238 THK entomologist's record. 



whole of our living material. 1 may as well state at once that the 

 original object of the experiments was accomplished, and the constancy 

 of the larval colouring of /.. var. uirridionalis and /.. var. rihurni 

 established in four consecutive generations of larvRP ; the wild larvae 

 found by me in 1894-1895 being the great grand-parents of Mr. 

 Bacot's batches K {rihio-ni) and AO {i)icri(li(nialix) laid in 1897 ; or, if 

 my mixing the larvjp of my batches B and C be considered to vitiate 

 the results in the first generation, there still remain these consecutive 

 generations to form ample evidence of the fact. 



Imaoines. — The following is a description of /-. var. iiwridinjialis and 

 J J. var. rihi(rni. — ^ . Size varying from 2 to nearly 2^^ inches. Body and 

 wings dark chocolate-brown, the basal area up to the band generally 

 darker, var. rihurni with a slightly more purple tinge than var. iiicri- 

 (lionalis, which is redder. The wings very thickly scaled, more thickly 

 than those of the British and Parisian L. qiiercni^. The band ochreous 

 on the forewing, reddish-ochreous on the hindwing (this character is 

 given by Guenee as determining var. rihurni, it is, however, shared by 

 var. uieridinnalis, but I think will serve to differentiate these two forms 

 from more northern ones). The band is regularly curved on the 

 hindwing. On the forewing it is much straighter inside than in most 

 of the northern /.. qiicrciii^. It generally begins on the inner margin 

 as a small crescent, with the concave side tui-ned towards the base. It 

 then runs almost straight across two-thirds of the wing, approximately 

 at right angles to the inner margin in L. var. uirriilinualis, but sloping 

 inwards in front in /.. var. ribiinii. It then forms a more or less sharp 

 elbow inwards, but generally finishes on the costa with another 

 outward curve. The spot, elbow and apex of wing are approximately 

 in a straight line, while in the northern forms the elbow is lower than 

 the line between dot and apex, and more in the centre of the wing. 

 On the outside, the band is more evenly curved, it is narrowest on the 

 inner margin, broadest from the elbow to the costa. It is compara- 

 tively narrow, being about midway in width between British L. qnercfis 

 and L. var. siriila, in which it is very narrow. It is, on the average, 

 narrower and more sharply defined in /,. vnr. nirridimtalifi, than m L. 

 var. rihurni, and, in this respect, /.. var. rihurni is nearer to L. qncrcus 

 than />. var. inrridionalis is, though, in the matter of ground colour, 

 the reverse is the case. The band is quite sharply defined internally 

 on both wings, and has not so much tendency to form what I may 

 call ripples between the nervures as in the northern L. qnrrcm. 

 Outside it is only slightly suffused, or not at all : nor is the wing 

 beyond the band ever powdered to any great extent with lighter scales. 

 I have only one specimen out of hundreds of the pure Cannes breeds 

 in which the width of the band on the hindwing at all approaches 

 that of s^icnla (this specimen has the hindwing much like that 

 of L. var. (iitiUonotii, Trimoulet, ' from the (jironde). The 

 nervures are inconspicuous, slightly darker than, or concolorous 

 with, the ground colour, except occasionally, when faintly powdered 

 with ochreous outside the band on hindwings. The spot is small 

 or of medium size, round or square, smaller on average in /.. var. 

 vihitr)ii : the fringe of forewings concolorous Avith Avings. The fringe 



* Wiiced by Staudinger with L. rolioris, Suhrk. The latter is so scantily 

 defined, that I keep the local name. 



