194 AUSTRALIAN PSELAPUID^J, 



r incrassatis, tibiis ad apicem leviter incrassatis. <J. Long. 

 110 mm. 



Australia (without locality). 



Tribe PSELAPHINI. 

 Genus Pselaphus, Herbst. 



Kaf. iv. 1792, p. 106. 



The insects belonging to this genus are to be found all over the 

 world, and seem to be specially abundant in Australia and New 

 Zealand. 



The character of the true genus Pselaphus resides in the 

 maxillary palpi, which are always very long and sometimes even 

 longer than the antennae; the 1st joint is elongate; between the 

 1st and 2nd joints there is only a suture and no articulation; the 

 2nd, elongate and slender, is pedunculate at base, and is clavate 

 at apex; the 3rd is very small; the 4th is very long, slender at 

 base and ends in a strong club; this club is generally sulcate at 

 the apex, and in this groove is inserted the membranous append- 

 age; in some species the club has no groove at tip, but is covered 

 with small papillose tubercles. This last form has not yet been 

 met with in Australia. 



The following is a synopsis of the Australian species which I 

 have seen : — 



A 2. Pubescence pale, short, more or less squamose. 

 B 2. Three fovea; independent at the base of the pro- 

 thorax, and no transverse furrow tripunctatus, Schfs. 



B 1. A transverse furrow at the base of the pro- 

 thorax. 

 C 2. Transverse furrow at the base of the prothorax 

 simple, not interrupted in the middle by a 

 median basal fovea. 

 D 2. Base of the prothorax behind the transverse 

 furrow more or less punctate or reticulate, 

 opaque. 

 K 2. Pubescence very scattered, more especially on 

 the elytra, where it is disposed in longitu- 

 dinal lines ; maxillary palpi very long, 

 slender; peduncle of the 4th joint longer than 

 the club. 



