178 Bulletin Wisconsin Natural History Society. [Vol. 8, No. 4. 



subcostal and cubital spaces of the fore wings and the subcostal 

 spaces of the hind wings. Venation : 



Fore Wings. Left Wing. Right Wing. 



Costal antenodals 9 8 



Subcostal antenodals 8 8 



Postnodals • 5 6 



Triangle 3-celled 2-celled 



Post-triangular series 3-2-3-rows 3-2-3-rows 



Hind Wings. 



Costal antenodals 6 5 



Subcostal antenodals 6 5 



Postnodals 7 6 



Post-triangular series broken, with batches of very minute cells. 



Abdomen (excl. appendages) 42 mm., appendages 4 mm., vulvar 

 lamina 3 mm. Hind wings 37 mm., stigma 2.5 mm., hind femora 8 mm. 



Described from one female from White Mills., Pa., captured 

 in August (Brooklyn). Allotype in Brooklyn Institute. 



The species is close to tcucbrosa, filosa and linearis. From the 



latter it is distinguished by the markings of the abdomen. From 



tcucbrosa it can be separated by the longer appendages and the 



form of the vulvar lamina. These are much like those figured by 



Martin for S. tilosa (Cat. Coll. Selys, 9, p. 22, 1908; t. f. 20). Of 



Martin's figure, however, it must be said that it does not agree 



with the descriptions of the vulvars "forming a recurved trough 



reaching the tip of the abdomen," as attested by Needham's figure 



on page 500 of the Adirondack report (1901). If such be the 



case, there is the probability of Martin's specimen being a female 



of S. prorocaiis: I have seen a male of S. filosa from Lake City, 



Fla. 



LIBELLULIN^E. 



Libellula auripennis Burmeister. One male, Florida (Brooklyn). 



This specimen has the wings more intensely amber-colored 

 than any that I have ever seen. This coloration is especially 

 strong in the apical half of the wings. Stigma on all wings 

 bright red. 

 Libellula flavida Eambur. One male, Lakehurst, N. J., June 



(Brooklyn). 

 Libellula saturata Uhler. Los Angeles Co... Calif., August; eight 



males, one female. 



