Austnilian Species oj the Genus Scolia. 109 



liypopyKinm in the ninlo me rather h)n;,'cr in Port Darwin 

 s|ntiniens tlinn in the typical forms, but s])eeiinen.s IfDni tli« 

 east coast arc not quito constant in tliis respect. S. nicola- 

 (loiiiij I). '[\, = t(erl<'ej).tj Kirhy, must I tliink stand as another 

 race (listinj;uislicil by the abs nco of all yellow markings. 

 'I'he forms will stand : — 



1. Sci'Iia {TriscoUa) frontalis^ Sauss., s>i. fronUiVis. SaU33. 



Eastern Australia. 



2. Scolia {TriscoUa) frontalis, Sauss., sf. ohscuriceps^ 



St. nov. l*ort Darwin. 



3. Scolia (TriscoUa) frontalis, Sauss., st. tiicolaJonii, D. T. 



South-westorn Australia. 



Subgenus Discolia, Sauss. et Sich. 

 1. Scolit soror, Sni. 



Srolia soror, Sin. Cat. Ilyni. li. M. iii. p. 90. n. oO (18.Vi). 



iScolia ej/anipennii, Lepel. Hist. nut. Insect. Ilyui. iii. p. 524 (1845) 



(uec Fttbr.). 

 Scolia viritlipennis, Sui. Cat. IIvui. B. M. iii. p. 9G. n. 5J (1855). 



JIab. Eastern Australia, Adelaide to Cairns. 



2. Scolia pt/gmaa, Sauss. 



Scolia pygmasa, Sauss. Ann. Soc. Eutom. France, (3) vi. p. 217 

 (185«j, J. 



Hab. South-western Australia. 



This may prove to be a geograi)liieal race of soror, Sm., 

 but the sculpture differs. The tubercle at the base ot the 

 second ventral segment of soror does not seem to be a good 

 distingui.'lung character, as it is not present in any specimen 

 1 have seen. Probably Saussure contused two species i\nder 

 soror. In the present species the pubescence is cinereous, 

 not black as in soror. 



3. Scolia verticalisj Fabr. 



Scolia vertically, Fabr. Syst. ent. p. 356 (1775). 



Scolia tuberculiventris, Sauss. M^m. Soc. pl>y.s. ct hist. nat. Genive, xiv. 

 p. 47(1854), d. 



Hub. The whole of the southern and eastern portions of 

 Australia from l*erth to Cooktown; i)iobably also the north 

 and north-west. 



The type is a male and is an unusually large specimen 

 and has the spines of the liypopyglmn much longer tlian i."* 

 usual in this species. But comparison of a long seiies shows 



