'968 LORD WALSINGHAM ON THE [Nov. 26, 



38. c417) APHELOSETIA Stph. 

 = *Elachista (Tr. p.) Z., Stn., Stgr-Rbl., etc. 



Type Phalaena Tinea argentella CI. (Wstwd. 1840). 



Aphelosetia Stph. 111. Br. Ent. Haust. lY. 287 (1834); Wstwd. 



Syn. Gn. Br. Ins. 112-3 (1840). 



Elachista Tr. (c. Elachista) Z. Isis 1839. 211, 212-3. 



"When de&cYihmg, Elachista, Treitschke [Schm. Eur. IX. (2). 177 

 (1833)] wrote as part of his generic diagnosis : " Die Raupen 

 leben auf der TTnterseite der Baumblatter oder minirend zwischen 

 den Hauten derselben. Sie verpuppen sich in festen Hlilsen." 

 This restricted the possible type to species with such larval habits 

 (i. e. Buccidatrix 7i. and Phyllonorycter Hb.) with whose life- 

 history Treitschke was acquainted, and rendered it impossible 

 for any of the grass-mining species {Elachista Auct.) to be 

 regarded as a potential type. Treitschke quotes the life-history 

 of Buccidatrix frangidella Goze and Phyllonorycter [Lithocolletis) 

 tremidae 7i. from Fischer von Roslerstamm (^in litt.), but he was 

 personally acqviainted with the larvae of idmifoliella Hb. and 

 hlancardella (F., mespilella Hb. 272) Tr. Elachista Tr. must there- 

 fore sink as a. synonym of Phijllonorycter Hb., and v.lmifoliella 

 Hb. should be taken as the type. Duponchel [HN. Lp. Fr. 

 XI. 25, 499-502 no. 30 (1836)] cited comjjlanella Hb. as the type 

 of Elachista Tr., but Treitschke was unacquainted with the larva 

 of complanella, and this species is not indicated as specially 

 typical. Zeller's restriction to the grass-feeding species is also 

 invalid for the same reason. 



79. (3994-1) Aphelosetia hypoleuca, sp. n. 

 (Plate LII. fig. 11.) 



Anteiinae fuscous, the basal joint pale ochreous. Palpi whitish 

 ochreous. Head and Thorax whitish ochreous, the latter faintly 

 shaded with fawn-grey. Foreivings pale ochreovis (whitish ochreous 

 if worn), sprinkled and suffused with fawn-brown, especially 

 above the fold beyond the middle, with some deeper brownish 

 fuscous shades, notably along the costa and about the tornus ; 

 three black spots, one below the costa at two- thirds ; a smaller 

 one, a little beyond a,nd below it, about the end of the cell ; 

 a third, more conspicuous, on the fold at about half the wing- 

 length ; a strong blackish shade-line runs along the middle of the 

 brownish ochi-eous cilia. Exj). al. 8-9'5 mm. Uindioings rather 

 dark leaden grey ; cilia tawny greyish. Abdomen grey, anal tuft 

 ochreous. Legs pale brownish ochreous, shaded with fuscous 

 externally. 



Tyjie S (99036); $ (14312) Mus. Wlsm. 



Hah. Tenerife : Forest de la Mina, 17. III. 1902, 7. lY. 1904 

 {Eaton) ; Realejo, 7-10. Y. 1907 [Wlsm.) ; Puerto Orotava, 



