MONOGRAPHIA .T-GERIARUM ANGLI^E. 78 



point, to examine before condemning. It is my own opinion 

 that a genus should be estabhshed for every species whose pri- 

 mary characters differ from those of its congeners : in the present 

 instance it will be found, by a reference to exotic specimens, 

 that none of the proposed genera are confined to single species ; 

 and, in three instances, the number of species amounts to seven. 

 Five of the genera were established by M. Hubner in 1816." 

 The addition to the number, on my part, only amounts to two; 

 and these two, I trust, will stand the test of that scrutiny with 

 which, I doubt not, they will be favoured. 



Characteres Generum. 



Genus VII. Palpi breves: antlia brevis, quasi imper- 

 fecta : antennae thorace breviores, maris 

 pectinatae : abdomen crassum, haud bar- 



batum tEgeria, Fab. 



V. Palpi elongati, articulo ultimo nudo, sub- 

 tus emarginato : antennae thorace paulo 

 longiores, maris ciliatae : abdomen bar- 

 batum, maris barba compressa, femince 



dilatata Pyropteron, Newm. 



VI. Palpi elongati, articulis omnibus squama- 

 tis : antennae thorace vix longiores, 

 maris ciliatae : abdomen medio crassius, 

 vix barbatum Bembecia, Hubn. 



I. Palpi elongati, articulo ultimo laevissimS 

 squamato : antennae thoracis longitudo, 

 maris subpectinatis : abdomen maris gra- 

 cile, femincB crassum et brevius, valdd 



barbatum, barba dilatata Synanthedon, Hubn. 



II. Palpi elongati: antennae thorace longi- 

 ores: abdomen utriusque sexiis gracile, 

 valdd barbatum ; barba triloba dilatata Trochilium, /Sco/;. 



III. Palpi elongati: antennae thorace longi- 



ores, tnaris ciliatae: abdomen maris 

 medio compressum, gracilissimum./emi- 

 na gracile, utriusque sexUs valdS bar- 

 batum : barba triloba dilatata . . . Conopia, Hubn. 



IV. Palpi elongati subtus quasi angulati: 



antennae thorace paulo breviores, maris 

 bipectinatae : abdomen crassum, vix 

 barbatum Paranthrene, Hubn. 



" Proposed in the Ferseichniss bekaunter Schmetterlingen, 1816, where the 

 other genera which I have adopted will be found. I am indebted to J. F. 

 Stephens, Esq. for all the information I possess on the subject of these genera 

 NO. I. VOL. I. L 



