832 



M. W. R. de V. GRAHAM 



679 



685 



686 



Figs. 677-686. 677, Pachyneuron solitarium (Hartig), syntype $, clypeus ; 678, Pacyh- 

 neuron concolor (Forster), $, clypeus ; 679, Pachyneuron solitarium (Hartig), syntype 

 §, antenna, excluding scape ; 680, Pachyneuron grande Thomson, ?, head, profile ; 681, 

 Pachyneuron formosum Walker, $, head, profile ; 682, same, o* ; 683, Pachyneuron 

 umbratum Delucchi, $, head, profile ; 684, same, $ ; 685, Euneura augarus Walker, $, 

 head ; 686, Euneura laeviuscula sp. n., $, head. 



