82 RKVISION OF SYMPETES AND MELIUS, ETC., 



Notes . — S. rotnndatus Brenie. This species is very close to 

 S. Madeayi Pasc, ((S'. tricostellus White), but is separated by 

 evident and apparently constant difierences of size. Specimens 

 of both sexes from Perth measure 16-18 mm. long, while S. 

 tricostellus White, varies from 23 to 27 mm. long, and is found 

 near Albany. S. roiundaius is also more finely punctured, 

 especially on the underside of the margins, which are, out of all 

 proportion, very much more coarsely punctured in the larger 

 species. 



S. snhrugosus Breme. — Identified from Perth, wiiere it is 

 apparently common, exactly corresponding-to figure and descrip- 

 tion. This is possibly the insect referred to by Clmmpion(Trans. 

 Ent. Soc. Lond., 1894, p. 384) as differing h'o\n S. patelliformis 

 Pasc, "in having the prothorax more densely punctured and with 

 sharper anterior angles." If I have identified >S'. pateUiformis 

 correctly, they are very different, the latter having a smoother 

 surface, with the elytral costse subobsolete, while in S. suhrugosus 

 they are quite evident. 



S, unicarinatus Boisd., from Kangaroo Island. — I have seen 

 the type in the Paris Museum, but have never seen any other 

 specimen. 



S. orbicularis Breme. — I have five specimens under observa- 

 tion, which seem to belong to this species. Three are from 

 Kellerberrin, W.A., taken b}' Mr. Duboulay, junr. ; the other 

 two are labelled W.A., and are in the French Coll. of the Mel- 

 bourne Museum. Here, as in the case of Pterohelceus Guerinii 

 discussed by me (These Proceedings, 1909, p.l23), there is a 

 curious discrepancy between the dimensions in the description 

 and the dimensions of the plate given in de Breme's Monograph. 

 In the description, the dimensions are given as long. 19, larg. 

 16 mm., whereas the plate, if standardised by the length, gives 

 19x14 mm.; there is the further mistake in the reference to the 

 plates given in the description, tig. 3 being (as correctly stated on 

 the plate) S. rotimdatus, fig. 4, S. orbicularis. Following the plate, 

 fig. 4 as correct for the width, I have no hesitation in identifying 

 *S'. orbicularis as the Kellerberrin insect. In only one specimen 

 is the prolonged apex as distinct as in the plate. 



