[466]

For a systematic memoir refer to Mayr, Verh. zool.-bot. Ges. Wien, xxxv. 1885, p. 147, etc.

[467]

Insect Life, iv. 1891, p. 193.

[468]

Tosquinet, Ann. Soc. ent. Belgique, xxxviii. 1894, p. 694.

[469]

Ichneum. Forst. Ins. 1844, p. 81.

[470]

Mitt. schweizer. ent. Ges. iv. 1876, p. 518.