AUSTRALIAN FOSSORJAL WASPS. o , 



median segment combined, of almost even thickness throughout, 

 the interantennal prominence pointed at the apex. Head closely 

 punctured : thorax shining, very sparsely punctured. Median 

 segment rounded, shining, very minutely punctured, smooth at 

 the base. Abdomen fusiform, flattened, the third segment the 

 broadest ; hypopygium narrowly lingniform, without an apical 

 spine. Second abscissa of the radius equal to the third ; first 

 recurrent nervure received at two-thirds from the base of the 

 second cubital cell second just before one-quarter from the base 

 of the third cubital cell. 



5 . Head shining, with a few scattered punctures, without a 

 frontal sulcus, nearly twice as broad anteriorly as long, narrowed 

 posteriorly and rounded at the posterior angles, much broader 

 than the thorax. Pronotum narrow, without a median sulcus, a 

 little broader anteriorly than long, slightly narrowed posteriorly, 

 finely pimctured ; scutellum very small and narrow ; dorsal 

 surface of the median segment scarcely as long as the scutellum, 

 shining and sparsely punctured, the posterior truncation oblique. 

 First dorsal segment broadly depressed at the apex, the raised 

 portion broadly emarginate posteriorly ; second segment with two 

 strongly raised transverse carina? in addition to the less strongly 

 raised apical margin ; segments 3-5 with a raised area on each 

 side strongly curved. Pygidium lanceolate. Basal joint of 

 intermediate tarsi slender, not spinose. 



Hub. Yallingup, S.W. Australia ; November. S 2 in cop. 



Allied to A.pygmceus Turn, both in the shape of the clypeus and 

 hypopygium. These species are not very near typical Astheno- 

 thynnus, but seem to form a link between that genus and 

 Zeleboria. The female of pygmceus is unknown. The male of 

 the present species is less strongly punctured than pygmceus, has 

 a longer clypeus and a. shorter third cubital cell, in addition to 

 colour differences. A. deductor Turn, is also closely allied. 



AsTHEXOTHYXNUS LILLIPUTIAXUS, Sp. n. 



S • Niger; mandibulis basi, clypeo margine apicali angus- 

 tissime, linea obliqua utrinque inter antennas, pronoto marginibus 

 late interruptis, postscutello linea transversa, segmentisque 

 dorsalibus secundo, tertio quartoque macula utrinque albido- 

 tlavis ; alis hyalinis, venis nigris, stigmate bruneo-ferrugineo ; 

 hypopygio anguste lingiiiforme. 



$ . Nigra ; segmento dorsali secundo ferrugineo, transverse 

 bicarinato, margine apicali insuper refiexo ; pygidio pallide 

 ferrugineo ; segmentis dorsalibus apice anguste testaceis. 



Long., S 4-5 mm. ; $ 3 mm. 



S ■ Clypeus produced and narrowly truncate at the apex; 

 interantennal prominence not much developed, almost transverse 

 at the apex ; antenna? scarcely as long as the thorax and median 

 segment combined, the apical joints very feebly arcuate beneath. 

 Head and thorax very finely and closely punctured. Median 



