ANNETTE F. BRAUN. 353 



Cremastobombycia ignota Frey and Boll. 



Plate XXIV, Figs. 19, 20. 



Lithocolletis ignota Frey and Boll, Stett. ent. Zeit., xxxiv, 215, 1873. Chambers, 



Gin. Quart. Jn. Sci., i, 206, 1874. ; ii, 230, 1875. Walsingbam, Ins. Life, 



ii, 54, 119, 1889. Dyar, Bull. 52, U. S. Nat. Mus., 1902, No. 6320. 



Syn. bostonica Frey and Boll, Stett. ent. Zeit., xxxiv, 216, 1873. Chambers, Cin. 



Quart. Jn. Sci., i, 206, 1874; ii, 230, 1875. Dyar, Bull. 52, U. S. Nat. 



Mus., 1902, No. 6319. helianthisella Chambers, Cin. Quart. Jn. Sci., i, 



205, 1874. helianthivorella Chambers, Cin. Quart. Jn. Sci., ii, 100, 1875. 



elephantopodella Frey and Boll, Stett. ent. Zeit., xxxix, 268, 1878. 



Busck, Proc. U. S. Nat. Mus., xxiii, 247, 1900. Dyar, Bull. 52, U. S. 



Nat. Mus., 1902, No. 6322. actinomeridis Frey and Boll, Stett. ent. 



Zeit, xxxix, 268, 1878. Dyar, Bull. 52, U. S. Nat. Mus., 1902, No. 6324. 



Antennae brownish gray, annulate with darker. Face and palpi pale golden. 



Tuft reddish saffron, intermixed with white. 



Thorax and forewings deep reddish saffron. A fine white line on each side of 

 the thorax is continuous with a very indistinct snd short basal silvery streak 

 beneath the fold, consisting of a few scales. At the basal fourth of the wing is 

 an oblique silvery costal streak, black margined externally, and sometimes on 

 the costa before; rarely entirely unmargined. On the dorsal margin, slightly 

 nearer the base, is .a small dorsal spot, sometimes represented by but two or three 

 silvery scales, rarely margined behind with one or two dark scales. At the mid- 

 dle of the wing is a silvery fascia, varying from nearly straight to acutely angled. 

 In the former case the fascia is broader, strongly margined externally and on 

 the costa before with black. In those specimens having a distinctly angulated 

 fascia, the fascia is narrower, sometimes interrupted at the angle, its external 

 black margin less distinct, and usually not dark margined internally. At the 

 apical third are two opposite rather large, perpendicularly placed silvery streaks, 

 black margined behind, and the costal one sometimes on the costa before. Just 

 before the apex is an outwardly concave silvery costal streak, sometimes attain- 

 ing the dorsal margin, and sometimes with a few black scales before. Behind it, 

 in the apical portion of the wing, are a few black scales. Cilia slightly paler 

 than the wing color, shading to gray toward the tornus. Expanse 6.5-7.5 mm. 



Hind wings and cilia brownish gray, the latter with a purplish lustre. Abdo- 

 men above dark brown, with a metallic lustre. Legs fuscous, all the tarsi annu- 

 late with black. 



Widely distributed, occurring from Massachusetts to Texas, and 

 feeding on various species of Com positsc. Among its recorded food 

 plants are Verbesina alternifolia (L.) Britton (=Actmomeris squar- 

 rosa Nutt.), Elephantopus Carolinianus Willd. and Verbesina Vir- 

 ginica L. These three are the food plants recorded by Boll from 

 Texas. Mr. August Busck bred the species from Elephantopus 

 Carolinianus Willd., at Washington, D. C., and Mr. Chambers on 

 Helianthus giganteus L. from Kentucky. 



The rather large tentiform mine occurs on the lower surface of 

 the leaf. The loosened epidermis becomes much wrinkled in the 



TRANS. AM. ENT. 8OC., XXXIV, (45) DECEMBER, 1908. 



