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- 

 calcarate. Ala anticae longissimae, angustae, apice truncatae, venis 12 longitudinalibus 

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

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

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

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

 versis conjunctae. 



Thracia sinuosa. Westw. (Dkrbe sinuosa, Boheman). 

 Tab. II. Fig. 2. 

 Fuliginosa ; rostro pedibusque pallid^ testaceis, alis anticis vitt^ costali sinu- 

 osa fusca serieque punctoriim fuscorum. 

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

 Habitat in Sierra Leona. Mas. D. Schonherr. 



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

 Corpora siibtiis pedibusque flavescentibus, abdominis lateribus anoque rufis, 



hemelytris pallid^ 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. baud 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. 



Antenna capite manifeste breviores, basi remotae. Oculi oblongi vel obovati, pro antennis 



distincte emarginati. Ocelli distincti, ad latera frontis sub oculis positi. Clypeus ut 



in Thracid. Rostrum pectore vix longius. Ala anticae quam in Thracid breviores, 



apice subrotundatae, venis fere ut in Mysidid dispositis, 12 longitudinalibus ad margi- 



