1 6 University of Michigan 



locality label, "MG" (Minas Geraes), and a large green species 

 label; in addition the male has a black-bordered species label, 

 and a label by Kennedy "penis drawn." The male in the de 

 Selys collection, figured by ]\fenger (figures 119 and 120), 

 bears identical blue and green labels. There is also in the 

 Hagen collection a female with a small printed label "Hagen", 

 a large white label on which is written "Lagoa Santa Lund", 

 and another similar but larger label on which is written "Argya 

 signata nob." The specimen is teneral and in poor condition, 

 but I believe it is certainly flavovittatum. 



The hind lobe of the prothorax of the male specimen is not 

 fit to figure, but it is apparently similar to that of the female, 

 with the black more extensive. 



A wing of this species has been figured by Needham (A 

 Geneologic Study of Dragon-fly Wing Venation, Proc. U. S. 

 Nat. Mus., Vol. XXVI, Plate LIII, figure 6), in which Rs 

 arises at the third postnodal, at about one-fifth the distance 

 from nodus to stigma, instead of at about one-third the dist- 

 ance as stated by de Selys in his definition of Heteragrion. 



The arculus is distal to the cubito-anal cross-vein .7 to .8 

 mm. ; and the anal vein separates from the posterior border .7 

 to i.o or I.I mm. distad to the cubito-anal cross-vein. The face 

 profiles in both sexes are about as in figure 65. 



2. Heteragrion ovatuui Selys 



A much larger species than flavoi'ittatiim (abdomen male 

 44, hind wing 31, as compared with abdomen 32 to 35, hind 

 wing 2y to 28 in the male of flavovittatuui), and with a rela- 

 tively longer abdomen. Only the male is known, the teneral 

 female provisionally referred to this species by de Selys in 

 1862, being referred to ochraceum in 1886. The male is known 

 only from a single male from Brazil in the Museum of St. 



