144 U.S. NATIONAL MUSEUM BULLETIN 244 



Material examined. — 3 cases: 



Argentina: Chaco Austral, Ingenio Las Palm, case, DEI. Reconquista, 

 case, DEI. Valderramas, case, DEI. 



4. "Chalia" rileyi Heylaerts 



Chalia rileyi Heylaerts, Ann. Soc. Ent. Belg., Compt.-Rend., vol. 28, p. ccviii, 

 1884.— Kirby, Cat. Lep. Heter., vol. 1, p. 508, 1892.— Dyar, Ent. News, 

 vol. 4, p. 321, 1893. — Neumoegen and Dyar, Journ. N.Y. Ent. Soc, 

 vol. 2, p. 120, 1894.— Dyar, Nat. Mus. Bull. 52, no. 4070, 1902 [1903].— 

 Forbes, Cornell Univ. Agric. Exp. Sta. Mem. 68, p. 144, 1923.— Gaede in 

 Seitz, Macrolep. World, vol. 6, p. 1178, 1936. 



Apterona rileyi (Heylaerts) Dyar, Insec. Inscit. Menst., vol. 11, p. 5, 1923. — 

 McDunnough, Check List Lep. Canada and USA, pt. 2, no. 9536, 1939. 



Oiketicoides rileyi (Heylaerts) Dalla Torre and Strand, Lep. Cat., pars 34, p. 

 101, 1929. 



The following is quoted from the original description: 



Mas. Flavo-griseus, dense hirtus; capite flavo-brunneo; antennis brevibus, 

 longitudine marginis anterioris tertii, ciliis longioribus a medio apicem versus 

 decrescentibus, 22-articulatis; pseudopalpis brevibus brunneo-griseis; thorace 

 (abdomen deest) bruneo-griseo piloso. Pedibus bruneo-griseis tarsisque flavis. 

 Tibiis anterioribus spina maxima. Alls concoloribus flavo-griseis, anguste 

 brunneo-marginatis fimbriisque longis atque brunneo-griseis. 



Alls anterioribus elongatis basi multo angustiori, apice subrotundato, margine 

 anteriori fere recto ut margo interior; margine exteriori obliquo; costis 10; la et 

 lb ut apud genus Chalia Moore, 2 et 3 ex margine inferiori, 4, 5, 6, 7 et 8 (ex 

 eodem puncto) ex margine exteriori, 9 ex margine superiori cellulae mediae; 10 

 libera ex basi. 'Cellula intrusa' nulla. 



Alis posterioribus elongatis, margine anteriori subrotundato; margine exteriori 

 obliquo, in medio paulo truncato; margine interiori subobliquo, apice anguloque 

 anali non productis; costis 7 liberis: 7 tota libera ex basi. Cellulae mediae parte 

 anteriori brevi et angustiori, parte posteriori latiori longiorique. 



Expansio alae anterioris 5 mill.; id posterioris 4 mill. 



Feminam non vidi. 



Involucrum cylindricum, longitudine 11 mill., cinereum, omnino granis sabulosis 

 (fragmentisque lignosis aut lichenum?) obtectum. 



Eruca carnea, capite segmentisque tribus antioribus flavis nitidisque, brunneo- 

 nigro striatis. 



Habitat: Unio Americana, Missouri. 



Male, larva cum involucris in Museo Prof. C. V. Riley. 



Espfece trfes petite, pas plus grande qu'une Epichnopteryx pulla Esp. de petite 

 taille. 



Les chenilles furent trouvees sur le trouc de pommiers et de perchers dans le 

 Missouri. 



Discussion. — This insect already has been discussed rather fully 

 in connection with Zamopsyche commentella, a species which eventually 

 may be considered identical to C. rileyi. Since the type of C. rileyi 

 has been lost, specimens of this moth will have to be collected from 

 the type locality before the problems of its identity and possible 

 synonymy can be resolved. 



