84 Linnean Society. [Dec. 1, 



Lydda. Rostnun brevius. Antennse breves. Aire anticse valde elongatce, 

 apice rotundatEB, directione venarum anomala ; vegioiie veiice mediance 

 minima, aut potius ejus rami in ven^ postcostalis ramos transibrmati. 



The type of this subgenus is Derbe elongata, Fab., from New 

 Holland, in the cabinet of the Linnean Society. 



Zeugma. Rostrum ultra basin pedum posticonim extensum. Antennas 

 rotundatae. Ocelli obsoleti ? Prothorax lateribus pro antennarum re- 

 ceptions concavo-dilatatis. AltB anticse oblongo-ovatce, apice subtrun- 

 catae, venis numerous longitudinalibus; vena postcostali ramos 8 postice, 

 mediana tantum tres emittente. 



This subgenus is stated to be intermediate between Derbe and 

 Thracia on the one hand, and Mysidia on the other. The only spe- 

 cies is 

 Z. vittata, fulva ; alls anticis flavidis vitta lata media apicem versus 

 deflexa alteraque postica parallela apice vitta abbreviata fasciaque 

 tenui transversa fuscis. In Mus. Soc. Linn. 



Thracia. Rostrum pectore longius. Antennse capite fere duplo longi- 

 ores. Oculi orbiculati. Ocelli nuUi ? AXse anticse longissimae, angusta;, 

 apice truncatse, venis 12 longitudinalibus inter angulum apicalem et 

 regionem analem. 



This subgenus is proposed for the two African species, D. sinuosa 

 and D. nervosa, described by Boheman, and considered by him as 

 constituting the first section of the genus. Notwithstanding the 

 difference of its geographical range, the author adds the following 

 species from Java, which agrees with the other two in all the sub- 

 generic characters : 



T. javanica, fulva ; abdomine obscuriore vitta central! pallidiori, alis 

 pallide hyalinis anticis fascia lata costali fusca. Java. D. Horsfield. 

 In Mus. Soc. Mercat. Ind. 



Phenice. Rostrum pectore vix longius. Antennae capite manifeste bre- 

 viores. Oculi oblongi, vel obovati, distincte emarginati. Ocelli di- 

 stinct!. Alse anticEe quara in Thracia breviores, apice subrotundatse, 

 venis fere ut in Mysidia dispositis, 12 longitudinalibus inter angulum 

 apicalem et regionem analem. 



This subgenus is proposed for the three African species, D. fritil- 

 larisyfasciolata, and stellulata, described by Boheman, and forming 

 his second section of Derbe. 



After reviewing the characters of the preceding subgenera, the 

 author expresses the opinion that Otiocerus (including Hypnis, 

 Burm,) and Anotia of Kirby, must also be considered as subgenera 

 of equal rank with the preceding ; that Anotia coccinea, Guer. Icon. 



