lb., I, 10. |