( xvi ) 
median area being white, proximally and distally bounded by 
dark bands. It has, however, a slight ochreous-ferruginous 
hue, which is rather prevalent in Iceland forms. Possibly 
two other worn ¢s were also similar. All the rest are definitely 
dark-banded. My series of 18 from the F. A. Walker collection 
shows the same preponderance. 
But amongst these dark-marked forms there is an exceed- 
ingly wide range of variation. 2 3,39 have the entire fore- 
wing (excepting the almost invariable subapical pale markings) 
ferruginous, the basal and median areas only slightly darker 
than the rest (ab. ferruginea, Prout); another ¢ still more 
uniform and one a little more variegated can also be mentioned 
here. 9, 2? belong approximately to Staudinger’s “ var. k ”’ 
(al. ant. fuscescentibus, margine antico extus albido-maculato), 
the “ fuscescent”’ shade resulting from a strong admixture of 
black with the ferruginous of the preceding form. In four 
other 9s the blackish has wholly supplanted the ferruginous 
in the broad median area, producing a form more general in 
Britain and Continental Europe; to one ¢ the same remarks 
apply, but that there is an admixture of white in the median 
area, giving rather a mottled appearance. Finally we have 
five examples with black basal and median bands but with an 
increase of white in the intermediate and distal areas, the 
extreme being a pair (g, 9?) of the beautiful ab. thingvallata, 
Stgr. The intermediate form, which F. A. Walker named 
ab. cjornensis, scarcely needs a separate name, on account of 
the intergrading; one of the three before me (a 2) agrees with 
his type, one ¢ has more dark markings in the distal area while 
the other (also 3) has so much dark marking there as almost 
to lose the characteristic aspect. 
It may be added that a g of “ab. k” was taken in cop. with 
a fine ? of ab. ferruginea, but I have not learned of any result 
of the pairing. 
AN ALMOND-FEEDING CHaALcip.—Dr. K. Jorpan exhibited 
a species of Chalcid together with its live chrysalis, which he 
had received for identification from the Director of Agricul- 
ture on Cyprus, where the species does extensive damage in 
the almond plantations. He read the following notes on the 
subject :— 
PROC. ENT. SOC. LOND., I. 1913. B 
