354 AMERICAN MICRO-LEPIDOPTERA. 



later stages, and the mine is distinctly visible on the upper surface 

 as a tubercular swelling. The larva, which is pale in the earlier 

 stages, becomes dark brown just before pupation. The dense white 

 elongate cocoon, ornamented with longitudinal ridges, is suspended 

 in the mine at each end by two silken threads. 



The series of specimens from which the above description was 

 made were bred from mines on Verbesina alternifolia (L.) Britton 

 at Cincinnati, Ohio. Frey's description of actmomeridis is applica- 

 ble to those specimens having the straighter fascia, and heavier 

 margins of the silvery marks. A specimen bred by Mr. August 

 Busck on Elephantopus Carolinianus Willd. is identical with these. 

 The description of elephantopodella agrees with those specimens 

 having the angulated fascia, and narrower and less distinctly dark 

 margined silvery marks. Frey has described ignota as having un- 

 spotted hind tarsi ; in none of my series is this true. This variation 

 in the markings of the tarsi occurs frequently, and cannot be con- 

 sidered of specific value. Chambers' types of helianthivorella all 

 have the hind tarsi distinctly annulate with black, show considera- 

 ble variation in the angulation of the silvery fascia, and have the 

 minute basal streak. 



Cremastobombycia verbesinella Busck. 



Plate XXIV, Fig. 21. 

 LithocolleMs verbesinella Busck., Proc. U. S. Nat. Mus., xxiii, 246, 1900. Dyar, 



Bull. 52, U. S. Nat. Mus., 1902, No. 6323. 



"Antennae silvery white* with black annulations, last four or five joints white. 

 Labial palpi silvery white. Face golden iridescent white; tuft on head reddish 

 yellow, with a few white scales. Thorax and forewing deep golden yellowish 

 brown. At basal third is a silvery white costal streak directed outward, strongly 

 margined externally with black. At the middle of the wing is a silvery white, 

 outwardly angulated fascia, and at the beginning of costal cilia another similar 

 one, both strongly margined externally with black. Just before apex is a third 

 small silvery white fascia with a few scattered black scales externally. Cilia 

 light golden yellow. Hindwings dark silvery gray, cilia a shade lighter. Abdo- 

 men above dark gray; underside silvery and golden yellow. Legs silvery, with 

 broad black annulations. Alar expanse 6.4 mm." 



Described as above by Mr. August Busck from a single specimen 

 bred from Verbesina Virginica, collected at Palm Beach, Florida, 

 by Dr. Dyar. 



Mr. Busck has given the following note upon the early stages : 

 " The larva makes a roomy tent-shaped mine on the underside with 

 the lower epidermis much wrinkled longitudinally, and pupates in 

 an elongate white cocoon suspended at both ends like a hammock 

 inside the mine. Larva belongs to the cylindrical group." 



