126 BULLETIN 123, UNITED STATES NATIONAL, MUSEUM. 



Type.—Csit No. 24815, U.S.N.M. 



Type tocality. — Eastern shore of Mobile Bay, Alabama. 



Food plant. — Chrysoma paucifiosculosa. 



Described from male type and female paratype reared October 3, 

 1920, by George P. Englehardt at Brooklyn, N. Y., " from root 

 cuttings of Ghrysoma {Solidago) paucifiosculosa collected by Dr. 

 Thomas van AUer, of Mobile, Alabama, during September (1920) 

 near Daphne, Baldwin County, Alabama, along the eastern shore of 

 Mobile May in sand along the beach. The larvae attacks the root- 

 stock, boring in tortuous channels from the base of the plantstalk 

 downwards. The galleries are packed tightly with powdery frass. 

 At time of pupation it constructs a circular tube one or two inches 

 long, out of minute plant chips and silk, either within the gallery 

 or adjacent thereto along the rootstalk. When received during 

 September the rootstocks contained two pupae and a number of 

 larvae in various stages of growth." 



To Mr. Englehardt we are indebted for the above note. 



106. EUCOSMA SOMBREANA Eearfott. 



(Fig. 151.) 



Eucosma somibreana Kearfott, Proc. U. S. Nat. Mus., vol. 28, 1905, p. 357. — 



Barnes and McDunnotjgh, Check List Lepid Bor. Amer., no. 7036, 1917. 

 Euoosma phlaeodes Meyrick, Exot. Microlepid. vol. 2, pt. 2, 1920, p. 344. 



This species is slightly variable in color, but at that Kearfott has 

 mixed two species among his cotypes. Two females in the National 

 Museum and one in the American Museum are quite different from 

 his type. 



Mr. George P. Englehardt who has reared the species has furnished 

 "the following note on its habits: "Adults, July-August. Larvae, 

 September-November, borers, in Helianthus giganteus and H. tube- 

 rosus^ beginning at basal part of plant stalk, downward into rootstock 

 and later into the tubers. Frass and slimy exudence indicate places 

 of attack. At maturity, late October or early November, the larvae 

 leave foodplant, tunnel through the soil to within about one inch 

 below surface and hibernate within a tough, oval cocoon, flattened 

 at the upper end to seal a horizontal slit. Pupation does not take 

 place until late June or early July. Pupal state about two weeksi." 



Male genitalia from typical specimen in National Collection from 

 Oconee, Illinois ("Aug. 16"). 



Distribution: North Carolina, New York, Maryland, Pennsyl- 

 A'^ania, Illinois, Missouri, Ohio, New Jersey, Connecticut, Arkansas, 

 Manitoba. 



Alar expanse. — 19-27 mm. 



Type. — In American Museum. 



Type locality. — Tryon, North Carolina. 



Food plants. — Helianthus giganteus and H. tuberosus. 



