ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PAEKER 173 



two femajes on which Handlirsch based his description of the species 

 is likewise indefinite. 



BICYRTES QUADRIFASCIATA (Say) 



Figures 15, 44 



MonedAila quadrifasciata Say, Exp. St. Peters River, vol. 2, 1824, p. 336. 

 Brmhidula qimdrifasdata Handlirsch, Sitz. Akad. Wissenscli. Wien, Malh.- 

 Nat. CI., vol. 98, 1889, p. 492.— Dalla Torre, Cat. Hym., vol. 8, 1897, p. 49S. 

 Bcmbidula variegata Fox, Proc, Acad. Nat. Sci. Pliila., 1895, p. 353. 

 Blciirtes quadrifasciata Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 65. 



This is one of the largest and most easily recognized species in 

 the United States, over the eastern part of which it is widely dis- 

 tributed. It is replaced in Mexico, Central and South America by 

 variegata. from which the most elaborately maculated forms of this 

 species can with difficulty be distinguished. The males of the two 

 species can usually be distinguished by the fact that quadHfasciata 

 has the scutum black or with weakly developed discal marks and has 

 the fascia on the sixth tergite widely separated or reduced to lateral 

 spots, whereas variegata has well-developed discal lines on the scutum 

 and has the fascia on the sixth tergite broad and no more widely 

 interrupted than are the fasciae on the other tergites. In case of 

 doubt the genitalia must be considered. In the case of the female 

 the sixth tergite of quadrifasciata is black; of variegata^ riiacuiated. 



SPEJCIMENS EXAMINED 



Alabama: (C. F. Baker). 



Connecticut: Sheffield Island (August 16, 1901, J. L. Zabriskie). 



Florida: Crescent City (April 24, 1908, Van Duzee) ; Enterprise (May 1). 



Georgia: Okefenokee Swamp, Billy's Island (June 12, 1912); Stone Mountain 



(August 3, 1913). 

 Illinois. 

 Indiana. 

 Iowa : Ames. 



Maryland: Great Falls (July 17, 1915, J. B. Parker). 

 Massachusetts: Amherst (July 28, 1905). 

 Netw Mexico: Albuquerque (Ashmead). 

 New York: Long Island (Ashmead). 



Ohio: Cedar Point, Sandusky (July 23, 1913, J. B. Parker). 

 Pennsylvania: Philadelphia (Skinner). 

 South Carolina: Calhoun (E. S. G. Titus). 

 Texas: Columbus; Mineola (June 26, 1906, E. C. Bishopp) ; Rosser (June 7, 



1905, F. C. Bishopp) ; San Antonia (Ashmead). 

 Virginia: Norfolk (July 15, 1910, F. A. Johnston). 

 Wisconsin: N. Hudson, St. Croix County (July 7, 1910); Genoa (July 12, 



1911). 



The species has been reported also from Kansas and New Jersey. 



