Calvert : Odonata of the Neotropical Region. 227 

 142. Ephidatia longipes Hagen. 



Ephidatia longipes Calvert, Biol. Centr.-Amer. Neurop. p. 216. 1906. 



Habitat: — Brazil, Sete Lagoas in Minas Geraes, May 4, 1908, by 

 J. D. Haseman, 1 ?. Carnegie Museum, Pittsburgh. 



143. Ephidatia longipes cubensis Calvert. 



Ephidatia longipes cubensis Calvert, /. c. p. 216. 1 906. 



Habitat : — Bahamas, New Providence Is., vicinity of Nassau, June 

 28-July 1, 1904, by Allen, Barbour, and Bryant, 1 $. Museum of 

 Comparative Zoology, Cambridge, Mass. 



Genus Uracis Rambur. 

 Calvert, Biol. Centr.-Amer. Neurop. pp. 199, 217. 1905, 1906. 



The species of this genus known to me may be distinguished as 

 follows : 



A. Hind wing with the discoidal triangle free, four cubito-anal cross-veins, one post- 

 triangular row increasing to two at, or a little distal to, the level of separa- 

 tion of Mj+2 ( = principal sector of de Selys) from M 3 ( = median sector) ; 

 front wing with two cubito-anal cross-veins, three posttriangular cells 

 followed by two rows increasing to three rows between the levels of sepa- 

 ration of M 1+2 from the bridge and of the nodus ; no supra-triangular 

 cross-veins on any wing. 



B. Hind wing with two rows of cells between A 3 and the hind margin at the level 



of the hind angle of the triangle ; wings uncolored ; size smaller : abd. 



<J 23, hind wing $ 27, 9? riemensii. 



BB. Hind wings with three rows of cells between A 3 and the hind margin at 

 the level of the hind angle of the triangle ; wings (of the 9 at least) 

 brown at tips into the level of the distal end of stigma or nearly so, 

 ovipositor extremely long (3.7 mm. from the hind ventral margin of 8), 

 projecting 3 mm. beyond the hind end of the abdomen ; size larger : 

 abd. O (excl. ovip.) 23.5-25.5, hind wing 9 33-35, J? 



ovipositrix. 

 AA. Hind wing with the discoidal triangle cross-veined. 



C. Hind wing with one posttriangular row, two cells between A 3 and the anal 



margin ; front wings with not more than two posttriangular rows to 

 the level of the nodus ; a supratriangular cross-vein and 4-6 cubito- 

 anal cross-veins present on all wings. 

 D. Wings uncolored ; abd. $ 26, 9 2 4~ 2 5 '■> hind wing $ 3 T -5, 9 2 7 5~ 



30 mm qvata. 



DD. Wings with a transverse brown band from nodus to proximal end of 



stigma; abd. $ 25, hind wing $ 30mm. 9 ? infumata. 



CC. Hind wing with two posttriangular rows, 3-4 cells between A 3 and the anal 



