360 



RUSICADA. By W. Warren. 



sabidifera. C. sabulifera Giten. (66a). Forewing rufous grey, generally speckled and striated with blackish, some- 



times clear; the space between outer and subterminal lines filled up with coalescent black specks; inner line 

 interrupted, marked by a double dark spot in submedian interval and another spot on inner margin beyond; 

 stigmata indistinct, darker; the orbicular round, the reniform oblong, often with the extremities dark; veins 

 sometimes paler; hindwing fuscous grey; fringe in both wings pale with dark spots in outer half beyond the 

 involii/a. veins; this, the type form, described by Guenee from an Abyssinian ?, is not so common as the ab. involuta 

 Walk. (= basalis Walk., colligata Walk., propinqua Btlr.) (52 n, 66 a), (wrongly named erosa on Plate 52; the 

 pink example is the ?, the grey the a 71 ), in which the colouring is like that of mesogona without the dark sha- 

 ding. The species occurs throughout Africa, India and the Malay islands to Australia; it is recorded in both 

 bipuncla. forms by Leech from Japan. Of each form an aberration occurs; in ab. bipuncta ab. nov. (66a) the reniform 

 ~ is marked by two black spots, the whole wing being generally uniform in colour, without grey striae; ab. 

 clathrata. ruficlathrata ab. nov. (66 a) has the dark fascia of the type form intensified, redbrown in cf, black brown in 

 costifuscata.9, the veins distinctly but finely delineated across it in paler; in ab. costifuscata ab. nov. (66b) the costal half 

 of wing from base to outer line and the median area below middle are dark, especially in the ??. 



Sect. Ill: Antennae of d 1 subserrate, pubescent and bristled. 



erosa, C. erosa Hbn. (= indica Gnen.) (66a). ?: Forewing yellow dusted with dull orange or greyish 



the lines fine, brown; the inner outwardly oblique and angled outwards somewhat sharply on the submedian 

 fold, more bluntly inwards on vein 1 ; outer line angled on veins 4 and 3, running inwards along 3 to below 

 reniform, then curved to meet inner line on inner margin; at the costa this line is followed by bluish white 

 scaling; a faintly marked lunulate dentate praesubmarginal shade indicates the subterminal line; orbicular 

 stigma oval, whitish, ringed with brown scales; reniform outlined with brown, 8-shaped, the inner edge straight 

 or curved, and with a double dark centre; fringe brownish with whitish tips; hindwing yellowish, usually 

 tinged with grey or fuscous; the cf is more thickly speckled, with the praesubmarginal shade and a band 

 beyond the lower half of outer line fuscous-tinged; the basal and terminal areas also are darker; hindwing 

 luteous more or less fuscous-tinged. This N. American form appears to occur throughout the tropics (under 

 the name indica Gnen.) along with xanthyndima, and both forms are found in Amurland, China, and Japan. 

 The larva attributed to it by Abbott is described as apple green, with white subdorsal and spiracular lines, 

 the space between them dotted with deeper green; head and feet green; feeding on Hibiscus. It is represented 

 with only 3 pairs of abdominal prolegs. 



mesogona. q # mesogona Walk. (= fructifera Leech) (66 b). Forewing greyish fawn colour, with sometimes, especially 



in the ?, a reddish, sometimes an olive tinge; covered in basal half with minute pale strigulations and speckled 

 with dark in the outer; the veins slenderly pale; lines pale brown, conversely, but very finely, paler edged; 

 inner line oblique basewards to middle of cell, then sloping outwards to median, thence vertical; outer line 

 angled outwards on vein 8, sinuate inwards to 4, incurved to below reniform, thence vertical; subterminal 

 line merely indicated by the darker shade preceding it, angled outwards on vein 4; reniform stigma marked 

 by two black spots connected by a grey shade; a dark spot at base of submedian fold; fringe darker; hind- 

 wing dull grey, without markings; the fringe paler. A wide spread Indian and Malay species; recorded by 

 Leech from Japan, Corea, Central and Western China. 



2. Genus: Rusicada Walk. 



Tongue present; frons smooth, roughened with scales; palpi as in Cosmophila; antennae of c? lamellate, 

 subserrate, with a few short bristles; forewing with the costa of d* lobed near base beneath, in some cases 

 very slightly or even not at all, in others so strongly as to produce a second slighter lobe above end of cell 

 Larva with 4 pairs of abdominal prolegs. Type: R. fulvida Guen. 



fulvida. R. fulvida Guen. (= combinans Walk., inducens Walk, nigritarsis Walk., revocans Walk., privata Walk., 



commoda Btlr.) (66b). Forewing ferruginous, mixed with yellow; lines purple brown, waved; the inner out- 

 wardly oblique, projecting below median vein; the outer indented beyond cell, incurved to below reniform, 

 thence vertical; subterminal line pale, with a grey shade before it; orbicular stigma a whitish dot ringed with 

 dark; reniform large, kidney shaped, its inner edge straight, the centre grey; veins grey dusted; fringe brown 

 in basal half, white with brown chequering in outer; hindwing fuscous. Larva blackish above, olive yellowish 

 beneath; a subdorsal series of short yellow streaks with yellow spots above them; spiracles black; head and 

 legs pale red; feeds on Waltheria indica. Widely distributed under various phases throughout the tropical 

 regions and occurring both in China and Japan; in the latter it is found in two forms neither of which agrees 

 subfulvida. with typical fulvida; in the form which is nearest to it — subsp. subfulvida subsp. nov. (66b) the ? has the 

 terminal half of wing more or less dulled with grey, while in the c? all the orange yellow ground colour is 



