258 HIPPOTION; THERETRA. By Dr. K. Jordan. 



the costal and distal margins of the foreM'iiig more greyish retl. and the distal marginal hand of the hindwing 



siij/iisa. very narrow and red. Specimens in which the hindwing is strongly shaded with black are ab. suffusa Tutl. In 



lutcficcits. ab. lutescens Cock, the red colour is replaced by yellow. In ab. indistincta Tutt the normally red portions are 



indisUncUi. reddish grey, and the marginal band of the hindwing is diffuse and has only traces of red. Finally, in ab. gal- 



ija ana. ^^^^ iJiUmer the foreuing is extended greenish yellow without red costal spots and transverse band and witliont 



colossus, dark brown transverse lines. — colossus Bang-H. (42 b) is larger than porcellus; the forewing is less bright 



red at the costal margin, but is more extended bright red before the hind margin. Algeria. In Mus. Tring from 



Batiia and Les Glacieres de Blida, at the latter place collected by us at the lamp early in June. 



siulliis. p. suellus ;S/^r. (42 b). Pronotum with a grey edge. Thorax with distinct grey lateral streak. Abdomen 



M'ith a yellow lateral spot at the apex of segments 5 and 6. Neither the body nor the wings Mith Ijright red 



colour. Fringes spotted with brown. Forewing with a brown discal band which tapers behind; distal margin 



of hindwing brown, without red. Costal margin of hindwing beneath grey, irrorated with brown. — Asia Minor 



and Transcaucasia : occurs in the latter district together M'ith porcellus. 



askoldcnsis. p. askoldensls Olierfh. (= cingidatum Bull.) (42 a). Larger, thorax with a niore obvious greyish white 



lateral streak, which is distinct also on the head and prothorax; collar edged \vith grey; abdominal segments 



Avith light-coloiu'ed mangins. Distal margin in both wings distinctly dentate. Neither above nor below bright 



red colouration. — Amurland and Japan. Originally described as a Sinerinthiis on account of the dentate wings. 



40. Genus: IIi|>|>4»fi4»ii Hbn. 



Palpi smoothly scaled on the outside, without the erect hair of Pergesa; on the inside the sealing at 

 the apex of segment 1 regularly arranged to form an even border, segment 2 not bearing an apical tuft of scales. 

 Antenna in J not clubbed, in V with distinct chib. — Larva anteriorly strongly tapering, segment 4 being swol- 

 len. Tongue-case of pupa compressed, cariniform. — The 20 species of this genus occur in Africa and Indo- 

 Australia. one of them entering the Palearctic Region. Many of the Indian species will doubtless be discovered 

 in Palearctic territory, especially in China, although they have not yet been met with in our Region as far as 

 we know. 

 osiris. H. osiris Dalin. is a tropical Africa! species which is said to have been found in Spain. It resembles 



celerio, but is larger, the stripes of the wings are much brighter and the abdomen bears on each side a black 

 basal spot. For more cf. the African section of this work, vol. 14. 



celerio. H. celefio L. (= tisiphone L., inquilinus Harris, ocys Hhi., albolineata Montr.) (42 b). Distributed 



over the Mhole Eastern Hemisphere with the exception of the North. A migrant which wanders northward 

 every year and hence is met with in many districts where it is not indigenous. We have not found any fairly 

 constant geographical races. Abdomen with short oblique lateral sih^er-streaks and a light median line. Fore- 

 wing with oblique stripes which run from the apex to the hind margin, a narrow pale discal band ends at the 

 apex and is hardly noticeably widened posteriorly. Hindwing red from the base to the anal angle, the costal 

 area and a submarginal line black, a broad discal band pale red and divided by tlie dark veins. Larva green or 

 brown, a large ocellus on segment 4, a small one on 5; a pale subdorsal line more distinct in front and 

 behind than on the central segments. On Vitis and Rubiaceae. Pupa glossy ; tongue-case large, cariniform ; 

 cremaster long-conical, dentate; spiracles black. The moth appears in Europe in the autmnn, but is on the 

 pnllifla. wing in the tropics almost throughout the year. Tutt gives the following names: ab. pallida, groinid pale terra- 

 brunnea. cotta; ab. brunnea, ground deep brown; ab. unicolor, the pale median band of the forewing is so much darkened 

 imicolor. ^^ ,j„j |j, contrast with the rest of the ground. A further aberration has been described as ab. augustei Trimoid., 

 entirely black, markings normal. 



41. Genus: Tlioretra Hbn. 



Palpi smoothly scaled, segment 1 at the apex with a cavity bounded by the scaling, the joint visible 

 in it (sensory organ ?); on the inside the scaling at the apex of segment 1 is regular as in Hip pot ion, but seg- 

 ment 2 bears at the apex a tuft of scales directed inward which is absent in all the previous genera. — Larvae and 

 pupae as in Hippolion. apart from the differences presented by each species. — 3(t species are known, which 

 are all confined to the Old World, the majority inhabiting the Indo-Austrahan Region. The species found on 

 Palearctic territory are with one exception (yapoMica), Indian species whose area of distribution extends north- 

 M'ard to TurkeJ^ China or Japan. 



Hes,s)(.s. T. nessus Drury (42 c). One of the largest species, which is easily recognised by the broad golden lateral 



stripe of the abdomen. — Distributed from Japan to Ceylon and eastward to New Caledonia, without being 

 split up into subspecies. Somewhat variable individually, especially in size. The blackish brown or green larva 

 has a light-coloured subdorsal stripe which nnis from the head to the horn and below v\-hich there are pale oblique 

 bands that have the same direction as in the larva of .S';j/w'« .v iigustri. OnDioscorea and Berringtonia. The moth 

 is very common. 



