COLEOPIIORA, 219 



with fuscous to near the apex, the l)as;il joint pale fuscous, slightly 

 fliickenetl, not tufted. Anterior wings narrow, acute, shbi'uig, (jrt'iji^h- 

 ochrt'ous or greyish-yellow, with the costa narrowly white to near the 

 apex, where it is lost in the whitish-oehreous cilia. Posterior wings 

 grey, with paler cilia. 



Specimens in which the eosta of the anterior wings is only paler, and 

 not distinctly white, have been reputed distinct species, but 1 fancy im- 

 properly. 



Very common amongst ruslies iu June. The larva feeds from 

 Se})tembcr to ]\lay on the seeds of the rush, frequently completely 

 quitting its small whitish case to burrow into the seeds. 



27. annulatella (Xylander), Tengstriun, F. F.-F. U3. 12 (IS 17) ; 

 Zell. ; Sta. — vediauella , Lin. ? Fab. ? Alis anticis acuminatis, griseo- 

 ochreis, inter venas sqiianiis )iif/ris allj'isqne sparsis, costa anguste alljida ; 

 antennis aWns fiisco-aituulatis, articulo basali fuscescente, non penicillato. 

 Exp. al. 7 lin. 



Head and face greyish-ochreous. Palpi white. Antennae white, nu- 

 milated icitJt fifscom, the basal joint pale fuscous, not tufted. Anterior 

 wings acuminate, greyish-ochreous, or dark greyish-oclu'cous, with some 

 scattered lAack and ichlte scales beticeen the veins ; the costa is narrowly 

 dirty-white to beyond the middle ; cilia greyish-ochreous. Posterior 

 wings grey, with paler cilia. 



Yery common in July and August among Chenopodlum and 

 Atriplcx ; the larva feeds in the autumn on the seeds of those 

 plants in a ratlier short whitish-grey silken case, externally covered 

 with grains of sand. 



This species, like many of its congeners, is extremely variable, 

 and I strongly suspect that Flavaijinella, Licnig (Zell. L. K. iv. 

 353), is only one of the phases of it. 



28. argentula, Zell. T;. F. iv. 3G8 (181-9) ; Sta.; Step. ?— o//f/j- 

 pennetla, lliii). Tin. l-.'jo ? Dup. ? Alis anticis taiinscutis, albis, venis 

 dilatatis ochreis, i)iterstitiis attjis parce fasco-squamatis ; antennis albis 

 fusco-annulatis, articulo basali incrassato albido, non penicillato. I'Ap. 

 al. lin. 



Head and face pale greyish-oehroous. Palpi whitish. Antenna) 

 white, aimulated with fuscous, the l)asal joint somewhat thickened, 

 whitish, not tufted. Anterior wings rather broad, white, with the veins 

 broadly ochrcous ; in the intervening white spaces are a few sratlm-ed 

 dark fuscous scales; the costa is narrowly white to beyond the miihlle ; 

 cilia greyish-ochreous. Posterior whigs grey, with paler cilia. 



Not common ; occurs amongst yarrow [Achillea Mlllefoliu ui) 

 in July. The larva feeds in the autumn on the se(>ds of the 

 yarrow in a ratlier short whitish case; it remains in Ihe larva 

 state throughout the winter and spring. 



