156 APPENDIX. 



rus ; radius not half the length of the ulna ; cubitus much shorter 

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

 body J line ; of the wings 1^ line. 



Gastrancistrus Accia. Fern. Viridis, terebra brevissima, 

 antennis nigris, tibiis fuscis, genubus tarsisque flavis, alis 

 limpidis. Page 105. 



Allied to G. annulipes, but more slender. Bright green : head 

 and chest convex, finely shagreened: head as broad as the chest: 

 eyes red : feelers elavate, black, a little shorter than the chest ; first 

 joint long, slender; second cup-shaped; third aud fourth very mi- 

 nute; fifth and following joints transverse, short, successively in- 

 creasing in breadth ; club ovate-conical, broader than the tenth 

 joint and more than twice its length : chest elliptical ; fore-chest 

 very short ; shield of the middle-chest large ; sutures of the parap- 

 sides strongly marked, approaching each other ; scutcheon rhom- 

 boidal : hind-chest obconical, declining, of moderate size : petiole 

 very short : abdomen slender, spindle-shaped, smooth, shining, con- 

 cave above, keeled beneath, longer and narrower than the chest ; 

 sheaths of the oviduct black, hairy, hardly one- fifth of the length of 

 the abdomen : legs green ; shanks brown ; knees and feet yellow ? 

 tips of the latter brown : wings colourless ; veins brown ; ulna 

 much shorter than the humerus ; radius a little shorter than the ul- 

 na ; cubitus much shorter than the radius ; wing-brand small. 

 Length of the body f line ; of the wings \\ line. 



Gastrancistrus Hamillus. Fern. JEneus, capite viridi, an- 

 tennis fulvis, alis limpidis. Page 105. 



Allied to G. autumnalis. Brassy : head and chest convex, 

 finely shagreened : head green, broader than the chest : feelers sub- 

 clavate, tawny, as long as the chest; first joint long, slender, yel- 

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

 following joints closely joined together, successively increasing in 

 breadth till the tenth ; club spindle-shaped, pointed, not broader 

 than the tenth joint, but more than twice its length, narrower than 

 that of G. autumnalis: chest brassy, nearly elliptical; fore-chest 

 short, just visible above ; shield of the middle-chest rather broad ; 

 sutures of the parapsides strongly marked ; axillae separated from 

 each other by at least one-third of the breadth of the shield ; 

 scutcheon nearly conical ; hind-chest obconical, declining, of mode- 

 rate size ; petiole very short: abdomen elliptical, smooth, shining, 

 concave above, slightly keeled beneath, narrower and a little longer 



