82 [April, 



The Lycamidas were conspicuously ill-represented — not a single 

 example of the Gerydinse or of the large sub-family of Arlwpalinss (of 

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

 captured are Nacadnba ? atrata, Horsf ., 2 ; N. ardates, Moore, 1 ; Lam- 

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

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



The Pieridae captured are CatojjJiaga panlina, Cram., 1 ; Catopsilia 

 crocale, Cram., 5 ; C. jjyranthe, Linn., 3 ; Terias sari, Horsf., 3 ; T. 

 hecabe, Linn., 2 ; T. tilaha, Horsf., 2 ; Leptosia xiphia, Fab., 5 ; 

 Prioneris vollenhovei, Wall., 1 ; Hupliina hespera, Bi;tl., 3. 



The Papilionidx are P. helenus palawanicus, Stand., 3 ; P. nephelns 

 saturnus, Guer., 3 ; P. memnon, Linn., 6 ; P. sarpedon, Linn., 4 ; P. evemon, 

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

 Honr., 3 ; P. agametmion, Linn., 3, and the Euplceine mimic, P. catmus 

 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, Taractrocera ardonia, Hew., l,and one ? sp. very worn. 



The collection brings out the following points :■ — • 



(i) Euploeini and Danaini are the most abimdant, 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 Miillerian mimetic combination. 



(ii) The Papilionine, P. cawius mendax, which so beautifully 

 mimics the distasteful E%ploea diocletianus loivei, 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 distastefvd 

 models are numerically superior to their mimics. The collection 

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

 the mimic, Papilio caunus mendax, and none of the other two Bornean 

 mimics, Euripus halitherses $ form isa, Moore (the Nymphaline), or 

 Mivieuplaia rhadamantha, Butl. (Chalcosid moth) , 



(iv) The absence of Lycienidse and Hesperiidie 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 moie attention was devoted to the larger butterflies.— B. B. Poulton. 



