196 



THE CANADIAN ENTOMOLOGIST. 



Legs bronzy brown, hind tarsi tipped with pale yellow. 



Expanse: 7-8 mm. 



Two specimens, Fredalba, San Bernardino Co., Cal. Larva 

 in brownish blotches in leaves of a species of Cornits. The complet- 

 ed case appears somewhat truncate at each end. Mines recei\"ed, 

 August 6; images emerged May 21 and 25. 



More closely allied to A. nysscEfoUella than to any other species, 

 but the more reddish colour and the more slender fascia will separate 

 the two species. 



Obrussa, new genus. 



Head and face tufted. Antenna 2/3, simple in d^, basal seg- 

 ment enlarged and concave beneath to form an eye-cap. Labial 

 palpi well developed, porrected. Maxillary palpi long, fiUiform, 

 folded. Tongue rudimentary'. 



Posterior tibia; with spines above; middle spurs above the 

 middle of the tibia?. 



Fore wings elongate ovate; lb simple at base, 2 becoming 

 obsolete shortly beyond transverse vein, which closes the cell 



before the middle of the wing, 3 

 and 4 absent, 5 and 6 stalked, the 

 stalk out of 8, 7 to costa out of 8, 

 9 absent. Hind wings a little o\er 

 'J/2. cilia 23-^; Ic faintly visible, 3 and 

 4 absent, 6 absent, 5 and 7 stalked 

 from before middle, cell open 

 between 2 and 5. Frenulum of 

 many spines. (Fig. 23). 



Type: Obrussa ochriJascieUa Chambers (Can. Ent., V, 128, 

 1873.).' 



The genus seems to approach Ectcedemia Bsk. more closely 

 than any of the other allied genera; from Ectcedemia it differs 

 chiefly in the presence of vein 5 of the fore wings and in the position 

 of the spurs of the hind tibiae, which are situated above instead of 

 below the middle. Obrussa is relati\ely somewhat shorter and 

 broader winged than either Ectademia or Nepticula. 



In describing Nepticula ochrifasciella, Chambers probably had 

 before him males onl\-, which are uniformly smaller than females. 

 and alone show the distinct ochreotis under surface of the basal 



Fig. 23. — Venation of 

 Obrussa ochrifasciella. 



