Calvert: Odonata of the Neotropical Region. 121 



II. Total area of dark colors on abdominal segments 3-6 and thoracic dorsum less 

 than the pale areas on the same parts. 

 I. Dorsum of abd. seg. 7 chiefly black, rear of head chiefly black, postbasal 

 black streaks on 3-6, 8 and 9 blue, with an inferior black stripe on 

 each side. 

 K. Inferior appendages longer than high at apex, deeply excised at tip. 

 L. Black mid-dorsal thoracic stripe wider than the carina. 

 Pale colors blue. 



tinctip nnis and chapadcc ( for their differences see under the 

 latter, posted). 



Pale colors violaceous botacudo. 



LL. (not represented). 

 KK. Inferior appendages higher at apex than long. 



Black mid-dorsal thoracic stripe wider than the carina tupi. 



Black mid-dorsal thoracic stripe reduced to a line upon the carina only. 



subapicalis. 

 2., 3., 4. (not represented). 



Females. 



\ I. Dorsum of abdominal segments 3-6 mostly black. 



A. Dorsum of abd. segs. 8 and 9 pale with black markings. 



B. These markings consisting of two stripes occupying only the basal half 

 (more or less) of 8 and 9. 

 C. (not represented). 



CC. These stripes more or less confluent with each other. 

 CC. I. Antenodal cells on the front wing 4. 

 D. (not represented). 

 DD. Mesepisternal tubercles absent. 



DD. I. Antenodal cells on the hind wing 4. 



Pale antehumeral stripe one-half as wide (or less) 

 as the black mid-dorsal, no mid-dorsal blue stripe 



on abd. segs. 4-6, rear of head black sordida. 



Pale antehumeral stripe three-fourths as wide (or 

 more) as the black mid-dorsal blue stripe 

 present on the greater part of the length of 4-5 



or 6, rear of head chiefly pale .fosteri. 



DD 2. Antenodal cells on the hind wing 3. 



E. A pale mid-dorsal stripe on abd. segs. 3-5. 

 Mesepimeral part of the humeral stripe black. 

 Abd. seg. 10 black on dorsum with a pair 

 of pale spots, mesepimeral branch of the 

 black humeral stripe reaching to the 



upper margin of the sclerite oculata. 



Abd. seg. 10 blue, mesepimeral branch of 

 the black humeral stripe not reaching to 

 the upper margin of the sclerite. 



hasemani. 



