236 MEMOmS OF THE QUEENSLAND MUSEUM. 



Var. — A speeinieu, from AVollongong, possibly belongs to this species, but 

 has the elytral markings smaller and much less distinct, appearing as a rather 

 obscure spot on each shoulder. 



EUXESTUS PARKI Woll. 



Black; head, tips of prothorax, elytra, and under surface (except meta- 

 stemum) more or less obscurely castaneous; legs, antenna^ and palpi paler. 

 Glabrous. 



Head with rather dense and small, but sharply defined punctures ; a small 

 fovea on each side of clypeus. Antennae short; club large, slightly wider than 

 long. Prothorax not thrice as wide as the median length, base feebly bisinuate, 

 apex almost straight, margins very narrow; punctures rather less dense, but 

 "otherwise as on head. Elytra with outlines continuous with those of prothorax; 

 with feeble rows of small punctures ; interstices with punctures as on prothorax. 

 Abdomen with coxal lines inconspicuous. Length, 1-75-2 mm. 



JIab. — Queensland: Mulgrave River (H. Hacker) ; Cairns (A. M. Lea). 



]\lore evenly elliptic and slightly less convex than either of the preceding 

 species, and about one-fourth narrower in proportion ; at first glance it rCvSembles 

 several species of Paracymus and other small ITydrophilid?e. On several 

 specimens the elytra ar6 obscurely diluted with red about the extreme tips, but 

 on a few the red almost covers the apical third, although not sharply limited. 



A specimen from New Ireland (Edgar R. Waite) is a trifle larger than 

 Queensland specimens, but I can find no other distinctions. 



DIPLOCCELUS MAXIMUS sp. nov. 

 Blackish brown; legs, antennse, and palpi obscurely reddish. Moderately 

 clothed with short, depressed pubescence, becoming denser and paler on under 

 surface •. upper surface, in addition, with moderately long, erect, reddish setae. 



Head with fairly numerous moderate and small punctures; a deeply 

 impressed transverse line near base. Antennae rather short ; club three-jointed, 

 ai)ical joint about once and one-half the length of ninth or tenth. Protlwrax 

 about twice as wide as long, sides evenly rounded with margin thickened, hind 

 angles -rectangular, front angles acute and produced, rest of apex straight, each 

 side with three impressed lines, the outer continuous and within the thickened 

 margin, the next continuous, the other shallow in front, interrupted in middle, 

 and deep and wide at base, near base with a deeply impressed sinuous line, with 

 a short median projection ; punctures sharply defined and somewhat sparser 

 than on head, except on margins, where they are crowded. Elytra almost 

 parallel-,sided to near apex; with rows of fairly large, sub-oblong punctures, 

 becoming smaller and rounded towards suture and posteriorly; interstices each 

 with a row of distinct punctures, and with smaller ones scattered about. Length, 

 8-9 mm. 



Hah. — Queensland: Cairns district (H. Hacker and A. M. Lea). — Type, 

 1, 11.787 in South Australian Museum ; cotype, C/2076 in Queensland Museum. 



