Hymenoptera in the British Museum. 73 



Hah. Queensland, Townsville {Dodd), January and 

 February; Northern Territory, Port Darwdn {G. F. 

 Hill) ; N.W. Australia, Nicol Bay {Dr. Clement). 



12. Psammochares basilicus, sp. n. 



$. Nigra, capite luteo pubescente, fascia transversa in regione 

 ocellari nuda; segmento dorsali fascia angusta apicali subinter- 

 rupta, secundo tertioque macula transversa utrinque cinereo- 

 pubescente ; segmento mediano lateribus ante apicem distinctissime 

 tuberculato. 



Long. 19 mm. 



?. Very near P. labilis, but may be distinguished from that 

 species by the absence of the very broad abdominal fasciae, by the 

 presence of four long sjDines on the basal joint of the fore tarsi; 

 the median segment has a very deep median sulcus and a blunt 

 tubercle on each side before the apical angles, the tubercle being 

 almost obsolete in lahilis; in both the apical dorsal segment is 

 broadly rounded at the apex, but the puncturation of the segment, 

 though very minute in both, is more distinct in lahilis. The second 

 abscissa of the radius is scarcely twice as long as the third in basilicus, 

 and in West Australian specimens of lahilis, but about four times as 

 long in Queensland specimens of lahilis. 



Hah. N. Queensland, Townsville {Dodd). 



Nearly allied to this group but differing in having the 

 submedian cell distinctly longer than the median in both 

 sexes and the tarsal ungues in the male bifid are the two 

 following species — 



1. Psammochares amoenulus, Turn. 



Anopliits amoenulus, Turn., Proc. Zool. Soc. London, 

 p. 329, 1910, ?. 

 Hah. Queensland, Brisbane and Mackay. 



\2. Psammochares elatus, Sm. 



Pompilus elatus, Sm., Journ. Linn. Soc. Zool.. viii. p. 82, 

 1864, ?. 



Hah. Queensland, Mackay and Tovsiisville ; Moluccas, 

 Morty Island. 



Another generic group is easily distinguished by the 

 coarse granulation of the thorax, especially strong on the 

 median segment; by the very long submedian cell, which 

 is much longer than the median; by the very short third 



