DYCTIS 353 



5. VicicoLES. S. Roxelana, Mocra, Megsera, Tigelius, -^geria. (Genus Lasiommata.) 



6. Ramicoles. S. Dejanira, Hyperanthus. 



7. DuMicoLES. S. Qldipus, Hero, Aroanius, Iphis, Davus, Pamphilus, &c. (Genus Ccenonympha.) 



8. Arcticoles. S. Aello, Noma, Tarpeia, Bore, Bootes, Phryne. (Genus Chionobas.) 



9. Alpicoles. S. Epiphron, Melampus, Cassiope, Mnestra, Blandina, Ligea, &c. (Genus Erebia.) 



Such a classification, although very useful as regards the European species, can scarcely be applied to the entire family ; nor are, 

 indeed, M. Duponchel's groups of equal importance. 



Genus I. DYCTIS. 



Dyctis Boisduval. 

 Hyades p. Boisduval. 

 MoRPiio p. Guerin-Meneville. 



Body small, downy ; wings large, with all the cells closed ; fore wings with the costal vein dilated at the Ijase ; hind 



wings with a minute prediscoidal cell. 

 Head wide, slightly hairy, not tufted in front. 



Eyes large, naked. 



Antennw about two fifths of the length of the fore wing, very slender, and terminated by a long and gi'adnally 

 formed, but very slender, club, finely carinated beneath. 



Labial Palpi porrected forwards to about the length of the head, and directed obliquely upwards, but not 

 reaching the level of tlie tops of the eyes ; hairy beneath at the base ; the long second joint also hairy on the 

 back towards the face, the front very slightly hairy ; terminal joint distinct and slender. 

 Thorax rather small, compressed, and pulverose, slightly hairy. 



Fore Wings large, triangularly ovate. Costal margin arched ; apical angle rounded. Apical margin convex, 

 very sliglitly scalloped ; inner angle rounded. Inner margin nearly straight in both sexes. Costal vein 

 reaching to half the length of the costa, considerably swollen at the base of the wing. Subcostal vein slender; 

 with the first and second branches arising before the anterior extremity of the discoidal cell ; third branch 

 arising at about three fifths, and fourth branch arising at about three fourths, of the length of the wing ; this 

 fourth branch extending to the tip of the wing. Upper disco-cellulnr vein extremely short, arising at about 

 three sevenths of the length of the wing; middle disco-cellular short, oblique, directed backwards towards the 

 base of the wing ; lower disco-cellular nearly four times as long as the middle one, very much curved 

 inwardly, emitting, at equal distances apart, two very delicate veinlets, running into the discoidal cell, uniting 

 together at a short distance from the base of the wing ; the lower disco-cellular unites with the median vein 

 close to the base of its third branch, which is considerably and regularly curved. Postmedian vein rather 

 sinuated towards the base of the wing. 



Hind IVini/s broadly ovate, somewhat angulated at the outer angle. The costal margin rounded. The apical 

 margin slightly scalloped ; anal angle rounded. Anal margin deeply grooved. Costal vein scarcely extending 

 beyond one third of the length of the costa. Precostal vein forked: the upper branch of the fork straight, 

 short, and erect ; the lower branch oblique, and uniting with the costal so as to form a small prediscoidal cell. 

 Postcostal vein with its branch arising at about two sevenths of the length of the wing ; the bi'anch short, and 

 extending only to about two thirds of the costa. Upper disco-cellular short, curved ; somewhat more 

 transverse than represented in our figure, as is also the much longer lower disco-cellular ; the latter joins the 

 median vein exactly at the origin of the third branch, which is much curved. The disc of the hind wings is 

 furnished on the upper side, in the males, with a long narrow patch, within the outer edge of the discoidal 

 cell, clothed -with long silky hairs, which is ordinarily covered by the hind margin of the fore wings. The base 

 of the costal and postcostal veins are also dilated beneath in this sex. 



Fore Legs of the male very small and slender. The tibia and tarsus slightly atteiniated and scarcely pilose. 

 Fore Legs of the female rather longer than those of the male. The tibia and tarsus gradually dilated and 

 compressed. The tarsus obliquely truncate at the tip, and furnished with several minute spines in the 

 truncated part, hidicating the articulations, which are concealed by the thick scales. 



Four Hind l^ajs wanting in the specimens examined. 

 Abdomen small, and moderately robust. 



The two insects upon which M. Boisduval has sufrjrcsted tlic establishment of the pn-scnl jiciius uiy, natives of New Guinea ; and 

 will probably hereafter be ascertained, as he ingeniou.sly suggests, to be the sexes of but one species. That which is represented in our 

 Pi. LIV*. fig. 4. is a female; the under siilc ditlering only from tlio ujiper in the discoidal patch of the hind wings being nuich larger. 



