174 
Psyche 
[December 
Thorax (in dorsal view) somewhat rectangular; prono- 
tum not elongate; parapsidal furrows not extended to the 
posterior margin of the mesoscutum, each represented by a 
slender carina with an extremely fine longitudinal impres- 
sion ; sutures defining the propodeal area strongly im- 
pressed ; meso-metapleural suture sinuous, but not strongly 
curved anteriorly; hind angles of the propodeum tumid. 
Fore wings 17-18 mm. long, about four times as long as the 
distance between the posterior lateral angles of the meso- 
scutum, the first transverse cubital vein practically straight. 
Legs slender. 
Abdomen large and elongate ; first tergite with a flattened 
anterior face, in dorsal aspect roundly angulate anteriorly, 
the concave sides (as seen from above) parallel towards the 
base, diverging posteriorly. 
The puncturation is fairly coarse and dense over most of 
the body. The clypeus and supraclypeal area, however, are 
very finely punctate, and anterior to the black band across 
the vertex are two areas with coarse, well-separated punc- 
tures. 
The pubescence is pale and generally distributed, but 
longer, or at least more conspicuous, on the posterior half of 
the clypeus, the sides of the supraclypeal area, the anterior 
portion of the supra-antennal area, the vertex and the adja- 
cent occiput, the lower portion of the gense, the lower por- 
tion of the mesopleura, the mesosternum, the posterior 
angles of the propodeum, and the first tergite. 
Female . — Unknown. 
Types . — Holotype, Museum of Comparative Zoology, 
Cambridge, No. 23897. One paratype, U. S. National Mu- 
seum, No. 55828. One paratype in the author’s collection. 
Type locality . — Rainbow Bridge National Monument, San 
Juan County, Utah. 
Distribution . — Holotype male and two male paratypes 
taken at the type locality, July 16, 1935, by Professor C. T. 
Brues, who kindly supplied the following notes. 
“The specimens of the new Stizus were collected in the 
canyon about half a mile above Rainbow Natural Bridge 
near the camp established for visitors. Close to the open 
space in which the camp is situated are cliffs that form one 
