208 APPENDIX. 



PTEROMALUS Priansos. Fern. Viridi-cyaneus, abdominis disco 

 nigro purpureo, antennis pedibusque fulvis , femoribus cyaneo- 

 viridibus, tibiis piceo fasciat is, alls limpidis. Page 126. 



Greenish blue : head and chest convex, finely shagreened : 

 head as broad as the chest : eyes and eyelets red : feelers piceous, 

 clavate, slender, rather shorter than the chest ; first joint long, slen- 

 der, tawny at the base; second cup-shaped; third and fourth very 

 small ; the following joints from the fifth to the tenth successively 

 decreasing in length ; club oval, much broader than the tenth joint 

 and more than twice its length : chest short-elliptical : fore-chest 

 short ; its length about one-eighth of its breadth : shield of the 

 mid-chest rather long ; sutures of the parapsides indistinct ; axilla? 

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

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

 short, declining, with a ridge along the middle and a rim on each 

 side : petiole very short : abdomen spindle-shaped, smooth, de- 

 pressed above, deeply keeled beneath, narrower and much longer 

 than the chest ; disk blackish purple ; metapodeon occupying ra- 

 ther less than one-fourth of the back ; octoon and ennaton of equal 

 size ; decaton and protelura longer ; paratelum and telum shorter : 

 legs tawny ; hips and thighs bluish green ; a broad piceous band 

 across each of the four hinder-shanks ; four hinder-feet pale tawny 

 with piceous tips : wings colourless ; veins pale tawny ; ulna hardly 

 half the length of the humerus ; radius about as long as the ulna ; 

 cubitus much shorter than the radius: wing-brand very small. 

 Length of the body lj line ; of the wings 2 lines. 



Var. /3. Head and chest green. 



PTEROMA.LUS Gigon. Fern. Viridis, abdomine purpureo-aneo , 

 antennis nigris, pedibus fulvis, alls limpidis. Page 126. 



Allied to P. domesticus. Body rather short : head and chest 

 green, convex, finely shagreened : head very little broader than the 

 chest : eyes and eyelets red : feelers black, clavate, shorter than the 

 chest; first joint green, long, slender; second cup-shaped ; third 

 and fourth very small ; the following joints to the tenth short, trans- 

 verse ; club conical, hardly broader than the tenth joint but more 

 than twice its length : chest elliptical, not much developed : fore- 

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

 its breadth : shield of the mid-chest short ; sutures of the parapsides 

 very indistinct, almost obsolete ; axillae parted by full one-fourth of 

 the chest ; scutcheon subrhomboidal : hind-chest transverse, rather 

 short, slightly declining, with a slight ridge along the middle and a 



