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Show 253 MR. R. SHELFORD OX MIMETIC INSECTS AXD [Nov. 4, Fam. LYCiENID-ZE the hind wings. Both mimic and model were taken in daytime in the Botanic Gardens, Singapore, and both were equally conspicuous ; subsequently both species were found in Sarawak l. The following species are discussed below :- Mimics. Models. f"Symbrenthia hippoclus Subfam ^ with the mountain forms. ! Yellow-and-black Neptin, , T . ; 7-‘ S. hypatia var. hippocrene f e. g . N. hordonia, N .tiga &c. ymp in nice. , an(j hypselis var. balunda. J [^Athyma spp........................................ White-and-black Neptis. TThrix gama ................................... 'Eoxylides tharis. Poritia p lateni..................... ^ C Drupadia boisduvalii var. atra. l^Araotes lapithis ................. j \ liiduanda thesmia. N otes ox T a b l e IV. The females of Euripus halitherses (D. & H.) are extremely variable, in fact no two specimens of the fine series of this species in the Sarawak Museum collection are exactly alike, and almost every specimen deserves a varietal name of its own, as has been done to a certain extent for the mimetic Papilio paradoxus telesicles (Feld.) by Rothschild & Jordan (Nov. Zool. vol. ii.). It is possible, however, to distinguish three main groups. One, almost entirely dark blue, is a mimic of Trepsichrois mulciber (Cr.), and approximates to E. cinnarnomeus (Wood-Mason). Another is dark brown with a blue gloss and an oblique discal white fascia on the fore wings and some white streaks on the hind wings, and is a close mimic of Danisepa lowei (Butl.) S ; this group is nearest to E. pfeifferce (Feld.). The third group, near E. euplceoides (Feld.), corresponds closely in coloration and markings with Danisepa lowei $ . A considerable number of variations of this highly variable species have been separated into distinct species, but I prefer to regard these as merely varietal names. The females of Danisepa rhadamanthus (Fab.) (the continental form of Danisepa lowei) have much more white on the upper side and are readily distinguishable from the Bornean representatives, though the males are practically indistinguishable. In accordance with this, the continental forms of Euripus halitherses $ of the euplceoides type have larger white markings on the upper side than the insular forms ; I have not seen continental forms of Isbarta rhadamanthus (Fab.) or of Papilio caunus (Westw.), but I expect that a parallel variation will be found in these. It is curious that the almost identical males of D. rhadamanthus and D. lowei are extremely common in their respective localities, whilst, on the other hand, the female of D. lowei is very rare, and the very different female of D. rhadamanthus is as common as its male. Hypolimnas anomala (Wall.) is very Euploeine in its flight as well as in appearance ; it is not an uncommon species and the * [A closely similar example of Mullerian mimicry was sent for exhibition to the Entomological Society in 1894 by Mr. G. A. J. Rothney (see Proc. Ent, Soc. Lond. 1894, p. xv). The species Phauda flammans (Walk.) and Serinethci augur (Fab.) were observed in abundance on roots and trunks of trees in Mysore in Nov 1893 bv Mr. Rothney.- E. B. P.] ‘ J |