COLEOPTEEA.—LEA. 



189 



Family MALACODERMID^. 



METRIORRHYNCHUS. 



The rostrum long, short, or absent, antennce serrate, pectinate, or ramose, 

 prothorax three-, four-, five-, or seven-areolate, sul)sutural costa shnple, bifurcate 

 or trifurcate, and elytral punctures in single or double series or irregular, are 

 characters amongst which there are so many intervening ones that probably the 

 names Achras, CladopJiorus, MetriorrhyncJins, Stademis, SyncJionnus, Trichalus, 

 Porrostoma, and Xylohanus should be regarded as synonymous, or at the most 

 as representing sections of a genus; but as C. 0. Waterhouse and others have 

 regarded some or all of them as valid I do not purpose proposing new specific 

 names for some that have been used more than once; these names (of whicli 

 at least one of each was for an Australian species) are as follows: — 



ampliatus (Trichalus) Waterhouse, 



1877. 

 ampliaUis {Xylohanus) Macleay. 



1887. 

 angustulus {Metriorrliynchus) 



Waterhouse, 1879. 

 angustulus (Trichalus) Macleay, 



1887. 

 apicale (Porrostoma) Waterhouse, 



1877. 

 apicalis (Cladophorus) Macleay, 



1886. 

 apicalis (Trichalus) Macleay, 1886. 

 atcr (Metriorrhynchus) Waterhouse, 



1879. 



ater ('Xylohanus) Macleay, 1887. 

 lincatus (Metriorrhynchus) Hope, 



1831. 

 lineatum (Porrostoma) Waterhouse, 



1877. 

 longicornis (Cladophorus) Macleay, 



1886. 

 longicornis (Xylohanus) Macleay, 



1887. 

 serraticornis (Lyons) Fabricius. 



Syst. Ent. p. 203; transferred by 



Waterhouse to Trichalus, 1877. 

 serraticornis ( Metriorrhynchus ^' 



Macleay, 1887. 



METRIORRHYNCHUS CLIENTULUS Waterh. 

 Seven specimens from Mount Tambourine, one from Brisbane, and one 

 from the Tweed River agree with the original description and figures of this 

 species, of which only a female was known to Waterhouse, but in his second 

 description the elj'tra were described as having the apical fifth black, and were 

 so figured. Of the specimens before me three have at least two-fifths black, and 

 one of the others from one-fourth to one-third ; as they are certainly conspecific 

 and the markings somewhat variable, it is probable that the type had less of 

 the apex dark than the average. The male differs from the female in having 

 longer antennge, with the serrations more pronounced, the legs somewhat longer, 

 and in the abdomen. 



METRIORRHYNCHUS CCENOSUS Lea. 

 Two specimens, from the Queensland National Park, evidently belong to 

 this species, but differ from the types in having the lateral third and rather 

 more than the apical third of each elytron flavous, instead of the margins and 

 tips only. 



