266 Dr. H. Eltringhara on the 



costa from base to about middle, where it may be suddenly narrowed 

 or may run over into apical black. The latter varies from about 

 10 to 3 mm. wide at apex, and may extend as a marginal border as 

 far as 2 or to hind angle. H.-w. chalky white, spots of uftderside 

 showing through from beneath. 



Underside. F.-w. as above, but apical black paler. Every 

 gradation from this to a mere black marginal line and a blackish 

 spot at apex in 7. A subtriangular costal spot opposite end of cell. 

 H.-w. chalky white with a rounded dark spot in 6, sometimes a 

 smaller one in 5, or in 5 and 7. A small spot in Ic opposite origin 

 of nervule 2. Sometimes a double spot at anal angle. 



The lagyra forms are distinguished from enrema by the 

 absence of a spot in h.-w. cell beneath, and from aspidos 

 female by the fact that the latter nearly always has at least 

 a dusting of brownish scales near anal angle of h.-w. 

 beneath. This character is not, however, quite constant 

 and there are females of aspidos that cannot with certainty 

 be distinguished from lagyra. 



Suffert's name gyrala is applicable to forms in which 

 the f.-w. costal black is rather broad and runs over into 

 the apical black, whilst there are small spots on h.-w. 

 underside in 5 and 7. The same author's emilia is even 

 less distinctive, merely having the f.-w. apical black 

 rather broader than in the type. Druce's punctata has a 

 submarginal row of spots on the h.-w. underside. 



The forms referable to lagyra present considerable 

 difficulties from a taxonomic point of view. If we deal 

 with them on the structure of the male armature, then we 

 must conclude that there are at least three species, one of 

 them very distinct. On Plate XI are drawings of the 

 armatures of these three forms. Fig. 9 represents the 

 claspers of a specimen from the Ja River district in 

 S. Cameroon. The claspers are bifid, thus differing from 

 those of other species of the genus. Fig. 8 is taken from 

 an example from the Upper Kassai district. Here the 

 claspers are still bifid, but the lower fork is much longer 

 than the upper. Fig. 7 is from a specimen taken at Port 

 Victoria, Cameroon, and differs entirely from 9 and 8 

 and from all other preparations examined. Nearly 60 

 specimens of the lagyra form are before me, and careful 

 comparison shows that whilst they vary in the extent of 

 the f.-w. black, and in the spotting of the h.-w. underside, 

 there are no constant pattern characteristics correlated 



