450 NEW SPECIES OF AUSTIIALIAN COLEOPTERA, 



margined, fourth and fifth segments large; under-surface con- 

 cave along middle, the apical segment foveate. Metaaturnuin 

 depressed along middle, each side of middle with a small coni- 

 cal tubercle. Legs rather long; hind trochanters each with 

 a tooth as on nietasternum ; hind tibiae with a strong inner 

 median flange. Length, 4;^ mm. 



//r/,6.— Tasmania: Mount Wellington (H. H. D. Griffith). 



Readily distinguished from all other described species by 

 the peculiar wide flange of the hind tibise, ; each flange com- 

 mences at one-third from the base, is oblique to its widest 

 part, then slightly curved, then pointed, and strongly notched 

 to the tibia, where it ends at about one-third from the apex. 

 The tibia itself is tipped with a small acute hook. The under- 

 surface of the terminal joint of the antennae is somewhat as 

 in /'. Victoria'. The general shape is somewhat like that of 

 F. cltgans on an enlarged scale. 



COLLACEROTHORAX, n.g. 



Head rather short, deeply grooved along middle. Eyes of 

 moderate size, lateral, and prominent. Antennae rather short. 

 Palpi small, first joint concealed, second thickened to apex 

 and slightly curved, third rather stout, about one-half the 

 length of second, fourth obovate, slightly shorter than second. 

 Prothorax transverse, widest near apex, strongly sculptured. 

 Elytra transvei'se. Metasternum of moderate length. Abdo- 

 men strongly margined on upper surface, third and fourth 

 segments larger than the othei's, second tri-, the third bicari- 

 nated. Leys moderately short; tarsi with first joint very 

 short, second moderately long, third longer than first and 

 second combined, with two thin claws. 



The general appearance of the insect described below is 

 as of a stout, hairy PaJimholus ; and, for the present, the 

 genus may be placed between that and Tryomoryhus, from 

 both of which it is distinguished by the carinated abdomen. 

 Tmesiyhorus, with somewhat similar abdomen, has very dif- 



