96 HYMENOPTERA. 



and produced over the mandibles, the sides rounded, trun- 

 cated in front; the thorax truncated anteriorly and posteriorly ; 

 the metathorax toothed on each side ; the anterior wings with 

 an incomplete marginal cell ; the first sub-marginal cell in- 

 complete, the first and second discoidal cells complete. Ab- 

 domen very con vex,, with the apical margin of the terminal 

 segment multidentate. 



1. EucHR^us QUADRATUS, Shuck. (Lcach, MSS.)j Mon. 



Chrys. Ent. Mag. iv. 169. 

 Dahlb. Hym. Eur. ii. 373, 207. 

 Klug (Mus. Beroli.). 



JEiichrceus fesfivus, Mus. Spin. 



Length 3g lines. Green, dashed with golden lustre, the 

 region of the oceUi, an oblong-quadrate spot on the disk of 

 the thorax, a line on each side of it, the base of the second 

 abdominal segment, and the third entirely blue ; the scape 

 and legs golden-green, the knees and tarsi testaceous ; the 

 apical margin of the terminal segment with thirteen teeth, 

 the three central teeth widest apart ; the head and thorax 

 closely and strongly punctured ; the abdomen finely and 

 strongly punctured, but the punctures distant; the second 

 abdominal segment with a smooth, elevated, central carina. 



Of this beautiful insect I have only seen a single specimen 

 supposed to have been taken in England ; it is in the British 

 Museum, and bears a ticket with the locality Swansea. It 

 has been ascertained, that after the death of Dr. Leach a few 

 insects from the Continent, supposed to have been captured 

 in England, by accident were incorporated with the British 

 collection ; I think it somewhat doubtful whether the locality 

 given is not erroneous, the capture of a second specimen 

 would be decisive. 



