30 U.S. NATIONAL MUSEUM BULLETIN 257 



Cacoecia serpentinana. — Meyrick, 1912, in Aurivillius, Lepidopterorum Catologus 



pars 10, p. 18; 1913, in Wytsman, Genera Insectorum, fasc. 149, p. 24, pi. 3, 



fig. 33.— Diakonoff, 1941, Treubia, vol. 18, p. 387. 

 Tortrix serpentinana. — Meyrick, 1921, Zool. Meded., vol. 6, p. 149. 

 Syndemis serpentinana. — Diakonoff, 1941, Treubia, vol. 18, pp. 41, 421; 1948, 



op. cit., vol. 19, p. 511, figs. 30, 37. 

 Isodemis serpentinana. — Diakonoff, 1952, Verh. Naturf. Ges. Basel, vol. 63, 



p. 147, figs. 10, 12, 14, 15. 



Distribution: India, Ceylon, Borneo, Sumatra, Java, Sumba, 

 New Guinea. 



Material examined: Luzon, Mt. Makiling (Baker), 1 9, genit. 

 slide 9525 (J.F.G.C.)(USNM). 



Archidemis, new genus 



Head 'with appressed scales. Ocellus posterior. Proboscis short. 

 Antenna 2/3, long-ciliate in male, ciliations over 1, minutely ciliated 

 in female. Palpus porrected , rather long, median segment triangularly 

 dilated by roughish scales towards apex above, terminal segment 

 moderate, exposed, slightly drooping (thorax denuded). Forewing 

 elongate-truncate, apex gently produced. Vein 2 from middle of 

 cell, 3 from angle, 4 distant, nearer to 5, 7 and 8 stalked, 7 to termen, 

 11 from befo.'e middle, cell very narrow, sinuate, not dilated. 



Hindwing without cubital pecten; vein 2 from 2/3, 3 and 4 connate 

 from angle, 5 closely approximated, 6 and 7 stalked. 



Male genitalia of Pandemis type, but with broadly triangular 

 uncus and smaller soc'i. Female genitalia of Pandemis type. 



Type species: Archidemi'^ ana^f^a, new species. 



The genus belongs to a type apparently ancestral to Pandemis 

 Hiibner. It differs from that genus and also from Panaphelix Wal- 

 singham and Pcrapandemis Obraztsov, by the neuration of fore- and 

 hindwiDgs, and from Ulodzmis Meyrick, by the not-notched base 

 of male antenna. The species has the facies of an Ulodemis, while 

 the male genitalia are very close to those of the European Pandemis 

 ribeana Hiibner. 



Archidemis anastca, new species 



Figures 20-22, 24-25, 28-29, 509-510 



Male, 25 mm. Head, palpus and thorax bright ta^^Tiy fulvous, 

 frons, scape of antenna in front and median third of palpus ferruginous. 

 Antenna mthout notch, ochreous tawny, ciliations 1, Abdomen 

 golden ochreous. 



Fore"\\ing oblong, subtruncate, hardly dilated beyond middle, costa 

 without fold, curved anteriorly, almost straight along posterior half, 

 apex pointed-rectangular, termen gently sinuate, little oblique. 

 Rather bright ochreous yellowish, strewm with numerous ferruginous 



