WASP-GENUS PARALASTOR, 597 
47, PARALASTOR SANGUINEUS Sauss. 
I examined the type of this species in the British Museum, but 
unfortunately have not been able to make an actual comparison 
between it and the two preceding, one or other of which may be 
only a variety of sanguineus. It has the apex of the clypeus much 
more widely black, in the preceding only the actual margin being 
black. From a rough sketch that I made, it is also, possibly, more 
produced. The red apical band of the second dorsal segment 
of the abdomen is produced further towards the base on each side. 
These colour-characters, however, would of themselves be in- 
sufficient for specific distinction. I did not observe the hind 
angles of the second dorsal segment. 
It certainly appears probable that one or other of these males 
belongs to the female described as vulneratus Sauss.. but the very 
different clypeus forbids us to associate them without further 
evidence. It is usual for the male clypeus to be more deeply 
emarginate than that of the female, whereas in the males and 
females in question, the clypeus of the female is extraordinarily 
deeply emarginate, far more strongly than in the male. Never- 
theless, I suspect that sanguinews Sauss. and vulneratus Sauss. 
are sexes of one species. 
Hab. Australia (British Museum). 
48, PARALASTOR ARGYRIAS, Sp. n. 
3 colore P. sanguineo Sauss., congruens, sed clypeo toto flavo, 
antennarum articulo primo antice flavescente, maculisque pro- 
notalibus magnis, fasciam vix interruptam, utrinque dilatatam, 
formantibus. Ale hyaline, costali parte infuscata. Clypeus fere 
zqualiter conspicue convexus, parum profunde et fere equaliter 
punctatus, puncturatione interstitiali crebra, ubique argenteo- 
pubescens. Oculorum sinus utrinque flavo-notatus. Anguli pro- 
notales parum distincti. Mesonotum dense punctatum, scutello 
inermi, propodeo brevi et rotundato, tegulis grossissime punctatis. 
Abdominis Segmentum primum dense, distincte punctatum, 
lateribus suis, cum lateribus basalis partis secundi, conspicue 
argenteo-tomentosis. Segmentum secundum dorsale latera versus 
copiose, sed haud densissime, punctatum, basali parte fortiter 
supra segmentum primum convexim elevata, fascia apicali utrinque 
fere ad medium segmentum attingente, antice emarginata; seg- 
mentum 2 ventrale, post sulcum transversum, fortiter abrupte 
elevatum, post elevationem summam depressum, puncturatione 
distincta, haud densa; segmentum septimum pubescentia decum- 
bente vestitum, pilis longis erectis carens. Long. circiter 9 mm. 
A very distinct species structurally, but resembling P. ewgonias 
in colour and pattern, except for the yellow front of the scape 
and the much greater development of the pronotal markings. 
Hab. New South Wales, Wagga (Froggatt), 1 3g. 
