614 DR. R. C. L. PERKINS ON THE 
incrassatum, margine ipso valde abrupte dejecto. Ale ubique 
fusco-nitid, parte costali saturatiore, basim versus subflavescente. 
Long. 9 mm. 
Hab. N.W. Australia, 8. Heywood I.; 1 2 in the British 
Museum. 
85. PARALASTOR DYSCRITIAS, Sp. n. 
2 precedenti forma, colore et picturatione simillima, sed 
abdominis segmento secundo ante incrassationem apicalem haud 
transversim depresso, bene distinguenda. Long. 9 mm. 
Differs slightly in colour from the preceding, as follows :— 
The markings of the head and abdomen tend to a more orange- 
red colour, and those behind the eyes do not extend beyond about 
the middle of the length of these organs. There is a roundish 
mesopleural spot beneath the tegule and only a very small one 
beneath this; the tegule are much redder, the legs paler, more 
fulvous. The apical dorsal segment is concolorous with the 
orange ones preceding it. The third antennal joint is nearly 
all red (only somewhat reddish in the other). These colour- 
differences may be quite inconstant, but in dyscritias the tegule 
are coarsely rugosely punctate over nearly the whole surface, 
smooth, shining, and sparsely punctured over a considerable area 
in anostreptus. The actual hind margin of the second segment is 
more abruptly depressed in the latter, and its incrassation is 
raised on the basal side from the general surface of the segment, 
whereas in dyscritias it is not at all defined in front from the 
rest of the surface. 
Hab. Australia, 1 2 in the British Museum, without locality. 
86. PARALASTOR XANTHOCHROMUS, sp. n. 
@. Nigra, clypeo utrinque, macula interantennali, antennarum 
articulo (ferrugineo) primo antice, maculis duabus elongatis 
postocularibus, duabusque in sinu oculorum sitis, duabus pro- 
notalibus, scutellaribus, mesopleuralibus et propodealibus flavis, 
sive aurantiaco-flavis. Abdominis segmentum primum late 
flavo-fasciatum, fascia profunde nigro-emarginata; secundum 
cum sequentibus fascia apicali ornatum. Pedes fulvescentes, 
partibus nonnullis flavescentibus. Long. 9 mm. 
Extremely close to the preceding in structure, but entirely 
different in appearance. The tegule have the same coarse 
puncturation. The clypeus is a little more strongly produced, 
and the front of the head rather more distinctly punctured, 
while the apical margin of the second dorsal segment of the abdo- 
men is less strongly and abruptly depressed. 
A single male that I possess, from Townsville, does not agree 
with either this or the preceding species, but is very like 
dyscritias 2 in its markings, which, however, are orange- 
coloured, not red, and there is a pair of large red spots towards 
the base of the second ventral segment, not connected with the 
