1910.] FOSSORIAL WASPS OF AUSTRALIA. 265 



the segment gradually sloped posteriorly, not truncate. Abdomen 

 rather shorter than the head, thorax, and median segment com- 

 bined, tapering slightly at the extremities, the segments rather 

 closely punctured at the base, smooth and shining at the apex. 

 Hypopygium rounded, not projecting beyond the dorsal segment. 

 Third abscissa of the radius longer than the second ; second 

 recurrent nervure received just beyond one-quarter from the 

 base of the third cubital cell. 



Black, with sparse grey pubescence; mandibles, tegidae, femora, 

 tibiae, and tarsi ochreous. Wings hyaline, nervures fuscous. 



Length 10 mm. 



Hah. New South Wales (Staudinger), 2 <$ . 



Type in Berlin Museum. 



This species approaches lucidus Sm., but may easily be dis- 

 tinguished by the remarkable form of the clypeus. 



ElRONE RUFICORNIS Sm. 



Thynnus (Agriomyia) ruficoruis Sm. Cat. Hym. B. M. vii. p. 34 

 (1859), 6. 



Eirone ruficornis Turn. Proc. Linn. Soc. N.S.W. xxxii. p. 265 

 (1907), 6. 



5 . Head rectangular, very slightly rounded at the posterior 

 angles, longer than broad, very sparsely and minutely punctured, 

 with a short, longitudinal, frontal sulcus; the mandibles stout, 

 blunt at the apex, bidentate ; antennae fully half as long again as 

 the head. Thorax very sparsely punctured ; the pronotum longer 

 than broad, very slightly narrowed anteriorly, a little shorter 

 than the median segment; scutellum rather broader than long, 

 the mesopleurae showing a distinct dorsal surface on each side of 

 it ; the median segment longer than broad and slightly broadened 

 posteriorly. Abdomen elongate, subcylindrical, sparsely and 

 finely punctured, the punctures more or less elongate : the basal 

 segment shorter than the second, almost as broad at the base as 

 at the apex ; the pygidium without a carina, rounded at the 

 apex. 



Shining black ; the prothorax and median segment ferruginous ; 

 legs, antenna?., mandibles, and pygidium fusco-ferruginous. 



Length 7 mm. 



Hob. Glaremont, W. A. (H. M. Giles). December. <$ § in cop. 



" On Eucalyptus bloom." 



Eirone ferrugineicornis, sp. n. (Plate XXXI. fig. 3, 6 .) 



S . Clypeus strongly convex at the base, raised and subcarinate 

 in the middle, flattened towards the apex, produced anteriorly 

 and rather narrowly truncate on the apical margin. Head and 

 thorax shining and rather sparsely punctured ; the head broadly 

 emarginate posteriorly, not narrowed behind the eyes ; antennae 

 as long as the thorax without the median segment, filiform, 

 a little more slender towards the apex. Pronotum scarcely nar- 

 rowed anteriorly, the anterior margin slightly raised ; piopleura? 



