98 HYMENOPTERA. 



thorax slightly varied with tints of green or gold : in some 

 examples the prothorax, mesothorax and scutellum with 

 golden effulgence ; the prothorax and mesothorax frequently 

 of a rich crimson, dashed with gold in the females ; the 

 head and thorax coarsely punctured ; the wings fuscous, 

 darkest towards their apical margins ; the flagellum and 

 mandibles black ; the tai'si rufo-testaceous. Abdomen 

 shining carmine-red, frequently with a golden lustre; the 

 terminal segment with the apical margin rounded, and with 

 a minute tooth on each side near the base. 



Walckenaer found this species parasitic upon species of 

 Halictl ; in this country it is very rare, so much so that 

 I never met with a single example, but it has occasionally 

 been found in Kent and Hampshire ; there is a fine series in 

 the collection of the British Museum. 



2. Hedychrum c^rulescens, St. Farg. Ann. du Muse, 



vii. 122, 10. 

 Shuck. Mon. Chrys. Ent. 

 Mag. iv. 172, 3. 

 Hedychrum chalyhceum, Dahlb. Hym. Eur. ii. 64, 35. 

 Klug. (viride, Mus. Berl.) 



Length 21 lines. Dark blue, tinged in some examples 

 with golden-green on the head and thorax; the flagellum 

 black, the tarsi obscurely testaceous; the wings clouded 

 towards their apex ; the head and thorax strongly and closely 

 punctured, the abdomen delicately so ; the apical margin of 

 the terminal segment rounded and entire. 



There are two examples of this species in the British 

 collection of the National Museum, taken in Devonshire. 



