GompJins. 1 5 3 



meta-thorax ; at the attachment of the wings the thorax 

 is black, with yellow points ; between the wings x-ellow. 

 Wings hyaline, with a faint yellow tinge towards the 

 base ; anal angle of hind-wings pointed and deeply-cut 

 out previous to the point. Ptcrostiguia brown or orange- 

 brown, between black nervures ; on fore-wings 3rnm., on 

 hind ones rather longer. Accessory uiembranc extremel}- 

 narrow, whitish. Legs black, coxa; }-ellow above. 

 Ahdomoi, first and second .segments swollen, third much 

 contracted, then gradually expanding to the eighth, and 

 afterwards contracting again ; seventh, eighth, and ninth 

 segments winged laterally ; colour black with \-ellow 

 markings ; first segment nearly all }-ellow ; second with 

 dorsal three-lobed spot, a pair of yellow auricles at 

 sides, lower part of sides yellow, and male organs black 

 and prominent ; segments 3 to 7, with }-ellow 

 mid-dorsal streak, wider at base, decreasing in extent 

 posteriori}- ; sutures between segments 6, 7, 8, and 9 

 }'ellow ; between segments 3, 4, 5, 6, and 7 small lateral 

 spot at sutures, much more enlarged on 8 and 9. Anal 

 appendages black ; upper, short, c}dindrical, divergent ; 

 lower one divided, in appearance resembling the u[jper 

 two, and h'ing below them. 



Female Imago. 



Ver}' closeh' resembling male, but abdomen less con- 

 stricted about segments 3 and 4 ; more \-ellow on sides, 

 anal angle of hind-wings rounded, no yellow tint at base, 

 no auricles on second segment of abdomen. Pterostignia 

 3mm. on fore-wings, 4mm. on hind ones. Anal appendages 

 short, black, pointed. ]lilvar scale not projecting, 



triangular, with the apex bifid, channelled below. 



