194 APPENDIX. 



the following joints to the tenth successively decreasing in length ; 

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

 chest oval, coppery-green : fore-chest short ; its length above less 

 than one-tenth of its breadth ; it is produced slightly in front 

 where it is narrower, declining, and wrinkled : shield of the mid- 

 chest broad ; sutures of the parapsides indistinct ; axillae parted by 

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

 subrhomboidal, with a suture along each side, and a well defined 

 transverse channel near the tip : hind-chest rather short, obconical, 

 declining, nearly smooth, with its fore-shield distinct, and having a 

 forked ridge along the middle and a rim on each side : petiole very 

 short : abdomen spindle-shaped, finely shagreened, purplish copper, 

 bluish green at the base, depressed above, keeled beneath, hairy to- 

 wards the tip, a little longer than the chest ; melapodeon occupying 

 less than one-sixth of the back ; the following segments from the 

 octoon to the paratelum successively increasing in length : legs red ; 

 hips green ; feet yellow with tawny tips ; sheaths of the oviduct 

 black, hahy, appearing just beyond the tip of the abdomen : wings 

 with a slight tawny tinge ; each 'fore- wing with a large brown spot 

 beneath the brand; veins piceous; ulna much less than half the 

 length of the humerus ; radius very much longer than the ulna ; 

 cubitus much shorter than the ulna ; wing-brand small. Length of 

 the body 2 lines ; of the wings 3J lines. 



PTEROMALUS Lyttus. Fern. JEneo-viridis, abdomine cyaneo- 

 viridi, disco purpureo, antennis nigris, pedibus fulvis , alls lim- 

 pidis. Page 121. 



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

 a little broader than the chest : eyes and eyelets piceous : feelers 

 black, clavate, rather hairy, much shorter than the chest; first joint 

 long 1 , slender, green ; second cup-shaped ; third and fourth veiy 

 small ; the following joints to the tenth successively decreasing in 

 length; club long-conical, rather broader than the tenth joint and 

 more than twice its length : chest long-oval : fore-chest very short ; 

 its length hardly more than one-tenth of its breadth : shield of the 

 mid-chest broad ; sutures of the parapsides very indistinct ; axilla? 

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

 rhomboidal, with a suture along each side : hind-chest of moderate 

 size, obconical, declining, nearly smooth, with a ridge along the 

 middle and a rim on each side : petiole very short : abdomen long- 

 elliptical, smooth, bluish-green, purple on the disk, bright green at 

 the base, depressed above, slightly keeled beneath, longer and 

 a little broader than the chest; metapodeon occupying rather less 

 than one-fourth of the back ; octoon and all the following segments 



