600 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 113 



concerns the spots of the internal portion of the forewing, which in 

 the new species are arranged in distinctly longitudinal rows; mjumi- 

 pennis these spots are less numerous, and their arrangement is more 

 disorderly. The markings of the hindwing are quite different in the 

 two species. In consequence of so many essential differences in the 

 wing markings, it is difficult to assume that fumipennis and arcloris 

 might belong together as two sexes of one species. jMoreover, the 

 types of both of them originate from locahties rather remote one from 

 the other. The new species also has some resemblance to symplacota 

 A'leyrick, but differs from the latter in the number and size of the wing 

 spots, and has distinct genitahc structures requiring the placement of 

 these two species in separate subgenera. 



Pseiidatteria (Pseudatteria) cladodes Walsingham 



Figure 8; Plate 14 



Pseudatteria cladodes Walsingham, 1914, Biologia Centrali-Americana, Lepidop- 

 tera Heterocera, vol. 4, p. 2G9, pi. 8, fig. 6. 



Male genitalia. — Uncus rather narrow, slightly and gradually 

 dilated toward rotundate apex with a minute, acute point, and on 

 ventral surface with a little, haired papilla. Valva broadly subovate 

 with external margin rounded; costa sHghtly sclerotized; sacculus 

 slightly dilated at base and narrowly extended along entire ventral 

 margin of valva. Aedeagus moderately long and thick, with a narrow 

 distal process slightly dilated before tip, with spinulation laterobasad 

 of this process, and more basad with a long, ventral keel directed 

 basad and pointed at tip; cornutus large, transverse-subovate with 

 a thick, obtuse, cuculliform distal process; a long, loop-shaped cuneus 

 of numerous little spines, multiordinal in basal portion of loop, behind 

 its middle, and on end, and uniordinal in intermediate portions. 



Female genitalia. — Sinus vaginalis flatly infundibular with a 

 moderately broad lamella antevaginalis. Antrum tubular, slightly 

 elongate, narrower than adjacent portion of cervical portion of corpus 

 bursae; two lateral collicuh, one on each insignificantly incurved side 

 of antrum. Cervix bursae striated, more densely caudad, with a 

 strong lateral sclerotization; cestum long, narrow, tapering cephalad, 

 surrounded by a weaker sclerotized, serrately outlined area. Corpus 

 bursae moderately broad; signum indiscernible. 



Type. — Holotype, female (genitalia on slide 5768), "Central 

 America" (O. Sahdn; Felder Collection; 400153); BM. 



Other specimens examined. — cf (without abdomen), paratype, 

 Peru (Saunders Collection; 94-68); cf (genitaha slide 6615), Peru 

 (Saunders; 4012.32) ;BM. 



Remarks. — The label of the holotype of cladodes reads "Central 

 America," and Walsingham (1914) supposed that the specimen might 



