1910.] FOSSORIAL WASPS OF AUSTRALIA. 351 



ferruginous ; a short transverse line on each side at the apex 

 of each of the three basal dorsal segments yellowish white ; 

 mandibles, apex of the scape, anterior tibiae and tarsi, and the 

 apical joints of the posterior tibiae and tarsi ferruginous brown ; 

 the depressed apex of the clypeus testaceous. Wings pale fusco- 

 hyaline, nervures black. 



The second cubital cell is petiolate ; second recurrent nervure 

 interstitial with the first transverse cubital nervure. 



Length 9 mm. 



Hab. South Perth, W. A. (H. M. Giles). 



This seems to differ too much from bascdis Sm. to be the 

 opposite sex of that species ; the second cubital cell in basalis is 

 pointed on the radial nervure but not petiolate, and the sculpture 

 differs considerably. 



Bembex cursitans Handl. 



Bembex cursitans Handl. Sitzber. Akad. Wiss. Wien, cii. p. 762 

 (1893), 6 2- 



Hab. South Perth, W. A. (H M. Giles). 



Bembex furoata Erichs. 



Bembex f areata Erichs. Arch. f. Naturges. viii. 1, p. 266 (1842). 

 Hab. The southern coast of Australia from Perth to Sydney ; 

 Tasmania.. 



Bembex flaviventris Sm. 



Bembex flaviventris Sm. Ann. Mag. Nat. Hist. (4) xii. p. 299 

 (1873), d$. 



% Bembex calcarina Handl. Sitzber. Akad. Wiss. Wien cii. 

 p. 754(1893), 6. 



The dilated spur of the anterior tibise in flaviventris answers 

 well to Handlirsch's figure. The type answers to the description 

 of calcarina, but none of the bands on the six basal dorsal 

 segments are interrupted and the postscutellum is also banded 

 with colour. Handlirsch does not notice the structure of the 

 apical joint of the intermediate tarsi, which is very slender at the 

 base, long, and broadened at the apex. 



Bembex mackayensis, sp. n. 



<$ . Clypeus strongly convex, not flattened in the middle. 

 Antennae inserted as near to each other as to the eyes, the apical 

 joint of the flagellum curved at the apex, joints 8-1 1 very feebly 

 spined beneath. Eyes very slightly divergent towards the 

 clypeus. Anterior tarsi normal, the basal joint with six spines 

 on the outer margin ; intermediate femora not serrate, the spurs 

 of the intermediate tibiae distinct. Seventh dorsal segment of 

 the abdomen narrowly rounded at the apex, the sides slightly 

 sinuate ; second ventral segment with a large, curved, longitudinal 

 tubercle which is broadly truncate at the apex; sixth segment 

 armed with a large, flattened, triangular plate; seventh small, 



