Mr. Westwood's Observations on the Genus Derbe. 17 



Fig. 5. Fore-wing oi Mysidia pallida, Westw. o. The terminal branch of the median vein, 

 being connected therewith by the curved base p, and quite distinct from the 

 postcostal vein, the branch q being here obsolete. 



Fig. 6 A. Fore-wing of Anotia Bonnetii, Kirb., the branch o being quite independent at its 

 base either of the median vein c, or of the short branch q. 



B. Part of the right fore-wing of the same, showing the two branches emitted from 



the apex of the large discoido-apical cell. 



C. The hind-wing of the same. 



Tab. II. 



Fig. 1. Diospolis elongata, Westw. *** Longitudinal veins emitted from the postcostal vein, 

 although analogous to the branches of the median vein of Mysidia. 



Fig. 2. Thracia sinuosa, Westw. 



A. Antenna. - 



B. Fore-wing, lettered as above. a*. Terminal branches of the mediastinal vein. 



b*. Terminal branches of the postcostal vein. c*. Terminal branches of the 

 median vein, z. The second branch of the median vein, but also connected 

 with the postcostal vein by a short transverse vein. 



C. Hind-wing. 



Fig. 3. Phenice fasciolata, Westw. 



A. Antenna. 



B. Fore-wing, lettered as above. 



C. Hind-wing. 



Fig. 4 A. Fore-wing of Otiocerus Degeerii, Kirb., lettered as above. 

 B. Head of ditto, seen sideways. 



Fig. 5. Fore-wing of Otiocerus Coquebertii, Kirb., lettered as above. 



Fig. 6 A. Patara guttata, Westw. 



B . Head of the same, seen sideways. 



C. Fore-wing of the same, lettered as above. 



D. Hind-wing of the same. 



Fig. 7- Patara albida, Westw. 



VOL. XIX. D 



