Westwood, John Obadiah, 1835, Description of a minute coleopterous insect, forming the type of a new subgenus allied to Tomicus; with some observations upon the affinities of the Xylophaga.

Westwood, John Obadiah, 1835, Description of a minute coleopterous insect, forming the type of a new subgenus allied to Tomicus; with some observations upon the affinities of the Xylophaga., Transactions of the Entomological Society of London 1, No. 1, pp. 34-36