388 Mr. E. Newman on the Genus Passandra, 10. and 11. male flower, different views, one more advanced than the other; 12. segments of the male flower separated ; 13. anther ; 14. pollen. [M. Polemanni agrees with M. Thomii in most particulars, except such as are noted in the figures. The colour of its flowers is however very much brighter ; that of the beards of its bracteae a bright orange, the perianth carmine. — W.H.H.] XLV. — On the Synonymy of Passandra, with Descriptions of all the old and of a few new Species, By Edward Newman, F.L.S. Class COLEOPTERA. Natural Order CUCUJITES. (Economy. — On this subject little appears to be known : from their depressed shape and their close resemblance to the true Cucuji, the Passandrce are supposed to be wood-feeding insects. Geographical Distribution. — Gambia, Cape of Good Hope, Sumatra, Java, Carolina, Cuba, Brazil. Authorities and Genera. — The genus Passandra was esta-blished by Dalman in the appendix to Schonherr's ' Synony-mia Insectorum/ in the year 1817. The only species referred to the genus was P. sexstriata, an insect nearly as large as Passalus cornutus, and inhabiting Sierra Leone and some other parts of Africa. A second species was described by Mr. G. R. Gray in the English translation of Cuvier^s c Regne Ani-mal/ A third species I described in the ' Entomological Magazine/ Closely allied to Passandra of Dalman is a genus of my own characterized in the c Entomological Magazine' under the name Hectarthrum, of which one species, H. curtipes, from Western Africa, is described. Very nearly related to Passandra and Hectarthrum is a third genus, characterized by Mr. Westwood in the ' Zoolo-gical Journal' under the name of Catogenus, and by Perty in his account of the Annulosa of Brazil, collected by Spix and Martius, under the name of Isonotus. Mr. Westwood refers to the Cucujus rufus as his type, and M. Perty describes a
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