BY A. RAFFRAY. 153 



9. Antennarum articulis 9 octo vix dimidio longiori et paulo 

 crassiori, 10 multo majori, ohconico-truncato, latitudine sua paulo 

 longiori, 1 1 ovato, basi truncate Elytrorum margine postica 

 recte truncata. Metasternum late sed parum profunde sulcatum. 

 Femoribus omnibus leviter incrassatis. Long. 2-00-2-10 mm. 



I have the types of Dr. Schaufuss (£$) from Sydney and Clyde 

 River, N.S.W. ; and I have received it from Mr. Lea from Tweed 

 River, N\S.W., under the name of hortensis, King. I do not 

 think, however, that it is hortensis, as the Rev. R. L. King would 

 have certainly mentioned the swollen intermediate femora of the 

 g if he had had a specimen. This sex will he at once recognised, 

 but I confess that I can hardly find any difference between the 

 females oiflavipes, Schfs., and what I consider as being hortensis, 

 King. Tt is not uncommon to find that in Bryaxis, Rybaxis and 

 Reichenbachia it is practically impossible to discriminate the 9 ur 

 two closely allied species of which the £'s are otherwise very 

 different. 



Rybaxis hortensis, King. 



Trans. Ent. Soc. N.S.W. i. 1863, p. 47. 



I do not possess any authenticated specimen of this species, 

 and the description of the Rev. R. L. King may apply to the 9 of 

 several species; but I have received from Mr. Lea a good number 

 of specimens which seem to me to be the true A J . hortensis, King. 



The 9 is practically similar to the 9 of R. flavipes, Schfs.; but 

 the antennae are more slender, more infuscated at the apex, and 

 the 9th joint is mure elongate. 



The ^ lias the anterior and intermediate tibia? thicker than in 

 the 9, but not swollen as xa. flavipes; the last three joints of the 

 antenna? are not so large: the posterior margin of the elytra is 

 straight; the metasternum has a broad and longitudinal furrow, 

 but is not prominent between the posterior coxae as is the case in 

 R. jiavipes; the ventral segments are not flattened; the inter- 

 mediate tibiae are not incised on the upper face, and the spur is 

 very different: it consists in a long spine obliquely inserted 

 inside, at a certain distance from the apex; this spur may vary to a 



