[26]

Mem. Acc. Lincei Rom. (4) iv. 1888, p. 554.

[27]

Zeitschr. wiss. Zool. xvii. 1867, p. 187.

[28]

Zool. Anz. iii. 1880, p. 584.

[29]

The Cockroach, 1886, p. 151.

[30]

Anatomy of the Blowfly, 1893, p. 362.