NOTES ON HYMENOPTERA. 95 



Paxurgus calcaratus. — Extremely local in its dis- 

 tribution, but plentiful at Bournemouth ; this insect frequents 

 the common mouse-ear hawkweed {Mieracium jnlosella). 



NoMADA BACCATA. — This bcautiful little species is parasitic 

 upon Andrena argentata ; it is plentiful at Bournemouth; 

 the parasite and the bee I have always found together. 



Megachile versicolor. — I captured a single specimen 

 of this very rare bee in a meadow to the west of the Sana- 

 torium at Bournemouth ; probably it was too late a period 

 in the season; the male is not known. 



BoMBUs Smithiaxus.— This fine species was taken in 

 June last in Shetland, by Mr. Rich; all the specimens that 

 I have seen have been captured near Lerwick. 



BoMBUS POMORUM. — The addition of this fine species to 

 the British list is mainly due to my son Edward, who took 

 a female in June last on the sandhills at Deal. 



It will be observed that I have adopted an opinion difi:ering 

 from that of several eminent Hymenopterists in considering 

 the Bremus pomorum of Panzer to be a true Bomhus, not 

 an Apathus; this arises from the fact of my having had 

 specimens for examination. Opinions contrary to my own 

 were, I have little doubt, based upon an examination of the 

 figure in Panzer's " Fauna Germanica." In the year 1837 

 I captured three male humble bees, which at that time 

 I regarded as veiy highly-coloured examples of the male of 

 Apathus rupesfriSf and as such they were, without very 

 critical examination, arranged in my Collection. A female 

 Bomhus being captured that was unknown to me, but 

 which bore a strong resemblance to the three supposed 

 Apatkij taken in the same neighbourhood, induced me to 



