BY ARTHUR M. LEA. 217 



Family PAUSSID^E. 

 Megalopaussus, n.g. 



Antennae 11-jointed; 2nd joint very small, globular and almost 

 contained in 1st, none of the others transverse. Scutellum small 

 but distinct. Elytra without membranous tip. Tibiae moderately 

 long and compressed, but not very wide. Tarsi with 

 1st and 3rd joints rather small, 2nd large, 4th very small and 

 apparently forming part of 5th, 5th almost as long as the rest 

 combined. Palpi and other characters as in Arthropterus. 



The species described below is the largest of its family in 

 Australia, if not in the whole world. Its shape, whilst peculiar, 

 is much less so than that of all others of its family of which 

 I have seen specimens or figures; its comparatively simple antennae 

 and tibiae being strongly at variance with those parts of all other 

 Paussidce. Its antennae are suggestive of Protopaussus, but the 

 second joint is not truly free as in that genus, and the prothorax 

 is utterly diffei'ent. 



Megalopaussus amplipknnis, n.sp. 

 (Plate xviii., tig. 5.) 



Dark reddish-brown. Clothed with rather short, suberect, 

 setose pubescence of a reddish colour. 



Head small, with sparse scattered punctures, vertex with 

 two shallow and irregular impressions. Antennae passing hind 

 coxae; 1st joint longer than 3rd, thick and subcylindrical, but at 

 base very thin, with rather coarse punctures; 2nd almost con- 

 cealed, 3rd-llth flat, with dense punctures more or less granular 

 in appearance; 3rd-10th each slightly longer than wide, but 

 gradually decreasing in width; 11th rounded at apex and the 

 length of 9th and 10th combined. Prothorax slightly incurved 

 to middle of apex; sides strongly rounded in front, suddenly con- 

 stricted near base, median line traceable throughout, but distinct 

 only in two places; with scattered punctures. Scutellum very 

 small. Elytra very large, much wider than prothorax and more 

 than twice as long as head and prothorax combined, almost 



