Mr. F. Walker on some neio species of Chalcidites. 209 



coppery, smooth, shining, concave above, deeply keeled beneath, 

 compressed at the tip which is bright purple, a little longer but 

 very much narrower than the chest ; metapodeon occupying full 

 one-third of the back; octoon and following segments short : legs 

 tawny ; middle legs paler than the fore-legs and dilated as usual ; 

 tips of their feet brown ; hind-legs piceous ; their shanks tawny with 

 piceous tips : wings narrow, nearly colourless except their tij)s, which 

 are gray ; veins piceous ; ulna about one-third of the length of the 

 humerus ; radius much longer than the ulna ; cubitus shorter than 

 the ulna, and forming with the radius a more acute angle than occurs 

 in Encyrtus ; brand extremely small. Length of the body ^ line ; of 

 the wings 1^ line, 



Eulophus Amempsinus. 



Tetrastichus flavifrons, fem. Nigro-viridis, capite fulvo, abdomine 

 nigro-purpureo, antennis fuscis, pedibus fulvis, metafemoribus 

 piceis, alls limpidis. 



Body smooth, shining : head tawny, broad, very short, impressed 

 between the eyes, bright yellow and somewhat dilated about the 

 region of the mouth, a little broader than the chest : eyes and eyelets 

 bright red, the former prominent : feelers pale brown, subclavate, 

 rather stout, more than half the length of the body ; first joint long, 

 dilated ; second tawny, cup-shaped ; the following joints from the 

 third to the sixth successively increasing in breadth and decreasing 

 in length ; club long-elliptical, broader than the sixth joint and more 

 than twice its length : chest short-elliptical, convex, greenish black, 

 rather broad : fore-chest very short, its length not more than one- 

 tenth of its breadth : shield of the mid- chest large ; sutures of the 

 parapsides very distinct and strongly marked, converging towards 

 the hind-border of the shield ; axillae parted by one-third of the 

 breadth of the chest ; scutcheon short, obconical, with two parallel 

 sutures along its back : hind-chest short and broad, hardly narrower 

 behind : petiole extremely short, so that the abdomen appears sessile : 

 abdomen short-elliptical, flat, purplish black, a little shorter and 

 narrower than the chest ; metapodeon and three following segments 

 of moderate length; the rest very short: oviduct pale tawny : legs pale 

 tawny ; tips of feet brown ; hind-thighs mostly piceous : wings broad, 

 colourless, pubescent, ciliated ; veins pale tawny ; ulna much longer 

 than the humerus ; radius shorter than the ulna ; cubitus not one- 

 third of the length of the radius ; brand extremely small. Length of 

 the body ^ line ; of the wings 11 line. 



Tetrastichus Silius, fem. Nigro-ceneus, antennis fulvis basi piceis, 

 pedibus fulvis, femoribus piceis, alis limpidis. 



Body smooth, shining : head black, broad, very short, impressed 

 between the eyes, very little broader than the chest : eyes and eye- 

 lets bright red, the former prominent : jaws ferruginous : feelers dull 

 tawny, subclavate, rather more than half the length of the body ; 

 first joint piceous ; second cup- shaped ; the following joints from the 



Ann. ^' Mag. N. Hist. Ser. 2. Vol. iii. 14 



