STUDIES IN THE FOSSORIAL WASPS. 729 



c? . Second abscissa of the radius about half as long as the 

 third. Basal lobe of tarsal ungues bluntly rounded. Apical 

 joint of the flagellum about half as long again as the penultimate 

 and slightly curved ; the eighth, ninth, tenth, and eleventh joints 

 subtuberculate in the middle beneath. Posterior tibite very 

 feebly spined on the outer margin. Pronotum short, scarcely 

 narrowed anteriorly. First abdominal segment very little longer 

 than the second, broader at the apex than long. Head and 

 thoi'ax closely and not very minutely jDnnctured. 



Black, with cinereous pubescence, calcaria black. Wings 

 fusco-violaceous. 



Length 17 mm. 



Hah. E. Coast of Australia between Sydney and Bx-isbane. 



The association of the sexes is not certain. The structui'e of 

 the male antennse is very remarkable. 



2. Anthobosca signata Sm. 



Myzine signata Sm. Cat. Hym. B, M. iii. p. 75 (1855), 5 . 



Cosila higuttata Sichel, Sauss. et Sichel Cat. spec. gen. Scolia, 

 p. 262 (1864), $. 



Dimorphoptera signata Sm. Trans. Ent. Soc. London, p. 238 

 (1868), $. _ _ 



Cosila (Callosda) signata Sauss. in GJrandidier, Hist. Madagascar, 

 XX. p. 232 (1892), $ . 



Yar. Dimo7-phopiera morosa Sm. Trans. Ent. Soc. London, p. 239 

 (1868), ?._ 



5 . Badial cell pointed and detached from the costa at the 

 apex, second recurrent nervure received at about one-quarter 

 from the base of the second cubital cell. Other details of 

 neuration as in australis Sich. Basal joint of hind tarsi with a 

 comb of thickly set spines beneath. Basal lobe of tarsal ungues 

 bluntly rounded. Shining and sparsely punctured, the front and 

 pronotum more closely punctured ; sixth ■ dorsal segment of 

 abdomen rugosely punctured. 



Black, with whitish pubescence, the calcaria white. Wings 

 fusco-violaceous. Third dorsal segment wdth an orange spot on 

 each side. 



Length 22 mm. 



Hah. E. Australia, from Sydney to Cairns. 



I look on morosa as a small variety in which the orange spots 

 on the abdomen are wanting. The second abscissa of the radius 

 is distinctly shorter than the third in the type of morosa, owing to 

 the sharp curve toward the base in the second transverse cubital 

 nervure, but I do not think that this distinction is of specific 

 importance. 



3. Anthobosca fastuosa Sm. (PI. LXXXI. fig. 3.) 



Dimor-phoptera fastuosa Sm. Trans. Ent. Soc. London p. 240 

 (1868),?. 



Myzine fastvosa D. T. Cat. Hym. viii. p. 123 (1897). 

 Proc. Zool. Soc— 191 2, iS^o. XLVIII. 48 



