46 DITHECODES; ANISEPHYRA. By L. B. Prout. 



6. Genus: Ditliecodes Wmt. 



Palpus short. Antenna in ^ ciliated. Hindtibia in both sexes with a single pair of spurs. Forewing 

 with areola double, the 2. subcostal arising from the cell or stalked. Hindwing with distal margin slightly 

 elbowed in middle, or rounded, the 2. subcostal connate or very shortly stalked with the 1. radial. 



Notwithstandmg the slight structural variations noted above, this in evidently a natural genus, agreeing 

 not only in the double areole and tibial armature, but even in the prevalence of dull greenish colouring, white 

 discal mark on hindwing and approximate size and shape of the species. The genus received two, or probably 

 three names m the course of the same year (1900), but the. one here adopted was published earliest. Mnesi- 

 thetis Swinh. is certainly a synonym, or at most a subgenus of it; Neosterrha Warr. probably a subgenus, with 

 very long fascicles of cilia on the (J antenna, but I have unfortunately not seen a $. The last-named section 

 is Neotropical, the other species belong to the Indo-Australian and African Regions, excepting the one or two 

 Japanese here given. 



D. erasa Warr. Both Warren's type ($) and a second $ which seems to agree with it are in wretched 

 condition, and it is impossible to give a perfect description, or to say definitely whether the species really 

 differs from the follomng; I am inclmed to suspect that they will prove to be forms of one and the same. 

 Wmgs dull pale greenish (fading to yellow), apparently without markings. Under surface paler. Face and upper 

 side of palpus blackish. Wing-expanse 30 mm; wmgs moderately broad, hindwing bluntly elbowed at 2. radial. 

 The type-specimen, m the Tring Museum, is from Japan, Avithout more exact locality; the second example, 

 at the British Museum, from Tokio. 



D. vacua Stvinh. Of this species, described by its author as a Hemithta, I have also only seen two or 

 three poor specimens, though not so deplorably bad as the preceding. Except that they have a large white 

 discal spot en each wing and faint traces of a curved postmedian darker Ime, the former less promment beneath on 

 account of the paler ground-colour, I can see no difference. The types in the British Museum are merely 

 labelled Japan; but a $ specimen ua my collection, for which I have to thank the generosity of Dr. E. A. 

 Cockayne, was taken at Nikko on 4 September, 1910, and Wileman has recorded one from Oyama, Sagami, 

 June. 1896. 



7. Genus: Aiiiscpliyra Warr. 



Face often protuberant. Palpus rather stout and rough-scaled, terminal joint short. Antenna in (J 

 rather strongly bipectinate, with apex simple. Hindtibia in both sexes with all spurs. Forewing with areole 

 simple, usually not very long, the first subcostal arising beyond the apex of the areole, often much beyond, 

 not infrequently opposite the fifth subcostal. Hindwing not tailed or sharply angled at extremity of second 

 radial, though sometimes very slightly bent; costal vein anastomosing with cell for a point or more, rather 

 gradually diverging, second subcostal from apex of cell or short-stalked, first median separate at its origin 

 from third radial. 



An mteresting little genus as probably standing somewhere near the phylogenetic base of the Cosymhia 

 section. The tendency to reduction in the length of the areole and longer anastomosis of the first subcostal 

 with the others as well as the scheme of markings (often with large or ocellated discal spots) are indications of 

 affinity with that section, and it is not impossible that the discovery of the early stages will necessitate its 

 removal thereto. On the other hand, in spite of its different habitus, its organic characters do not seem 

 greatly different from those of the two following genera. The stouter palpus and some slight neurational 

 characters are perhaps the chief distinctions. The few known species belong to the Indo-Australian Region, 

 and even the one here introduced only reaches the borders of the Palearctic. 



hrunnearia. A. brunnearia Leech (5f). Light brown, with a slight fleshy tinge. Forewing with small black dots 



on the veins indicatmg the position of the first line. Both wings with median shade and black-dotted postmedian 

 line ; the former on forewing weakly curved in S-shape, placed well beyond the cell, on hindwing crossmg the cell- 

 spot; the latter outcurved or outangled in middle. Dark discal spots, that of hindwing somewhat enlarged, 

 containing a pure white pupil. Under surface similarly marked, both the discal spots sometimes light-pupilled, 

 but neither distinctly so. Hiiidwing distinctly elbowed in middle, costal vein anastomosing at a point, then 

 rapidly diverging, first median close to third radial at origin; thus not a typical Anisephyra. Western China 

 in June. 



