1914} The Bee Genus Celioxys. 159 
Ccelioxys pratti new species. 
Female. Length 11.5 mm. Very similar to C. octodentata but 
differs in the clypeus having many erect, brown, bristle-like hairs among 
the dense white pubescence, the eyes with longer, much denser and 
distinctly brownish pubescence, the punctures of the mesonotum 
somewhat finer and denser, the first abdominal segment with close 
punctures, those laterad separated by much less than a puncture 
width; fifth ventral abdominal segment with coarse punctures only 
at base. 
One female with the record Kerrville, Texas, April 14, 1907, 
on Marrubium vulgare, H. Durham, collector. 
Type—Specimen: Cat. No. 18225, U.S. N. M. 
C. octodentata has the punctures of the mesonotum well 
separated medially, the first segment with the punctures toward 
sides separated by more than a puncture width and the fifth 
ventral segment with coarse punctures except on the apex. 
‘This species is named for Mr. F. C. Pratt through whose 
efforts the large amount of material from the type-locality of 
this species was secured. 
Ceelioxys rufitarsis var. rhois Ckll. 
This differs from the typical form only in having the tegule 
black and the veins of the wings darker than normal, and 
would run out in the table where the typical form does. 
