Description of Actinopteiyx aiistralis the first »peeies of 

 Trichopteiygia disco ucred in Australia : by the Eev. 

 A. Matthews, M.A., Oxoii. 



Australia has at last sent us a representative Trichop- 

 terygian in the shape of a very pretty and interesting new 

 species of Actinopteryx. 



This fine addition to our collections was found by Mr. 

 Brewer on the Swan Eiver (probably under refuse on its 

 shores), and forwarded by him to Mr. Janson, by whose 

 desire I now announce its occurrence. I have dissected 

 one specimen, and find that, though very distinct in species, 

 in all generic characters it agrees precisely with A.fitcicola, 

 especially in the maxilla:, metasternum and seven ventral 

 segments of the abdomen. This is very satisfactory to me, 

 inasmuch as it establishes the validity of my new genus 

 Actinopteryx. 



Actinopteryx australis, nov. sp. 



L.c. ''^ lin. — Oblongo-ovalis, sat depressa pilis la^te 

 argenteis vestita, capite sat magno, pronoto ad latera 

 valde dilatato, in medio latissimo, punctis sat magnis 

 distinctis, interstitiis glabris nitidis, atque depressione 

 lata longitudinali utrinque in disco, impresso, lateribus 

 valde rotundatis, angulis posterioribus vix productis, 

 acutis ; elytris ad apices parum attenuatis, lateribus modice 

 rotundatis, confertim, sat profunde asperatis, apicibus 

 dilutioribus, parum rotundatis ; pedibus atque antennis 

 longis, gracilliinis, pallide fiavis. 



Head large, much rounded in front, marked with rather 

 large distinct punctures ; eyes small, not prominent ; 

 antennae very long and slender with the three apical joints 

 slightly incrassate, pale yellow. 



Thorax large, transverse, scarcely longer than the head, 



