pepsinae: tribe macromerini 153 



Specimens (58 cT, 1499): From Alabama (Coosa River in Chilton 

 County) ; Arkansas (Imboden) ; District of Columbia (Washington) ; 

 Florida (Hillsboro County, Lake County, Orange County, Osceola 

 County, Pasco County, Polk County, Seminole County, and Winter 

 Park) ; Georgia (Atlanta and Billys Island in the Okefenokee Swamp) ; 

 Illinois (Bloomington) ; Iowa (Sioux City) ; Kansas (Baldmn, Douglas 

 County, Manhattan, and Onaga County) ; Maryland (Bo^ae, Cabin 

 John, Cambridge, Glen Echo, Plummers Island, and Takoma Park) ; 

 Missouri (St, Louis); New Jersey (Moorestown and Riverton); 

 North Carolina (Crabtree Meadows at 3,600 ft. in Yancey County, 

 Elizabeth City, Long Beach, Mount Mitchell, Raleigh, Southern 

 Pines, and Statesville) ; Ohio (Bridgeport and Put in Bay); Ontario 

 (Pelee Island) ; Pennsylvania (Marianna, Marsh Run in York County, 

 Philadelphia, and Valley Forge); South Carolina (Columbia and 

 McClellanville) ; Tennessee (Marshall) ; Texas (College Station, 

 Commerce, Dallas, Eastland County, Hopkins County, Liberty Hill, 

 Paris, and Victoria); and Virginia (Arlington, Chain Bridge, Dead 

 Run in Fau-fax County, Dunn Loring, Falls Church, Lake Drummond, 

 Little Bald Knob in Augusta County, Mount Vernon, and Rosslyn), 



The specimens at hand from Put in Bay, Ohio and Pelee Island, 

 Ontario, and one from Carver County, Minn, are intermediate to the 

 subspecies variitarsatus. 



Dates of capture are rather evenly distributed from late spring to 

 midfall, unusually early and late dates being Apr. 4 at Commerce, 

 Tex.; Apr. 11 at Marianna, Pa.; Apr. 24 at Plummers Island, Md.; 

 Apr. 30 at Raleigh, N. C; May 2 at Atlanta, Ga.; Sept. 27 at Onaga, 

 Kans.; Oct. 20 at Washington, D. C; Nov. 13 in Pasco County, Fla.; 

 and Dec. 23 in Orange County, Fla. This species is commonest in 

 moist woods. 



Rearing records are as follows: Two males on Apr. 4, 1939, from a 

 mud nest taken at Commerce, Tex.; a male and two females on 

 July 14, 1946, from a mud nest taken at Victoria, Tex.; two males 

 and a female on May 21 and 25, 1917, from a nest in a vial taken at 

 Plummers Island, Md., by H. L. Viereck; a male on Aug. 20, 1945, 

 from an old Trypoxylon politum nest taken in Maryland by Morton 

 Vogel; and some specimens in the U. S. National Museum from an 

 abandoned Polistes comb collected by J. C. Bridwell. Rau records 

 it using various holes and crevices, especially old nests of Sceliphron 

 caementarium, which serve both as sources of building material and 

 as crannies for its own mud cells. Females are very frequently found 

 in houses, probably entering in search of nesting sites. Rau records 

 Phidippus sp. and Pisaurina undata as prey, and Chrysis pattoni as 

 a social parasite. 



