Fluernes Munddele, Copenhagen, 1881, 91 pp. 6 plates; Ent. Tidskr. i. 1879, p. 150; Becher having given (Denk. Ak. Wien. xlv. 1882, p. 123) an interpretation different from that of Meinert, this author set forth his general views in Zool. Anz. v. 1882, pp. 570 and 599.
The reader should not suppose that there are only two views as to the Dipterous mouth, for actually there are several; our object is here only to give a general idea of the subject.
Tr. Linn. Soc. London (2) v. 1892, p. 271.
Tr. ent. Soc. London, 1884, p. 497.
Osten Sacken, although making use of the terms tegula and antitegula, suggested the propriety of using squama and antisquama, as we have done.