Australian and Tasmanian Cryptocephalides. 435 



flavous and the elytral punctures infuscate, whilst the 

 whole of its under-surface is apparently flavous. 



LOXOPLEURUS CASTOR, n. sp. 



(Plate XXVI, fig. 198.) 



(^ . Black, with or without a slight bluish gloss ; prothorax red ; 

 muzzle, second — fourth joints of antennae and base of tibite of a more 

 or less obscure red. 



Head densely punctate and strigose, median impression fairly dis- 

 tinct. Antennfe distinctly shorter than the body, second joint half 

 the length of third, third shorter than fifth. Prothorax moderately 

 densely and coarsely punctate ; disc with smaller and sparser punc- 

 tures than elsewhere ; obli(jue impressions deep but short ; margins 

 narrow. Scntellum triangular, base distinctly notched. Elytra 

 oblong, subhumeral lobes small ; densely and coarsely punctate, 

 punctures posteriorly becoming subseriate in arrangement, with 

 irregularly convex interstices. Apex of jjrosternmn obtusely 

 rounded. 



Length 3^ mm. 



5. Antennae just passing hind coxae; abdomen with fourth seg- 

 ment just traceable across middle and slightly encroached upon by 

 fovea. 



Length 4| mm. 



Hab. S. Australia ; W. Australia : Swan River 

 (Macleay Museum). 



In appearance, except that the apex of the elytra is 

 not red, similar to the male of Or. jocosus, Chp. 



LoXOPLEURUS POLLUX, n, sp. 



(Plate XXVI, fig. 199.) 



$ . 9 • In appearance very close to the preceding except that the 

 antennas are thinner, those of the ^ distinctly longer than the body, 

 and in the 9 extend fully to the apex of the second abdominal seg- 

 ment with the second joint less than half the lengtli of third and 

 third distinctly longer (instead of shorter) than fifth ; the punctures 

 of both head and elytra are denser, and the head is not distinctly 

 strigose. Colours are as in the preceding except that the antennae 

 are entirely dark and the coxae reddish. 



Length (^ 3^ ; ? 4| mm. 



Hah. Tasmania: Karoola (J!, 5'msow), Frankford, Hnon 

 River, Mt. Wellington {A. M. Lea) ; N. S. Wales : Mt. 

 Victoria {Lea). 



