[494] Journ. Morph., viii., 1893.

[495] Arch. f. Ent.-Mech., i., 1895; ii., 1896.

[496] Arch. f. mikr. Anat., xliii., 1893.

[497] Arch. f. Ent.-Mech., iii., 1896.

[498] Arch. f. Ent.-Mech., i., 1895.

[499] Anat. Anz., x., 1895.

[500] Arch. f. Ent.-Mech., iv. 1897.

[501] Arch. f. Ent.-Mech., ii., 1896.

[502] Arch. f. Ent.-Mech., iii., 1896.

[503] Journ. exper. Zool., i., 1904.