266 CALIFORNIA ACADEMY OF SCIENCES. 



Sphex thom^ Fabr. Tepic and San Jose del Cabo. 

 Two females. 



Ammophila micans Cam. One $ . Tepic. 



Ammopiiila zanthoptera Cam. Tepic. One female. 

 Seems to be close to mediata Cress. 



Ammophila femur-rubra Fox. San Jose del Cabo. 

 One specimen. 



Ammophila pictipennis Walsh. Three females. San 

 Jose del Cabo. These differ only from more northern 

 specimens in their smaller size. 



Ammophila Yarrowi Cress. Eight specimens. San 

 Jose del Cabo. 



Cerceris graphica Sm. 



I am not acquainted with the female of this species, the 

 sex described by Smith. A 5 specimen from Tepic agrees 

 so well with Smith's description that I refer it to graphica 

 without hesitancy. The flagellum is reddish beneath to 

 the apex and above, at base the scape being entirely of 

 that color; clypeus entirely, sides of face broadly, yel- 

 low; other markings on head and those on thorax as de- 

 scribed in the female; as are also those on the abdomen, 

 except that the sixth segment is banded and the pygidium 

 is more or less yellow; inclosure at base of middle seg- 

 ment coarsely punctured basally, polished at apex. 



The reddish legs with yellow tarsi and the peculiar 

 combination of reddish, yellow and black of abdomen are 

 characteristic of this species. 



Sphecius convallis Patt. San Jose del Cabo. Two 

 specimens. 



Stizus Godmani Cam. Two specimens, ? $> . San 

 Jose del Cabo. 



