64 PROCEEDINGS OF THE NATIONAL MUSEUM vol. oi 



of the Zygaenidae and Bombycidae of North America, vol. 1, p. 83, pi. 3, 

 fig. 6, 1873.— Obkethub, Etudes d'EntomoIogie, vol. 6, p. 112, pi. 19, figs. 5, 8, 

 1881. — Deuce, Biologia Centrali-Americana, Heterocera, vol. 1, p. 98, 1884. — 

 H. Edwakds, U. S. Nat. Mus. BuU. 35, p. 61, 1889 [food plant].— 

 Dyar, Eut. Amer., vol. 6, p. 73, 1890 [larva, cocoon, pupa].— Smith, 

 List of the Lepidoplera of Boreal America, No. 1117, 1891.— Kibbt, A Byno- 

 nymic catalogue of the Lepidoptera Heterocera (moths), vol. 1, p. 218, 1892. — 

 Neumoegen and Dyab, Journ. New York Eut, Soc, vol. 1, pp. 178, 179, 1893.— 

 Ottolengui, Ent. News, vol. 7, p. 124, pi. 4, 1896.— Hampson, Catalogue of 

 the Arctiadae (Arctianae) and Agaristidae in the collection of the British 

 Museum, vol. 3, pp. 389, 392, 1901.— Dyae, U. S. Nat. Mus. Bull. 52, No. 857, 

 1903. — Smith, Check list of the Lepidoptera of Boreal America, No. 946, 

 1903.— Holland, The moth book, p. 124, pi. 16, fig. 2, 1903.— Barnes and 

 McDuNNouGH, Check list of the Lepidoptera of Boreal America, No. 968, 

 1917; Contr. Nat. Hist. Lepid. North Amer., vol. 4, p. 90, 1918.— Strand, 

 Lepidopterorum catalogus, pt. 22, p. 279, 1919. — Seitz, Die Gross-Schmetter- 

 linge der Erde, vol. 6, p. 315, pi. 40b, 1919. — Essig, Insects of western North 

 America, pp. 581, 583, 678, 1926 [parasites of, larva, food plants]. — McDun- 

 nough, Check list of the Lepidoptera of Canada and the United States of 

 America (Part 1, Macrolepidoptera ) , No. 1082, 1938. 

 Ecpantheria plcta (Packard) Btjrmeister, Ann. Mus. Publ. Buenos Aires, vol. 3, 

 p. 31, 1883 (as synonym of E. aulaea). 



Male genitalia. — Lateral process of harpe with posterior edge 

 smooth, much broader than portion of harpe beyond it; distal end 

 fleshy, slightly dilated apically. Anellus strongly concave laterally. 

 Aedeagus with poorly developed distolateral flap ; scobinations of the 

 vesica weak. Vinculum narrowly rounded. Uncus short, stocky, 

 evenly curved. 



Female genitalia. — Median protuberance of ostium broad, flat- 

 tened, without sickle-shaped sclerotized lateral area. Ductus seminalis 

 membranous. 



Alar expanse, 33-62 mm. 



DistHhution. — Southern part of the United States northward to 

 Illinois, Utah, and northern California and southward into Mexico, 



Arizona: Oak Creek Canyon, ? (6,000 feet, July, F. H. Snow) ; Prescott, $ 

 ("VII," collector not given). 



California: Alameda County, 2$ $, 'i (September, October; no collector) ; Los 

 Angeles, ^,25? (25-X-18S9, H. G. Dyar No. 4084; 26-X-1889, H. G. Dyar 

 Nos. 4190, 4208) ; Los Angeles County, $ (no date or collector) ; Sacramento, 

 9 (no date or collector); San Diego, $ (16-X-1909, George H. Field), 

 2 95 (14-X-22; lO-X-23; no collector); San Francisco County, 2$$, 

 29 2 (September and October; no collector) ; several males and females 

 labeled "Middle California" and "Southern Califoi'nia." 



Colorado: 9 (no date; "Bruce"). 



Florida: Palm Beach, $ (4-II-1890, H. G. Dyar No. 4552). 



Illinois: Quincy, 9 (no date; Poling). 



New Mexico: Jemez Springs, 9 (no date or collector). 



Utah: 9 (no other data). 



