COCKROACHES, ETC. 137 



limbs, and it might be an awkward customer for any 

 insect-eating bird or lizard to tackle. 



Hymenopus bicornis, another floral simulator, is not 

 uncommon in Sarawak and the Malay Peninsula. 

 Newly hatched specimens are bright red with black 

 spots, and present a close resemblance to the similarly 

 coloured young of a very common and unpalatable 

 plant-bug, Eulyes amcena, 1 and it is probable that this 

 mimicry is of considerable advantage to the young 

 Mantis. After the next moult Hymenopus becomes, 

 and to the end of its life remains, flower-like. It is in 

 the larval stages pink as a rule, but has, I believe, con- 

 siderable power of adapting itself to its colour surround- 

 ings ; for I found a young larva on a jasmine-like plant 

 that had yellow flowers with crimson stamens, and the 

 Mantid larva was yellow with crimson lines on the 

 abdomen and coxa?. I do not believe, however, that 

 it can alter its colour to any extent without undergoing 

 a change of skin. Dr. N. Annandale has made some 

 most interesting observations on this species, which he 

 observed in the Malay Peninsula, and the following is 

 an abridged account. 2 The general colour of the nymph 

 is pink, and there is a bar of green across the base of 

 the prothorax ; the dorsal surface of the abdomen is 

 pink with some slender stripes of yellow-brown, and 

 some darker transverse bars near the base. As the 

 nymph when at rest carries its abdomen curved over 

 its back the dorsal surface is invisible, but the pink 

 under surface exposed to view. At the tip of the abdo- 



1 This interesting mimetic resemblance of the young Hymenopus 

 was described and figured by Mr. Shelford (P.Z.S., 1902, II., pp. 231, 

 232, PI. XIX, figs. 16-19). E. B. P. 



3 P.Z.S., 1900, pp. 839-48. 



