72 Mr. R. E. Turner on New Species of 



segment, in the more convex base of the second ventral segment, 

 and in the presence of a fourth spine on the basal joint of the fore 

 tarsus. 



(J. Differs from melancholiciis in the larger size, 11 mm.; in the 

 strongly compressed sides of the apical ventral segment, which 

 leave the median carina very prominent, the segment is also covered 

 with long hairs, which are especially conspicuous along the carina 

 and on the apical fringe; the sixth ventral segment is more convex 

 than in melancholicus, and the fasciae of cinereous pubescence 

 which in melancholicus are confined to the three basal segments 

 extend in vassei to the sixth. 



Hab. S.W. Australia, Yallingup {Turner), December. 



10. Psammochares bassianus, sp. n. 



$. Closely allied to vassei, but has three spines only on the basal 

 joint of the fore tarsi, the sixth dorsal segment is quite distinct, 

 the apical half of the segment being smooth, shining, and slightly 

 concave in bassia7ius, the apex a little produced and not very 

 broadly rounded, in vassei the segment is slightly convex throughout, 

 the apical half subopaquc and very closely and minutely punctured 

 and very broadly rounded at the apex; in melancholiciis the seg- 

 ment is more narrowly rounded at the apex than in either, convex 

 throughout, the apical quarter shining and almost smooth. 



Hah. Tasmania, Eaglehawk Neck {Turner), February. 



Unfortunately I did not take the male. The group of 

 melancholims seems to be very extensive and the species 

 very closely allied, but differing especially in the apical 

 segments of both sexes. I have two or three Eastern 

 Australian forms, but have not sufficient material from 

 which to describe them. 



11. Psammochares labilis, Sm. 



Pompilus labilis, Sm., Descr. new species Hymen., p. 151, 

 1879, ^ (as ?). 



The thorax in this species is without pubescence in the 

 female, but the pronotum of the male is covered with 

 close-lying Avhitish hairs, the head also being covered with 

 similar hairs in both sexes except on a transverse band 

 across the ocellar region. The colour of the pubescence 

 varies from whitish to dull yellowish. The female has 

 three long spines on the basal joint of the fore tarsi. 



