200 



MR. E. B. POULTON ON THE PROTECTIVE [Mar. 1, 



Table I. 



Species 



of 

 Larva. 



Diloha C(B- 

 rideoce- 

 phala. 



Fygara bit- 

 cephala. 



Orgi/ia an- 

 tlqva. 



Porthena 

 auriflua. 



Euchi lia 

 jacob(B(B. 



Lasioeampa 

 (Demlroii- 

 mus) pini 



Metbod by wbieh 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. 



Blnck and pink, with hairy 

 tufts; freely exposed on 

 upper sides of leaves of 

 nearly all garden plants. 



Unpleasant 

 attribute. 



? Taste or smell. Proof 

 lies in what follows. 



? Taste or smell. Proof 

 lies in what follows. 



Eversible dorsal glands 

 doubtless yielding 

 odoriferous secre- 

 tion. Hairs also ap- 

 parent ly disliked , and 

 perhaps irritating. 



Black, red, and white ; bairj- ; Eversible dorsal glands 



very conspicuous on upper 

 sides of leaves of hawthorn 

 &c. 



secretion volatile and 

 irritant. Hairs in- 

 tensely irritating. 



Alternate rings of black and 

 yellow ; gregarious ; very 

 conspicuous on ragwort. 



? Taste or smell. Proof 

 lies iu what follows. 



" Variegated with red, brown, 

 grey, and white, with two 

 blue fasiijc npar the head, 

 spotted at tiie sides with 

 red; it is tufted with hairs, 

 one thicker than the rest 

 near the tail." Apparently 

 conspicuous on its food- 

 plant — pine. ( ]\'esht'oodand 

 Humphreys, 'British Moihs.') 



Curtis states that 

 Walker found the 

 hairs intensely irri- 

 tating on handling 

 the larva. 



Eesults of 



J. Jenner Weir, 



using many species 



of Birds and Lizards. 



Disregarded by all 

 the birds. Expe- 

 riment repeated a 

 second season, 

 when the larva 

 was " examined 

 when moving, but 

 not eaten." 



Eaten by Lacerfa 

 ar/ilis, but evi- 

 dently disliked 

 and generally 



avoided. 



Disregarded by all 

 the birds. 



Disregarded by all 

 the birds. Expe- 

 riment repeated a 

 second season. 

 Refused by all the 

 Lizards. 



A. G. Butler, 



using Birds, Laceria 



viridis, Frogs, and 



Sj)iders. 



A young Missel- 

 Thrush reared 

 from the nest has 

 frequently eaten 

 the larva', but th 

 long hairs were 

 always rubbed off 

 before swallowing. 



Eaten, without hesi- 

 tation, by a young 

 Sky-Lark, which, 

 however, died soon 

 aCterwards with 

 syniptums which 

 may ha\e been due 

 to irritation from 

 the hairs. 



