Note 225 — LETTER XXX.

The only larvæ which have a visible distinct neck are those of some Dytisci, Staphylini, and a few others, in which this part is quite distinct: proving the erroneousness of the opinion of those German entomologists, who consider the thorax as analogous to the neck of other animals, and hence call it Halsschild. In some lepidopterous larvæ, however, as in that of Pieris Brassicæ, though no visible neck presents itself, one is very perceptible when the insect stretches the head forward considerably. Reaum. i. 460.