ON COLEOPTEEA, MOSTLY FROM QUEENSLAND. 
339 
and tenth about as long, of the intervening ones longer. Prothorax, along middle, 
slightly longer than wide, apex triangularly produced, sides slightly notched at 
basal third ; seven-areolate, the frontal areolets granulate-punctate. Elytra narrow, 
parallel-sided to near apex , with double rows of punctures mostly even, the alternate 
interstices elevated. Abdomen deeply notched. Length, 7-10 mm. 
$ . Differs in having the antennae strongly serrated only, and abdomen not 
notched. 
Queensland : National Park, in December (H. Hacker). Type, in Queensland 
Museum ; cotype, in South Australian Museum. 
Of the three frontal carinse on the pronotum the median one is continuous 
to the apex, the others terminate some distance before it, except that the one on 
the right, on one specimen only, is continuous. On 31. brisbanensis and toqatus 
(which it greatly resembles) the prothorax is more transverse, not conspicuously 
produced in the middle, the carinae completely margin the areolets, and the an teniae 
of the male are strongly serrated only. 31. batesi is a much larger species, with very 
different prothorax. A line drawn across the prothorax, connecting the front of 
the sides, would cut off a triangle rather more than one-third the length (along the 
middle) of the segment. 
Metriorrhynehus pectinicornis n. sp. 
(J. Black or blackish and pale brick-red. 
Rostrum very short (practically absent). Antennae moderately long, strongly 
pectinated. Prothorax moderately transverse, apex widely triangularly produced, 
sides slightly notched in middle, hind angles slightly produced outwards, regularly 
seven-areolate, except that the submedian costae are not quite continuous to apex. 
Elytra narrow ; with regular double rows of punctures, the alternate interstices 
moderately elevated. Abdomen deeply notched. Length, S-5-9-5 mm. 
Queensland : Meringa, in January (F. H. Taylor). Type, in National Museum ; 
cotype, in South Australian Museum. 
In general appearance like 31. posticalis, and some specimens of 31. cinctus , 
but all prothoracic areolets well defined, alternate interstices of elytra more 
conspicuously elevated, and not quite so much of apex black. The antennae are 
very different from those of the males of 31. crassipes , trickorerus , and eucerus ; the 
rostrum is much longer on 31. apical is , abdominalis , mdaspis , and dcnlipes. 
31. composifus has strongly serrated antenna? in the male (the only sex known), but 
not pectinated. On the type the pale parts are the prothorax, scuteUum, basal four- 
fifths of elytra, sterna, coxae, and basal third of femora ; on the second specimen 
the metastemum is deeply infuscated, but elsewhere the colours are the same. On 
the type the produced parts of the third and tenth joints of antennae are slightly 
longer than their supports, on the intervening joints they arc much longer, on several 
of them almost twice as long ; on the second specimen they are shorter, although 
decidedly pectinate. 
A specimen from North Australia (Groote Eylandt, N. B. Tindale) is much 
as the second specimen from Queensland, but is less brightly coloured, and a greater 
portion of each femur is dark. 
