136 Kansas Academy of Science. 



Family Oxybelid^. 

 Oxybelus cornutus Say. Oak creek, 50 specimens. 



emarginatus Say. Oak creek, 3 specimens; Bill Williams fork, 1. 



tetus Say. Oak creek, 3 specimens. 



4-notatus Say. Oak creek, 50 specimens. 

 Notoglossa emarginata Say. Oak creek and Tucson, 2 specimens each. 



Family Andrenid^e. 

 Agapostemon melliventris Cress. Congress Junction, 6 specimens. 



nigricornis Fab. Congress Junction, 2 specimens; Tucson, 1. 

 tricolor St. Farg. Oak creek, numerous specimens, 

 texanus Cress. Bill Williams fork. Oak creek, Congress 

 Junction, and Tucson, numerous specimens. 



Family Halictid^. 

 Proteraner ranunculi Robt. Oak creek, 1 specimen. 

 Sphecodes, four undetermined species. Oak creek, three species; Congress 



Junction, one species. 

 Halictus ligatus Say. Oak creek, 10 specimens; Tucson, 4. 

 Colletes americana Cress. Humphrey's Peak, several specimens; Tucson 

 and Baboquivari, 1 each, 

 consors Cress. Oak creek, 1 specimen; Baboquivari, 3; Tucson, 25. 



Family Prosopid^. 

 Prosopis affinis Sm. Oak creek, several specimens, 

 ruidosensis Ckll. Oak creek, 1 specimen. 



ten new and undetermined species. Oak creek and Humphrey's 

 Peak, at base. 



Family NOMIID^. 

 Nomia foxii D. T. Oak creek, 2 specimens; Tucson, many specimens. 



nevadensis Cress. San Bernardino ranch and Bill Williams fork, 

 several specimens. 



Family Panurgid^. 

 Rhophitoides fimbriatus Cress. Humphrey's Peak, 1 specimen. 

 Halictoides oryx Vier. Oak creek, 1 specimen. 

 Pseudopanurgus rugosus Robt. Oak creek, 1 specimen. 

 Panurginus innuptus Ckll. Oak creek, 2 specimens, 

 perlsevis Ckll. Oak creek, 1 specimen, 

 four new and undetermined species. 

 Perdita— seven new and undetermined species. Bill Williams fork and Oak 

 creek. 



Family Anthophoridje. 

 Centris atripes Mocsary. San Bernardino ranch, several specimens; Tuc- 

 son and Baboquivari, 4 each, 

 morsei marginata- Fox. San Bernardino ranch, 1 specimen, 

 rhodopus Ckll. Bill Williams fork, .many specimens; Tucson and 

 Baboquivari, several each. 

 Anthophora montana Cress. Oak creek, 1 specimen, 

 smithii Cress. Tucson, 2 specimens. 



urbana Cress. Humphrey's Peak and Oak creek, several speci- 

 mens each; Tucson, 2. 



