248 



M. W. R. de V. GRAHAM 



Figs. 186-194. I ^6, Micradelus rotundus Walker, <$, head ; 187, same, 9. antenna ; 

 188, Micradelus acutus sp. n., $, antenna ; 189, Semiotellus mundus (Walker), <J, 

 antenna ; 190, Semiotellus diversus (Walker), <J, antenna ; 191, Systasis tenuicomis 

 Walker, <$, antenna ; 192, same, $, antenna ; 193, Systasis parvula Thomson,^, antenna ; 

 194, same, $, antenna. 



