674 A REVISION OP AUSTRALIAN SPECIES OF GENUS CEUCERIS, 



Cerceris inexpectata Turn. 



Cerceris inexpectata Turn., Proc. Zool. Soc. 1908, p.469, Pl.xxvi., 

 fig.5,9. 



9. Nigra; mandibulis, clypeo, fronte, postscutello, segmento 

 mediano macula magna utrinque, petiole utrinque, segmentisque 

 abdominalibus secundo quintoque macula basali nigra, flavis; 

 antennis, vertice, margine exteriore oculorum, mesonoto postice, 

 pronoto utrinque, scutello pedibusque sordide ferrugineis; clypeo 

 apice late truncate, subconvexo; segmento mediano area basali 

 subnitida, impunctata ; mesopleuris tumidis, subtuberculatis; 

 petiolo longitudine paullo latiore; alis subhyalinis, apice infuscatis. 



(J. Clypeo latitudine multo longiore, apice subemarginato; seg- 

 mento mediano area basali in aiigulis striata; petiolo latitudine 

 sesqui longiore, mesopleuris baud subtuberculatis; vertice nigro, 

 linea obliqua utrinque flava, genis, scutello, segmentisque abdo- 

 minalibus 4-6 fascia apicali flava, mesonoto nigro, segmento 

 secundo abdominal! dimidio apicali tertioque fere toto soi'dide 

 ferrugineis. 



Q. Deeply but not very closely punctured, more closely on the 

 third and fourth dorsal segments and on the mesopleurse than 

 elsewhere; pygidial area gradually narrowed from the base, more 

 than twice as broad at the base as at the apex, about twice as 

 Ion" as the greatest breadth, the surface granulate. Mandibles 

 with a broad triangular tooth on the middle of the inner margin. 



Hab. — Mackay, Q. 



Cerceris venusta Sm. 



Cerceris vemista Sm., Ann. Mag. Nat. Hist.(4), xii, p.413, 1873,$. 

 Q. Nigra; mandibulis, clypeo, fronte, scapo subtus, margine 

 exteriore oculorum, vertice linea obliqua utrinque, pronoto, 

 tegulis, scutello, postscutello, segmento mediano utrinque, seg- 

 mentis abdominalibus primo, secundo, quarto, quintoque, flavis; 

 seo-mento primo basi nigro; secundo in medio rufo-testaceo, 

 pedibus testaceis, flavo-variegatis, flagello subtus testaceo; alis 

 hyalinis, cellula radiali infuscata; clypeo apice porrecto, emar- 

 tfinato, angulis obtuse dentatis; mesopleuris baud tuberculatis; 



