622 NEW FOSSORIAL HYMENOPTERA, 



position of the recurrent nervures, both of which are situated 

 further from the base of the second cubital cell than in L. 

 michaelseni, in the somewhat shorter third abscissa of the radius, 

 and in the somewhat less opaque head and thorax, which are 

 scarcely more opaque than the abdomen. The ocelli are placed 

 in an equilateral triangle, as in the typical form, but the posterior 

 pair are only a very little further from each other than from the 

 eyes, not half as far again, as in the typical form. The median 

 segment is rather longer in subsp. tasmanica. 



Hab. — Eaglehawk Neck, S.E. Tasmania; February, 1913, 4£. 



I have not seen the typical form, which is from Shark Bay, 

 W. A., and it is quite possible that subsp. tasmanica may prove to 

 be a distinct species. 



Subfamily Pemphredonins. 



Spilomena hobartia, sp.n. 



9. Nigra ; mandibulis, antennis, pedibusque testaceis ; alis 

 hyalinis, venis nigris. Long. 5 mm. 



Q. Mandibles bidentate at the apex, not very stout; clypeus 

 moderately convex, with a low carina from the base to the middle. 

 Antennae shorter than the head; the flagellum gradually thickened 

 towards the apex, rather more than twice as long as the scape. 

 Eyes convergent towards the apex, separated on the vertex by a 

 distance equal to about twice the length of the scape, the pos- 

 terior ocelli nearly twice as far from the eyes as from each other 

 and as far from the posterior margin of the head as from the 

 eyes. Cheeks as broad as the eyes, which are elongate-oval and 

 touch the base of the mandibles. Head a little broader than the 

 thorax, a little longer than broad, the hind margin widely 

 emarginate, opaque, with a frontal sulcus from the anterior 

 ocellus to the base of the clypeus. Pronotum depressed below 

 the mesonotum, thorax opaque, minutely punctured. Median 

 segment finely reticulate; the basal area short, broadly rounded 

 and irregularly longitudinally striated; the sides of the segment 

 reticulate; the posterior truncation vertical, minutely punctured, 

 with a median sulcus. Abdomen not petiolate, no longer than 

 the thorax and median segment combined, shining and minutely 



