1941] 
A New Stizus from Utah 
173 
dibles with a small tooth near the apex. Antennae long 
enough to reach the posterior face of the propodeum ; seg- 
ments 9-12 much shorter than the four preceding, 9 about 
Figure 1. 
Figure 2. 
Figure 3. 
Figure 4. 
Figure 5. 
Figure 6. 
Figure 7. 
Clypeus of Stizus iridis, sp. nov. 
Clypeus of Stizus occidentalis Parker (holotype male). 
Eighth sternite of Stizus iridis , sp. nov. 
Eighth sternite of Stizus occidentalis Parker (holotype 
male) . 
Male genitalia of Stizus iridis, sp. nov. 
Sixth tergite of Stizus brevipennis, lateral outline. 
Sixth tergite of Stizus texanus, lateral outline. 
two-thirds as long as 8, 13 tapering to a round end and not 
emarginate within ; tyloids present as linear carinse on seg- 
ments 6-13, that on 5 very short, practically a tubercle. 
