Mr. R. E. Turner on Fossorial Hymenoptera. 89 



defined, not rounded ; mesonotum witliout a sulcus. Tri- 

 angular area at the base of the median segment coarsely 

 rugose, not divided by a sulcus. First abdominal segment 

 longer than the second, very slender at the base, swollen at 

 tiie apex ; the second segment about four times as wide 

 at the apex as the first. Pygidial area sparsely punctured. 

 Kecurrent nervure received just before two-thirds from the 

 base of the cubital cell. Hind tibipe moderately spiuose. 



Hab. King^s Park, Perth, W. Australia. 



One female taken on Eucalyptus blossom. 



Rhopalum varillarse, sp. n. 



5 . Nigra, iiitida ; scapo subtus, tibiis aiiterioribus supra, tarsis 

 anterioribiis intermediisque, articulo apicali excepto, tarsisque 

 posterioribus articulis tribiis iutermediis flavis ; alls hyalinis, 

 venis nigris. 



Loug. S mm. 



Clypeus with a carina from the base to the middle, covered 

 with white pubescence. Eyes separated at the base of tlie 

 antennae by a distance equal to about one-third of the 

 length of the scape. A broad longitudinal groove on the 

 inner margin of the eyes, level with the anterior ocellus. 

 P(;sterior ocelli a little farther from each other than from 

 the anterior ocellus, a little farther from the eyes than from 

 each other, Avith a short longitudinal sulcus between them. 

 Mesonotum subcarinate in the middle, basal area of the 

 median segment smooth and shining, without a median 

 groove. First abdominal segment as long as the second, 

 slender at the base, the apical half strongly swollen ; second 

 segment broadened from the base ; fifth segment sparsely 

 covered Avith grey pubescence ; pygidial area shining, 

 sparsely punctured, elongate-triangular. Hind tibiae much 

 swollen towards the apex, armed on the outer side with a 

 row of small spines. Radial cell broadly truncate at the 

 apex, transverse cubital nervure joining the radius close to 

 one-third from tne base of the radial cell, the recurrent 

 nervure received just beyond the middle of the cubital 

 cell. 



Hab. Mt. Wellington, 2300 ft.; January. Eaglehawk 

 Neck ; February. 



Allied to the New Zealand species R. albipes and R. per- 

 forator, Sm., but diff"ers from both in the less spinose tibiae 

 and in other details of structure and colour. The tarsi are 

 coloured as in the male of albipes, Sm., but in that species 

 the female differs from the male in this point. 



