56 HYMENOPTERA. 



the most unsuccessful campaign that ever fell to my lot; the 

 results will, however, add a few crumbs to our entomological 

 banquet. 



In the neighbourhood of Warwick I did not meet with a 

 single Hymenopterous insect that is not common in the 

 London district ; but I am led to the belief, that the Coleop- 

 terist would fare better, the district being beautifully wooded 

 and in many respects a charming locality. 



My visit to Lowestoft yielded nothing that has not been 

 recorded as occurring there in former volumes of the Ento- 

 mological x'\nnual. I had, however, a particular purpose in 

 visiting this locality, but my hopes were doomed to disap- 

 pointment. I have recorded my endeavours in former years 

 to discover, by rearing the insect from the caterpillar, the 

 male of tlie Tenthredo, Eriocajiipa ovata ; an insect found 

 throughout Europe, described by Linnaeus, very plentiful 

 occasionally in this country as well as on the continent; but 

 of which no one has been successful in discovering the male. 

 I have usually taken the insect about the latter part of July 

 and during the month of August, at which period the larvae 

 are abundant, feeding upon the alder. I have twice reared 

 a considerable number of Eriocampa from the caterpillar; 

 on one occasion about fifty, and subsequently upwards of a 

 hundred, the w^hole of which have proved to be females. I 

 therefore thought I would visit the locality a few weeks 

 earlier; I did so, but I found only the female sex. The 

 male has, therefore, yet to be discovered, and I still think the 

 most likely way for doing so is by rearing large numbers 

 from the caterpillar state. 



My visit to North Devon enables me to add three species 

 of ApidcB to the list published in last year's Annual, Andrena 

 spinigera, Megachile maritima and Ccelioxys vectis. The 

 first species was taken near to Ilfracombe; the Megachile 



