684 



UNITED STATES NATIONAL MUSEUM BULLETIN 224 



1034 



1052 



1035 



1037 



Figures 1031-1039. — 1031, Sisymodytes niveipilosus 

 Ricardo. 1032, Acnephalum andrenoides Weide- 

 mann. 1033, Holopogon nigripennis Meigen. 

 1034, Cylicornera rubrofasciata Lynch Arribalzaga. 



1053 



1036 



1039 



1035, Heteropogon ornatipes Loew. 1036, Mecyno- 

 pus pulverulentus Engel. 1037. Callinicus calca- 

 neus Loew. 1038, Cyrtopogon ruficornis Fabricius. 

 1039, Ceraturgopsis oklahomensis Bromley. 



