228 LEPIDOPTERA HETEROCERA 
Geographical distribution of species. — Indian and African. 
Larva unknown. 
1. H. dischema, Meyrick, Exot. Microlep. Vol. r, p. 576 (1916). Nyassaland 
2. H. butyrofa, Meyrick, Journ. Bombay Nat. Hist. Soc. Vol. 20, p.458(1910). Ceylon. 
3. H. justa, Meyrick, ibidem, Vol. 20, p. 458 (1910). Ceylon. 
4. H. metriodes, Meyrick, Exot. Microlep. Vol. 2, p. 112 (1918). Bombay. 
339. GENUs DELTOPLASTIS, NOV. GEN. 
Type : D. ocreala, Meyrick. 
Characters. — Head with appressed scales; ocelli posterior; tongue developed. Antennae 5/6, 
in gf simple, basal joint elongate, without pecten. Labial palpi very long, recurved, second joint 
thickened with appressed scales, terminal joint longer than second, slender, acute. Maxillary palpi very 
short, filiform, appressed to tongue. Posterior tibiae rough-scaled above. Forewings with 15 furcate, 
2 and 3 stalked or coincident, 4 and 5 connate or stalked or coincident, 8 and 9 out of 7, 7 to apex, 
11 from beyond middle, Hindwings t or over r, trapezoidal, termen sinuate, cilia 1/2-4/5; 4 absent, 
3 and 5 stalked, 6 and 7 stalked. 
Remarks — Probably derived from Gasmara. 
Geographical distribution of species. — Indo-Malayan. 
Larva unknown. 
1. D. coercita, Meyrick, Exot. Microlep Vol. 3, p. 42 (1923). Coorg. 
2. D. scopulosa, Meyrick, Journ. Bombay Nat. Hist. Soc. Vol. 20, p. 45o(1910). Coorg. 
3. D. clerodotis, Meyrick, ibidem, Vol. 20. p. 450 (1910). Ceylon. 
4. D. amicella, Walker, List Lep. Het. Brit. Mus. Vol. 29. p. 634 (1864). Assam, Burma, Ceylon. 
obligatella, Walker. ibidem, Vol. 3o, p. 1023 (1864). 
5. D. tetradelta, Meyrick, Journ. Bombay Nat. Hist. Soc. Vol. 17, p. 150(1906). Ceylon. 
6. D. causidica, Meyrick, ibidem, Vol. 20, p. 451 (1910). Assam. 
7. D. ocreata, Meyrick, ibidem, Vol. 20, p. 451 (1910). Bombay, Madras. 
8. D. similella, Snellen, Tijdschr. v. Ent. Vol. 46, p. 44. pl. 5, f. 5 (1903). Java. 
9. D. horistis, Meyrick, Journ. Bombay Nat. Hist. Soc. Vol. 20, p. 452(1910). Assam. 
10. D. balanilis, Meyrick, ibidem, Vol. 20, p. 452 (1910). S. India. 
1 t. D. cremnaspis, Meyrick, ibidem, Vol. 16, p. 598 (1905). — PI. 4, Fig. 892. Ceylon. 
12. D. straminicornis, Meyrick, ibidem, Vol. 20, p. 453 (1910). Ceylon. 
13. D. caduca, Meyrick, ibidem, Vol. 20, p. 454 (1910). Assam. 
14. D. figurata, Meyrick, ibidem, Vol. 20, p. 453 (1910). Ceylon. 
15. D. fropensa, Meyrick, ibidem, Vol. 20, p. 456 (1910). Ceylon. 
16. D. byssina, Meyrick, ibidem, Vol. 20, p. 457 (1910). Ceylon. 
17. D. acrophanes, Meyrick, ibidem, Vol. 20, p. 457 (1910). Ceylon. 
18. D. commodaia, Meyrick, Exot Microlep. Vol. 3, p. 44 (1923). Ceylon. 
19. D. leptobrocha, Meyrick, ibidem, Vol. 3, p. 44 (1923). Coorg. 
340. GENUS COYDALLA, WALKER 
Coydalla, Walker, List Lep. Het. Brit. Mus. Vol. 3o, p. 1037 (1864). — Type : C. interguitella, Walker. 
Characters. — lI1ead smooth; ocelli posterior; tongue developed. Antennae over 1, basal joint 
elongate, without pecten. Labial palpi very long. recurved, second joint smooth, terminal joint much 
