North American Tortricidce. 143 



Semasia tenidana, Wlsm. 

 One male. Arizona. 



Seinasia montanana, n. s. (PI. IV., fig. 12). 

 Head, thorax, palpi, and antennae pale olivaceous-ochreous. Fore 

 wings with the costa almost straight, apex acute ; apical margin 

 very oblique, not indented, pale olivaceous-ochreous. A very 

 faintly indicated outwardly oblique fascia from beyond the middle 

 of the costa is followed by some faint silvery lines, interspersed with 

 a few mconspicuous blackish scales which appear to underlie the 

 ochreous scaling. An outwardly oblique silvery streak following 

 the edge of the faint fascia is continued along the subapical vein to 

 the apex, enclosing three small festooned costal streaks in the apex 

 above it. Beneath it are two more or less confluent silvery streaks 

 along the veins. Cilia the same colour as the wings, interrupted by 

 a faint line of darker scales along their middle, which forms also 

 an oblique dash running inwards from the apex. Hind wings pale 

 brownish grey, with paler cilia, a faint line near their base. Abdo- 

 men of the same colour as the hind wings ; the anal tuft ochreoiis. 

 Expanse, 18 mm. 



One male. Montana. 



This specimen, in good condition, is nearly allied to 

 S. messingiana, F. E., but is smaller, paler, and less 

 distinctly marked. 



Semasia argutana, Clem. 



Two males, one female. Arizona. 



These are larger than the average of specimens from 

 the Eastern States, reaching 16 mm. in the expanse of 

 the fore wings. I have similar large specimens from 

 California. 



Semasia apacheana, n. s. (PL IV., fig. 14). 

 Palpi creamy white, with a few fawn-brown scales externally 

 and on the very short apical joint. Head creamy white, roughly 

 clothed above. Thorax creamy white. Antennae slightly pube- 

 scent, faintly annulated. Fore wings creamy white, with an oblique 

 triangular fawn-brown dorsal mark before the middle reaching half 

 across the wing, beyond which is an oblique fascia-form shade run- 

 ning froiu a point beyond the middle of the costal margin to the 

 dorsal margin immediately before the anal angle ; in it are some- 

 times a few blackish scales near the dorsal margin, and it is mar- 



