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Show 1892.] THE LYCiENID^E OF THE SOUTH PACIFIC. 445 but as it is well known under the name C. platissa I do not care to suggest another alteration in its synonymy. The specimens I have examined show considerable variation in size (some specimens from Samoa Islands being little more than half that of others from the N e w Hebrides) and also in coloration, some which I consider typical having a greyish-black outer marginal line only, whilst others have the apex and outer margin broadly greyish. The undersides also show considerable differences-some having the spots and bauds brownish and distinct, in others, again, they are almost concolorous with the ground-colour of the wings. These variations cannot be traced to any particular locality, as a series from each shows all intermediates and extremes. TARUCUS, Moore. T A R U C U S PLINIUS. Hesperia plinius, Fabr. Ent. Syst. vol. iii. pt. 1, p. 284 (1793). Vate I., N e w Hebrides (Mathew) (Mus. G. &r S.). Mr. Miskin considers that the Australian insect should stand under the name pseudocassius, Murray. Such being the case, he must admit that T. plinius and T. pseudocassius occur together, as we possess specimens from India and Africa agreeing exactly with others from Australia. Mr. Mathew obtained a number of this insect in the N e w Hebrides, but I have seen it from none of the islands eastwards. There is in Messrs. Godman and Salvin's collection a single female, formerly in M r . Mathew's collection, labelled N e w Britain. POLYOMMATUS, Latr. POLYOMMATUS B^ETICUS. Papilio bceticus, Linn. Syst. Nat. i. 2, p. 789 (1767). Lyccena taitensis, Boisd. Voy. Astr., Lep. p. 77 (1832). Lampides taitensis, Butl. P. Z. S. 1876, p. 252. Espiritu Santo I., N e w Hebrides (Woodford). New Hebrides (Mathew). Tahiti, Society Is. (Boisduval). The specimens before m e agree exactly with some in our collection from W . and S. Africa, but are smaller and less densely covered with coarse scales than is usual in European examples. There can, I think, be no doubt that Boisduval's name is a synonym. ARHOPALA, Boisd. This genus apparently ends its range in the Solomon Islands, as no species of it has been recorded to the eastward. DEUDORIX, Hew. This genus, although well known to inhabit N . Australia and N e w Guinea with its adjacent islands, is, so far as I am aware, recorded PROC. ZOOL. Soc-1892, No. XXXI. 31 |