STUDIES IN THE FOSSORIAL WASPS. 751 



yellow ; tibi?e fusco- ferruginous ; calcaria white. Wings hyaline, 

 nervures fuscous. 



Length 12 mm. 



Uah. Cairns, Queensland. 



43. Anthobosca crassicornis Sm. (PI. LXXXI. fig. 1.) 



Tachypterus crassicornis Sm. Cat. Hym. B. M. vii. p. 64 

 (1859), J. 



Trachypterus crassicornis D. T. Cat. Hymen, viii. p. 120 

 (1897), c?. 



Anthohosca crassicornis Turn. Proc. Linn. Soc. N.S.W. xxxii. 

 p. 519(1907), 6. 



5 . Clypeus produced in the middle and rather narrowly trun- 

 cate at the apex. Antennae slightly longer than the thorax and 

 median segment combined. Head and thorax very closely and 

 not very finely punctured. First abdominal segment scarcely 

 longer than the second ; the apex of the dorsal segment rounded 

 and a little, but not very distinctly, narrower than the first 

 segment is long. Posterior tibise very distinctly serrate, tarsal 

 ungues bifid. Second abscissa of the radius longer than the 

 third ; both recurrent nervures received by the second cubital 

 cell, the first at two-fifths from the base, the second at about 

 nine-tenths or more from the base. Third cubital cell as long on 

 the radius as on the cubitus. 



Black, with long grey pubescence ; mandibles, clypeus, lower 

 portion of the inner mai^gin of the eyes, anterior coxae, trochanters 

 and femora beneath, and a line beneath the intermediate femora 

 yellow ; second and third abdominal segments and the base of 

 the fourth, tibiae, tarsi, hind femora, and intermediate femora 

 above ferruginous. Wings hyaline, nervures fusco-ferruginous, 

 stigma fuscous. 



Length 13 mm. 



Hah. Australia. 



A variety has the ferruginous colour much obscured. As 

 mentioned under that species, I believe this to be the male of 

 A. clypeata Sm , owing to the similarity of the structure of the 

 tar«al ungues, the position of the recurrent nervures, the length 

 of the second abscissa of the radius, and some similarity of 

 colour. 



44. Anthobosca errans Sm. 



Anthohosca errans Sm. Descr. new spec. Hymen, p. 174 

 (1879), 6. 



6 ■ Clypeus broadly truncate at the apex, not toothed ; an- 

 tennae short and stout. Pronotum shorter than the scutellum, 

 distinctly narrowed anteriorly ; scutellum and median segment 

 obscurely longitudinally carinated in the middle. First dorsal 

 segment longer than the apical breadth ; seventh dorsal segment 



