Hagen.] 358 [March 25, 



orbicular, hollowed inside, darker on the border, which is notched in 

 the middle ; bands of the second segment enlarged in the apical half 

 and rather excavated ; feet short, black, anterior femora beneath 

 bright yellow, the others brownish ; extreme base of tibiae yellow ; 

 trochanter rufous ; wings hyaline, extreme base dark brown, forming 

 a short brown band to the first antecubital vein in the second space; 

 veins blackish ; costa yellow to the pterostigma, which is large, 

 oblong, blackish rufous, covering five areolets; membranule rudi- 

 mentary, whitish; anal angle prominent; fifteen to sixteen ante- 

 cubitals, nine postcubitals in the anterior wings; twelve antecubitals, 

 ten postcubitals in the hind wings ; triangle in anterior wings with 

 three transversals, united in the middle, in hind wings with one or 

 two parallel to the interior side ; interior triangles with one trans- 

 versal vein ; two series of discoidals, commencing with three. 



Length without app. 47 mill.; abdomen 34 mill.; super, append. 

 2^ mill. ; pterostigma 4 mill. ; alar exp. G8 mill. 



Abbot's figure has the body 53 mill, long, all yellow, very bright ; 

 otherwise it agrees very well, even in the details of neuration. 



The differences of De Selys' P. borealis are as follows: the basal 

 dark band on the wings is a little shorter; twelve postcubitals of the 

 anterior wings ; the abdomen long, 41 mill., just as in Abbot's figure ; 

 the segments eight to ten, with yellow spots; feet not so dark. A 

 diagram of the appendages, kindly sent by Mr. M'Lachlan, does not 

 show the two superior small teeth before the tip of the inferior ap- 

 pendage ; otherwise they are not different. 



Female according to Abbot's figure similar to the male in colors 

 and shape ; the abdomen not so slender in the middle, the yellow 

 fascia? on segments two to seven larger, the tips broad, reaching the 

 apical margin ; appendages yellow. 



Hab. Georgia, one male and Abbot's drawings. 



14. Gomphus pallidus. Male, No. 54 ; female, No. 55, 

 LeConte. 



I possess a type specimen of the female from Abbot, agreeing with 

 the figure, and I have no doubt that the male belongs to it, as I 

 compared one long ago sent by Abbot to Escher Zollikofer. Never- 

 theless this male I believe to be identical with one in my collection 

 from New Orleans, which is the type of my G. pilipes. I possess, 

 even now, no more material to decide the question. This species 

 seems to be rare. 



