342 
MEMOIBS OF THE QUEENSLAND MUSEUM. 
of this species. H. inflatus has antennae entirely dark, third joint of male much 
smaller, and fifth differently formed, the elytra also have about half of the apex 
dark and legs (except an obscure portion of the front ones) entirely blackish. 
H. microcerus has the tenth and eleventh joints of antennae also distorted. 
Heteromastix terminalis n. sp. 
(J. Flavous, apical fourth of elytra and abdomen infuscated. 
Head gently convex and with two small impressions between eyes. Antennae 
not very long, third joint slightly longer than fourth, the others to ninth subequal, 
tenth dilated to apex, one side of which is slightly notched, eleventh distorted and 
about as long as ninth and tenth combined. Prothorax almost twice as wide as 
long, sides evenly elevated and somewhat oblique. Elytra parallel-sided ; with 
dense and fine rugulose punctures. Abdomen with a deep apical notch. Length, 
3 *5-4*0 mm. 
Queensland ; Cairns district (E. P. Dodd). Type, in South Australian Museum. 
From H. melanocephalus and luridicollis differs in being narrower, less of 
elytra dark, head and antennae entirely pale, and tenth -eleventh joints of antennae 
different. The eleventh joint is incurved at the middle, with the apical portion 
narrower and slightly longer than the basal portion ; although this is not very wide, 
its base is closely applied to the tenth, but connected with it only on one side. 
Heteromastix apicicornis n. sp. 
Black, prothorax (including prosternum), scutellum, and front coxae 
flavous, knees obscurely diluted with red. 
Head with a shallow, interocular depression. Antennae rather long and 
moderately stout, tenth and eleventh joints distorted. Prothorax more than twice 
as wide as long, sides evenly elevated and widest close to apex. Elytra parallel- 
sided ; with crowded and small rugulose punctures. Abdominal notch distinct. 
Length, 6*5 mm. 
New South Wales : Dorrigo (W. Heron). Type (unique), in South Australian 
Museum. 
A rather large species of the genus, with the black legs and antennae of 
H. laticollis , but the two apical joints of antennae very different : the tenth joint 
is about as long as the ninth, but dilated to apex, curved inwards on the outer side, 
outvrards on the inner side ; the eleventh joint is about twice the length of the tenth, 
and varies in appearance with every point of view ; its inner side is incurved between 
the middle and base, the base appears wide from some directions, very narrow from 
others ; it has a spine directed inwards on the inner side and another directed 
backwards on the outer side, both being sometimes concealed ; from some directions 
the basal half appears to be scooped out on one side. 
Heteromastix undecimus n. sp. 
c?. Black and flavous. 
Head shallowly depressed between eyes. Antennae not very long, third joint 
slightly longer than fourth, the others feebly decreasing in width to tenth, which 
is feebly notched on one side of apex, eleventh slightly longer than three preceding- 
joints combined, subcylindrical to near apex, when it is suddenly narrowed and 
