114 



Cbambers writes (Bull. U. S. G. G. Surv., IV, 93) that, having bred a large series 

 of matutbUa Clem., be, tiuds its range of variation includes tbe forms described by 

 himself as dorslpaUidella, brevistriga, and immaculateUa. 



We shall therefore be probably safe in considering these names as synonyms for 

 one species of which matutella Clem, is the type, but this yields priority to impositella 

 Z. I am unable to accept Chambers' further suggestion that trivinctella Z. should 

 be also included here. The only two specimens I have of this species show a strongly 

 marked difference in the direction, although not in color, of the markings and appear 

 to represent a distinct type, but it should be easy to arrive at a correct conclusion by 

 repeating Chambers's experiments and breeding from the larvte which feed in a web 

 on the under side of the leaves of various species of Aster. 



Butalis basilaris Z. 



^ Jlavifrontella Clem. 



This synonymy, suggested by Staiuton (Tin. N. Am., 40), is verified by comparison 

 of a true specimen of JiavifronteUa Clem, with Zeller's type of basilaris. 



Butalis suffusa sp. u. 



Antennce, mouse-gray. 



Palpi, mouse-gray, dusted with whitish. 



Tongue, clothed at the base with whitish scales. 



Head, mouse-gray, streaked with whitish scales on the face and at the sides. 



Thorax, mouse-gray, sprinkled with whitish scales. 



Fore-wings, mouse-gray, sprinkled and suffused with whitish (iu some cases over- 

 spreading nearly the whole wing-surface), the scales are narrow and elongate, re- 

 calling to mind those of Butalis pilosella Z., cilia mouse-gray, with a faint 

 brownish tinge. 



Hind-ivings and cilia, brownish gray. 



Abdomen, mouse-gray, specked with whitish; lateral claspers with a broad, rounded, 

 central projecting end; a rounded, shorter excrescence on the upper side; and 

 a somewhat acute pointed process beneath, which leaves the main stem consid- 

 erably before its hinder margin ; iu this respect differing from Butalis ovhristriata. 



Exp. al., 10 -la-^™. 



Habitat, Mount Shasta, Siskiyou County, Cal. 



Type, $, Mus. TVlsm. 



I took 6 males in August, 1871. 



Butalis perspicillella sp. u. 



Palpi, white at the base and all along their upper side ; the end of the second joint 

 and the whole of the third joint smeared with brownish fuscous bel)w. 



Head, brownish-fuscous in front, margined above and at the sides with white, which 

 extends around the eyes and on the outer side of the basal joint of the antenme. 



Thorax, whitish-ocherous, tinged and smeared with brownish-fuscous, the center 

 above having a purplish iridescent tinge. 



Fore-wings, whitish-ocherous, tinged and smeared with brownish-fuscous ; having 

 two short brownish, fuscous streaks, the first adjacent to, but below, the fold on 

 the basal third of the wing ; the second on the fold scarcely beyond the mid- 

 dle of the wing ; above the fold is another short streak, lying nearer to the first 

 than to the second of these already mentioned ; towards the apex is a slight fus- 

 cous shade preceded by a small spot of the same color; cilia brownish-fuscous. 



Hind-wings, iridescent purplish-fuscous, coarsely scaled; cilia l)rownish-fuscous. 



Abdomen, iridescent purplish-fuscous above; the lateral appendages on the ultimate 

 segment whitish ocherous. 



Exp. a?., 10'""'. 



Habitat, California. 



Tifpe, Bileg Coll. [U. S.N. M.], No. 166, labeled " Folsom 15, 4, 85, California." 



