266 U.S. NATIONAL MUSEUM BULLETIN 257 



Decadarchis minuscula. — Meyrick, 1915, Exotic Microlepidoptera, vol. 1, p. 367 

 (Ceylon); 1918, Ann. Transvaal Mus., vol. 6, p. 43 (South Africa). — Fletcher 

 1921, Mem. Dept. Agric. India, Ent. ser., vol. 6, p. 179. 



Distribution: West Indies, South Africa, Ceylon, Hawaii. Prob- 

 ably distributed throughout the Tropics. 



Food: Larva feeds in dry vegetable refuse, often beneath bark of 

 dead trees. 



Material examined: Luzon, Manila, rV.1913 (O.W. Barrett), 2 9, 

 1 specimen in fragments (USNM). 



Tineidae 



Key to the Philippine Genera of Tineidae 



1. Forewing with a hyaline small spot in disc Monopis 



Forewing without such spot 2 



2. Forewing narrow and long; abdomen long and slender; head sometimes 



enlarged; palpus bristly and rough 3 



Not as above 4 



3. Hindwing with veins 5 and 6 stalked Ischnuridia 



Hindwing with veins 5 and 6 separate Harmaclona 



4. Antenna in male bipectinate, pectinations fasciculate-ciliate . Melasina 

 Antenna in male ciliate or simple 5 



5. Posterior tibia with very long and fine appressed hairs above, in cf forming 



a long pencil; forewing covered with highly raised rough scale crests; 



thorax with a double posterior crest Hapsifera 



Posterior tibia with moderate hairs or without hairs; forewing not so strongly 

 tufted 6 



6. Forewing with veins 8 and 9 out of 7, 7 to costa (seldom 8 absent) or 7 and 



8 out of 9 7 



Not all these three veins stalked 8 



7. Maxillary palpus absent; forewing with vein 7 to costa .... Setomorpha 

 Maxillary palpus smooth, three-jointed, folded Exaxa, new genus 



8. Forewing with veins 7 and 8 or 8 and 9 stalked 9 



Forewing with all veins separate 12 



9. Forewing with vein 2 from 1/2, 3 from 3/4, 4 from angle of cell, vein 10 



absent; apex of wing pointed Oxytinea, new genus 



Veins 2, 3, and 4 with a different origin; vein 10 present 10 



10. Head strongly enlarged; abdomen in two sexes with two lateral or subdorsal 



longitudinal crests; posterior tibia often very long; forewing narrow, with 



veins 7 and 8 stalked Gerontha 



Head normal; abdomen without such crests; posterior tibia of normal 

 length; forewing normal, with veins 8 and 9 stalked 11 



11. Forewing with veins 3 and 4 stalked, vein 11 from 1/3 of cell; maxillary 



palpus drooping; all tarsi rough-scaled Trachycentra 



Forewing with veins 3 and 4 separate; vein 11 from 1/2 of cell; maxillary 

 palpus ascending; tarsi normal Holacarta 



12. Labial palpus porrected strongly flattened laterally, terminal segment oval, 



obtuse; large diurnal yellow and black, or orange and black colored species. 



Coryptilum 



