NEUROl'TEEA— ODONATA— AGRIONINA. 1 33 



slenderer than in that species ; the quadrilateral is of about equal lengtn 

 and breadth, its basal only a little more than half the length of its apical 

 margin and the vein forming its lower margin bent at a much greater 

 angle with the inferior vein of the triangle than in the preceding species ; 

 the nodus is placed slightly beyond one third the distance from the arculus 

 to the pterostigma, while in the preceding species it is placed, if anything, 

 at less than one-third that distance ; the wing is hyaline, excepting the 

 dusky pterostigma, which is about three times as long as broad, surmounts 

 four cellules, and is bordered by thickened black veins ; there are nineteen 

 postcubitals. 



The bod}^ is slender, the legs slender, but not very long, armed with 

 long hairs, and the abdomen, which is considerably longer than the front 

 wing, is viewed partly from the side and partly from above ; the superior 

 male appendages are shorter than the tenth segment, quadrate, apparently 

 of equal length and breadth, with a slightly projecting tooth at the inner 

 tip directed inwards. 



Length of entire body, 49""' ; head, 3°"° ; thorax, 8.5°"" ; fore femora, 

 4.25°"" ; middle femora, 5°'°' ; hind femora, 6"™ ; abdomen, 36°'"' ; second 

 joint, 3.5"'"' ; third, 5'""' ; fourth to sixth, each 6"'"' ; seventh, 4.5"'™ ; eighth, 

 2.5"'"'; ninth, 1.5°""; tenth, 1.1"'°'; appendages, 0.6""" ; breadth of heVid, 

 4.5™™ ; second to fifth abdominal segments (side view), 2.75™™ ; sixth and 

 seventh abdominal segments (top view), 1.75™™ ; eighth, 3"™ ; ninth, 2'""' ; 

 tenth, 1.75™™ ; appendages, 0.6™™ ; length of wing, 36.5™" ; of part beyond 

 peduncle, 34..5™™ ; breadth, 8.6 ; distance from arculus to nodus, D™™ ; from 

 nodus to tip of wing, 22.75™™; fi'om nodus to inner angle of pterostigma, 

 16.75"'™; length of pterostigma, 3™™. 



Named for the world-known American entomologist. Dr. A. S. Pack- 

 ard, of Brown University. 



Green River. Three specimens. Dr. A. S. Packard, Nos. 146, 147, 

 252 and 253. 



2. PODAGRION de Selys. 



Tropical South America claims the half dozen known living species 

 of this genus, most of which have been found in Colombia and Venezuela. 

 The single species we refer here is somewhat imperfect but apparently be- 

 longs here, and can certainly not be far removed from it, for it agrees with 

 it in the character of the pterostigma and the supplementary sectors. Ex- 

 cept this no fossil species have been found. 



