Key to the genera of the Limacodidae. By Dr. M. He ring. GG9 
20. Antennae of $ bare in the terminal thirds. 7 of forewing separated from the stalk 
of 8 + 9 or from the same place, rarely stalked. 12. Oania 
— Antennae of pectinated more than two thirds, or only pectinated at the base. 
7—9 of forewing always stalked.21. 
21. Antennae of <$ pectinated beyond % (cf. also Thosea cmvinervis) .22. 
— Antennae of 3 jiectinated only in the basal third.23. 
22. Posterior tibiae with 2 pairs of spurs, terminal thirds of <$ antennae bare, 8 of hind¬ 
wing connected with the anterior margin of the cell at its centre. 87. Spatulifimbria 
— Posterior tibiae only with terminal spurs, antennae of 3 pectinated to the ends, 8 
of hindwing connected with the anterior margin of the cell near the base . . . 10. Narosoideus 
23. Costal margin of forewing almost straight, posterior angle of the cell of the hind¬ 
wing slightly projecting. 2. Cheromettia p. p. 
— Costal margin of forewing very convex, posterior angle of the cell of the hindwing 
strongly projecting towards the margin. 11. Pinzulenza 
24. 6 and 7 separated on hindwing.25. 
— 6 -j- 7 of hind wing always from the same place or stalked.27. 
25. Posterior angle of the cell of the hindwing strongly projecting, 10 of fore wing 
slightly bent. 11. Altha 
— Posterior angle of the cell of the hindwing scarcely projecting.26. 
26. Vein 10 of forewing strongly bent. 16. Pseudanapaea 
— Vein 10 of forewing scarcely curved. 17. Pseudaltha 
27. 7 of forewing stalked with 8 -f 9 or arising from the same place.29. 
— 7 of forewing arises separated from 8 + 9.28. 
28. Posterior tibiae only with terminal spurs . 15. Mambara 
— Posterior tibiae with 2 pairs of spurs. 27. Birthama 
29. Posterior tibiae only with terminal spurs .30. 
— Posterior tibiae with 2 pairs of spurs.31. 
30. Vein 11 of fore wing arises opposite or distally to 2. 18. Miresa 
— Vein 11 of fore wing arises basad to 2. .19. Parasoidea 
31. Cell of hindwing very short, less than % of the wing, antennae of 3 plain . . 16. Ca'issa 
— Cell of hind wing longer, antennae of 3 more or less pectinated.32. 
32. Posterior angle of the cell of the hindwing strongly projecting (by + °f the anterior 
margin of the cell).36. 
— Posterior angle of the cell of the hindwing slightly projecting.33. 
33. Vein 10 of forewing arises after 7 from the stalk of 8 + 9. 20. Mambarona 
— Vein 7 of forewing arises after 10.34. 
34. Antennae of 3 pectinated.35. 
— Antennae of 3 only ciliated. 23. Iraga 
35. Vein 8 of hindwing connected with the anterior margin of the cell near the base, 
4 and 5 separated on forewing. 22. Limacorina 
— Vein 8 of hindwing connected with the cell at its centre, 4 + 5 arise from the same 
place on the forewing. 21. Mambarilla 
36. Vein 7 of forewing arises after 10 from the stalk of 8 + 9.37. 
— Vein 10 of fore wing arises after 7 (cf. also Birthamoides) . 26. P ygmaeomorpha 
37. Vein 8 of hindwing connected with the anterior margin of the cell by anastomosis, 
antennae of 3 only basally pectinated, sexes dimorphous. 21. Ghalcocelis 
— Vein 8 of hindwing connected with the anterior margin of the cell by a cross-vein, 
antennae of 3 pectinated to the ends, sexes not dimorphous. 25. Chalcoscelides 
38. Margin of forewing concave below the apex (cf. also Ceratonema concavum!) . . 39. 
— Margin of forewing straight or concave below the apex.41. 
39. Legs long-haired, antennae of 3 ± pectinated.40. 
— Legs with flat scales, antennae of 3 only pubescent. 28. Toana 
40. 7—10 of forewing stalked, posterior tibiae only with terminal spurs. 31. Mahanta 
— Only 8 + 9 stalked on forewing, posterior tibiae with 2 pairs of spurs . . . . 29. Ploneta 
41. Posterior tibiae without middle spurs, only with (sometimes also without) terminal 
spurs.42. 
— Posterior tibiae with 2 pairs of spurs (often hidden underneath hairs). [In case of 
6 + 7 of hindwing being fused, so that one vein is absent, it belongs to 80. Liparolasia .] 5G. 
42. Veins G and 7 of hindwing arise separately.43. 
— Veins 6 + 7 of hindwing arise from the same place or stalked.44. 
43. Vein 10 of fore wing stalked with 8 + 9. 37. Heterogenea - 
