BY n. .t. TiLLYAtlt). / io 



111 either position of rest, Miss Davidson states that tlie re- 

 semblance of the insect to a moderate-sized fungus is very marked. 

 Certainly, the white colour of the wings, with their yellowish- 

 in-own markiny:s, would sujxirest this; but I do not know whether 

 there is actually any fungus growing on the mountain for which 

 the insect might be readily mistaken. Unless there is, we can- 

 not say that the appearance of the insect is such as to aftbrd it 

 readily any protection from birds. From the fact that its wings 

 have been seen several times lying upon the ground, the insect 

 having evidently been seized and eaten by a bird, and also that 

 Mr. Davidson himself lost a fine female from his verandah, 

 through a bird seizing it, there would seem to be prwia facie 

 evidence that its appearance affords it no protection whatever. 

 Birds may, therefore, have been one of the main factors in the 

 reduction of the Psychojysidm to a mere remnant since Jurassic 

 times, and also in the total extinction of their Jurassic allies, the 

 Proheynerobiidai and the gigantic KaWgrammatidce. 



Miss Davidson's sketches were made from the specimen in my 

 collection, which was captured on Dec. 7th, 1916, and was kept 

 alive for about a fortnight on sugar and water, in the hope that 

 it might lay some eggs. Unfortunately, it proved to be a male. 

 A fine female, which was apparently attracted to it one night, 

 was seen in the early morning resting upon the verandah; but, 

 as already recorded, was seized and carried off by a bird, before 

 Mr. Davidson could secure it. 



PsYCHOPSis Newman. 



Newman, Entomologist, 1842, p. 4 15. Hagen, 8tett. ent. Zeit. 

 1867, p.375. 



Arteriopteryx Gueriii, Iconographie du Regiie Animal, 1845^ 

 iii., p.389. 



Arttrr'wptery.K (partim) Navas, Coiigr. Valladolid, 1916, p. 189. 



Zyyophlebias Navas, Broteria Braga, 1910, p. 82. 



Wernzia (partim) Navas, Mem. R. Acad. Ci. Art., Barcelona, 

 1912, X., p.l95. 



Maycdlanes (partim), Navas, Mem. R. Acad. Ci. Art., Barce- 

 lona, 1912, X., p.l97. 



