WASP-GENUS PARALASTOR. 613 
apparet, tantum 10-articulate, articulis 2 ultimis minutissimis. 
Long. circiter 7-7-5 mm. 
The colour of this little Ulee is variable. The colour of the 
whole front of the head is pale (the clypeus always yellow, but 
in other parts the yellow becomes partly or wholly orange), except 
that in the female the black of the vertex is produced down 
to the antenne in two broad stripes, which sometimes become 
reddish towards the antenne. In the male the black colour is 
prolonged downwards on each side for only a short distance, 
being arcuately emarginate just in front of the anterior ocellus. 
The posterior orbits are widely yellow or orange, and connected 
with this same colour of the anterior ones. Around the ocelli 
the vertex is black, but behind these may be either black or red. 
The pronotum, senile, and propodeum (except in the posterior 
concavity) are for the most part yellow or orange, the pronotum 
sometimes more brownish or reddish posteriorly. The meso- 
notum may be all black or nearly all red. ‘The second abdominal 
segment is more or less brown or reddish in front of the orange- 
yellow apical band, sometimes nearly entirely so. The basal 
segment is yellow or orange-yellow apically, shading into brown 
or reddish, black basally. The sides of the thorax may be black 
or red, with yellow markings. Legs all pale, usually fulvous, 
with bright yellow hnes on the tibiz and femora. 
_ Very closely allied to P. brunneus, but the edges of the lateral 
deflexed parts of the clypeus are not so sharply defined, and the 
colour is very different. 
T can Ce distinguish ten joints in the male antenne, and this 
character may be peculiar to the group. 
Hab. Port Darwin (Dodd). 
84. PARALASTOR ANOSTREPTUS, Sp. ND. 
@. Nigra, clypeo, antennarum articulis duabus  basalibus, 
orbitis anterioribus et posterioribus (haud interrupte), macula elon- 
gata mediofrontal, a clypeo fere ad ocellum anteriorem extensa, 
pronoto ex maxima parte, postscutello et scutello fere totis, 
maculis magnis propodei lateralibus, parte magna mesopleurali, 
fascia latissima segmenti abdominalis primi, fascia apicali, 
utrinque subdilatata, secundi, cum pedibus omnibus, refescen- 
tibus. Segmentum abdominis tertium et sequentia, plus minusve 
colorata, Tegule brunnescentes, plus minus testacee. Clypeus 
fortiter rugoso-punctatus, apice producto, parum lato, subfortiter 
emarginatus, partibus deflexis argenteo-pubescentibus, utrinque 
in parte apicali subcarinatus. Frons densissime 1ugoso-punctata, 
pilis brevissimis vestita. Thorax haud aut vix pilosus, ubique 
densissime punctatus, postscutello inermi, propodei lateribus 
argenteo-tomentosis. Abdominis sesmentum primum cam panuli- 
forme, sat longus, subdepressus, secundum densissime punc- 
tatum, ex majore parte longitudinis fere equaliter et fortiter 
convexim rotundatum, apicem suum versus fortiter transversim 
