ANNETTE F. BRAUN. 351 



"Hind wings and cilia gray. Abdomen dull gray; anal tuft pale. Legs whit- 

 ish, tarsal joints unspotted, tibiae barred with gray externally. Expanse 8 mm." 



With the exception of the omission of any mention of the basal 

 streak, which is confluent with the first fascia just below the fold, 

 the above description by Lord Walsingham is that of the typical 

 form of the species, in which the first fascia attains the dorsal mar- 

 gin. In another variety (Fig. 22, Plate XXIV), the first fascia 

 ends abruptly just below its angle and does not unite with the basal 

 streak. All gradations exist between these two varieties. 



The species was originally described from a specimen from Ala- 

 meda Co. ; I have bred a large series from Mariu Co., California. 



The mines occur upon either the upper or lower surface of leaves 

 of Grindelia robusta. In the upperside mines the leaf is more con- 

 tracted and the epidermis is thrown into more distinct folds than is 

 the case in the lower side mines. The elongate white silken cocoon 

 is attached at its posterior end by two fine threads, and at its ante- 

 rior end by a rather broad band of silk. 



Cremastobombycia solidaginis Frey and Boll. 



Plate XXIV, Fig. 17. 

 Lithocolletis solidaginis Frey and Boll, Stett. ent. Zeit., xxxvii, 223, 1876. Dyar, 



Bull. 52, U. S. Nat. Mus., 1902, No. 6298. 

 Syn. solidaginisella Chambers, Jn. Gin. Soc. Nat. Hist., ii, 190, 1880. 



Antennae grayish, distinctly annulate with dark brown. Face and palpi yel- 

 lowish white. Tuft brownish ocherous, white at the sides. Thorax and fore- 

 wings reddish ocherous; a white stripe on each side of the thorax continuous 

 with a rather indistinct whitish basal streak on the forewings below the fold, 

 ending at one-third. Four white costal streaks, of which the first two are oblique, 

 and situated at one-third and at the middle of the wing length respectively. The 

 third is at two-thirds, and nearly perpendicular and the fourth just before the 

 apex and inwardly oblique. All are dark margined externally with dark brown, 

 the margin of the last forming the dusting of the apex. A long, oblique dorsal 

 streak commences near the middle of the dorsal margin ; its dark margin usually 

 unites with that of the second costal ; sometimes the streaks themselves unite. 

 Opposite the third costal an oblique dorsal streak is indicated by a slightly 

 lighter shade and a few dark scales behind it. Hinder marginal line in the cilia 

 brownish, rather indistinct. Cilia ocherous. Alar expanse 7-9 mm. 



Hindwings and cilia ocherous gray. Abdomen gray ; anal tuft ocherous. Legs 

 whitish, banded with ocherous; tarsal joints tipped with black. 



A common species in the United States, making elongate, much 

 wrinkled mines upon the under surface of leaves of goldenrod, Soli- 

 dago. The dense white cocoon, marked with longitudinal ridges, is 

 suspended hammock-like within the mine, by a single silken thread 



TEANS. AM. ENT. SOC., XXXIV. OCTOBER, 1908. 



