APPENDIX. 203 



breadth ; hind-border very slightly concave : shield of the mid-chest 

 rather short ; sutures of the parapsides very indistinct ; axillae 

 parted by about one-fourth of the breadth of the chest ; scutcheon 

 subrhomboidal : hind-chest short, slightly obconical, declining, with 

 a ridge along the middle a.nd a rim on each side : petiole very 

 short : abdomen oval, smooth, depressed above, hardly keeled be- 

 neath, scarcely longer or broader than the chest ; disk purple, which 

 colour mingled with a brassy tinge extends along the hind-border of 

 each segment ; metapodeon occupying full one-sixth of the back ; 

 hind-border slightly convex ; octoon and following segments of mo- 

 derate and equal size : legs bright pale tawny ; hips green ; thighs 

 piceous towards the base ; four hinder-knees and feet pale yellow, 

 tips of the latter piceous : wings colourless ; veins pale tawny ; ul- 

 na hardly half the length of the huraerus ; radius a little longer 

 than the ulna ; cubitus much shorter than the ulna ; wing-brand 

 pale brown, very small. Length of the body 1 line ; of the wings 

 2 lines. 



PTEROMALUS Sybritia. Fern. Viridis, cyaneo cupreo purpureoque 

 varius, antennis nigris, pedibus flavo-fulvis, femoribus piceo- 

 vittatis^ alis limpidis. Page 126. 



Head and chest convex, finely shagreened : green slightly 

 tinged with blue and copper colour : head large, broader than the 

 chest : eyes and eyelets dark red : feelers black, subclavate, rather 

 slender, piceous towards the tip ; first joint long, slender, tawny to- 

 wards the base ; second long-cup-shaped ; third and fourth very 

 small ; the following joints from the fifth to the tenth successively 

 decreasing in length ; club long-conical, more than twice the length 

 of the tenth joint : chest elliptical : fore-chest very short ; its 

 length above less than one-tenth of its breadth ; hind-border slightly 

 concave : sutures of the parapsides indistinct ; axillae parted by ra- 

 ther less than one-fourth of the breadth of the chest ; scutcheon 

 subrhomboidal, with a suture along each side : hind-chest rather 

 short, declining, golden green, almost smooth, with an impression 

 on each side of the fore-border : petiole very short : abdomen long- 

 oval, smooth, bright bluish green, depressed above, keeled beneath, 

 very little narrower and shorter than the chest ; disk purple ; angle 

 of the keel very near the base ; metapodeon occupying about one- 

 fourth of the back ; octoon and three following segments of mode- 

 rate size ; paratelum and telum rather short : legs bright tawny ; 

 hips green ; thighs with piceous stripes ; four hinder-shanks and 

 feet bright pale yellow ; tips of the latter piceous : wings colourless ; 

 veins pale tawny ; ulna about half the length of the humerus ; ra~ 



