ANNETTE F. BRAUN. 299 



to one-third the wing length, and a shorter streak of the same color follows the 

 dorsal margin from the base to half the length of the one ahove it; the first dor- 

 sal streak is broad, outwardly oblique, and reaching nearly to the smaller trian- 

 gular costal streak above it; in some specimens it actually attains to it, forming 

 an angulated fascia; the point of the second dorsal, also somewhat triangular, is 

 directed a little beyond the point of the second costal streak above it; these are 

 both nearly perpendicular; the third dorsal very small; arising opposite the 

 space between the third and fourth costal streaks; it reaches to the apex of the 

 former; the end of the wing is enclosed by a dark semi-circular line at the base 

 of the cilia, within which is an elongate blackish spot ; cilia are grayish, with a 

 faint saffron tinge. 



"Hindwings and cilia pale grayish. Abdomen gray above, anal tuft scarcely 

 paler. Posterior tibiae, whitish, unspotted. Expanse 6 mm." 



"Two specimens were bred from larvae found mining the upper 

 sides of leaves of Alnus incana on Mount Shasta, Siskiyou Count} 7 , 

 Cal., in August, 1871, in which month the perfect insects emerged. 

 Three other specimens were met with on the wing, also in the 

 neighborhood of Mount Shasta." 



The above is Lord Walsingham's description. 



Lithocolletis alni Walsingham. 

 Lithocolletis alni Walsingham, Ins. Life, iii, 326, 1891. Dyar, Bull. 52, U. S. Nat. 



Mus., 1902, No. 6274. 

 Syn. alnivorella Chambers (not Ragonot), Gin. Quart. Jn. Sci., ii, 302, 1875. Bull. 



Ge.ol. Surv. Terr., iii, 139, 1877. 



"Palpi and antennae rather short for this genus, and tuft on the vertex also 

 small ; face, palpi, under surface of the thorax and abdomen and the legs silvery, 

 the palpi a little darker on the outer surface; antennae and tuft silvery fuscous, 

 or perhaps as correctly ash-brown ; upper surface of thorax and forewings egg- 

 yellow, varying to golden with change of light. There is a short basal, silvery 

 white streak along the dorsal margin of the forewings, and a longer median 

 basal streak of the same color, and dark margined toward the costa. A silvery 

 white fascia immediately before the middle, posteriorly obtusely angulated about 

 the middle of the wing, and dark margined before, the dark margin becoming 

 more diffuse along the dorsal margin, where it is produced forwards until it meets 

 the basal dorsal white streak ; the point of the angle of the fascia is sometimes 

 margined behind by a small dark brown spot, and the fascia is widest on the 

 dorsal margin ; just behind the middle is a costal silvery white streak, and oppo- 

 site to it is a dorsal one, both strongly dark margined before, and both pointing 

 a little obliquely backwards, this dorsal streak is placed immediately before the 

 cilia, and a little further back is a small triangular dorsal silvery spot, dark mar- 

 gined before; opposite to the space between these two is a straight silvery costal 

 streak, also dark margined before, which sometimes bends backwards and unites 

 with the second of the dorsal streaks referred to above; whilst its dark margin 

 bends forwards and unites with the dark margin of the first one; further back 

 is a third costal streak, which is small, straight and dark margined before. 



TKANS. AM. ENT. 8OC. XXXIV. OCTOBER. 1908. 



