ISO AUGVKESTIIID.K. 



coidalis veiias tres in costam, venam furcatam in apicem, veiias tres 

 in marginera posticnm eraittit ; subdorsalis furcata ; posteriores : 

 vena discoidalis trifida, rainiim uiiura in costam, rauios duos in mar- ' 

 g-incm posticum mittens, infra earn vena unica libera. 

 Head smooth. Ocelli none. Antennae rather thick, longer than the 

 half oi the anterior wings. Tongue naked. Labial palpi rather droop- 

 ing, thickened with scales, with the apex blunt. Wings with long 

 cilia, the anterior elongate, the posterior acuminate. In the anterior 

 wings the discoidal cell emits from its apical angle three veins to the 

 costa, a furcate vein to the apex of the wing, and three to the hinder 

 margin ; the subdorsal vein is furcate ; in the posterior wings the dis- 

 coidal vein is tritid, sending one branch to the costa and two to the 

 hinder margin ; below it is a single free vein. 



Oiilj one species is kno\An iu this genus^ which unites the 

 habits, as it combines the structure, of Tinagma and GracUaria ; 

 having the anterior part of the bot\y slightly raised in repose, yet 

 having the sharp jerking motions of a Tinugyna ; it frequents the 

 JEcJi'mm 'Viilgare when in blossom ; its larva is unknown. 



1. Ocnerostomella, Sta. Ent. Trans, i. n. s. Proc. C (1850). 

 (Pf\LL ^^'^^ antieis nitide griseis, macula dilutiore obsoleta dorsali pone me- 

 dium. Exp. al. 3^-4 lin. 

 S" Head and face shining grey. Palpi ]iale grey. Antennae fuscous. 



Anterior wings shining grey, with an obsolete paler spot beyond the 

 middle of the inner margin ; cilia grey, mixed with paler and darker 

 scales. Posterior wings greyish-fuseous, with greyish-ochreous cilia. 



Common among yEvhinm vulgare, at the beginning of July, 

 flying at dusk. I have taken it abundantly at Box Hill. 



Family VII. ARGYRESTHID.E. 



C'a[)illi hirsuti, eplstomlo lavigato. Palpi maxillares nuUi. Palpi la- 

 biales breviusculi, articulo terminali subaeuto vel obtuso. Alte an- 

 teriores elongata\ posteriores lanceolata\ longe ciliata?. 

 Head rough; the face smooth. IMaxillary palpi none. Lal)ial palpi 



rather short ; the terminal joint hardly acute, or obtuse. Anterior wings 



elongate ; the posterior lanceolate, with long cilia. 



The four genera in this family have considerable affinity with 



each otlier, though dilfering in several points ; they may be readily 



distinguished as follows : — 



a. Anterior wings not subfalcatc. 



t). Palpi rather short, with apprcssed scales; terminal joint rather 



pointed. 1. AiKiVREsTUlA. 

 ii h. Pal|)i shorter, tliieker, and hairy. 2. ("edestis. 



