156 AUSTRALIAN PSELAPEID.K, 



I am indebted for this insect to Mr. G. Lewis; it is labelled 

 Australia without any other locality. 



Rybaxis grandis, n.sp. 



Sat crassa, rufo-castanea, lsevis, parcissime pubescens, capite et 

 antennarum articulis penultimis infuscatis. Caput latitudine sua 

 multo longius et antrorsum vix attenuatum, sed utrinque lateribus 

 leviter incisum, fronte medio impressione magna et inter oculos 

 foveis duabus validis. Antennae mediocres, articulis 1 " cylindrico, 

 2 ovato, 3-7 oblongis, 8 quadrato, 9 obconico, majori. latitudine 

 suapaulo longiori, 10 majori, trapezoidali, latitudine et longitudine 

 subaequali, 11 ovato, basi truncato et apice acuminata testaceo. 

 Prothorax capite multo et longitudine sua paulo latior, ant ice 

 plus et postice minus attenuatus, sulco transverso medio obtuse 

 angulato, fovea media inconspicua, foveis lateral ibus magnis. 

 Elytra magna, basi leviter attenuata, humeris notatis, stria 

 dorsali recta, quartam posticam partem disci attingenti, margine 

 postica leviter rotundata. Abdomen breve, basi leviter angusta- 

 tum. Abdominis segmento 1 dorsali basi minute impresso et 

 fasciculate, carinulis deficientibus. Metasternum convex urn 

 obsolete sulcatum ; segmento ultimo ventrali biimpresso. £. 

 Long. 2-20 mm. 



Australia (locality unknown). 



This species must be very closely allied to 11. quadriceps, 

 Westw., which I have not seen, but it has no trace whatever of 

 punctuation, whilst R. quadriceps, Westw., according to the 

 description, is "forte punctatissimus." Unfortunately I have 

 only one £. 



Rybaxis insignis, King. 



Trans. Ent. 80c. N.S.W. i. 1865, p. 172. 



It is necessary to complete the Rev. R. L. King's description. 



Magis elongata, rufo- vel rubro-castanea, antennis pedibusque 

 runs, capite, prothorace abdomineque nigris vel nigro-piceis, 

 obsolete et disperse punctata. Caput latitudine sua longius, 

 antrorsum leviter attenuatum, trifoveatum, fovea anteriori multo 

 majori. Antennae graciles, articulis duobus primis majoribus, 3-7 



