XII, D, 2 Muir: Derbidse of the Philippine Islands 57 



segment ; dorsal edge entire, slightly curved dorsad, ventral edge 

 produced at about middle, apex blunt, turned slightly inward. 



Length, 3 millimeters; tegmen, 5.5. 



Luzon, Tayabas, Mount Banahao (Baker). 



Genus NESOKAHA Muir 



Nesokaha lineata Muir. 



Nesokaha lineata Muir, Proc. Hawaiian Ent. Soc. (1915), 3, 120. 



Male. — Ventral edge of pygophor straight; lateral edges ob- 

 tuse-angularly produced; anal segment long, narrow, subpar- 

 allel-sided, apex truncate, turned ventrad, anus at apex; genital 

 styles narrow, reaching end of anal segment; apex bluntly 

 pointed, turned inward. 



This species was originally described from a female. 



Luzon, Tayabas, Mount Banahao (Muir), on young coconut 

 palms. 



Nesokaha philippina Muir. 



Nesokaha philippina MuiR, Proc. Hawaiian Ent. Soc. (1915), 3, 119. 



Luzon, Mount Banahao (Muir) , one female on a coconut palm. 

 Nesokaha rubrinervis sp. nov. 



Male. — Clypeus, face, vertex, thoracic nota, and abdomen 

 dark reddish fuscous; antennae, subantennal plates, thoracic 

 sternites, and legs yellow; a fuscous mark between first and 

 second coxse. Tegmina dark reddish fuscous, veins red, costa 

 and apical veins lightest, subcostal apical cell slightly hyaline; 

 wings dark fuscous, veins reddish. 



Ventral edge of pygophor straight, lateral edges very slightly 

 arcuate, anal segment longer than wide, sides slightly arcuate, 

 apex roundly emarginate, anus at apex; styles narrow, reaching 

 end of anal segment; apex subtruncate, turned slightly dorsad; 

 a faint carina runs longitudinally along outer surface and is 

 produced at apex into a small point. 



Female. — Pregenital sternite convex, posterior edge obtusely 

 produced to middle, a narrow emargination from apex of pro- 

 duction to middle of sternite. 



Length, 2 millimeters; tegmen, 3.5. 



Luzon, Tayabas, Mount Banahao (Muir), on young coconut 

 palms. 



Nesokaha nigropunctata sp. nov. 



Male. — Carinse of face contiguous. Yellow; head and pro- 

 notum lighter, dorsum of abdomen fuscous, tegulse black. 



