446 Mr. B,. E. Turner on Fossorial Hymenoptera. 



Bembex lamellata, Hand!. 



Bembex lamellata, Handl. Sitzber. Akad. Wiss. Wien, cii. p. 842 

 (1893). <j$. 



Hab. Adelaide, S.A. 



I have not seen this species. 



Bembex variabilis, Sm. 



Bembex variabilis, Sm. Cat. Hym. B.M. iv. p. 325 (1856). $ . 

 Bembex crabroniformis, Sm. Ann. & Mag. Nat. Hist. (4) xii. p. 296 

 (1873). S. 



Hab. Mackay, Q. (Turner) ; Townsville, Q. (Dodd) ; Port 

 Darwin, N.T. (G. Turner); Baudin Island, N.W.A. {Walker) 

 South Perth, W.A. (Giles) ; Waroona, W.A. (Berthoud) 

 Yallingup, W.A. (Turner) ; Adelaide, S.A. (Handlirsch) 

 Hunter River, N.S.W. (Smith). 



I can see no structural differences between variabilis, Sm., 

 and raptor, Sm., in the male sex, but have not been able to 

 examine the genitalia. At one time I thought they might 

 prove to be local races of one species, but I have since taken 

 both forms on the same day in King's Park, Perth. The 

 male variabilis has the abdominal fascise interrupted and the 

 basal joint of the anterior tarsus bordered with black on the 

 outer edge; the thoracic markings are also less developed 

 than in raptor. These colour-differences also exist in the 

 female, in which sex also the second ventral segment is 

 more sparsely punctured in raptor than in variabilis and the 

 sixth dorsal segment slightly broader in variabilis. 



Bembex raptor, Sm. 

 Bembex raptor, Sm. Cat. Hym. B.M. iv. p. 326 (1856). 3. 



Hab. Adelaide, S.A. (Smith) ; Killalpanina. E. of Lake 

 Eyre, S.A. (Hillier) ; Hermaunsburg, N.T. (Hillier) ; Alex- 

 andria, N.T. (Stalker) ; South Perth, W.A. (Giles) ; Nicol 

 Bay, W.A. (Du Boulay) ; Townsville, Q. (Dodd). 



This seems to be the commonest form in Central Australia. 

 Handlirsch seems to include it in his description of the very 

 closely related variabilis. 



Bembex leeuwinensis , sp. n. 



cj. Niger; mandibulis in medio sordide albidis ; orbitis interioribus 

 angustissime, tibiis tarsisque anticis subtus, tibiisque intermediis 

 subtus basi flavis ; tarsis apice brunneis ; alis hyalinis, venis 

 fusco-ferrugineis. 



