No. 2305. ON SOME FOREST LEPIDOPTERA—HEINRWH. 71 



HOLCOCERA PANURGELLA. new species. 



Palpi gi-ayish white, heavily dusted with blue-black scales. An- 

 tennae silvery gray. Face, head, thorax, and fore wings white dusted 

 with blue-black scales giving the moth a pale slate colored appear- 

 ance. On fore wings a narrow blue-black half fascia extending diag- 

 onally outward from just before middle of costa to dorsal margm of 

 cell; just beyond middle a small, very faint dorsal patch of same color ; 

 from just beyond apical third of costa and extending to tornus an 

 inwardly angulate narrow fascia of the same color, broken slightly 

 where it crosses the costal margin of the cell; along the termen a fine 

 line of indistinct dark dots; cilia sordid grayish. Hind wings pale, 

 smoky fuscous; veins slightly darker; cilia concolorous, lighter to- 

 ward base of dorsum. Abdomen sordid white. Under side of fore 

 wings dull metallic fuscous. Legs whitish, well sprinkled with blue- 

 black scales. Alar expanse, 23 mm. 



Habitat. — Santa Catalina Mountains, Ai'izona. (G. Hofer.) 



Food plant. — Pinus cemhroides ( ?) 



Type.— C^t. No. 21812, U.S.N.M. 



A large, easily recognized species. Described from a single female 

 reared (under Hopk. U. S. No, 13977) from branches of Pinus cem- 

 hroides heavily infested by a TetralopTia, species. The habits of the 

 larva were not noted; but it is very probably a scavenger guest in the 

 nests of the TetralopJia. Moth issued June 16, 1917. 



Family COSMOPTERYGIDAE. 



CHRYSOPELEIA OSTRYAEELLA Chambers. 



Plate 7, fig. 36; plate 9, figs. 52, 53, 57. 

 Chrysopeleia ostryaeella Chambers, Dyar. List N. Am. Lep., No. 6132. 



The work and larval habits of this species have already been so 

 accurately and succinctly described by Clemens ^ and Chambers ' 

 that it is hardly necessary for me to do more than cite the references. 

 The larva itself, however, is so interesting structurally and forms 

 such a perfect link in the chain of Cosmopterygid genera that it is 

 thought advisable to give a full larval description. Dr. Edna 

 Mosher, in her paper on the classification of Lepidopterous pupae ^ has 

 already described and figured the pupa. Chambers in his notes 

 on the species remarks on the difficulty of rearing any number of 

 moths. I have had a similiar experience. Out of some two hundred- 

 odd leaves of Ostrija virginica, all containing mines and larvae, I was 

 only able to rear two moths. ^ 



> Tin. N. Amer., p. 27. 

 » Can. Ent., vol. 6, 1874, p. 74. 



« Bull. 111. State Lab. of Nat. Hist., vol. 12, article 2, Mar., 1916, p. 104, fig. 95. 



* Material collected September 1915 at Lyme, Connecticut, by Mr. A. B. Champlain who writes that the 

 work was common on all the ironwood in that region. Moths issued June 9th and 15th of the following year. 



