300 



Of the female similar in size and shape to those of the male, except that the tarsus is articu- 

 lated and nnguiculated like those of the four hind legs. 

 " Hind Iff/s short, slender. 



" Labva onisciform, gibho-srutate or oblong-scutate, with the head and feet small and scarcely 

 perceptible ; the body laciniate, and the back convex and generally beautifully coloured. 

 Ptqm oblong, very convex, smooth, obtuse at each end, and marked with obscure spots : in a 

 few species armed witli short acute tubercles." ( Wcsfivood, 1. c.) 



As many species originally placed in the genus Lyccena have been removed 

 therefrom and placed in other genera, Mr. de Niceville has modified and 

 amended Westwood's diagnosis, as given above, so as to bring it more in 

 accord witli the restricted sense in which the genus is now understood. 



Ly( 



rcaena aegon. 



PapU'io tcgon, ScliilTcrmiller, Wien. Verz. p. 185 (irrO). 

 Papilio aryyrotoxiis, Bergstrasser, Nomen. ii. p. 77 (1779). 



Lycana mjon, Lang, Butt. Eur. p. 103, pi. xxiii. fig. 1 (1884) ; Pryer, Rliop. Nilion. 



p. 18, pi. V. fig. 2 (1880). 

 Lymna micrargus, Butler, Cistula Entom. ii. p. 283 (1873). 

 Lycana pseud(cyon, Butler, Proc. Zool. Soc. Loud. 1881, p. 851. 



" Expands 0-00 to MO inch. The male has all the wings deep blue, rather inclining to violet, 

 with a narrow brownish-black hind marginal border. The hind \Vings have some faint brown 

 spots along the hind margin. . The fringes of all the wings are broadly white. The female 

 is brown, with faint traces of an orange band along the hind margin of the fore wings ; the 

 hind wings have a more distinct orange hind marginal band, most conspicuous towards the 

 anal angle, and enclosing four or five black spots. Underside grey : in the female with a 

 tinge of brown ; the hind margins of all the wings with a double row of black spots, 

 enclosing an onuige band; internal to these an irregular central row of black spots, 

 flurrounded by white rings. The fore wings have n roinid diseoidal spot similarly surrounded 

 by white, and no basal spots ; the hind wings have four spots betwoeu the central row and 

 the base, two of them nearly toucliing the costa. The bases of all the wings are strongly 

 tinged with blue in Ihc male, more faintly so in the female. The outermost spots of lower 

 hind marginal row arc minutely studded with mctnllic silvery blue. The anterior tibia3 are 

 furnished with short spines." (Lanr/, I. c.) 



Larva. " bright yollow-grcen, with the dorsal stripe blackish brown edged with whitish from the 

 beginning of the third to the end of the tenth segment ; it is widest on tlie third and fourth, 

 l>oing on them of a rather rounded lozenge lonn, with a whitish dot near the edge on each 

 Hide : a dnil dark brown small plate in tr„„l u{ Mio second segment, and a broad scmilunar- 

 Hha|.cd blotch of the same colour a little bchinrl, divided in the nu'ddle by a fine lino of the 

 grocn ground-colour. The dorsal stripe on the eleventh segment becomes l.road and s.iuarish, 

 but re„umrH .(m linear sliapo on the twelfth and thirteenth. Th(> subdorsal line is visible 

 Irom the hoKU.ning of the third to the end of the eleventh segment as a greenish-yollow lino 

 nint.ing between two green ones darker tlian tlie gn.uiul-colour. At tlie bottom of tlio side 



