292 



Myllocerus armipectus, n. sp. 



Black, legs obscurely reddish. Clothed with bright-green 

 scales, variegated with feeble brownish spots. Elytra with an 

 indistinct row of depressed setae on each interstice. 



Head rather short and wide, with a narrow inter-ocular 

 impression. Eyes fairly large. Rostrum slightly wider than 

 long, sides gently incurved to middle, base and .apex equal, 

 median carina narrow and distinct, the sublateral ones 

 partially concealed. Antennas moderately long; two basal- 

 joints of funicle subequal in length. Prothorax twice as wide 

 as the median length, apex lightly incurved to middle, sides 

 rounded, gently increasing in width from apex to beyond 

 middle, and then decreasing to base, which is distinctly wider 

 than apex; with fairly large, partially concealed punctures, 

 and remnants of a median carina. Elytra distinctly wider 

 than prothorax, subparallel-sided to near apex; with regular 

 rows of fairly large, partially concealed punctures. Pro- 

 sternum with a rather small but acutely conical tubercle 

 projecting backwards on to mesosternum. Femora stout, 

 edentate. Length, 5 -5 J mm. 



Hab. — Northern Territory : Darwin (G. F. Hill's 

 No. 293). 



Readily distinguished from all others of the genus by the 

 prosternal tubercle. Inter coxalis and prosternalis each has 

 an acute ridge there, but as the ridge is not conspicuously 

 elevated posteriorly it has not the appearance of a tubercle. 

 Those species also are different in many other respects. The 

 prothorax of the type has a short vague dark stripe on each 

 side and traces of another on the middle. A second specimen 

 is rather badly abraded, but traces of the stripes are present. 



Synomus. 



The typical species (ceplialotes) of this genus was 

 described as having ovate elytra no wider at the base than 

 the prothorax, and with erect setae. The clothing was 

 apparently not variegated. The species appears to be un- 

 known to Australian workers, but I have previously named 

 a second one (ceruginosus), and have now to name two others. 

 Of these ovipennis has strongly rounded and highly convex 

 elytra, very different to those of any other of the Australian 

 allies of Myllocerus; most of its scales are greyish, but with con- 

 spicuous black markings. The other, inconspicuus, in out- 

 lines is nearer ceruginostis, but is also clothed with greyish 

 scales; it is quite apterous, as probably are all species of the 

 genus. Myllocerus subapterus is a connecting link between 

 it and Myllocerus. 



