PANTANA. By Dr. E. Strand. 125 



wings appearing broad and truncate, extending far beyond the abdomen. Palpi rather slender and naked, 

 obliqiiely porrect and upturned. In some points the genus resembles Orgyia, but, apart from the palpi 

 already described, differs froni this genus in that the legs are less hairy and that the $$ have fully de- 

 veloped wings as well as bipectinate antennae, the pectinations being short. The cJ^ begin to fly already 

 after 5 o'clock in the evening sunshine, describing circles and loops in the air, their restless and tumbling 

 flight resembling that of Orgyia. They like to fly along the bamboo-fences with which the gardens and 

 court-yards are often surrounded in East Asia. Nets with long poles must be used for catching them, 

 as the moths fly up into the air when pursued. 



P. visum Hhn. (= dispar Walk.). In the ^J the head is orange-yellow, thorax light brown, ab- 

 domen whitish. Forewing yellowish white, variegated ^vith light red and brown in the costal half, excepting 

 however the middle of the costa and the discocellular ; two dark smears below the angle of the cell. 

 Hindwing pure white. Costal half of imderside of forewing orange, but black towards the apex. 44 mm. 

 — var. ampla Walk. (20 b). A ^ from South China, June 1891, gives rise to the following remarks, ampla. 

 According to the locality this specimen should be P. ampla Walk. I have not, however, been able to 

 discover from the descriptions a specific difference between the two species (visum and ampla), and I 

 cannot consider the specimens from India before me as specifically different from those from China. Only 

 two Chinese specimene weU enough preserved are before me. Walker and after him Hampson give the 

 presence of one or two dark smears on the middle of the forewing as a characteristic of visiitn. But such 

 smears are not distinctly present on either of the specimens before me, nor in Huebner's figure, while 

 there is a slight indication of them also in the Chineses specimen. According to Walker visum is slightly 

 larger than ampla, but Chinese examples (expanse 37, length of forewing 21 mm.) are quite as large as 

 the Indian ones before me. Hxiebner's figure is moreover so bad that the insect cannot with certainty 

 be recognised from it. Another difference is that the dark subapical spot on the underside of the forewing 

 is black in the Chinese specimen and nearly reaches the margin, while in most Indian examples it is 

 more brown-black and slightly removed from the margin, but this does not seem to have any significance. 

 Walker had already drawn attention to the two forms being probably varieties of one and the same 

 species. The form visum inhabits Burma. 



P. sinica Moore. ^ greyish white; forewing at the base, costal and distal margins smoky brownish, niiuca. 

 A black cliequered irregular spot between the veins below the cell. Thorax smoke-browai ; the frons and 

 palpi ochreous. Abdomen and legs grejdsh white. Pectinations of antennae dark bro\vn, shaft grey. 32 mm. 

 In East and Central Cliina. — Leech (1899) described a ,^ from Chang-yang, but did not name it, in 

 which the liindwing is pure white with a broad marginal band extending from the costa almost to the 

 anal angle: ab. limbifera nom. nov. Hmhifera. 



P. bicolor Walk. (= dehneata Walk., circumdata Walk., sorchda Walk., comparata Walk.) (20 h), bicolor. 

 distributed over the gieater part of continental India, also its north, has the head, collar, palpi and last 

 segments of abdomen orange, while the basal segments are white. Wings yellowish white, forewing slightly 

 suffused with a darker colour between the veins, the hindwing with dark marginal band interrupted by the 

 veins. Below, the greater part of the forewing aiid a discal smear on the hindwing are dark. $ with 

 scarcely a trace of darker colour. 



P. nigrolimbata Leech, from West China, has orange-yellow head and palpi, dark thorax and abdo- nigra- 

 men. Forewing white, with black band, which is widest anteriorly and interrupted below vein 2; a black '""''m^- 

 spot at the hind angle of the cell and two similar but larger spots beyond the cell. Hindwing white, 

 with black marginal band from the costa to vein 3. $: Forewing ochreous white, with black spots as in 

 the (J, but without marginal band. Hindwing dirty white, without markings. 48 to 54 mm. 



P. simplex Leech, likewise from West China, has light blackish brown foremng with the venation simplex. 

 lighter in parts; costa with light brown transverse streaks to the apex of the cell. Discocellular spot lunu- 

 lar and light brown. Costa and fringes darker. Hindwing M'hite. Head and thorax like the forewing. 

 Palpi golden brown. Abdomen lighter. ^J 34 to 40 mm. 



P. pluto Leech has black-brown wings, forewing slightly lighter at the apex of the cell, underside pMo. 

 a little lighter than upper. Legs, thorax and abdomen dirty yellowish wliite; head and palpi light orange. 

 (J 36 mm. Typical locality: I-chang in China. 



P. eurygania Druce, from Southern Central Ching (Chang-yang, Sze-chuen). c? ' Head, antennae, eurygania. 

 thorax, tegulae, legs and abdomen black. Forewing black, with a white spot at the apex of the cell and 

 a larger white spot below the cell reaching to the inner margin. Hindwing white, black at the base, 

 margin with a broad black band from the apex almost to the anal angle. (J 32 mm. 



