19 



ADEMOSYNE OBTUSA, sp. nov. 

 Plate 4, fig. 5. 



ELYTRON, 2.3 mm. long, 1 mm. wide Sculpture very clearly 

 marked, consisting of nine rather thick ridges, parallel except at 

 the extreme end. Shape, a rather wide bluntly rounded oval, the 

 posterior end rather obtuse. Convexity, considerable. 



TYPE : Specs. 9 and 96 (mould and cast) (Plate 4, fig. 5). 

 (B. D. Coll.) 



OBS. : Appears to be a very distinct species, the high con- 

 vexity, parallel ridges, and the difference of width separating it 

 from A. angusta. 



ADEMOSYNE OLLIFFI, Handlirsch. 

 Plate 1, figs. 3, 8. 



Pseudorrhynchophora Olliffi, Handlirsch. Die Fossilen Insekten, Leipzig, 1908. 

 Rhynchophorous beetle. Ebheridge and Olliff. Mem. Geol. Surv. N.S.W. 



Palaeontology, No. 7, Sydney, 1890. 



An examination of the genotype reveals peculiarities not 

 shown in the drawing of the cast by Eth. and Olliff,* and 

 there is nothing to warrant the original determination of this fossil 

 as a Rhynchophorous beetle. It is therefore retained provisionally 

 in Ademosyne, even though the elytron is rather small and narrow 

 for this genus. 



ELYTRON, 1.7 mm. long, 0.7 mm. wide. Sculpture, nine delicate 

 ridges with punctate or pitted furrows. Shape, a narrow oval, 

 the shoulder or base being round, the posterior end or apex obtusely 

 pointed. Convexity, rather low. 



TYPE : Spec. SI (Plate 1, fig. 3) (Simmonds Coll.). CO-TYPE :- 

 Spec. 35 (Plate 1, fig. 8) (B. D. Coll.). 



OBS. : The type specimen has not the straight suture shown in 

 the 'drawing referred to, the suture and the margin being almost 

 equally curved. Its narrow oval shape is a conspicuous character. 



ADEMOSYNE MAJOR, Handlirsch. 

 Plate 5, figs. 1, 6. 



Ademosyne major, Handlirsc-h. Die Fossilen Insekten, Leipzig, 1908. 

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

 tology, No. 7, Sydney, 1890. 



ELYTRON, 2.8 mm. long, 1 mm. wide. Sculpture, eight distinct 



* Loc. cit., Plate 2, fig. 5. 



