OF WASHINGTON, VOLUME XIV, 191:?. 15 



neither a lithosian nor an arctiau, nor does it belong to the 

 Liparidse. It will come in the group called Hypsidae by Sir 

 G. F. Harupson, a group including the forms that we have 

 classed under the term Pericopidae. The larva is smooth, 

 brightly colored, the setse degenerated and nearly lost, but 

 the subventral ones with duplicated hairs. It is thus the 

 possessor of many-haired warts, which have degenerated to 

 give place to a bright and conspicuous coloration. The larvae 

 of the Pericopidae possess a similar structure, except that in 

 general the warts and hairs are well developed and functional, 

 although in some, like Coinposia fidelissima H. S., the hairs 

 are few and the coloration of the skin is bright. Therefore 

 there is nothing in the structure of the larva of Don umpla 

 to prevent its reference to the Hypsidae. Dr, Dyar further 

 said that he would add a description of the larva for publica- 

 tion, which follows: 



Larva. Head small, rounded, notched behind at the vertex, flat 

 before, smooth shining black, the epistoma and bases of antennae 

 white. Body with the thorax roundly enlarged, swollen, the rest 

 evenly cylindrical, subtruncate behind. The enlarged thorax is black, 

 with large rounded angular white spots, while the central region is 

 yellow with broad black bands. Thoracic white spots subdorsal and 

 lateral on joints 2 and 3; on joint 4 they are yellow, the lateral one 

 partly divided; broad black dorsal and lateral stripes on joints 5 to 12, 

 the lateral one joined to a series of quadrate black patches in the 

 centers of the segments; subventral region and bases of feet black; 

 venter pale. On joint 11 posteriorly to the end of the body the black 

 color again prevails, broken by a subdorsal and lateral white spot on 

 joints 12 and 13. Thoracic feet and anal shield black. 



Cocoon. An open mesh of brown silk, in which the pupa has con- 

 siderable play. The cast larval skin is included. The pupa is uni- 

 formly brown. 



-Mr. Schwarz remarked shortly on the northward flight of 

 the cotton worm moth (Alabama argillacea), a phenomenon 

 which has not been observed in the city of Washington for 

 about twenty-five years. During the present year, 1911, the 

 moths were first observed in the city on September 19 and 

 from that date they were observed almost daily until Octo- 

 ber 19, being present sometimes in enormous number of spec- 

 imens. They were also observed on Plummer's Island, Mary- 



