[37] Volatu vespertino, Lin.

[38] Ochsenheimer places Oo in this genus, and I observe Mr. Stephens confines the genus to that one species. Mr. Curtis places Oo in the genus Bombycia: this confusion of genera is very puzzling, but I hope, by mentioning species, to make myself understood. Oo is not at all applicable to my purpose.

[39] Perhaps Noctua Lambda.

[40] Of Mr. Curtis's Guide. I cannot consider fasciaria, Mr. Curtis's next species, at all allied.

[41] Alcis. Curtis.

[42] Linnæus.

[43] I regret not having Dr. Horsfield's work to refer to; but I believe I am perfectly safe in stating from memory that these seven he considered typed in the genera, Saturnia, Lasiocampa, Cossus, Cerura, Arctia, Laria, and Limacodes: two of these he manages to unite to other two, in order to reduce the number to five, but I forget which.

[44] As the genera which I must mention ought necessarily to be drawn entirely from one work, in consequence of authors differing as to their contents, I have adopted those in Mr. Curtis's Guide, invariably: below is a list of the genera he has given in this section, with my own idea of their situation attached to each, and the addition of six genera, which Mr. Curtis does not consider as belonging to the sub-class Phalænæ:

789 Trochilium2 Cossi.812 Hypogymna6 Lariæ.
790 Ægeria2 Cossi.813 Orgyia6 Lariæ.
791 Hepialus2 Cossi.814 Laria6 Lariæ.
792 Cossus2 Cossi.815 Arctia6 Lariæ.
793 Zeuzera2 Cossi.816 Arcturus6 Lariæ?
794 Stauropus3 Notodontæ.817 Spilosoma5 Arctiæ.
795 Pygæra3 Notodontæ.818 Phragmatobia5 Arctiæ.
796 Clostera3 Notodontæ.819 PenthopheraOrder uncertain.
797 Notodonta3 Notodontæ?820 Eyprepia5 Arctiæ.
798 Pterostoma3 Notodontæ.821 Eulepia4 Lithosiæ.
799 PetasiaSub-class Noctua.822 Hypercampa4 Lithosiæ.
800 EpisemaSub-class Noctua.823 Callimorplia4 Lithosiæ.
801 Colocasia6 Lariæ.824 Deiopeia4 Lithosiæ.
802 Dimorpha3 Notodontæ?825 Lithosia4 Lithosiæ.
803 Cerura3 Notodontæ.826 NudariaSub-cl. Phryganea.
804 Ptilophora3 Notodontæ?827 PsycheSub-cl. Phryganea.
805 EndromisOrder uncertain.828 HeterogenaOrder uncertain.
806 Saturnia7 Phalænæ.829 LimacodesOrder uncertain.
807 Eriogaster1 Bombyces.854 Acronycta5 Arctiæ.
808 Clisiocampa1 Bombyces.942 Platypteryx3 Notodontæ.
809 Lasiocampa1 Bombyces.943 Drepana3 Notodontæ.
810 Odenestis1 Bombyces.944 Cilix3 Notodontæ.
811 Gastropacha1 Bombyces.

[45] See a Papilio with the antennæ of a Lasciocampa. Drury, Vol. III. pl. v.