The genus Lepidosaphes was established by Dr. Shimer, in the Transactions of the American Entomological Society, Vol. I., p. 372, Jan., 1868, with one species (conchiformis =ulmi, Linn., 1758). Although the generic description is not all that could be desired, it is certainly more satisfactory than the descriptions of many genera of insects in this and other orders which have been accepted without question.

The generic name Mytilaspis was first published, without a word of description, by Signoret, in his Catalogue of the Coccidæ in the Annales de la Societe Entomologique de France (4), Vol VIII., p. 841 (1868). This paper was presented to the Society at the Seance of March 25th, but was not published till later in the year. A description of this genus was given by Signoret in the above-named work for 1870, page 91. This article was presented to the Society at the same time as the Catalogue.