154 AUSTRALIAN PSELAPHIDM, 



certain extent. In New South Wales specimens from Tamworth, 

 Tweed River, Clarence River and Windsor it is thick at the top 

 and bears some short seta?. In other specimens from Bunbury 

 and Swan River, W.A., the spur is thick but sharpened at the 

 top, and the antenna? are more largely infuscated. I have a £ 

 from Cape York, N.Q., which hardly differs except that the 

 antenna? are but very little infuscated and the median fovea of 

 the prothorax is hardly visible. It is quite possible that R. 

 flavipes, Schfs., may be a variety (£) of hortensis, King, larger and 

 more developed; such is the case for the European species R. 

 sanguined, Linn., and its variety R. laminata, Mots.; I have not 

 at my disposal a sufficient number of flavipes and hortensis from 

 different localities to settle the question. 



Rybaxis recta, Sharp. 



9. Bryaxis recta, Sharp, Trans. Ent. Soc. Lond. 1874, p. 496; 

 $. B. bison, Schfs., Nunq. Otios. iii. 1880, p. 499. 



(Plate x., fig. 42.) 



I have the types of both Dr. D. Sharp and Dr. W. Schaufuss, 

 and there cannot be any doubt as to these two species being 

 synonymous. The striking characters common to both sexes are: 

 the colouration of the antenna' which is ferrugineous from the 

 first to the 8th joint, the 9th and 10th are piceous, and the last 

 one is pale testaceous; the dorsal stria is not so long as in R. 

 flavipes and R. hortensis, and not quite so straight; the carinulea 

 of the first dorsal segment are exceedingly short and more distant 

 from each other than in hortensis. In the £ the median frontal 

 fovea is large and deep, and the epistoma is more convex and 

 mure prominent than usual. 



The £ must have a mure complete description : — 

 Caput latitudine sua vix longius, fronte convexum, rotundatum, 

 confertim punctatum et subopacum, inter oculos foveis 

 duabus magnis, epist ornate magno, convexo, prominenti, rugoso- 

 punctato. Antenine crassie. articulis duobus primis maximis et 

 irregularibus, 1 basi constricto, apice inflato, convexo, recte 



