59 



Sphe.v 7/iolaceipciuiis Lepel. ; Rohwer, (let. October 6. 



Found in a very sandy, abandoned field, in growth of Cenchrus 

 (sand-bur). The wasp was observed closing its burrow in the sand. 

 It faced away from the opening, throwing the sand into it with the 

 hind pair of legs, then faced about and threw the sand forward, al- 

 ternating these movements several times. 



Prioiioiy.v bifoi'Colatus Tasch. October 5, 7. 



On aster along roadsides, and at the Devil's Hole (Hart). The 

 species prol)ably burrows in the sand. It was (juite common. 



Prio)ioiiyx atratus St. Farg. October 7. 



Found on aster w-ith the preceding species. One specimen. 



Ccrccris ciypcata Dahl ; Robertson, det. October 5. 



One specimen from aster along roadside. Hart took two species 

 of this genus at the Devil's Hole — C. fumipennis Say, and C. vena- 

 tor Cress. A member of the family Philaiithidac, w'hich burrow into 

 the ground and store their cells with beetles or with small digger-bees. 



TacJiytcs cloiigafiis Cress.; Robertson, det. July 19. 



One specimen taken flying about the Cassia growth in a blowout. 

 A member of the family Larridae, which burrow in sand. Grass- 

 hoppers and crickets are used to provision the nests. 



Tachytcs iiiojidibularis Patton ; Robertson, det. July 3. 



Three specimens taken in the basin of a blowout on Acerates, the 

 green milkweed. Two were in copula. Hart took TacJiytcs obscitrits 

 at the Devil's Hole in August. A characteristic basin species, ob- 

 served quite frequently on Acerates, and in basins about the inner 

 margin of the Cassia growth. A species of Tacliytes was seen in 

 abundance on the beach sand-plain at Matanzas Lake, July 11. 



Halictus pilosiis Smith ; Robertson, det. October 7. 



On aster along roadside. One specimen. One of the most com- 

 mon and widel}' distri])uted green forms. 



Aiigochlora hunieralis Patton. June 28, July 8, October 5. 



In flowers of wild rose and aster along roadside. Hart records 

 the species from the Devil's Hole. One of the Halictidac, which are 

 solitary bees. They burrow in the ground. 



Agapostcnwn splendens Lep. October 7. 



On aster flowers along roadsides. Quite abundant, both males 

 and females. Hart records the species from the Devil's Neck and 

 the Devil's Hole. 



