1895.] ME. H, H. DEUCE ON BOENEAIir LTC^NID^. 613 



The male described above is from Dr. Staudluger's coUectioD, 

 and has the same number of subcostal nervules in the fore wing as 

 the female, but has two tails only in place of three. The type (a 

 female) is now in Messrs. Godman and Salvin's collection, but is 

 somewhat mutilated, having lost its head and fore legs. The 

 figure given in the P. Z. S. is a fairly good one, excepting that the 

 median line on the fore wing is too distinct. 



K. { = S.) helena, Eober, Iris, i. pt. 3, p. 198, pi. ix. fig. 6, is a 

 closely allied species (if, indeed, it is distinct), which appears to 

 have the purple colour rather less extensive on both wiugs. 



BiDiTANDA, Distant. 



Below will be found described two remarkably interesting new 

 species of this genus, viz. B. similis and B. imitata, both of which 

 agree exactly in venation with the type of the genus, B. thesmia, 

 Hew., and possess three subcostal nervules to the fore wing. They 

 are remarkable in both being identical in other respects with two 

 well-known species of the genus 3Iannessus ', Hiibn., — B. similis 

 being like M. moorei. Distant, whilst B. imitata is again the fac- 

 simile of M. boisduvalii, Moore. Boisdiival (Spec. Gener. i, pi. 22) 

 figures both 31. lisias, Fab. ( = M. boisduvalii, Moore), aud M. ra- 

 vindra, Horsf., with three subcostal nervules to the fore wing ; but 

 as these drawings are obviously incorrect — the costal nervure 

 appearing to be given off from the subcostal nervure — I do not 

 think any reliance can be placed upon them, at any rate M. ravindra 

 and M. boisduvalii, as we now know them, have not this third 

 subcostal nervule. 



BiDUANDA THESMIA. 



Myrina thesmia. Hew. 111. Diurn. Lep., Lye. p. 32, pi. xiv. 

 figs. 25-27(1863). 



Labuan {Low); Sarawak {Wallace, Wahnes). 



Messrs. Godman and Salvin's collection contains two female 

 specimens, which agree with Hewitson's type and also with a 

 Sumatrau female. Wahnes has also sent it to Dr. Slau dinger 

 from Labuan. 



Var. UNicoLOE. 



Sithon thesmia, var. unicolor, Staud. Iris, ii. p. Ill (1889). 



Labuan {Low) ; Sandakan {Pryer) ; Elopura {Fryer) ; Kudat 

 {Mus. Druce) ; Kina Balu ( Waterstr.). 



This appears to be the common form in Borneo aud agrees 

 exactly with Dr. Staudinger's type from Palawan. Some females 

 are entirely without the white scales at the anal angle of the hind 

 wings. 



It is distinguished from the typical form by the underside being 

 dull reddish brown in place of rufous orange. 



^ Mr. de Niceyille states that this name should be used in place of Drupadia 

 Moore. 



