1910.] FOSSORIAL WASPS OF AUSTRALIA. 355 



Genus Auchenophorus Turn. 



Auchenophorus Turn. Ann. & Mag. Nat. Hist. (7) xix. p. 270 

 (1907). 



I was quite wrong in considering this genus as in any way 

 related to the Ampulex section of the family. The true affinity 

 is with JVitela, with which the neuration agrees fairly well, but 

 the radial cell is not appendiculate and the cubitus of the hind 

 wing originates further from the transverse median nervure ; in 

 these points agreeing with Nitelopterus Ashm. In that genus, 

 however, the mandibles are deeply einarginate on the outer 

 margin. The species of Auchenophorus resemble Mutillidse, with 

 which the female of A. fulvicornis was taken at Cairns, running 

 on the ground with closed wings in localities where females of 

 Ephutomorpha were plentiful. 



Type of genus, A. coruscans Turn. (Plate XXXIL fig. 15, $ .) 



PlSON PERPLEXUM Sm. 



Pison perplexus Sm. Oat. Hym. B. M. iv. p. 314 (1856), $ , 

 9 • Olypeus rather strongly advanced in the middle anteriorly, 

 the anterior margin undulating at the sides, the produced apical 

 portion smooth, the remainder closely and finely punctured. 

 Head opaque, very minutely punctured, with a short longitudinal 

 carina on the front ; the eyes half as far again from each other on 

 the clypeus as on the vertex ; antenna? inserted nearer to each 

 other than to the eyes ; the second joint of the flagellum scarcely 

 longer than the third. Pronotum rounded at the anterior angles. 

 Thorax very finely and closely punctured. Median segment very 

 finely and closely obliquely striated, punctured between the stria?, 

 a longitudinal sulcus from the base to the apex in which lies a. 

 low carina. Abdomen opaque, very minutely punctured, the 

 segments depressed on the apical margin and bordered with fine 

 silver pubescence. Second cubital cell half as high as the third, 

 receiving the two recurrent nervures near the base and very 

 close to the apex. 



Black ; the tegula? testaceous at the apex. Wings f usco- 

 hyaline ; nervures black. 



Length 12 mm. 



Hob. South Perth, W. A. (H. M. Giles). January. 



Easily distinguished from the allied species by the shape of the 

 clypeus, which is broadly rounded in fmcipenne Sm., and much 

 less produced in spinolce Shuck. The type is a male in which the 

 second joint of the flagellum is much longer than the third. The 

 clypeus of the male is produced into a point ; but I think I am 

 right in placing the female described above with perplexum. 



PlSON ARGENTATUM Shuck. 



Pison argentatum Shuck. Trans. Ent. Soc. London, 1837, p. 79. 



Pison ignavum Turn. Proc. Zool. Soc. 1908, p. 511. 



The median segment in ignavum is more strongly striated than 

 in the typical form, but the difference is not sufficient to be of 

 full specific value. 



23* 



