1941] 
A New Stizus from Utah 
181 
6. Anterior margin of clypeus with a broadly V-shaped 
emargination. Lateral margins of sixth tergite 
strongly sinuous (fig. 6) brevipennis Walsh 
Anterior margin of clypeus with a shallow rounded 
emargination. Lateral margins of sixth tergite with 
the basal three-quarters nearly straight (fig. 7) 
texanus Cress. 
Acknowledgments . — The author is much obliged to the 
numerous entomologists and museums whose material he 
has been permitted to study, and especially to Professor 
Brues for the privilege of describing the new species and 
permission to retain one of the paratypes. For assistance 
in the preparation of this paper, he is greatly indebted to 
the late Miss Grace A. Sandhouse and to Mr. Karl V. 
Krombein, both of the Bureau of Entomology and Plant 
Quarantine. 
