191 [Scuddor. 



Tramea insnlaris Hagen. 



I have taken but a single female of this species, which, though 

 Hagen refers to no such distinction, differs from four males taken by 

 me In having the front above of the same color as the rest of the face, 

 and the vertex a darker tinge of the same color instead of being brassy 

 purple ; also in that the fuscous band at the base of the posterior wings 

 is narrower and reaches neither the posterior border, nor the anal an^le 

 toward which it turns. 



This ? when ahve had the front and vertex light brownish yellow, 

 the labrum, except the black apex, as well as the other mouth-parts, 

 reddish-brown ; thorax very pale olivaceous-green ; spots on the last 

 three segments of abdomen black, the dorsum of the segment anterior 

 to them dull orange ; the other segments above reddish-orange ; sides 

 of abdomen dull olivaceous-green, beneath plumbeous. 



I do not think this can be the ? of T. ahdominalis ; the pterostigma 

 is fulvous ; the specimens were all taken at the same time, and the 

 6 3 are unmistakably T. insularis. Selys seems to have had speci- 

 mens of both before him in preparing his description. 



I do not find that Hagen makes any reference in his Synopsis to the 

 species referred to by Selys under the name of L. cophjsa Kollar 

 MS., which belongs to this group, has been found in Cuba, and appeai-s 

 never to have been described : is it this species ? 



Antecubltals, 11 ; postcubitals, 8-9. Length, 1.84 inches; alar ex- 

 panse, 3.32 inches; pterostigma, .11 inch. 



Libellula auripennis Burm. 



I have several specimens from the Isle of Pines which agree with 

 Hagen's description of this species ; the wings, however, can hardly be 

 said to have their anterior margin flavescent, £is the flavescence is 

 ahnost entirely confined to the two principal veins at this point, 

 slightly suffusing the membrane at the nodus and towards the base ; 

 the slight Infuscation of the apex is a Uttle flavescent also. 



During life the natural colors of the teneral stage ( 5 and ? ) are as 

 follows : The face is pale brownish-yellow , dorsum of thorax yellowish- 

 brown (I made no note of the median sulcus) ; pleura the same as the 

 face with a tinge of green, the abbreviated stripe yellowish-brown ; 

 abdomen dusky lemon-yellow, the median stripe black posteriorly, 

 brown anteriorly ; beneath the same as the pleura. 



Antecubltals, 15-17 ; postcubitals, 11-13. Alar expanse, 2.92-3.10 

 inches. 5 5 , 1 ? . It was one of the most common species 



