Title from caption.
At head of title: Article 4.
Date of publication: Feb. 29, 1904. Cf. introd. text to v. 20.
Specimens from Mexico collected near Tlacotalpan by Mr. E.A. Colburn; specimens from Costa Rica collected mostly in or near the Irazú Range by M.A. Carriker, Jr.; specimens from Panama collected mainly at or near Boquerón and Boquete, in the Province of Chiriquí, with some taken from Coiba and other coastal islands, by J.H. Batty.
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