BAGWORM MOTHS OF THE WESTERN HEMISPHERE 71 



Plaioeceticus rugosus Koehler, Rev. Soc. Eut. Argentina, vol. 3, pp. 351, 352, fig. 7, 

 1931 (new synonymy). — Gaede in Seitz, Macrolep. World, vol. 6, p. 

 1184, 1936.— Jones, Trans. Amer. Ent. Soc, vol. 71, p. 122, 1945. 



Prochalia rugosa (Koehler), Physis, vol. 17, pp. 461, 471, fig. 8, 1939. 



Male. — (Fig. 14.) Body moderately stout, densely hairy; dark 

 fuscous. Antennae (fig. 374) usually with 26-28 segments; pecti- 

 nations relatively short, somewhat stocky. Foreleg greatest in length, 

 first tarsal segment approximately doubling second. Meso- and meta- 

 thoracic legs with first tarsal segments slightly exceeding second, dis- 

 tinctly less than twice its length. 



Wings rather heavily scaled, fuscous. Forewing with discal scales 

 of two types: either long and slender with very pointed apices; or 

 shorter and broader with sharply bidentate tips. Wing expanse 

 20-23 mm. 



Male genitalia. — (Fig. 263.) As described for genus. 



Female.— Length 13 mm. As described for genus. 



Female genitalia. — (Fig. 303.) As described for genus. 



Case. — (Figs. 76-78.) Length 15-27 mm.; diameter 5-7 mm. 

 Exterior of case densely covered by short (4-10 mm. long) sections of 

 slender twigs, laid obliquely across bag, somewhat spirally arranged. 

 The tips of these small twigs frequently are sharply pointed and some- 

 times project in a divergent fashion outward, thus often presenting a 

 rather jagged outline to the case. One larval case, bearing a Weyen- 

 bergh detennination label, differs from the foregoing description in 

 being heavily covered with leaf fragments. 



Types.— In the Rijksmuseum van Natuurhjke Historie (lectotype. 

 Psyche cassiae, designated by the author) ; Zoologische Sammlung 

 der Bayerischen Staates (cotypes, Chalia rebeli and Plaioeceticus 

 rugosus) . 



Type localities. — Cordoba, Argentina (P. cassiae) ; Buenos Aires, 

 Argentina (C. rebeli); "la sierra alta de" Tandil, Province de Buenos 

 Aires, Ai'gentina (P. rugosus). 



Recorded hosts. — "Asteraceae: Cynara cardunculus L.; Poaceae: 

 grasses" (Koehler, 1931). Fabaceae: "Cassia aphylla Cav." (Weyen- 

 bergh, 1884). 



Distribution. — (Map 9.) Present records indicate that this species 

 occurs in the Parana Plateau of Uruguay and west through parts of 

 the Parand Paraguay Plain of Ai'gentina. 



Discussion. — The adult males of Curtorama cassiae and Plaioeceticus 

 rebeli have been compared and found to be identical. In separating 

 these two "species," Koehler relied primarily on the pygidium of 

 the female pupa. According to him, these two insects could be 

 distinguished by the fact that the pupa of P. rebeli possessed two anal 

 hooks and that of C. cassiae bore only one. The female pupa of 



