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586 Dr. Ht. Wringham on the 
ot f£. conspicua, in which the discal spots are all joined and 
form a continuous patch from area 2 to 9. In the type 
the spots in 2 and 3 are proximally shorter than in 4, 
so that the inner edge of the patch is sharply angulated on 
nervule 4. (Very small examples of the conspicua form are 
extremely like nicomedes puelloides, but can be distinguished 
by the continuity of the f.-w. Imes in area 3.) 
It is in conspicua that we begin to get great stability m 
the form of the male armature. ‘That of the type is 
asymmetrical, whilst in examples outwardly agreemg more 
or less closely with the type we find various degrees of 
shortening and broadening of the claspers with irregular 
modification of the small projection at the end of that 
organ. From forms of this pattern we pass to examples 
in which there is a shortening of the spots in 4, 5, and 6 
so that the discal band presents a more evenly curved 
proximal outline. At the same time the spots become more 
or less separated by increased blackening of the nervules, 
the h.-w. discal band is also somewhat narrowed, and we 
have the form continuata of Holland. A slight further reduc- 
tion of the white markings, especially the spot in f.-w. 2, 
produces Holland’s melaniva, which seems hardly worth a 
separate name. 
I have before me several examples from the neighbour- 
hood of the Kassai River, the property of my friend Mr. J. J. 
Joicey. These have an expanse of about 50 mm. Many 
of them are indistinguishable from forms of seeldrayersv 
except for the absence of white dots in f.-w. cell above, 
and the streaked instead of spotted pattern in that area 
beneath. I have figured one on Pl. XXIII, fig. 9. 
Other examples from the same neighbourhood are 
smaller (35-40 mm.), and have all the f.-w. discal spots in 
2 and 3 fairly long, rounded at both ends, and about equally 
separated from each other and from that in 4. 
Lastly there is a form from Cameroon, Congo, Uganda, 
ete., which resembles conspicua except that there is a notable 
interval of the ground-colour between the spot in 3 and that 
in 4, Pl. XXIII, fig. 10. 
I refrain from naming these forms since they are not 
peculiar to definite localities, whilst numerous inter- 
mediates occur in long series. The male armatures are as 
variable as the patterns, and the whole assembly must for 
the present be regarded as an unstable species possibly 
modified by intrageneric mimicry of the kind so elaborately 
