[A38]

Formica flava

In 2 specimens the distance of eyes are 13 to 10 1/2 but in smaller spec. eyes not half size & far more obscure, rudimentary, I shd think.

Dec 6th. 1857 I reexamined eyes carefully with patient removing top of Head - width of head in proportion of 55:80

But eyes of larger double size, but the important difference consists in ocelli of smaller neuters being so very indistinct, so that with high power & bright light, they get less distinct: they might safely be called rudimentary. In one good specimen, I actually cd not discover them, but cd in others - I ought to see that really smaller than other sex or trust to Mr Smith.

 

[38v]

After about eyes in F. flava say, so that we seem to be on road of one set neuters having no ocelli & another set with them though small though no such case is Known to exist - or we are on road for neuters to be deficient altogether in ocelli, as is case with genus Myrmica

In selecting vegetables for feeder the plan put forwards to explain neuters has been followed, only not so methodically & the character of the visible portion has aided selection