1910.] FOSSORIAL WASPS OF AUSTRALIA. 279 



apical angles, the sixth segment without a spine. Hypopygium 

 with a spine on each side close to the base, thence rather narrowly 

 triangular to the base of the acute apical spine. Second abscissa 

 of the radius more than half as long again as the third, the first 

 recurrent nervure received at three-quarters from the base of the 

 second cubital cell, the second at one-fifth from the base of the 

 third cubital cell. 



Black ; the clypeus, except a pyriform black mark on the 

 middle, the base of the mandibles, two oblique lines between the 

 antenna?, the margins of the pronotum, a spot on the mesonotum, 

 the tegula?, a broad curved band on the mesopleurae beneath the 

 anterior winas, a spot before the intermediate coxa?, a large spot 

 on the scutellum and a smaller one at each of the anterior angles, 

 the postscutellum, an irregular transverse band at the apex of 

 the median segment, sometimes interrupted, a narrow transverse 

 band on each side on dorsal segments 1-5, and a small spot at the 

 base of the anterior tibiae, yellow ; a small spot close to the summit 

 of each eye dark ferruginous red ; the anterior and intermediate 

 tibiae and tarsi testaceous brown. Wings hyaline, nervures 

 fuscous, the stigma ferruginous brown. 



Length 12 mm. 



2 . Head shining, sparsely punctured, more closely on the 

 front than elsewhere, much broader anteriorly than long, strongly 

 rounded posteriorly ; the clypeus short and with a longitudinal 

 carina. Pronotum narrower than the head, narrowed posteriorly, 

 the anterior angles rather prominent (the dorsal surface destroyed 

 by the pin) ; scutellum very narrow, longer than broad. Median 

 segment punctured, shorter than the scutellum, broadened from 

 the base and obliquely truncate posteriorly, the surface of the 

 truncation shining, at the base finely punctured and pubescent. 

 Abdomen shining, with a few scattered punctures, the first seg- 

 ment with the apical margin raised .and a broad transverse groove 

 before it ; second segment with five strong transverse carina? in 

 addition to the raised apical margin. Pygidium sharply deflexed, 

 long and narrow, nearly four times as long as the greatest breadth, 

 broadest at the middle, narrowly rounded at the apex, a tuft of 

 long golden hairs on each side. Fifth ventral segment very 

 coarsely and closely punctured. 



Fuscous ; head and pygidium fusco-ferruginous, legs ferru- 

 ginous brown ; apical margin of the second dorsal segment of the 

 abdomen pale testaceous. 



Length 6 mm. 



Hab. Ralum, New Britain (DahJ). <$ 2 in cop. 



Types in the Berlin Museum. Described from three males 

 and one female. 



The male is very near abductor Sm. and vagans Sm,, but. the 

 female differs from that of vagans in the shape of the head and 

 in the number of carina? on the second dorsal segment ; in the 

 latter character it also differs from Icevissimus Sm., which is 

 probably the female of abductor. The yellow band at the apex of 



