Mr. R. E. Turner on Fossorial lli/menopieni. 85 



Nijsson (Acanthostethus^ tasmanicus, sp. n. 



2 . jS^igra, opaca, dense punctata ; mandibulis pedibusque rufo- 

 testaceis ; segmontis dorsalibus 1-5 macula transversa lateral! 

 iitrinque Havidula ; alls byalinis, venis nigris. 



Long. 6 mm. 



? . Clypeus broadly and sliallowly emargiuate at the apex. 

 AntenniB inserted as near to tlie eyes as to each other, 

 gradually thiekeued to the apex, the apical joint nearly twice 

 as long as the penultimate. Eyes separated at the base of 

 the clypeus by a distance equal to about twice the lengtli of 

 the scape, strongly divergent towards the vertex, the poste- 

 rior ocelli half as far again from the e_yes as from each other. 

 Head closely and rather finely punctured, clothed with siiorc 

 silver pubescence ; a strong longitudinal carina on tlie front 

 between the anteunaSj not reaching halfway to the anterior 

 ocellus. Thorax rather more coarsely punctured than the 

 head ; median segment irregularly rugose-striate, the poste- 

 rior angles ])roduced into stout spines and clothed with 

 silver pubescence. Abdomen closely punctured, but less 

 coarsely than the thorax, second ventral segment more 

 coarst'ly punctured, apical dorsal segment broadly triangular 

 and punctured- rugose. Second cubital cell pointed, some- 

 times distinctly petiolate, second recurrent nervure inter- 

 stitial with the first transverse cubital nervure. Hind tibiaj 

 almost smooth, with a few very short spines. 



Hub. Mount Wellington, 2300 ft. ; Eaglehawk Neck, 

 S.E. Tasmania. February. 



Near A. punctatissimus, Turn., but differs in the form of 

 the clypeus, the finer puncturation, and the smoother hind 

 tibiae. 



The male is very similar to the female, it has the seventh 

 dorsal segment broadly truncate at the apex, with a spine at 

 each of the apical angles. There is no fringe of long hairs 

 on the ventral segments. 



Sub f am ily Csabr oninje. 

 Key to the Australian Species of Rhopalura. 



$?. 



1. First abdominal segment sborter than the 



second 2. 



First abdominal segment as long as or 

 longer than the second 3. 



2. Head very birge ; eyes nearly as far from 



the posterior margin of the head as 



from each other B. macrocephaluf', Turn. 



