Biological Papers. 131 



Family Myzinid^. 

 Plesia interrupta Say. Oak creek, very numerous specimens. 



frontalis Cresson. Congress Junction, Bill Williams fork, and Babo- 



quivari, numerous specimens, 

 hamata Say. Oak creek, numerous specimens. 



Family Eumenid-e. 

 Eumenes bollii Cress. Oak creek, 5 specimens; Congress Junction, San 

 Bernardino ranch, Tucson, and Baboquivari, 1 each. 



coloradensis Cress. Oak creek, many specimens. 

 Odynerus annulatus Say. Congress Junction, Oak creek, and Bill Williams 

 fork, numerous specimens; San Bernardino ranch and Babo- 

 quivari, 2 each; Flagstaff, 1; Tucson, many specimens, in some 

 cases the males showing the female pupa of the Coleopteron, 

 Xenos peckii Kirby, protruding from a ventral segment. 



anormis Say. Oak creek, 6 specimens; Tucson, 18. 



arizonensis Cam. Congress Junction, 1 specimen. 



behrensii Cress. Humphrey's Peak, 3 specimens. 



birenimaculatus Sauss. Humphrey's Peak, 2 specimens. 



bustamenti Sauss. Oak creek, 3 specimens. 



capra Sauss. Oak creek, 30 specimens. 



hidalgi Sauss. Oak creek and San Bernardino ranch, 1 specimen 

 each. 



iturbidi Sauss. Oak creek, 1 specimen; Baboquivari, 3. 



pratensis Sauss. Congress Junction, 4 specimens; Bill Williams 

 fork and San Bernardino ranch, 2 each. 



reflexus Cress. Oak creek, 1 specimen. 



taos Cress. Congress Junction and Oak creek, 1 specimen each; 

 Tucson, 8. 



texensis Sauss. Congress Junction, 2 specimens. 



tigris Sauss. Humphrey's Peak and Oak creek, several specimens 

 from each locality. 



tuberculiceps Sauss. Humphrey's Peak, 2 specimens; Oak creek, 

 20 specimens. 



toltecus Sauss. Congress Junction and Oak creek, numerous 

 specimens; Tucson, 8; Baboquivari, 2. 

 Pterochilus 5-fasciatus Say. San Bernardino ranch, 1 specimen. 



Family Vespid^. 

 'olybia flavitarsus Sauss. Oak creek and Baboquivari, many specimens 

 y each. 



'^ Polistes aurifer Sauss. Oak creek, 3 specimens; Baboquivari, several speci- 

 mens. 

 ' flavus Cress. Congress Junction, Bill Williams fork, and Babo- 

 quivari, numerous specimens at each locality, 

 /navajoe Cress. Congress Junction, 1 specimen; Oak creek and 

 Baboquivari, many specimens each, 

 texanus Cress. Bill Williams fork, 50 specimens; Baboquivari, 

 numerous specimens. 

 ^Vespa diabolica Sauss. Oak creek, 3 specimens. 



y occidentalis Cress. Oak creek, many specimens. 



4. 



