BY THOMAS G. SLOANE. 635 



Group Perigonides. 



The group Perigonides contains only the genus Perigona accord- 

 ing to Horn; three AustraUan species are known to nie. 



Genus Perigona. 



Siltojna, Castehi., Trans. Ptoy. Soc. Vict. viii. 1868, p. 127. 



I tabulate the Australian species as under : — 



Elytra unicolorous (yellow) P. tricolor, Casteln. 



Elytra bicolorous. 



Elytra with base (widely), suture, and margin (narrowly) reddish, rest of 



surface black P. rujilabris, Macl. 



Elytra pale testaceous, a narrow black strip along (but not touching) 

 margin of apical curve P. ajpicalis, SI. 



Perigona tricolor, Castelnai]^. 



Siltopia tricolor, Casteln., /.c, p. 127. 



Castelnau referred his Siltopia tricolor to the Morionini , but 

 Chaudoir, in his Monograph of the Morionides,'^ excluded it from 

 that tribe as being a species of Perigona. I have a specimen 

 from Wiseman's Ferry on the Hawkesbury River, N.S.W., which 

 I have compared with the specimen of Siltopia tricolor, Casteln., 

 in the Howitt Collection. 



Perigona rufilabris, Macleay. 



Trechus rufilabris, Mack, Trans. Ent. Soc. N.S.W., ii., 1871, 

 p. 114: /'. basalis, Putz., Ann. Mus. Civ. Genov., iv., 1873, p. 223. 



I have examined the type of Trechus 7'ufilabris, Mack, in the 

 Australian Museum, and have found it to belong to the genus 

 Perigona. A comparison of Macleay's description of P. rufi- 

 labris with Putzey's description of P. basalis convinces me of 

 their identity. 



Perigona australica, n.sp. 



Pale testaceous, head black, elytra with a narrow blackish strip 

 near margin of apical curve. Head with front rather strongly 



'' Bull. Mosc, ISSO, Iv., p. 318. 



