MICROLEPIDOPTERA OF PHILIPPINE ISLANDS 183 



Material examined: Luzon, Benguet Subprov., Klondyke, 800 ft., 

 29.IV.1912, 1 d", holotype, genit. slide 5594; same locality, 12. III. 1912, 

 1 d", paratype, genit. slide 5592; 26.III.1912, 1 cf, paratype (A.E. 

 Wileman) (BM). 



Closely allied to C. hesitans, differing by grey hindwings and 

 genitalia. 



Chrysonoma inermis, new species 



Figures 267-269, 656 



Female, 12.5 mm. Head and thorax whitish, touched Adth creamy. 

 Antenna whitish, faintly light grey posteriorly. Palpus whitish, 

 median segment touched with fuscous below apex; terminal segment 

 faintly infuscated at extreme base. Abdomen whitish ochreous. 



Forewing ovate-sublanceolate, costa moderately curved, more so 

 posteriorly, apex obtusely rounded, termen rounded, rather obUque. 

 Whitish, touched A\'ith creamy. Markings blackish fuscous. First 

 discal stigma slightly elongate, phcal stigma well beyond it, second 

 discal larger, conspicuous, rounded; dark scales sparsely scattered 

 so as to form irregular groups: one on costa above second discal 

 stigma and a transverse group haKway between cell and termen, 

 from costa to above tornus, denser above; a series of dots between 

 veins just before tornal edge and in apex. Ciha whitish creamy with 

 fuscous-grey tips, limited greyish dusting at base opposite apex. 



Hindmng and ciUa glossy whitish, faintly touched wdth greyish. 



Female genitaUa: Sixth sternite modified, with a median excision, 

 flanked by subtriangular lobes. Lamella antevaginahs forming a 

 small dark semioval sclerite before ostium bursae; 8 + 9 segment 

 annular, strongly depressed, hairy. Corpus bursae elongate-plume- 

 shaped. Signum substellate. 



Material examined: Luzon, Benguet Subprov., Klondyke, 800 ft., 

 3.V.1912 (A.E. Wileman), 1 9, holotype, genit. sUde 5595 (BM). 



A small species of obscm-e affinity. 



Tonica Walker, 1864 

 Key to the Philippine Species of Tonica 



1. Unicolorous white, finely dusted with pale tawny towards costa, an oblique 



raised transverse crest in disc T. argessa, new species 



Not unicolorous white, markings distinct 2 



2. Markings jet black, a conspicuous spot in apex, an oblique mark at 1/4 of 



costa; ground color white, touched with yellow. 



T. citrantha, new species 



Markings brownish, a marginal series of dots along posterior half of costa 



and in apex; ground color pale ochreous, more or less brownish suffused. 



T. lagaropis 



