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 

 flow ers 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 Cucvji, 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 w^as described by Mr. G. 

 R. Gray in the English translation of Cuvier's ' 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 ' 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 

 Martins, under the name of Isonotus. Mr. Westwood refers 

 to the Cucujus rufus as his type, and M. Perty describes a 



