MICROLEPIDOPTERA OF PHILIPPINE ISLANDS 115 



Type species: Amorbaea hepatica Meyi-ick, 1908, India, 

 Recently the genus has been removed from the synonymy of 

 Ptochoryctis Meyrick by Clarke because of slight differences in vena- 

 tion. There was only one species, the males of which were not yet 

 known. Now the following species proved to belong here. The male 

 {suhtusvena) appears to have vein 8 not connected with the upper 

 edge of cell in the hindwing by an obhque bar, but fused with it 

 toward base, which somewhat resembles the situation in certain 

 Noctuidae (Phalaenidae). This venation proves that Amorbaea is 

 indeed very close to Ptochoryctis; however, the male genitaUa are 

 quite distinct from any other genus in the family. 



Male genitaUa: Uncus strongly sclerotized, bifid, two robust hooks. 

 Vinculum long, erected. Valva sclerotized throughout, except ex- 

 treme top of cucullus, strongly narrowed, costa concave; harpe, a 

 longitudinal toothed blade. Sacculus broad at base, with a promi- 

 nence beyond middle of upper edge. Anellus tubular, curved, strongly 

 narrowed. Aedeagus one third longer than anellus, slender. 



Key to the Philippine Species of Amorbaea 



1. Head and thorax snow white; genital segment in female with caudal edge 

 slightly emarginate, rostral edge rounded . . A. subtusvena, new species 

 Head and thorax creamy colored; caudal edge of genital segment in female 

 deeply emarginate, rostral edge with two submedian emarginations. 



A. subusta, new species 



Amorbaea subtusvena, new species 



Figures 149, 157, 584, 807 



Male, 22 mm. Head, palpus and thorax snow white. Antenna 

 white above, flattened dorsoventrally, long-bipectinated, pectinations 

 unequal, outer 2, inner 4, black, cihations white. Abdomen glossy 

 white, bands of bristles coppery, except narrow white posterior edges 

 of segments. 



Forewing glossy white, veins thickened, raised, dull white. Costa 

 moderately curved at base, more so towards apex, apex obtusely 

 pointed, termen Uttle curved, obhque. Cilia glossy white. 



Underside of wing sordid white, veins fuscous golden, becoming 

 bronze grey in certain hghts, terminal edge suffused with the same 

 color. 



Hindwing glossy white, veins yellowish tinged, underside as in 

 forewing but less distinctly so, except lower edge of cell and veins 2-4. 

 Ciha white. 



Female, 23-27 mm. Similar to male, but forewing faintly touched 

 throughout with yellowish golden, more so along dorsum. Underside 

 denser suffused throughout with fuscous bronze. 



