178 APPENDIX. 



PTEROMALUS Tychon. Fern. Niger, abdomine csneo macula 

 basali fulva, antennis nigris^ pedibus fulvis, alis limpidis. 

 Page 120. 



Body very broad : head and chest black, convex, shagreened : 

 head large, broader than the chest: eyes and eyelets dark red : feel- 

 ers black, subclavate, much longer than the chest ; first joint long, 

 slender, tawny ; second cup-shaped ; third and fourth very small ; 

 the following joints from the fifth to the tenth successively decreas- 

 ing in length ; club spindle-shaped, a little broader than the tenth 

 joint and more than twice its length : chest short-elliptical, robust : 

 fore-chest extremely short ; its length above less than one-tenth of 

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

 broad and short; sutures of the parapsides very indistinct; axillae 

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

 subrhomboidal, with a slight transverse suture near its tip ; hind- 

 chest large, declining, slightly obconical, with a ridge along the 

 middle: petiole very short: abdomen short-elliptical, smooth, flat 

 above, keeled beneath, brassy with an indistinct tawny spot near the 

 base which is green, much shorter but hardly narrower than the 

 chest ; its length slightly exceeding its breadth ; metapodeon occu- 

 pying about one-third of the back ; octoon full half the length of 

 the metapodeon ; ennaton and all the following segments short but 

 distinct : legs tawny ; hips brassy : wings colourless ; veins tawny; 

 ulna rather less than half the length of the humerus ; radius a little 

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

 brand very small. Length of the body lj line ; of the wings 2 

 lines. 



PTEROMALUS Cerycus. Fem. Viridis, abdomine cyaneo pur- 

 pureoque vario, antennis nigris, pedibus fulvo-flavis, alis lim- 

 pidis. Page 120. 



Body bright green, rather narrow : head and chest convex, 

 finely shagreened : head broader than the chest : eyes and eyelets 

 red : feelers black, clavate, slender, nearly as long as the chest ; 

 first joint lon<r, slender, yellow, slightly bent, black towards the tip ; 

 second cup-shaped ; third and fourth very small ; the following 

 joints from the fifth to the tenth successively decreasing in length ; 

 club conical, more than twice the length of the tenth joint : chest 

 nearly elliptical : fore-chest very short ; its length above less than 

 one-tenth of its breadth ; hind-border concave : shield of the mid- 

 chest rather flat ; sutures of the parapsides very indistinct ; axillae 

 parted by nearly one-third of the breadth of the chest ; scutcheon 



