158 Annals of the Carnegie Museum. 



obscure brownish, 8-10 obscure, possibly pale blue or green in life; 

 superior appendages very slightly longer than 10, 1 mm. long, dark 

 brown ; in dorsal view each is about three times as long as wide at 

 base, inclined slightly toward each other, more especially in the distal 

 two-fifths, apex rounded, obtuse ; in profile view each superior ap- 

 pendage tapers somewhat from base to the obtuse apex, which bears a 

 rather thick tuft of pale brownish-yellow hairs ; at mid-length is an infe- 

 rior process divided into two branches both directed inward (mesad) and 

 downward (ventrad), the anterior branch also somewhat forward, the 

 posterior branch also hindward (caudad), the anterior branch shorter, 

 slenderer, subcylindrical, the posterior lamellate and expanded at 

 its tip; 7 spines ("cils") on the outer row of the third tibia. 



If the appendages of this insect are the same as of Selys' porrectum, 

 I think it likely that only one species is concerned in spite of the very 

 considerable color differences, for these latter are not greater than are 

 to be found in that protean form, Telagrion fulvelhim. If our present 

 male proves to be distinct, the name perlongum would be appropriate. 

 Like porrectu?n it is tl roussatre clair . . . a la place ou seraient les 

 taches postoculaires non delimitees en arriere," and it is difficult to 

 see why de Selys did not refer porrectum to Telagrion instead of to 

 Leptagrion. 



65. Leptagrion macrurum Burmeister. 



Habitat: — Brazil, Rio de Janeiro, by H. H. Smith, November, 1 

 S and part of one other, December, 1 cT, parts of 2 $ . Carnegie 

 Museum, Pittsburgh. Rio de Janeiro, by Reinhart, 1 young c? ; 

 Lagoa Santa [in Brazil?], Lund, 1 ? ; Museum of Comparative Zool- 

 ogy, Cambridge, Mass. 



There are nine spines on the outer row of the third tibia. Young 

 c?$ have the head pale above, including the area occupied by the pale 

 postocular spots of other genera, a black stripe on the occiput, no mid- 

 dorsal thoracic black. 



66. Leptagrion elongatum Selys. 

 Habitat : — Brazil, Rio de Janeiro, in November, by H. H. Smith, 

 1 d\ 1 $ and part of one other. Carnegie Museum, Pittsburgh. 



67. Enallagma civile Hagen. 



Enallagma civile Calvert, Biol. Centr.-Amer. Neurop., pp. no, 380. 1902, 1907. 

 Habitat: — Jamaica, Hope Gardens, May 29, 1904, by W. R., 

 Maxon, 8 d\ U. S. National Museum. 



