ON SOME AUSTRALIAN CURCULIONIDAE. By Arthur M. Lea, F.E.S. [Read 25th August, 1926.] The species dealt with in the following pages are all of small size, but some of them are of great interest. Erirhinides. Encosmia. This genus is abundantly represented in Australia, although but four of its species have been named hitherto; as it has numerous allies I have passed over several species which might fairly be regarded as belonging to it, but. which differ in certain details considered by Blackburn as of generic importance. The following species all agree in the characters noted in Blackburn's table of Brirhinides {Trans. Roy. Soc. 8. Aust., 1914, 148), but the male of E. ventralis (described elsewhere) has the apical segment of the abdomen slightly longer than the second; but as it is close to several others in which the abdomen is normal, it was not considered advisable to separate them generically. Other species also differ sexually in the length of the apical segment. In many respects the genus is extremely close to Empolis, the species of which are usually larger, but there appears to be no single character by which the species of the latter genus can be separated, other than by the longer apical segment of the abdomen. Table of Species of Encosmia. A. Elytra bifasciculate. a. With golden spots on shoulders and below fascicles cornuta aa. Without such spots fasciculata AA. Elytra nonfasciculate. B. Club at most feebly infuscated, scarcely if at all darker than scape. b. Metasternum black or blackish. c. Clothing entirely white. d. Prothoracic and abdominal clothing dense and concealing derm . . alba dd. Clothing there sparser, so that punctures readily traceable melanostetha cc. Clothing not entirely white. e. Second joint of funicle shorter than third and fourth combined • ci'yptoderma ee. Second as long as third and fourth combined. /'. A large subtriangular patch of dark scales on each elytron adelaidae ff. Without triang-ular patches of scales interrupta bh. Metasternum pale. g. Scales conspicuously variegated on apical half of elytra ruficornis gg. Scales not conspicuously variegated there. h. Elytral scales forming a white postmedian fascia followed by an apparently denuded one albifascia hh. Elytral clothing nowhere forming a complete fascia.
BioStor
