Calvert : Odonata of the Neotropical Region. 105 



pale bluish-green ; labium cream -colored ; rear of the head mostly- 

 pale, but somewhat discolored. 



Anterior prothoracic lobe and sides of the median lobe bluish ; 

 median lobe reddish dorsally with some dark central markings. 



Thoracic dorsum faded, probably bluish in life ; on each side of the 

 mid-dorsal carina is a straight, dark, bronze-green stripe about .3 mm. 

 wide at mid-height, narrower at its lower or anterior end, which attains 

 the anterior mesothoracic margin, its upper end not quite reaching the 

 antealar sinus. Each of these stripes is parallel to the mid-dorsal 

 carina, and distant from it at mid-height by about half its own width. 

 Sides of the thorax and pectus pale bluish ; along the posterior margin 

 of the mesepimeron is a black, slightly wavy stripe, slightly wider than 

 the bronze-green mesepisternal stripe above described, not reaching 

 to the wing-base above nor to the mesinfraepisternum below. Lower 

 end of the mesepimeron and corresponding part of mesinfraepisternum 

 brownish, becoming black in part on the last-named sclerite. The 

 following marks on the pectus are black : the mid-ventral metasternal 

 suture, an oblique anterior metepimeral line, which unites, or almost 

 unites, anteriorly with the mid-ventral suture, and a metasternal stripe 

 on each side, parallel and close to the lateral carina, unconnected with, 

 and not reaching as far forward as, the preceding oblique line. 



Abdominal segment 1 pale green ; dorsum of 2-8 blackish-bronze, 

 which extends down on the sides in the posterior half of 2, posterior 

 sixth of 3-5, or more of 6-8 ; remainder of the sides of 2-8, a narrow, 

 transverse, basal, mid-dorsally interrupted ring on 3-5 or 6, a mid- 

 dorsal longitudinal line or stripe on 2, pale green ; 9 and 10 obscure, 

 pruinose. 



Superior abdominal appendages longer than 10, not quite as long 

 as 9, brown at base, darker in their remaining four-fifths ; in dorsal 

 view curved toward each other in the apical third ; on the inner lower 

 margin of each, in the second fifth of the appendage length is a 

 rounded tooth, or convex projection, followed by a very short, nearly 

 straight edge, succeeded by a second convexity, shorter and less pro- 

 nounced than the first, and bearing about four acute denticulations and 

 terminating at nearly two-thirds of the appendage length ; in profile 

 the two convexities above described are also visible while the apex is 

 bent downward so strongly as to form almost a right angle with the 

 superior margin, the extreme inferior tip being moderately acute. 

 Inferior appendages lost. 



