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MEMOIRS OF THE QUEENSLAND MUSEUM. 
Queensland : National Park, in December (H. Hacker). Type, in Queensland 
Museum ; cotype, in South Australian Museum. 
Another species with remarkable hind tibiae in the male. On the preceding 
one the flap is considerably wider, notched at its apex and commences nearer the 
apex. On M. tibialis the projection is partly free and commences nearer the base 
than apex, but is more median and of different shape ; that species is also considerably 
smaller, and has the elytra widely tipped with black. On M. dentipes (which differs 
considerably in colours also) the projection on the hind tibiae is nearer the apex than 
base, and is a dilated part of the lower surface ; on the present species it is a flap, 
and is nearer the base than the apex. Of the species with simple hind tibiae in the 
male which resemble it in colour. M . lateralis has a long rostrum, M. variipennis 
and crypt ole ucus are wider with the rostrum longer, and M . irregularis has a some- 
what longer rostrum. 
The great superficial resemblances between many species of Metriorrhynchus , 
and allied genera, render it desirable that every specimen should be critically 
examined. I know of no other subfamily of beetles in which species may be readily 
separated by profound differences of sculpture and which yet so strongly resemble 
each other that they could be easily misidentified. 
Metriorrhynchus mollicollis n. sp. 
cJ. Black, elytra brick-red. 
Rostrum absent. Antennae rather long, joints pectinate or subramose. 
Froth orax distinctly transverse, sides almost parallel throughout ; regularly seven- 
areolate. Elytra narrow, parallel -sided to near apex ; with regular double rows 
of punctures, the alternate interstices moderately elevated. Abdomen with a deep 
notch. Length, 10-11 mm. 
Queensland : National Park, in December (H. Hacker). New South Wales : 
Jenolan (J. C. Wiburd). Type, in Queensland Museum ; cotype, in South Australian 
Museum. 
Strikingly close in appearance to the typical form of M. rafipennis. The 
specimen from Jenolan has been known to me for many years, and there is another, 
from the Upper Williams River, in the collection of Mr. F. Erasmus Wilson ; I 
previously considered they were possibly aberrant specimens of rufipennis , but the 
examination of four fresh specimens, taken by Mr. Hacker, renders it certain that 
the species is a distinct one. It differs from that species in having the produced 
parts of the antennae longer (these by themselves would not be conclusive, and the 
Jenolan specimen has them shorter than the others), the rostrum even shorter 
(practically absent) but in particular by the prothorax ; this has a velvety appearance, 
is distinctly shorter, more parallel-sided, and the hind angles almost rectangular, 
the mediofrontal areolets are wider, and the mediobasal one less dilated at its apical 
third. The produced parts of the third and tenth joints of the antennae of the 
Queensland specimen are slightly shorter than the outer edge of their supporting 
joints, but on the fourth to ninth they are longer, the eleventh joint is about twice 
the length of the outer edge of the tenth. 
Metriorrhynchus longicollis n. sp. 
rj. Black, basal two-thirds or three-fourths of elytra brick-red. 
Rostrum extremely short (practically absent). Antennae rather long, third- 
tenth joints pectinate, produced part of third shorter than its support, of fourth 
