Species of the Genus Limenitis. 479 



that of weidemeyeri in the manner that archippns and 

 astyanax have sprung from arthc7ms. It is by no means 

 improbable that, apart from the modifications which have 

 produced a superficial resemblance to califomica, the 

 pattern of lorquini is more ancestral than that of the non- 

 mimetic weidemeyeri. 



On the upper surface the pattern of lorquini closely 

 corresponds with that of weidemeyeri, but differs in the 

 details described in the following section. 



The apical area of the fore-wing is bright fulvous : the 

 pale markings are cream-coloured instead of white : the 

 whole discal band is placed nearer to the base of the wings, 

 especially in the case of the hind : this band is also drawn 

 out to a more pointed extremity towards the anal angle 

 of the hind-wing : the constituent spots of the band, 

 especially in the fore-wing, are more completely separated 

 by strongly blackened veins. 



An interesting feature possessed by certain individuals 

 of both species is seen in the series of deep reddish spots, 

 inconspicuous against the dark ground colour, placed along 

 the outer border of the pale band in the hind-wing. These 

 spots evidently represent the more prominent series com- 

 monly developed in arthemis. The complete series is 

 occasionally quite distinct in lorquini; but as a rule the 

 only conspicuous member is the spot at the anal angle of 

 the hind-wing, where also a single spot of an outer series 

 is often present. Of weidemeyeri I have had little 

 material for careful study ; but the red spots are faintly 

 visible in one out of two specimens. 



The inner edge of the white band of the fore-wing of 

 weidemeyeri cuts the inner margin about opposite the 

 centre of the white costal spot of the hind-wing, a spot 

 much produced inwards towards the base of the wing as 

 compared with the rest of the hind-wing series, as may be 

 seen in Plate XXV, fig. 10 (in Fig. 1 the inward extension 

 of the spot is concealed, especially on the left side, by the 

 overlap of the fore-wing). In lorquini, which preserves 

 the same general arrangement, the inner edge of the fore- 

 wing band meets the costal spot of the hind-wing near its 

 outer edge, thus forming a more pronounced step-like 

 break than in weidemeyeri. The females of lorquini 

 which I have had the opportunity of studying are in this 

 respect in the condition of weidemeyeri. The white spot, 

 which is almost invariably well developed in the fore-wing 



