A HISTORY OF ESSEX 



common. 



A. furcata, which forms its cells in decaying posts, though 

 far from common, may often be heard even before it is seen busily 

 engaged among the flowers of Stacbys syhatica and other labiates. The 

 velvet coated humble bees and their parasites of the genus Psitbyrus, 

 which so closely resemble them, may be met with in all parts of the 

 county during the warmer portion of the year ; but two species are 

 very rare. Of Bombus lapponicus only a single specimen, which was cap- 

 tured on a sea holly flower at St. Osyth, has been found ; it is a moun- 

 tain species, and as far as can be ascertained no other specimen has been 

 recorded from the south of England. B. cullumanus has only been found 

 at Southend, where the late Mr. Frederick Smith took six examples 

 many years ago. 



A LIST OF THE ACULEATE HYMENOPTERA OCCURRING IN THE 



COUNTY 



HETEROGYNA 



FORMICIDJE 



Formica, L. 



rufa, L. 



fiisca, Latr. 



race i. cunicularia, Latr. 

 Lasius, Fabr. 



fiiliginosus, Latr. 



niger, L. 



race i. alienus, Forst 



flavus, De Geer 

 PONERID.* 



Ponera, Latr. 



punctatissima, Rog. 

 MYRMICID.S: 



Leptothorax, Mayr. 



tuberum, Fabr. race Nylanderi, Ffirst 

 Myrmica, Latr. 



rubra, L. 



race laevinodis, Nyl. 



,, ruginodis, Nyl. 



scabrinodis, Nyl. 



lobicornis, Nyl. 

 Solenopsis, Westw. 



fugax, Latr. 

 Monomorium pharaonis, L. 



FOSSORES 

 MUTILLID.S 

 Mutilla, L. 



europaea, L. 



rufipes, Latr. 

 Myrmosa, Latr. 



melanocephala, Fabr. 

 Methoca, Latr. 



ichneumon ides, Fabr. Southend (F. Smith) 



TlPHIID-ffi 



Tiphia, Fabr. 



femorata, Fabr. Colchester, Southend 



SAPYGID.*: 

 Sapyga, Latr. 



quinque punctata, Fabr. 

 POMPILID^ 



Pompilus, Fabr. 



unicolor, Spin. 



bicolor, Lep. 



rufipes, L. 



cinctellus, Spin. 



plumbeus, Fabr. 



consobrinus, Dahlb. 



minutulus, Dahlb. 



spissus, Schiodte 



chalybeatus, SchiSdte 



gibbus, Fabr. 



unguicularis, Thorns. 



wesmaeli, Thorns. 



pectinipes, V. de Lind. 

 Salius, Fabr. 



fuscus, L. 



afBnis, V. de Lind. Soutbend (F. 



Smith) 



exaltatus, Fabr. 



pusillus, Schiodte. 



parvulus, Dahlb. 

 Calicurgus, Lep. 



hyalinatus, Fabr. 

 Pseudagenia, Kohl. 



carbonaria, Scop. 

 Agenia, Schiodte. 



hircana, Fabr. 

 Ceropales, Latr. 



maculata, Fabr. 

 SPHEGID^E 



Astatus, Latr. 



boops, Schr. 

 Tachytes, Pz. 



unicolor, Pz. 



pectinipes, L. 



102 



