The Odovaia or Drcujfmflies of SovUi Afri 



323 



of autenuae backward ; very narrow ciiueiforni blue postocular spots 

 united by a narrow blue line on occipital margin. Prothorax black, 

 sides narrowly lilue, posterior lolje very narrowly bordered with blue. 



Thoracic dorsum black ; rather broad, blue ante-humeral stripes, 

 nearer the humeral than the median snture, about as broad as the 

 median black band of same side. Humeral black e.\tending laterally 

 to be divided about equally by the humeral suture. Sides otherwise 

 light blue ; a small black dot in dorsal end of second lateral suture. 

 Ventral side whitish. Legs greyish blue ; external side of femora 

 broadly, of tibiae narrowly blacl;. 



Abdomen almost pure light ))lue, with a very slight greenish shade, 

 marked with black ; quadrangular spot over the entire length of 

 segment 1 ; segment 2 with a complete broad dorsal band, slightly 



-Enallagma nigridorsnm, S . Loren<;o Marques. Appendages, 

 ricrht side and dorsal view. 



contracted towards the middle, contracted at the end, where it joins a 

 narrow terminal black ring ; 3-6 broad dorsal band very nai'rowly 

 interrupted at base and enlarged at end of each segment ; -7 black 

 except narrow lateral strijjes and a very narrow basal ring ; 8 blue, a 

 black spot on anterior half of dorsum ; 9 entirely blue ; 10 blue with 

 dorsal black band. Appendages (Text-fig. 35) superior black, inferior 

 black in lateral, ochreous in median half. 



Pterostigma greyish, finely margiuated with whitish. M.^ and M^a 



\±%iA±3 Ahd. 21, hdw. 14 mm. 

 4+3.4+3 



$ . The females are not in sufficiently good condition for 

 description. 



From Madagascar there are in the writer's collection 3 (J , 2 ? , given 

 him years ago by M. R. Martin. These specimens differ somewhat 



