508 



is stouter and has a feebly denned median line, causing it to 

 appear at first like two joints very closely applied together; 

 the female is also slightly more dilated posteriorly, and the 

 pygidium is more convex. 



HAPLONYCHA 1KIDIPENN1S, n. sp. 



Black and brilliantly iridescent, the elytra especially so ; 

 parts of antennae, of tarsi, and tips of elytra diluted with, red. 

 Sterna and legs with rather dense and somewhat golden hair; 

 lateral gutters of pronotum with sparse hairs; membranous 

 fringe of elytra extremely short; pygidium with sparse and 

 very short, indistinct setae. 



Antennae with third and fourth joints equal and rather 

 short, seventh-ninth forming a club. Pygidium moderately 

 convex, with punctures of two kinds : very small ones almost 

 evenly distributed, and larger (but not very large) ones, 

 crowded at the base, and becoming sparse towards apex. 

 Length, 15-16 mm. 



Hab. — South Australia: Karoonda to Peebinga (G. E. H. 

 Wright), Tintinara. Type, I. 4627. 



On dissection the penultimate joint of the maxillary palpi 

 is seen to be slightly longer than the antepenultimate, so as 

 the derm is brilliantly iridescent I have no hesitation in 

 referring it to Group 4 ; in general appearance it is very close 

 to pulchella (with which it would be associated in that group), 

 but it is even more brilliantly iridescent, and may be at once 

 distinguished by the pygidium ; on that species that part is 

 densely clothed with short, stiff setae, placed at right angles 

 to the derm ; on the present species its clothing is sparse, not 

 supported by granules, and more or less closely applied to the 

 surface. Structurally it is exactly as described in the preceding 

 species, except for its antennae and pygidium, and that the 

 elytral punctures are somewhat larger and more rugose. The 

 three specimens before me appear to be of one sex. 



Group 5. 

 Haplonycha semiopaca, n. sp. 



Dark reddish-brown; most of elytra of a shining 

 castaneous-red, antennae paler. Sterna and legs with dense 

 pale hairs, lateral gutters of pronotum with a few straggling 

 hairs ; fringes of elytra abnormal ; pygidium with rather 

 short, dense, stiff setae on small granules. 



Head with dense punctures of moderate size, but larger 

 on convex portion of clypeus than elsewhere ; front face of 

 clypeus with dense, setiferous punctures, but confined to a 

 single row across middle. Antennae nine- jointed, the club 



