268 THE ENTOMOLOGIST. 



Dictynna. — From above : Black, fairly well clothed with darkish 

 orange-brown hairs. 



From below : Black or nearly black, with orange-brown hairs up 

 the centre, and lighter, sometimes quite light, ones at the sides ; the 

 light hairs not reaching to the tip. 



Asteria. — Short. From above : Black, very thickly clothed with 

 dark brown hair. 



From below : The same, with a few pale hairs on the inner side 

 of the base in the male, and on both sides of the base and further up 

 the inner side in the female. 



Antennje. 



Deione. — Black above, orange below, the orange being extended 

 over the tip on to the upper side. Each joint is edged with white, 

 which sometimes makes a white line between the black and the 

 orange. The depth of the orange colour varies greatly. 



Athalia. — -Black above, the joints barely outlined in white ; whitish 

 below, becoming yellow-brown towards the tip, this colour only very 

 slightly turning over on to the upper side. The whitish coloured 

 portion is much narrower than the orange in deione. Occasionally 

 the yellow-brown extends almost to the base of the antennae. 



Parthenie. — Brownish black above, the joints as conspicuously 

 edged with white as in deione, making the dark line narrow ; orange- 

 brown below, much darker than in athalia or deione, this colour 

 only very slightly, often not at all, turning over the dark side of 

 the tip. 



Varia. — Much less conspicuously edged with white than in 'par- 

 thenie, especially in the male, and even darker below ; a small white 

 patch at one side of the tip. 



Aurelia. — Dark brown above, with white edge ; a large white 

 patch at the side of the tip. Darker even than varia below, but 

 lighter orange-brown, though still dark, towards the tip. This colour, 

 even when showing on the upper side, does not look as if it were 

 folded over from below. 



Britomartis. — Very like athalia, but the under surface lighter, 

 frequently white, and the white runs right up into the tip, whicli is 

 edged with orange-brown. 



Dictynna. — Black above, distinctly ringed with white; pale yellow 

 or nearly white below, the white sometimes running up almost to the 

 end of the tip, which is red-brown or orange-brown, this colour show- 

 ing also on the upper side of the tip. 



Asteria. — Black throughout above, the joints slightly and occa- 

 sionally strongly indicated with white at the edge ; below, black or 

 very dark lirown, occasionally with white near the base and at the 

 side of the tip, rarely showing any orange-brown at the tip. 



There are still three other considerations to be taken into 

 account with regard to the perfect insect, even apart from neura- 

 tion and the male armature, namely, size, locality, and date. 

 Of these the first, though of some slight general value, is quite 

 useless in any doubtful case apart from the other two. In the 

 cases especially of athalia and dictynna, the variation in size, 



