94 BRITISH LEPIDOPTERA. 



porcellus. The difference lies solely in the pale green-yellowish colour, 

 and the more prominent markings of suellus. The fine red of porcellus 

 has here quite disappeared, only the one specimen from Hankynda has a very 

 faint tinge of red. On the forewings, two dark transverse lines are distinctly 

 expressed, the first, behind the close of the median cell, is somewhat broader and 

 more indistinct, and an indistinct spot is appended to it in the median cell ; 

 the second (outer) line is very sharply defined. They likewise appear on the 

 underside, and here they are distinctly continued into the hindwings. Indications 

 of these lines are also found in porcellns. Close under the darker apex of the 

 forewings there is in suellus a whitish mark, the upper part of the red outer 

 margin of porcellus, which is indicated in all suellus. Between this outer-marginal 

 part and the outer transverse line one finds also the broad greenish band of 

 porcellus, naturally much narrower. The outer-marginal part of the hindwings 

 is black on the upperside in three of my suellus, in one it is dirty yellow, like the 

 ground-colour. Head, thorax and abdomen are greenish-yellow, the latter more 

 grey. On the head, instead of the reddish stripes of porcellus, there are two 

 white ones. The epaulettes are strongly white externally, the prothorax very 

 narrowly bordered with white. The white lateral spots of the last abdominal 

 segments of porcellus are here light yellow, and the segments are here laterallv 

 touched with a golden colour. The abdomen in the speeimens from Amasia 

 and Borjom is tinged with pale reddish. My greenish-yellow aberrations of 

 porcellus from Germany differ markedly from suellus in their less distinct 

 markings, the lack of the white border of the epaulettes, and of the gold-varnish 

 coloured abdominal spots, &c. Distribution : Almost more distributed in 

 Transcaucasia than the type--Tiflis, Borjom, Lagodekhi, Istissou, Hankynda, 

 Souanetie. Asia Minor — Amasia, Tokad (Staudinger). 



Bartel notes (Pal. Gross-Schmett., ii., p. 127): "This form is 

 so very different from the type that one is not surprised at the 

 opinion of Radde, who considered it to be a distinct species, a 

 point which Staudinger still leaves undecided. It may be dis- 

 tinguished at once from the greenish-yellow aberrations of T. 

 porcellus from Central Europe by its less distinct markings, by the 

 lack of broad-white borders to the epaulettes, the glossy golden- 

 yellow abdominal spots and other characters. This variety is 

 found in Transcaucasia in the same localities as those frequented 

 by T. porcellus, is especially attracted by the blossoms of Lonicei-a 

 caprifolium, but has been taken at light in Amasia late in the 

 evening, when it was quite dark. It is confined to Transcaucasia 

 and Asia Minor, being, in the south and south-west Caucasus, 

 perhaps more widely distributed than T. porcellus. 



Egglaying. — The eggs are firmly attached to the leaves and 

 stems of Galium vcrum (Tutt) ; fastened to leaves near the top 

 of the shoots of bedstraw and appear to be usually placed on the 

 underside of the leaves. According to Schiitze, who has often 

 observed it ovipositing, the female always chooses the poorer 

 plants on which to lay its eggs. The ova are placed singly on 

 the stems and leaves of Galium vcrum, many being found thus 

 at Eastbourne from June 29th — July 12th, 1901 ; at the latter 

 date, however, most of those observed had already hatched 

 (Ransom). Montgomery notes that at Eastbourne, in 1900, he 

 searched G. vcrum on the downs, and found, between June 25th 

 and July 1st, 113 ova, usually not more than one on a stem. 

 The flowering stems produced none, but the .shorter stems, when- 

 ever in sufficient quantity to search, generally produced ova. Eggs 

 were also found on plants mixed with Galium, one blade of grass 

 had three, each half an inch from its neighbour, and each of 

 several ilower-stems of hawkweed had a single egg. lie adds 

 that ova of T. porcellus, kept in confinement, should be placed 



