495 



of victoriense). The elytra and legs are slightly paler than 

 the prothorax, the tip is obscurely paler than the rest 

 of the abdomen, but on some specimens the tip of each 

 segment is obscurely diluted with red. The pubescence of the 

 upper-surface, although short, is very conspicuous from the 

 sides. The prothoracic punctures are not at all seriate in 

 arrangement. The front femora are ridged along the middle 

 of the basal half, and the sudden termination of the ridge 

 causes a dentiform appearance (very conspicuous from some 

 directions). 



Variety (?). Eight specimens from North-western 

 Australia (Derby and Fortescue River — W. D. Dodd) may 

 represent a variety but probably a distinct species — they 

 differ from the typical form in being slightly narrower, the 

 prothorax and elytra almost uniformly reddish-oastaneous, 

 and the antennae shorter; on the typical form all the joints 

 of the antennae are longer than wide, but on these the ninth 

 and tenth are slightly wider than long ; one of the Derby 

 specimens has the prothorax, elytra, and abdomen of an 

 almost uniform shade of castaneous, the legs are not much 

 paler, and the head is but lightly infuscated. 



Lathrobium basipenne, n. sp. 



Black; elytra bright reddish-castaneous, the base black 

 or deeply infuscated, tip of abdomen obscurely diluted with 

 red, appendages flavous. Upper-surface, except of abdomen, 

 almost glabrous. Length, 6J; to apex of elytra, 4J mm. 



Hah. — South Australia: Oodnadatta (Blackburn's 

 collection). Type, I. 8205. 



Structurally close to the preceding species, but larger, 

 prothorax black, elytra differently coloured, and punctures 

 rather more distinct. In general appearance it is close to 

 notaticolle, but is readily distinguished therefrom by the 

 prothoracic punctures being not at all seriate in arrangement. 

 On a specimen from Solarno W the basal fourth of the elytra 

 (rather more about the suture) is of a shining black, and the 

 antennae are somewhat darker than the legs, on the type the 

 basal portion of the elytra is rather deeply infuscated, and 

 the antennae are no darker than the legs. As viewed from 

 the side the upper part of the head (except in front of the 

 eyes) is entirely glabrous, and on the elytra the pubescence 

 is sparse and lateral. 



SILPHIDAE. 



Dietta sperata, Sharp. Ooldea. 



(7) I cannot find Solarno in any list of Australian towns or 

 localities. 



