( cxlv ) 



men. The harpagones are loosely covered on their lower 

 margin by a deeply hollowed fine chitinoiis ventral plate, much 

 more developed than in Ilema, and except for an excessively 

 fine membrane practically dissociated from the girdle ; in 

 shape the harpagones are somewhat quadrangular, with a 

 hollowed finger-like extension at the lower apex, and a largish 

 and moderately long extension at the upper apex, where it is 

 suddenly expanded ; the sedoeagus is a large curved tube, with 

 the vesica copiously shagreened and furnished with an 

 armature of spines in the centre. 



Parasemia 'plantaginis, L., 



has the cingula and tegumen very similar to Diacri&ia ; the 

 harpagones have no ventral cover plate and are more or less 

 irregularly wedge-shaped, tapering rapidly to the front apex, 

 which is upturned into a long powerful hook; in connection 

 with the harpago is a basal hollowed cuneate organ at the 

 rear (analagous to the furca in most Rhopalocera), acting no 

 doubt as a guide to the sedoeagus, whilst at the upper rear edge 

 of the harpago is a long finger-like organ, covered on its lower 

 margin with short spines ; the sedoeagus is a shortish broad 

 tube with a heavy horn-like extension at its lower apex ; the 

 vesica is large and furnished with a dense coat of mail of spiny 

 scales, developing at the apex into long spines. 



Arctia caja, L., 



has the cingula indented at the tergite, and in this is less 

 advanced than Syntomis; the tegumen is a large simple 

 beak-like uncus ; the harpagones are large with a moderately 

 long rounded spatulate extremity; the organs at the rear 

 of the upper edge of the harpagones are heavy and largish, 

 irregular in shape, with an upturned hooked extremity; the 

 sedoeagus is very large, bent near the middle, and expanding 

 outwards with an enormous vesica roughly shagreened nearly 

 all over. 



Callimorpha dominula, L., 



has the cingula very simple, slightly indented at the tergite, 

 with the typical tegumen of the group ; the harpagones have 

 a fine membranous hairy ventral plate ; the harpagones are 



PROC. ENT. SOC. LOND., V. 1914. K 



