214 
A. lychnidis, Linn. On Lychnis sp., rare. 
A. pomi, De Geer. On Pyrus spp., common throughout the 
summer. 
A. pruni, Reawm. On Prunus sp. 
A. pyri, Boyer. On Pyrus spp., rolling the margins of the 
leaves which turn red. 
rumicis, Linn. On poppies, Huonymus, docks. 
A. saliceti, Kalt. On willows, but scarce. 
A, viburni, Fabr. n Pe th Opulus. Several authors 
maintain that this species is the same as the one found on Ribes 
(A. grossulariae, Kalt.). If such were the case, under the condi- 
tions prevailing in the Gardens, one would expect to find A. 
grossulariae, but though careful search has been made repeatedly 
or it it has not been found. 
Subfamily CaLLierEeRINae. 
Myzocallis alni, De Geer. On Alders. 
M. castaneae, Buckt. (castanicola, Baker). Swarming on 
Quercus sp. in 1915. 
M. coryli, Goeze. On Corylus, common. 
M. (Tuberculatus) quercus, Kalt. This appears to be the 
species regularly found on Oaks within the Gardens. 
Euceraphis betulae, Zinn. The common species on Birches. 
Callipterus betulicola, Kalt. On Birch, occasionally, 
Cc. juglandis, Goeze. On Walnut trees, very rare. 
Eucallipterus tiliae, Zinn. On Lime trees, rather common. 
Phyllaphis fagi, Zinn. On Beech trees, common throughout 
the summer, the copper variety appearing to be attacked more 
heavily than the ordinary one. 
Chromaphis juglandicola (Kalt.). On Walnut trees, very 
rare. 
Subfamily CuarropHoRINaz. 
Chaitophorus, Koch. 
- aceris, Linn. Common on all species of Acer. 
Subfamily Lacunrnae. 
Lachnus, Burm. 
L. agilis, Kalt. On Pinus sylvestris, rare. 
L. hyalinus, Koch. On Pinus sylvestris, rare. 
- pini, Linn. On Pinus sylvestris, frequent. 
L. juniperi, Linn. On Juniperus virginiana (Red Cedar), 8 
apterous females, 28. viii. 1919. 
Subfamily Scurzonzurmag. 
Anoecia corni, Hartig. ged females of this species may 
always be found on Forsythia, but the true host-plants are the 
numerous species of Cornus growing within the Gardens. 
