536 MESSES. H. H. DEUCE AND Q. T. BETHUNE-BAKER ON [Juue 20, 



The following papers were read : — 



1. A Monograph of tlie Butterflies of the Gemis Thysonotis. 

 By Hamilton H. Druce, F.Z.S., and G. T. Bethune- 

 Baker, F.L.S.' 



[Eeceived June 20, 1893.] 



(Plates XLV.-XLVII.) 



Thysonotis. 



Thysonotis, Hubn. Verz. bek. Schmett. p. 20 (1816); Feld. 

 "Wien. ent. Mon. iv. p. 244 (1860). 



Danis, Fabr. 111. Mag. vi. p. 286 (1807) (nom. praeoc.) ; Westw. 

 Gen. Diurn. Lap. p. 497 (1852). 



Damis, Boisd. Voy. Astr., Lep. p. 67 (1832). 



Plebekis, Cujndo, Lyccena, Authors (part.). 



Danis, Butl. Cat. Fab. Lep. p. 161 (1869) (part.). 



Danis, Miskiu, Ann. Queens. Mus. no. 1, p. 49 (1891). 



" General characters of Lyccena ; but with the wings generally 

 broadly fasciated with white, not ocellated beneath, but the hind 

 ones marked beneath with a submargiualrow of black spots. Eyes 

 hirsute. Antennae termiuated by a long, gradually formed club. 

 Labial palpi long, first two joints clothed with scaly hairs. Fore 

 wings with the post-costal vein three-branched ; the third branch 

 arising at a considerable distance beyond the discoidal cell ; middle 

 and lower discocellular veins very slender; upper one short, distinct. 

 Hind wings entire, or scolloped, and with a short tail at the 

 extremity of the first branch of the median vein. Fore legs of the 

 female short. Basal joint of the tarsi much thicker than the rest 

 and elongate, spined at the tips of the joints."^ — Westw, loc. dt. 



" I am unable to give a satisfactory detailed character of this 

 genus, having only been able to examine a very imperfect female 

 in the collection of the Linneau Society, from which the accom- 

 panying figure was taken. It appears very (perhaps too) close to 

 Lyccena, D, liylas resembling the tailed Indian species of that genus. 

 The blue colour of the upperside is particularly brilliant, and the 

 species inhabit the Moluccas, New Guinea and the adjacent 

 islands."- — Westii'. ibid. 



On reference to the accompanying plate it will be seen that 

 the genus Thysonotis can at once be distinguished from Lycxvna by the 

 anastomosing of the costal nervure with the first subcostal nervule. 

 It is also remarkable for the length of the terminal joint of the 

 palpi of the female. 



In 1779 ^ Cramer described a butterfly and figured it under the 

 name Papilio danis. 



In 1804 Herbst referred to and refigured the same insect under 



^ Mr. G. T. Betlume-Baker is responsible for the descriptions and drawings 

 of the genitalia of the various species, whilst I am responsible for the synonymy 

 and notes concerning the species. — H. H. D. 



^ 1775 according to Mr. Kirby, Ent. Mo. Mag. xiv. p. 278. 



