12 INSECTS AFFECTING VEGETABLES. 



tubercles, i and ii in line, iv and v approximate, superposed, iii and vi normal, 

 vii of three separated seta?: joint 2 with six seta* on the shield in two rows, 

 the shield concolorous : two seta? each for the prespiracular and subventral 

 tubercles: joint 3 with iia and iib in line, iii separate, iv and v approximate, 

 vi free. Color whitish, a long brown patch at the edge of the shield on joint 2 

 and over tubercles iia and iib on joint 3. Spiracles elliptical, those of joint 12 

 larger than the others. 



The cocoon. — The cocoon is composed of silk with fragments of extraneous 

 substances attached to the outside. Elliptical in shape, simple. 



The pupa. — Of the obtected type; pale brown, the eyes dark. Cremaster 

 square and flat, with a row of long, slender, terminal pale spines with hooked 

 tips. Surface smooth, without sculpture. Size 10 by 2.5 mm. 



APPENDIX. 

 Ey F. H. Chittenden. Sc. D. 



Owing to the fact that Mr. Marsh's report on the Hawaiian beet 

 webworm (Hymenkt fascialis Cram.) was completed at Rocky Ford, 

 Colo., he had no facilities for looking up the literature on the species. 

 Moreover, it was thought advisable, owing to the difficulty of describ- 

 ing the earlier stages in alcohol, that a technical description be made 

 by a specialist, hence this latter work was kindly furnished by Dr. 

 Dyar. while the writer has compiled the description and synonymy of 

 the species and outlined its distribution, history, and bibliography. 

 In the preparation of the bibliography. Mr. Thomas H. Jones as- 

 sisted, while the photograph of the moth was prepared by Mr. C. H. 

 Popenoe. and the drawing of the immature stages by Mr. J. F. 

 Strauss. 



Much has been written of this species in a technical way. but prac- 

 tically nothing has been published of importance, to the writers 

 knowledge, in regard to the biology of the insect, or description of its 

 earlier stages. Hence the notes which Mr. Marsh has furnished are 

 of great value, especially as he treats the insect in detail from the 

 standpoint of its occurrence and injuries in Hawaii, and has also per- 

 formed valuable experiments in the line of remedial measures. It 

 should be added that this species, since it occurs throughout the Gulf 

 region west to California, is apt to be troublesome at any time. 



DESCRIPTION AND SYNONYMY. 



Hymenia fascialis was first described in the year 1782 by Cramer. 

 The following is the synonymy accorded by Dr. Dyar in his list of 

 North American Lepidoptera. published in 1902. 



fasciitis Cramer, Pap. Exot.. iv. 23G. 17S2. syn. 

 angustalis Fabricus. Main. Ins., ii. 222, 1787. 

 recurvalis Fabricus. Ent. Syst.. iii. 2.237. 1704. 

 diffascialis Hfibner, Verz. bek. Scbmett., 361, 1S2G. 

 nJbif'isrialis Boisduval. Faun. Ent. Mad., 119, 1834. 



