80 LORD WALSINGHAM ON NEW TINEID.«. [Feb. 17, 



the basal third. Fore wings brown, with a slight purplish tinge, 

 crossed by two narrow white bars, the inner bar is halfway between 

 the base and the outer bar, which latter is slightly angulated out- 

 wards about the middle, and is situated slightly beyond the middle 

 of the wing : beyond the outer bar is a small white angulate spot at 

 the costa midway to the apex ; and on the apical portion of the wing 

 are, usually, some scattered small white dots and scales, varying in 

 number and distribution. The cilia above the middle of the apical 

 margins are white. Hind wings brown. Legs brown, tarsi spotted 

 with white. 



The female has the head covered with long bright ochreous hairs ; 

 the palpi black; antemise as in the male, but scarcely a third 

 longer than the fore wings ; abdomen acuminate, with the anal seg- 

 ments much appressed laterally. 



(S and $. Mendocino county, California, May and June 1871, 

 and Southern Oregon, May 1872. 



Expanse 1 1 millims. 



Adela singulella, sp. nov. (Plate XI. fig. 4.) 



J . Capite supra nigro, fronte albida ; antennis lonffissimis albis ; 

 alis anticis brunneis vix purpurascentibus, fascia singula post 

 medium alba ; posticis pupurascentibus. 



2 . Antennis paiiio brevioribus ; capite subgriseo, fascia vix I atiore. 



(S . Head black above, face greyish, both roughly clotlied ; the 

 palpi short, depressed, clothed with long black hairs beneath. An- 

 tennae white, more than three times the length of the fore wings, not 

 spotted. Fore wings brown, with a slight purplish tinge ; cilia the 

 same, a single narrow white fascia Just beyond the middle, not 

 visible on the underside except in a small costal spot, sometimes 

 slightly angulated below the costa. Hind wings rather more purphsh 

 than the fore wings ; the costal portion of the base, over which the 

 fore wings lap when the wings are extended, is white. Legs brown ; 

 tarsi indistinctly spotted with whitish. 



$ . With the head rather greyish, and the fore wings with a more 

 greenish hue than those of the male, having the fascia also slightly 

 wider. Antennae only slightly shorter than those of the male. 

 Expanse 10 millims. 



This species differs from Adela sulzella (Schiff.) in its smaller size, 

 narrower fascia, and in the antennae of the female being similar to 

 those of the male, instead of being thickened to the middle. 



(3', 5. Mendocino county, California, May 25, 1871. 



Adela lactimaculella, sp. nov. (Plate XL figs. .5 & 6.) 



cJ . Capite supra purpurascente, fronte et palpis nigro-setosis ; an- 

 tennis albis, apud basin nigrescentibus ; alis anticis subviridi-cupreis, 

 maculis duabus costalibus una (nonnumquam secundaj dorsali 

 ochreo-albidis ; posticis subpurpureis. 



5 . Palpis nigris, capite flavo ; alis anticis cupreis, macidis duabus 



costalibus subconspicuis. 

 Head purplish above, the face and palpi clothed with long black 



