THE PMTIVTE-MOTHK OF CEYLON. 107 



Orneodiss trachyptera, Meyr. 



(Plate H, figure 11.) 

 Omeodes trachyptera, Meyrick, B. J., XVII., 134. 



" Male and female. 10-13 mm. Head, palpi, antennae, thorax, 

 and abdomen dark-fuscous, mixed with whitish : palpi with second 

 joint dilated with rough scales towards apex above and beneath, 

 terminal joint thickened with loose scales towards apex anteriorly. 

 Forewings with costa roughened with projecting dark fuscous scales, 

 except on the white markings ; whitish, densely irrorated with dark 

 fuscous, so as to appear dark gray ; costa with six or seven small 

 semioval oehreous- white spots, not reaching more than half across 

 first segment ; other segments crossed by about six series of ochreous- 

 white dots, united by outwardly oblique whitish dashes in the cilia 

 to form zigzag lines. Hindwings with ground-colour and zigzag 

 lines as in forewings. 



"Six specimens, Puttalam and Maskeliya, in March, May, 

 November, and December (Pole, De Mowbray)." 



This blackish little species, easily recognized by its roughened 

 costa, is further remarkable in having the maxillary palpi well 

 developed and clearly visible beyond the scaling of the head. It 

 should probably be separated generically from Omeodes. 



In Ceylon 0. trachyptera usually occurs in the dry jungly districts 

 of the low-country, where it sometimes comes into light freely. 

 My own specimens are from Wellawaya in November, 1905 (Green), 

 from Mankulam and Anuradhapura in November. 1908 (De Mowbray), 

 and from Nikaweratiya (between Puttalam and Kurunegala) at 

 light on November 11, 1909 (Ormiston). Mr. Meyrick tells me that 

 he has it from Eppawela and Rambukkana. 



Outside of Ceylon it is as yet known only from N. Coorg, 3,500 ft. 

 (Meyrick Coll.). 



Trisc^decia , Hmpsn. 



" Proboscis fully developed ; [labial] palpi with the second joint 

 porrect, about twice length of head and broadly fringed with hair 

 below, the third oblique, moderate ; antennae of male ciliated ; 

 tibiaa with projecting tufts of hair at the spurs. Forewing divided 

 into six plumes to rather more than one-third length (from within 

 two-thirds) ; the costa with six tufts of scales ; the scaling rough ; 

 vein 3 from well before angle of cell ; 4-5 from angle ; 6 from below 

 upper angle ; 7-8 stalked ; 9, 10, 11 from cell. Hindwing divided 

 into seven plumes to half length ; veins 3-4 from angle of cell ; 

 5 absent ; 6-7 from upper angle ; 8 free, from base." 



This genus is remarkable amongst the Orneodidse, not only in 

 the six-cleft hindwing, but in possessing well-developed maxillary 

 palpi — a feature which is unaccountably omitted from the original 

 description reproduced above. 



