198 APPENDIX. 



side : petiole very short : abdomen smooth, flat, linear, conical at 

 the base and pointed at the tip, purplish copper, with a pale yellow 

 spot near the base which is green, shorter and narrower than the 

 chest ; metapodeon occupying more than one-third of the back ; 

 octoon and following segments of moderate size : legs yellow ; hips 

 green ; a brown line along the whole length of each hind-thigh ; tips 

 of feet brown : wings colourless ; veins tawny ; ulna nearly as long 

 as the humerus ; radius shorter than the ulna ; cubitus very nearly 

 half the length of the ulna ; wing-brand very small. Length of the 

 body 1 J line ; of the wings 2 lines. 



PTEROMALUS Rhytium. Mas. Viridis, abdominis disco purpu- 

 reo-cupreo,antennis fuscis, pedibus Jlavis, alis limpidis. Page 

 125. 



Head and chest bright green, convex, finely shagreened : head 

 much broader than the chest : eyes and eyelets red : feelers fili- 

 form, brown, rather hairy, a little longer than the chest ; first joint 

 yellow, long, rather stout, piceous at the tip ; second cup-shaped ; 

 third and fourth very small; the following joints from the fifth to 

 the tenth successively decreasing in length ; club spindle-shaped, 

 more than twice the length of the tenth joint : chest elliptical : 

 fore-chest very short ; its length less. than one-tenth of its breadth : 

 sutures of the parapsides very indistinct ; axillae parted by one- 

 fourth of the breadth of the chest ; scutcheon subrhomboidal : 

 hind-chest rather large, obconical, declining, with a ridge along the 

 middle : petiole very short : abdomen linear, flat, smooth, purplish 

 copper, green at the base and at the tip, much narrower but hardly 

 longer than the chest ; metapodeon occupying rather less than one- 

 fourth of the back ; octoon and following segments of moderate 

 size : legs bright yellow ; hips green ; middle-feet and hind-feet 

 pale yellow with brown tips : wings colourless ; veins pale tawny ; 

 ulna rather more than half the length of the humerus ; radius much 

 shorter than the ulna ; cubitus a little shorter than the ulna ; wing- 

 brand small. Length of the body 1 line ; of the wings If line. 



Var. /3. Chest coppery green : hind-chest bluish green. 



PTEROMALUS Myle. Fern. JEneus, abdomine viridi disco pur- 

 pureo,antennisfulvis, pedibus rufis, alisfulvis. Page 125. 



Body short : head and chest convex, brassy, very finely sha- 

 greened : head large, much broader than the chest : eyes and eye- 

 lets dark red : feelers tawny, subclavate, shorter than the chest ; 

 first joint pale red, long, slender ; second cup-shaped ; third and 



