APPENDIX. 161 



length : chest nearly oval ; fore-chest very short, hardly seen above; 

 shield of the middle-chest broad ; sutures of the parapsides strongly 

 marked ; scutcheon nearly rhomboidal ; hind-chest obconic, declin- 

 ing, of moderate size : petiole very short : abdomen smooth, shin- 

 ing, bronze on the disk, depressed above, keeled beneath, decreasing 

 in breadth from the base to the tip, narrower 'end much longer than 

 the chest ; sheaths of the oviduct black, hairy, nearly one-fourth of 

 the length of the abdomen : legs green ; knees yellow ; feet brown : 

 wings veiy slightly tinged with brown ; veins brown ; ulna half the 

 length of the humerus ; radius as long as the ulna ; cubitus much 

 shorter than the radius ; wing-brand of moderate size. Length 

 of the body f line ; of the wings 1 line. 



PSILONOTUS Achaeus. Fern. Aureo-viridis, antennis tibiisque 

 piceis, tarsis flavis, genubus et protarsis fulvis, alis limpidis. 

 Page 105. 



Head and chest bright golden green, shining, convex, finely 

 shagreened : head as broad as the chest ; front large, flat, produced 

 into a small obtuse tooth between the feelers ; the latter are inserted 

 by the mouth, piceous, subclavate, very slender, longer than the 

 chest; first joint long, slender, tawny, very slightly curved; second 

 long cup-shaped ; third and fourth small, but more distinct than is 

 usual in this family; fifth and following joints subquadrate, succes- 

 sively decreasing in length ; club spindle-shaped, a little broader 

 than the ninth joint and more than twice its length ; chest elliptical; 

 fore-chest very short ; shield of the middle-chest broad, flat ; sutures 

 of the parapsides indistinct ; axillae large, separated by nearly one- 

 third of the breadth of the chest ; scutcheon flat, nearly rhomboidal ; 

 hind-chest short, declining; petiole very short: abdomen lanceo- 

 late, much compressed, smooth, shining, concave above, keeled be- 

 neath, as long as the chest, but not more than one-third of its 

 breadth : hips and thighs green ; knees and fore feet tawny ; shanks 

 piceous, their tips and the four hinder feet yellow : wings colour- 

 less ; veins brown ; ulna full half the length of the humerus ; radius 

 shorter than the ulna ; cubitus shorter than the radius ; wing- 

 brand small. Length of the body f line ; of the wings l line. 



MACROMESUS. Page 106. 



Female. Head and chest convex, finely shagreened ; head as 

 broad as the chest ; feelers 14-jointed, subclavate, pubescent ; first 

 joint long, slender; second very long, cup-shaped; third and 

 fourth very short ; fifth and following joints long, linear ; club long, 



Q2 



