91 



"An experiment made with fourteen larvae of Ardia caia 

 to note what effect would be caused by the constant variation 

 of the food-plant has shown, in this particular instance, that 

 such of the pupae as emerged successfully produced equal 

 numbers of dark and light specimens, none of which can 

 be said to be true to type. Of course, the number experi- 

 mented with is far too small to obtain any sufficiently 

 valuable evidence fit for recording at the present time, but 

 experiments to be made on a larger scale will probably throw 

 more light on the subject, and lead to more conclusive evi- 

 dence. 



" The larva; in question were fed successively on dande- 

 lion, chickweed, hawthorn, plantain, nettle, lettuce, etc., the 

 food-plant being changed every day. Of the fourteen larvas 

 in question, one died, six emerged successfully, the remaining 

 seven failing to emerge from the pupas, although on opening 

 the same they were found to be perfect. 



" Specimen No. i. — Fore-wings light ; hind-wings brick-red 

 suffused with yellow. The dark spots are on yellow ground, 

 and on the outer margin of the wings there are four instead 

 of three spots. 



^'Specimen No. 2. — Fore-wings light, but with a dusky 

 appearance ; hind-wings orange ; right pair of wings smaller 

 than the left. 



" Specimen No. 3. — Fore-wings dark ; hind-wings deep 

 salmon, the outer spots having a tendency to join together 

 to form a band. Antennae tipped with black ; the fringes of 

 the hind-wings blackened at different portions, and the right 

 pair of wings very much smaller than the left. 



'^Specimen No. 4. — Fore-wings dark and suffused with a 

 dusky appearance, but not so much as No. 2 ; the hind-wings 

 deep brick-red, their fringes slightly blackened at different 

 portions, but less than No. 3. Antenna; black for half the 

 length, and the right pair of wings slightly smaller than the 

 left." 



Mr. Turner exhibited a short series of Rnmicia phlccas from 

 Brasted, taken on August 28th, including a very fine example 

 of the white aberration, var. alba (schmidtii, of authors), and 

 pointed out that it had been shown that the true schmidtii, 

 Gerh., was the pale straw or cream-coloured form. He also 

 showed a very variable series of the beautiful Anthrocerid, 

 A. carniolica, taken from a field near Gex, at the foot of the 

 Faucille Pass, S. Juras, in company with A. filipendulcB, 

 A. achillecB, Leptidia sinapis, Issoria lathonia, Argynnis aglaia, 

 A. paphia, etc., on August nth, igog. They were brought 



