Syinpetrwn. 83 



tions at the base of the wings crimson ; on the sides 

 three obhque black Hnes, the middle one being short. 

 Legs black, with a yellowish line along the tibia; and 

 hind femora. Wings hyaline, the basal third of the hind- 

 wings saffron, and a smaller patch at the base of the 

 fore-wings of the same colour ; costa and other nervures 

 near it yellowish. Ptcrostigiiia 3mm. long, red. between 

 two black nervures. Acccssoiy incinbranc whitish, small. 

 Abdomen nearl}' c\'lindrical, but little contracted after 

 the third segment, not widened in the region of the 

 eighth ; in colour pale red, somewhat of the tint known 

 amongst artists as " light red " ; first segment nearly all 

 black, base of second black ; a small black mark on the 

 dorsal line of segments 8 and 9 ; two tin}' black spots 

 near the posterior margin of segments 3 to 7 ; a black 

 line along each side of segments 3 to the end. Anal 

 appendages, upper as long as ninth segment, cylindrical 

 pointed, brown at base, tips black ; lower dark brown, 

 short, truncate, turned up slightly at the distal edge, 

 whose margin is slightly concave. 



Female Imago. 



In the female olive-yellow takes the place of the red 

 colouring of the male, except in the case of the 

 pterostigma, which is red in the female also. Besides 

 this there are few points of difference. The pterostigma 

 is a little longer ; there is usuall)' a saffron patch on the 

 wings near the cubital point, and that on the hind- 

 wings is generally of larger size than in the male. The 

 vulvar scale is not prominent. The anal appendages are 

 about as long as the ninth segment and coloured like 

 those of the male 



G 2 



