[21]

Ann. Sci. Nat. I. 1824, p. 97, etc.

[22]

See also Fig. 47 (p. 88).

[23]

In entomological language the piece between each two joints of an appendage is itself called a joint, though segment is doubtless a better term.

[24]

Arch. f. Naturgeschichte, lvi. 1890, p. 221.

[25]

Zeitschr. wiss. Zool. liv. 1892, p. 579.