153 



are suggestive of approximation to fulvolimhata, but the black 

 has nowhere a metallic gloss, the prothoracic punctures 

 although small are quite distinct, and the elytral punctures 

 are considerably smaller than on that species, especially pos- 

 teriorly. There are two specimens in the Macleay Museum, 

 labelled as from New South Wales. 



Rhyparida triangulifera, n. sp. 

 PI. vii., fig. 49. 



Flavo-castaneous ; palpi flavous, elytra with a large basal 

 blotch and a triangular post-median one, meso- and meta- 

 sternum (wholly or in parts) and legs (femora, except knees, 

 and claw-joints excepted) black. 



Head, with rather small and sparse punctures, more 

 sharply defined but not much larger on clypeus ; with a short, 

 deep, medio-frontal impression, touching the (rather ill- 

 defined) clypeal suture, and connected with the base by a 

 feebly elevated line. Eyes fairly large, prominent, and widely 

 separated. Vroiliorax across middle about twice the median 

 length, all angles armed ; with minute, scattered punctures. 

 Elytra suboblong, distinctly wider than prothorax ; with rows 

 of fairly large punctures, becoming much smaller posteriorly ; 

 interstices with sparse and minute punctures. Flanks of 

 prosternuvi striated about base and near coxae. Femora eden- 

 tate ; claws bifid. Length, 5f-6J mm. 



Hah. — Queensland: Cairns district (E. Allen and A. M. 

 Lea). Type, I. 3421. 



It will possibly be eventually found that this form repre- 

 sents but one of a trimorphic (perhaps polymorphic) species. 

 I cannot structurally distinguish it from maculicollis or 

 masfersi, and yet the markings of all three forms are quite 

 sharply defined, and although there are numerous forms of 

 each before me (^"^^ I have seen none with intermediate mark- 

 ings. '55) But in any case it seems desirable (as Blackburn 

 considered with masterd) that the present form should have a 

 name. The large basal blotch extends on each side to about 

 the sixth or seventh row of punctures, with the hind angles 

 acute ; the post-median triangle is of irregu.lar shape and 

 usually has a short sutural extension towards the basal blotch. 

 On two specimens it is obscurely connected with the basal 

 blotch along the suture : one of these specimens has a feeble 

 spot on each side of prothorax, the other has three conspicuous 

 ones, of which the median one is much larger than the others: 



(54) The majority of the specimens were taken by myself in the 

 Cairns district, but as I saw none in cop., no record was made at 

 the time. 



(55) In limhatipennis and herhacea there are at least two 

 sharply defined forms, and in dimidiafa at least three. 



