522 MR. R. E. TURNER ON [May 12^ 



the posterior margin of tlie pronotum, the postscutellum, the apex 

 of the median segment, the apical margin of all the abdominal 

 segments, and the whole of the third golden yellow, short and 

 dense. Wings very pale flavo-hyaline, slightly clonded on the 

 costa and at the apex ; nervnres ferruginous. 



The first recurrent nervure is received by the first cubital cell 

 just beyond three-quarters from the base, the second by the second 

 cubital cell close to the base. The second cubital cell is extremely 

 short on the radial nervure, both transverse cubital nervnres being 

 strongly curved and convergent. As in Parcqnson, the true 

 second cubital cell is obsolete. 



Length 11 mm., exp. 18 mm. 



Hab. Mackay, Queensland {Ttirner). 



This species differs from A^dacojyhilus vespoides Sm. in the 

 shape of the first abdominal segment, which is much shorter and 

 broader, and also in the shape of the second cubital cell and the 

 position of the recurrent nervnres. I do not consider Aulaco- 

 philus of more than subgeneric value. The occurrence of species 

 in Australia is another instance of the relationship of the Hymeno- 

 pterous fauna of S. America and Australia. The present species, 

 shows most relationship to Pison in the auraUts group. 



Trypoxylon connexum, sp. n. 



$ . Clypeus broadly rounded anteriorly, broad and short, 

 densely clothed with short silvery pubescence. Antennae inserted 

 very near together, nearer to each other than to the eyes ; the 

 second joint of the flagellum nearly half as long again as the 

 third, the apical joint conical, scarcely longer than the penultimate 

 joint. Eyes separated on the vertex by a distance about one- 

 third greater than that separating them at the base of the 

 clypeus ; the posterior ocelli nearly twice as far from each other 

 as from the eyes, and further from the anterior ocellus ths^n fi-om 

 each other. The inner orbits of the eyes are clothed with silvery 

 pubescence as high as the deep and narrow emargination. The 

 anterior ocellus is surmounted by an elevated semicircular carina, 

 which is narrowly separated from the inner margin of the eyes and 

 reaches as low as the emargination, whence it is continued as a 

 V-shaped carina, much elevated at the apex and almost reaching 

 the base of the antennfe ; from the apex it is continued as a very 

 high carina between the antennae, terminating abi-uptly at the 

 base of the clypeus ; the space enclosed by the carina? is concave 

 and opaque ; the vertex subopaque, with an obscure longitudinal 

 carina between the posterior ocelli. Pronotum on a level with 

 the mesonotum, short and broadly, but slightly, emarginate 

 anteriorly, the anterior margin raised and thickened. Mesonotum 

 opaque and finely, but not very closely punctured ; the mesopleurse 

 with sparse silvery pubescence. Median segment slender, obliquely 

 truncate po.steriorly, transversely striated, the posterior surface 

 with a deep median sulcus; the triangular space at the base 

 slightly convex, transversely striated, and divided by a longi- 



