OCR Text |
Show 200 MR. E. B. POULTON ON THE PROTECTIVE [Mar. 1, TABLE I, Species of Larva. Diloba CCB-ruleoee-phala. Pygcera bueephala. Orgyia antiqua. Porthesia auriflua. Euchflia jacobcBce. Lasiocampa {Den droll 7nus) pini Method by which rendered conspicuous. Yellow, green, and black; freely exposed on leaves of hawthorn &c. Yellow, orange, and black; downy ; gregarious ; most conspicuous on oak, elm, lime, birch, &c. Black and pink, with hairy tufts; freely exposed on upper sides of leaves of nearly all garden plants. Black, red, and white very conspicuous on upper sides of leaves of hawthorn &c. Unpleasant attribute. ? Taste or smell. Proof lies in what follows. ? Taste or smell. Proof lies in what follows. Eversible dorsal glands doubtless yielding odoriferous secretion. Hairs also apparently disliked,and perhaps irritating. hairy; Eversible dorsal glands: secretion volatile and irritant. Hairs intensely irritating. Alternate rings of black and yellow; gregarious; very conspicuous on ragwort. ? Taste or smell. Proof lies in what follows. " Variegated with red, brown, grey, and white, with two blue fascia? near the bead, spotted at the sides with red ; it is tufted with hairs, one thicker than the rest near the tail." Apparently conspicuous on its food-plant- pine. {Westwood,and Humphreys, 'BritishMoths') Curtis states that Walker found the hairs intensely irritating on handling the larva. Results of J. Jenner Weir, using many species of Birds and Lizards. Disregarded by all the birds. Experiment repeated a second season, when the larva was " examined when moving, but not eaten." Eaten by Lacerta agilis, but evidently disliked and generally avoided. Disregarded by all the birds. Disregarded by all the birds. Experiment repeated a second season. Refused by all the Lizards. A. G. Butler, using Birds, Lacerta viridis, Frogs, and Spiders. A young Missel- Thrush reared from the nest has frequently eaten the larvse, but the long hairs were always rubbed off before swallowing. Eaten, without hesitation, by a young Sky-Lark, which, however, died soon afterwards with symptoms which may have been due to irritation from the hairs. |