82 [April, 



The Lycsenidse were conspicuously ill-represented — not a single 

 example of the Gerydinas or of the large sub-family of Arhopalinse (of 

 which some 60 species are known from Borneo). The 9 specimens 

 captured are Nacaduba ? atrata, Horsf., 2 ; A T . ardalrs, Moore, 1 ; Lant- 

 pides coruscans, Moore, 1 ; L. ? zebra, Druce, 2; Curetis thetys, Drury, 1 ; 

 Biduanda thesmia, Hew., 1 ; Dacalana vidura, Horsf., 1. 



The Pierkhe captured are Catophaga paulina, Cram., 1 ; Catopsilia 

 crocale, Cram., 5; C. pyranthe, Linn., 3 ; Terias sari, Horsf., '■'> ; T. 

 hecabe, Linn., 2; T. til a ha, Horsf., 2; Leptosia x'qihia, Fab., ■> ; 

 Prioneris vollenhovei, Wall., 1 ; Huphina hespera, Butl., 3. 



The PapUiiiiiidw are P. heienns j aJawanicus, Staud., 3 ; P. nephritis 

 satvrnus, Cuer., 3 ; P. memnon, Linn., 6 ; P. sarpedon, Linn., 4 ; P. eventon , 

 Boisd., 13; P. eurypilus axion, Feld., 4; P. bathycles bathycloides, 

 Honr.,3; P. agamemnon, Lion., 3, and the Euplceine mimic, P. cav/nus 

 mendax, Rothsch., 1. 



There is a noticeable absence of the high-flying conspicuous 

 Ornithoptera and Troides. 



The swift-flying Hesperiidse are represented by two specimens 

 only, Taractrorrra ardnnia. Hew., l,and one ? sp. very worn. 



The collection brings out the following points : — 



(i) l']njilni,ii and Dcmaini are the most abundant, most easy to 

 capture, and most conspicuous butterflies of the Oriental region, and 

 therefore fulfil the requirements or answer to the definition of principal 

 models in a Mullerian mimetic combination. 



(ii) The Papilionine, P. /■annus mendax, which so beautifully 

 mimics the distasteful Euplcea diocletianus lowei, being taken together 

 with that species, affords yet further corroboration of the statement 

 that models and mimics are undoubtedly found together in the same 

 place and at the same time. 



(iii) In accordance with the theory of mimicry the distasteful 

 models are numerically superior to their mimics. The collection 

 shows 20 individuals of the model, Euplcea diocletianus lowei, to 1 of 

 the mimic, Pajiitio cannns inenda.r, and none of the other two Bornean 

 mimics, Enripus haflfhews $ form isa, Moore (the Nymphaline), or 

 Mimeuploea rhada ma ntha, Butl. (Chalcosid moth). 



(iv) The absence of Lycsenidse and Hesperiidse in. this collection 



demonstrates their capabilities for taking care of themselves, the 



former principally by protective colouring, and the latter by their 



swift flight, in addition to sombre colours.* 



* It is also probable that more attention \va» devoted to the larger butterflies. — E. 13. PotJLTON. 



