EREBIA MANTO AND E. GAVAKNIENSIS. Ill 



(6) Nei'vures 6 and 7 rising closer together and ending further 

 apart than in iiianto. — Here Dr. Chapman again misinterprets my notes, 

 and makes it merely a question of whether the actual distance in one 

 specimen between 6 and 7 is greater or less than the same distance in 

 another. My object was to illustrate the position of nervure 6, which 

 is differently placed in the two species. In i/avarniemh it rises as 

 nearly as possible half-way between 5 and 7, and ends five-eighths of the 

 way from 7. In niauto it rises always iiioi-e than half-way from 7, and 

 in the majority of cases two-thirds of the way between 5 and 7, and 

 ends exactly half-way between the two. 



(7) Nervure 5 further from 6 in (/avaminifiis. — Dr. Chapman again 

 says he sees no difference, but the point has just been proved in show- 

 ing the position of 6. Only one-third of the distance between 5 and 7 

 separates 5 from 6 in iiianto, while in i/ararnieusis they are half the 

 distance apart. Reference to the plate shows these last two points 

 very clearly. 



I have added figs. 9, 18, 25, and 26 to show the neuration of E. 

 oeiiie. In the genus Krebia, with so many very closely allied species, 

 one does not expect to find very great differences in the neuration, but 

 I was surprised to find that between oe}ne and vianto there is almost 

 none. Indeed, the only difference I am able to find is the position of 

 nervure 6 in the hindwing. As five of my seven points remain un- 

 affected by Dr. Chapman's criticism, it is evident that, on the neuration, 

 (lararniends has a stronger claim to separation from viantn than has 

 ociiie. 



The ground colour of the undersides of the males is next dealt 

 with by Dr. Chapman. He states that specimens of the var. caecilia, 

 in his possession, from the Lower Engadine, approach much nearer 

 (/avariiiensis than type iiiniito : and also that forms of hututo, in this 

 series, are darker than the usual type. 



In the Fison collection there is a long series of manto from all over 

 Switzerland. To mention some of the localities: Mollis, Ctn. Glarus; 

 Dischma-tal ; Val Rosegg ; Gd. Mythen ; Sefineutal ; Miinnlichen ; 

 Dent du Midi; Emaney ; above Gryon ; etc. — in all, about 130 

 specimens of the type and var. caecilia, and all sorts of intermediate 

 vars. 



Among the type J s there are, perhaps, a dozen specimens which 

 have lost the mahogany suffusion in the basal half of the forewings. 

 Of the var. caecilia, there are ten which agree exactly with my own, 

 i.e., the markings obsolete, and the mahogany colouring of the type 

 unaltered ; and six which have lost it, to a certain extent, in the basal 

 area of the forewings. In the numerous intermediate forms there are 

 several which show this partial absence of colouring in the forewings, 

 and also slightly in the hindwings ; but, out of the lot, there is not 

 anything which could be said to approach t/ararniem^i^, nor could I see 

 any sign of intermediate specimens, which had lost a fair amount of 

 markings, getting a darker ground colour. Of course, old specimens 

 (or worn ones) may appear to have lost the colouring, this being 

 particularly noticeable in faded specimens, but, in such cases, an 

 examination with a lens always shows the colouring has been there. 

 I have, of course, not seen Dr. Chapman's specimens, but conclude, 

 from what he says, that they must be a still darker var. of manto than 

 anything I have yet seen. When dealing with such an extraordinarily 



