20 



and finely punctate striae, the punctures being at regular intervals 

 between the base and the apex. Convexity, moderately high. 



TYPE : Spec. S2 (Plate 5, fig. 6) (Simmonds Coll.). CO-TYPES :- 

 Specs. 36a and 366 (mould and cast) (Plate 5, fig. 1) ; spec. 10 (cast) 

 and spec. 44 (cast). (B. D. Coll.) 



OBS. : The suture is not straight as shown by Eth. and Olliff.* 

 but has a decided curve towards the apex. The type specimen also 

 shows sculpture lines on the prothorax, and impressions which 

 appear to be under the elytra. 



ADEMOSYNE MINOR, Handlirsch. 

 Plate 5, fig. 3. 



Ademosyne minor, Handlirsch. Die Fossilen Insekten, Leipzig, 1908. 

 Hydrophilidce ? Etheiidge and Olliff, Mem. Geol. Surv. N.S.W. Palaeon- 

 tology, No. 7, Sydney, 1890. 



ELYTRON, 2 mm. long, 0.8 mm. wide. Sculpture consists of 

 eight lines, without other ornamentation. Shape, a somewhat 

 narrow oval, with apex rounded, and suture slightly curved. Con- 

 vexity, moderately high. 



TYPE: Spec. S3 (Simmonds Coll.). CO-TYPE: Specs. 38a 

 and 386 (mould and cast) (Plate 5, fig. 3) ; spec. 39 (cast). (B. D. Coll.) 



OBS. : Its oval shape is somewhat like that of A. australiensis 

 but its size approaches that of A. Olliffi. The drawing by Eth. and 

 Olliff t is of the mould, showing the external sculpture. 



ADEMOSYNE CONGENER, sp. nov. 

 Plate 2, fig. 8. 



ELYTRON, 4 mm. long, 2-1 mm. wide. Sculpture consists of 

 nine finely punctate strise. Shape, apex obtusely pointed, margin 

 and suture both curved with a gentle taper to the apex. Convexity 

 moderately high. 



TYPE : Spec. 40 (cast) (Plate 2, fig. 8). CO-TYPE : Ala, 

 416 (counterpart), 42 (cast). (B. D. Coll.) 



OBS. : Somewhat like A. australiensis, but the posterior half 

 is more tapering, the form larger, and the sculpture less pronounced. 



* Loc. cit., Plate 2, fig. 6. 

 t Loc. cit., Plate 2, fig 



