LIOPTILUS. 43 



or three specimens on the Siskiyou range of moun- 

 tains in Southern Oregon in the middle of June 1872. 

 It approaches even more closely the South-Ame- 

 rican Lioxjtihis lenis, Zeller (Hone Soc. Ent. Ross, 

 xiii. p. 477, pi. vi. fig. 169), for an example of which 

 I am indebted to the kindness of Prof. Zeller ; but it 

 differs from that species in the absence of the small 

 marginal dots on the lobes of the fore wings. 



Lioptilus angustus, sp. uov. 

 (Plate III. Fig. 4.) 



Capite dilute stramineo. 



Alis miticis angustis, dilute stra7nineis, suhochraceo 

 atomosis vel snffusis, i^imcto suhohsoleto in hasi 

 fissurce fusco-hnmneo, ciliis dilute stramineis 

 {apicalibus extremis exceptis griseis) ; ])Osticis 

 cum ciliis dihitissime suhcinereis. 



Abdomine stramineo. 

 Tihiis alhidis. 



Head very pale straw-colour; palpi the same, but 

 touched with brownish at the sides; antennse 

 whitish, very faintly spotted with brownish 

 ochreous above. 



Fore wings narrow, very pale straw-colour, faintly 

 dusted or partly suffused with pale ochreous ; a 

 brownish-fuscous inconspicuous dot lies at the 



