estidae, and Cerambycidae_, and with the _Elateridae, Lampyridae,
Tenebrionidae, Helopidae, Meloidae, Curculionidae, Prionidae, Cerambycidae,
Lamiidae_, and _Endomychidae_.

"The _Copridae, Dynastidae, Melolonthidae, Cetoniadae_, and _Passalidae_ are
well represented on the plains and on the coast, and the species are
mostly of a tropical character.

"The _Hydrophilidae_ have a more northern aspect, as is generally the
case with aquatic species.

"The order _Strepsiptera_ is here considered as belonging to the
_Mordellidae_, and is represented by the genus _Myrmecolax_, which is
peculiar, as yet, to Ceylon.

"In the _Curculionidae_ the single species of _Apion_ will recall to mind
the great abundance of that genus in North Europe.

"The _Prionidae_ and the two following families have been investigated by
Mr. Pascoe, and the _Hispidae_, with the five following families, by Mr.
Baly; these two gentlemen are well acquainted with the above tribes of
beetles, and kindly supplied me with the names of the Ceylon species.

Order ORTHOPTERA.

"These insects in Ceylon have mostly a tropical aspect. The _Physapoda_,
which will probably be soon incorporated with them, are likely to be
numerous, though only one species has as yet been noticed.

Order NEUROPTERA.

"The list here given is chiefly taken from the catalogue published by
Dr. Hagen, and containing descriptions of the species named by him or by
M. Nietner. They were found in the most elevated parts of the island,
near Rangbodde, and Dr. Hagen informs me that not less than 500 species
have been noticed in Ceylon, but that they are not yet recorded, with
the exception of the species here enumerated. It has been remarked that
the _Trichoptera_ and other aquatic _Neuroptera_ are less local than the
land species, owing to the more equable temperature of the habitation of
their larvae, and on account of their being often conveyed along the
whole length of rivers. The species of _Psocus_ in the list are far more
numerous than those yet observed in any other country, with the
exception of Europe.

Order HYMENOPTERA.

"In this order the _Formicidae_ and the _Poneridae_ are very numerous, as
they are in other damp and woody tropical countries. Seventy species of
ants have been observed, but as yet few of them have been named. The
various other families of aculeate _Hymenoptera_ are doubtless more
abundant than the species recorded indicate, and it may be safe