82 Annals of the Carnegie Museum. 



suture, thorax with slight metallic-green or metallic-copper reflections, 

 anterior abdominal segments with slight metallic-violet or metallic- 

 green reflections ; labrum in a younger male with a pale spot on each 

 side. 



Superior abdominal appendages longer than 10, as long as 9, forci- 

 pate, black outer margin with 4-5 spines in the distal half, inner mar- 

 gin widening gradually from the first to the second third of the 

 appendage length ; beyond the point of greatest length the upper sur- 

 face bears an oblique row of small denticles and distal to the row a 

 transverse ridge, the inner (mesal) end of which forms a slight projec- 

 tion on the inner edge of the appendage at three-fourths length when 

 seen from above, apex obtuse, rounded. In profile the lower margin 

 is distinctly convex in the third and fourth fifths, or middle third, of 

 the appendage length, corresponding to the widening of the inner 

 margin as viewed from above. 



Inferior appendages five- to six-tenths as long as the superiors, 

 black ; in profile view curved slightly upward, tapering from base to 

 apex ; in ventral view, as distant from each other as the superiors, 

 only slightly curved toward each other. 



Legs black. 



Wings dark brown for their entire width from base to nodus, un- 

 colored beyond, the outer edge of the brown extending in a usually 

 somewhat zig-zag line to the hind margin of the wing in such a way that 

 the hind edge of the brown is a little shorter (9-10 mm. ) than its front 

 edge (10-11 mm.). Apex of hind wing edged with brown from the 

 second to the sixth cell before the termination of Rj (= median vein 

 of de Selys) to the termination of the second of the three longer sup- 

 plementary sectors below M x (= principal sector of de Selys), or 2-3 

 cells posterior or anterior thereto. No trace of a pterostigma. Front 

 wings with two or three rows of cells in the greater part of the anal area 

 (= proximal part of the postcostal space of de Selys) to the level of the 

 distal end of the quadrilateral, when there are two rows, then near the 

 distal end of that area are three rows or three cells here and there ; three 

 or four rows in a great (middle) part of second cubital area 4 ( = distal 

 part of the postcostal space of de Selys): 3-5 cross-veins in the basal 

 median area (= median space of de Selys, 1896), 4-7 cross-veins in 

 the quadrilateral, 17-19 ante-, 29-35 postnodals. Hind wings with 



4 Mr. Williamson has denoted this area also by the letters AN AR, anal area, in 

 his figure I (page 168, Proc. U. S. Nat. Mus. , xxviii) showing the nomenclature of 

 he venation of a Calopterygine wing. 



