Note 1505 — LETTER XXXIV. (continued 2)
Reading edition
Latreille speaks of Phasma as having no stemmata; but it should seem that he examined only the apterous ones, all the winged individuals, at least so far as I have examined them, having three very visible ones. It may, I think, be laid down as a rule, that the larvæ and pupæ of Orthoptera have not these organs. Probably their use is principally in flying?