54 TORTIUCINA. 



stout, curved upwards, slightly thicker in the centre, diminishing 

 towards the apex, densely clothed with short scales, three times as 

 long as the apical. MaxillaB longer than the palpi. Thorax stout, 

 subglobose, not tufted behind. Anterior wings in the $ not ex- 

 ceeding twice the width, in the $ more than twice the width. 

 Costa : in the <$ obtuse at base, and with a flap, or fold, extending 

 from the base to the middle ; in the abruptly arched at the base. 

 Apex produced slightly upwards ; apical margin concave below the 

 apex. Anal angle obtuse and rounded ; dorsal margin straight. The 

 discoidal cell is situated in the upper half of the wing, is elongate 

 and slightly arching. The sixth apical nervurc attains the margin 

 considerably above the anal angle. Posterior wings : apex obtuse, 

 apical margin concave, dorsal margin entire. Abdomen slender in 

 the c? , with a caudal tuft at the apex ; stout, obtuse at the apex, 

 and without tuft, in the . 



A genus under this name was established by J. F. Stephens, 

 for the reception of such species of the Linnsean genus Tortrix 

 as are marked with oblique bands or fasciae across the anterior 

 wings ; but in the present arrangement it is applied only to such 

 of them as have the costa folded in the d , the remainder being 

 retained under the latter appellation. 



The habits of these insects are similar to those in the pre- 

 ceding genus, both in the larva and imago state ; and they are 

 equally abundant. 



In' addition to the fold on the costa, the apex of the anterior 

 wings is more produced and curved upwards than in Tortrix y 

 besides there being considerable disparity in the markings of the 

 sexes of the species included in the division b of the second 

 section of the following Table. 



In repose, these insects sit very flatly on the plane of position, 

 holding the wings but slightly deflexed. From the very broad 

 bases of the anterior wings, they have much the appearance of a 

 bell, and are called by collectors " Bell-moths." 



The larvae are exceedingly common and active in their move- 

 ments when disturbed, wriggling and contorting their bodies in 

 a very violent manner ; they spin, fold, or roll themselves up in 

 the leaves of their food-plants, and frequently assume the pupa- 

 state 'in their larval habitations ; it is, however, not unusual 

 for them to quit the food-plant, and spin up in others quite 

 different, so that the mere finding of a PUPA on a plant is not 

 always a criterion that the larva has fed upon it. In this genus, 

 as in Tortrix, it requires great experience to discriminate the 

 larvae their appearance, habits, and economy being so very simi- 

 lar; and to this circumstance we attribute the very little pro- 



