174 APPENDIX. 



lowing joints from the fifth to the tenth successively decreasing in 

 length ; club long-conical, much longer than the tenth joint : chest 

 elliptical : fore-chest very short ; its length ahove not more than 

 one-eighth of its hreadth ; hind-border very concave : shield of the 

 mid-chest rather long ; sutures of the parapsides distinct ; axillae 

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

 subrhomboidal : hind-chest rather broad, short-obconical, slightly 

 declining : petiole very short : abdomen oval, smooth, depressed, 

 dark purple on the disk, a little shorter but hardly narrower than the 

 chest ; metapodeon occupying more than half of the back ; octoon 

 about one-third of the length of the metapodeon ; ennaton shorter ; 

 decaton and the following segments very short : legs tawny; hips 

 and thighs green ; four hinder-shanks and feet piceous : wings 

 very slightly tinged with gray ; veins piceous ; ulna a little shorter 

 than the humerus ; radius shorter than the ulna ; cubitus about 

 half the length of the radius; wing-brand very small, forked. 

 Length of the body 1 line ; of the wings 1 J line. 



PTEROMALUS ^Eson. Mas. Viridis, abdomine purpureo-ceneo, 

 antennis fuscis, pedibus flavis, femoribus viridibus, alls sub- 

 fulvis. Page 119. 



Body nearly linear : head and chest green, convex, finely sha- 

 greened : head broader than the chest : eyes and eyelets red : feel- 

 ers brown, filiform, as long as the chest; first joint yellow, long, 

 linear ; second cup-shaped ; third and fourth very small ; fifth and 

 following joints oblong-quadrate, but successively decreasing in 

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

 chest nearly linear : fore-chest very short : shield of the middle- 

 chest rather long ; sutures of the parapsides indistinct; axillae se- 

 parated by rather less than one-fourth of the breadth of the chest ; 

 scutcheon subrhomboidal, having a very slight trace of a transverse 

 suture before its tip : hind-chest of moderate size, obconical, 

 declining : petiole very short : abdomen aeneous-green, flat, smooth, 

 shining, shorter than the chest ; the disk is purplish brown ; meta- 

 podeon occupying nearly one-third of the back ; octoon and follow- 

 ing segments of moderate size : legs bright yellow ; hips and thighs 

 green ; tips of the feet brown : wings with a slight tawny tinge, 

 especially beneath the ulna and the radius ; ulna hardly half the 

 length of the humerus ; radius a little longer than the ulna ; cubi- 

 tus shorter than the ulna ; wing-brand very small. Length of the 

 body 1J line; of the wings 2 lines. 



