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



Thracia. Westw. 



Antenna capite fere duplo longiores, basi approximatae. Oculi orbiculati, integri. Ocelli 

 nulli ? Rostrum pectore longius. Clypeus dorso tricarinatus. Tibia postica medio sub- 

 calcaratae. Alee anticae longissimae, angustas, apice truncatae, venis 1 2 longitudinalibus 

 inter angulum apicalem et analem, vena mediastina (Tab. II. fig. 2 B, a) ad apicera bifida 

 (a *). Vena postcostalis ultra medium alas irregularis, apice bifida, postice ramos qua- 

 tuor emittens (rami sex postcostales 2 B, b *) ; vena mediana (2 B, c) postice ramos tres 

 emittens (vena et rami mediani 2 B, c *); vena? alarum posticarum venis brevibus trans- 

 versis conjunctae. 



Thracia sinuosa. Westw. (Derbe sinuosa. Boheman). 

 Tab. II. Fig. 2. 

 Fuliginosa; rostro pedibusque pallide testaceis, alis anticis vitta costal i sinu- 

 osa fusca serieque punctoruin fuscorum. 

 Long. corp. alis clausis lin. 7- Paris. 

 Habitat in Sierra Leona. Mus. D. Schonherr. 



Thracia Bohemanni. Westw. (Derbe nervosa. Boheman). 

 Corpore subtus pedibusque flavescentibus, abdominis lateribus anoque runs, 



hemelytris pallide fuscis nervis costalibus sanguineis reliquis albo-fusco- 



que punctatis. 

 Long. 5 lin. 



Habitat in Sierra Leona. Mus. D. Schonherr. 

 Obs. Haec species cum D. nervosd, Kl. Burm. haud confundenda. 



The other African species, described by M. Boheman as constituting his 

 second section of Derbe, differ materially from those of his first section, as, 

 indeed, he has justly observed; I have accordingly considered them as form- 

 ing another subgenus under the name of 



Phenice. Westw. 



d.stmcte mar^nat, OcelU istmcti, ad iatera frontis sub oculis positi . Clypcm „ 

 m Thracu,. Rostrum pectore vix longius. Al. antie* quam JZacid b , v , ore , 

 ap.ee s„ br otunda te; venis « ut in Mysidid ^^ JZ^J^ ^J 



