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XVI. A monograph of the genus Ogyris. By George T. 

 Bethune-Baker, F.L.S., F.Z.S. 



[Read April 5th, 1905.] 



Plate XV. 



This genus was established and described by Doubleday 

 and West wood in their Gen. Diurn. Lep. II, p. 472, 1850, 

 where they figured the $ of 0. dbrota and used this species 

 int heir description of the family. It is a well-marked 

 genus, and as a consequence later authors have had no 

 difficulty in their descriptions of new species, all having 

 been described under the one genus. Hewitson described 

 and figured his several species in his Exotic Butterflies, vol. 

 I, and his Spec. Cat. Lye. B. M. ; whilst in his 111. Diurn. 

 Lep. Lycsenidge, he again refers to the group and sinks his 

 orontas under his idmo. The Feklers also use the genus 

 in the descriptions of their two species, whilst all later 

 authors have likewise used it. 



The genus is confined to the Australian sub-region, all 

 the species but one being found on that continent 

 (Australia) : one species has been recorded from Kangaroo 

 Island as well, whilst one is confined to New Guinea. All 

 the species are beautiful in. colour, whilst several rival the 

 Morphos in the brilliancy of their blues. 



I am indebted to Mr. G. A. Waterhouse of Sydney for 

 very many particulars relative to the life histories of the 

 species and also for the loan of a large number of specimens. 

 Mr. F. P. Dodd has also furnished me with many interest- 

 ing facts about 0. zosin'e, Hew., and hcivitsoni, Waterh., 

 whilst Mr. R. E. Turner and Mr. H. H. Druce and Mr. 

 Tepper have kindly lent me specimens of 0. xnonc, 

 Waterh., 0. barnardi, Miskin, and 0. hahmaturia Tepper. 



The ova are either nearly spherical, or somewhat com- 

 pressed at each end of the axis, whilst some are strongly 

 reticulated. The larvse, so far as is yet known, are all 



TRANS. ENT. SOC. LOND. 1905. — PART III. (OCT.) 19 



