1881.] NORTH-AMERICAN TINEID.E. 305 



instead of greyish oclireous or "greyish brown," as stated in Mr. 

 Stainton's Manual ; but it possesses the same characteristic markings, 

 rendered more conspicuous by the paler ground-colour, but more 

 curtailed and divided ; the two rings on the antennae appear in both 

 species, although, curiously, they are not mentioned by Mr. Stainton 

 either in his ' Insecta Britannica ' (Tineina) or in the Manual. The 

 dark shading, which in English specimens covers the whole upper 

 half of the fore wings, is scarcely traceable in the single specimen now 

 before me, which occurred in Southern Oregon at the beginning of 

 May 1871. 



Plutella albidorsella, sp. nov. (Plate XXXV. fig. 5.) 



Capite albo ; palpis albis, ad latera brimneo-fusco attinetis ; an- 



ten7iis subannidatis, apicem versus bimaculutis ; thorace albo; 



alls anticis albis, litura bruiineo-fusca, infra bianguluta, ultra 



medium oblique porrecta, plus quam dimidium costale obtegit, 



punctis normuUis in margine apicali et maculis in sjiatio apicali 



brunneo-fuscis, ciliis albidis brunneo-fusco interruptis ; posticis 



subcinereis. 



Head white ; palpi white, the tuft upon the second joint tinged 



on the outside with brownish fuscous. Antennae white at the 



base, faintly annulated beyond it, with two brownish fuscous spots 



towards the apex, the first occupying about three joints, the second 



(nearest to the apex) occupying two. Thorax white. Patagia 



hrownish fuscous at their base, white beyond. 



Fore wings white, with a large brownish fuscous costal blotch ex- 

 tending over more than half the wing, having two angles at its lower 

 edge, the outer one of which is the most clearly defined, terminated 

 obliquely beyond the middle. There are a few brownish fuscous dots 

 on the dorsal margin, and some small brownish fuscous blotches on 

 the apical portion of the wing, the whitish cilia being also interrupted 

 by brownish-fuscous spots and streaks. 

 Hind wings pale cinereous. 

 Expanse 1.5 milHm. 



A single S specimen of this very distinct species occurred in Lake 

 county, California, June 18, 1880. 



Plutella porrectella, Linn. (Wocke, 1624). 



This species occurred May 31, 1872, in Mendocino county, in 

 August on Mount Shasta, California, and in June in Southern Oregon, 

 but very sj)aringly : I met with only about six specimens in all. 

 It was first noticed in America by Dr. Clemens, who described it under 

 the name Plutella vigilaciella, teste Stainton (Tin. N. Amer. p. 90). 



Plutella vanella, sp. nov. (Plate XXXV. fig. 6.) 



Capite et palpis albidis ; anteiinis annulatis ; alis anticis albidis 

 brunneo atomosis, fascia basalt triangulari obliqua et plaga 

 media triangttlari (in casta macula albida interrupta) brunneis, 

 margine apicali brunneo, anguste adumbrate ; posticis cinereis, 

 ciliis paulo dilutioribus. 



