608 DR. R. C. L. PERKINS ON THE 
maculatis, pilis longis tenuibus sparsim vestitis. Long. 14- 
15 mm. 
This large hairy species with truncate clypeus cannot be 
confused with any other. There is a good female in the British 
Museum bearing a MS. label, ‘ Alastor australis,’ which is a 
‘smaller species with ferruginous tibie and tarsi, and otherwise 
different. There is a single male, deprived of the greater part 
of its antenne, and a very old abraded female in the Oxford 
Museum, which have the wings more infuscate or discoloured 
by age. 
Hab. W. Australia, 1 3, 2 2, as referred to above. 
71. PARALASTOR SUBOLORIS, Sp. n. 
Mas mari precedentis colore, vestitu et sculptura similis, sed 
statura multo minore, thorace toto nigro, abdominis fascia prima 
latissima, partem majorem segmenti, desuper aspecti, oecupante ; 
tarsis omnibus tibiarumque apicibus testaceis, facillime distin- 
guendus. ong. 10 mm. 
Apart from the above characters, the apical ventral segment is 
still broader, its minute puncturation is less dense, and the few 
slightly larger punctures are hardly noticeable, while the second 
ventral segment is much more finely punctured. A single 
female in the British Museum may belong to this species. It 
lacks the minute imterantennal spot of the male, but has two 
small prothoracic ones. Its second dorsal segment is very long 
and parallel-sided. It is in a dirty condition. 
Hab. W. Australia, 1 ¢ in the Oxford Museum. 
72. PARALASTOR OLORIS, sp. n. (PI. I. figs. 4 & 16.) 
Mas mari P. suboloris forma, sculptura, vestitu et colore 
simillimus, sed minor, antennarum articulo primo nigro, tibiis 
tarsisque ferrugineis facile distinguendus. 
A small narrow species, with the basal orange fascia deeply 
emarginate in front, the 2nd ventral segment with large sparse 
punctures, and the top of the truncation in the middle still more 
strongly raised and prominent than in the preceding species. 
The apical ventral segment is less wide, very dull from the 
extreme density of the sculpture, which is hardly to be distin- 
guished as puncturation, between the fine and sparse feeble 
punctures, that can be distinguished as such. The clothing of 
this segment consists of excessively short pubescence or tomentum, 
long, erect hairs being absent. ‘he second ventral segment is 
almost bare except just behind the tubercle, and the following 
ones are merely tomentose. Antenne 1] -jointed, with the three 
apical ones minute, as in P. suboloris. 
Hab. Australia, Swan River; 1 ¢ in the British Museum. 
73. PARALASTOR COMMUTATUS, sp. n. 
ae ¢ : 
©. Nigra, angustula, clypei macula basali magna, curvata, 
macula interantennali, duabus postocularibus minutis, pronote 
