Insects in Great Britain. 
349 
including Eriocephala ; of twenty-two Syrphids, of thirteen 
species of Empis, of Pachymeria palparis, of five short-tongued 
Empids, of nine Muscids, one Sarcophagid, two Tachinids, 
three Cordylurids, of twenty-one Anthomyiids and twenty of 
other flies ; of twelve Coleoptera, two Hemiptera, and five 
other insects. A' obtained the visits of Apis mellifica,, of one 
Andrena, of one species of Vespa, of two Ants, and of twelve 
injurious Hymenoptera ; of one of the higher Lepidoptera 
(Miana fasciuncula), four short-tongued Lepidoptera, including 
Hepialis but not Eriocephala ; of eight Syrphids, four species 
of Empis, four short-tongued Empids, nine Muscids, one 
Sarcophagid, two Tachinids, three Scatophagids, sixteen of 
Anthomyiids, and of twenty-three other flies ; of seven Coleo- 
ptera, two Hemiptera, and two other insects. 167 species of 
insects made 6,156 visits to Class B', 104 made 1,482 visits to 
Class A ' ; the average number of visits per insect to Class B' 
is therefore 36-86, and the average to Class A' is 14*25. 
