Zool.-Vol. I.] CALVERT— ODONATA. 389 



2. Miathyria simplex Rambur. 



Basal spot on hind wings extending into the triangle. Black spots on 5-10. 

 Size moderate (abdomen 22 mm., hind wing 27 mm.) Vulvar lamina emar- 

 ginated, not bilobed. 



3. Miathyria pusilla Kirby. 



(From Kirby's description and figure.) Basal spot on hind wings extend- 

 ing to the triangle. Black spots on 3-10. Size small (abdomen 20 mm., 

 hind wing 25 mm.) 



Mr. Kirby states 1 that he is now inclined to think -pusilla 

 "is synonymous with M. simplex Ramb." His Miathyria 

 Jlavescens, described on the same page, seems from his 

 description and figure to be rather a Macrothemis. 2 Tetra- 

 goneuria balteata Hagen, which he doubtfully refers to Mia- 

 thyria in his Catalogue, page 4, is not of this genus, as it 

 has the front wings with the last antenodal continuous, the 

 subtriangular space (internal triangle) of different shape 

 and two-celled, sectors of the arculus not stalked; on the 

 hind wings the inner (basal) side of the triangle is a little 

 nearer the base than the arculus. I do not know its proper 

 generic position. 



23. Pseudoleon superbus Hagen. 



Celithemis superba Hagen, Syn. Neur. N. Am., 1861, p. 148. 

 Pseudoleon superbus Calvert, Proc. Cal. Acad. Sci., 2d Ser., Vol. IV, 

 1893-94, p. 518, PI. XVI, figs. 62-66. 



i S 1 $ Tepic, Oct., 1894, Eisen and Vaslit. 

 24. • Orthemis ferruginea Fabricius. 



Libellula ferruginea Fabr., Sys. Ent, 1775, p. 423. 



Orthemis ferruginea Calvert, Proc. Cal. Acad Sci., 2d Ser., Vol. IV, 

 1893-94, p. 520, PI. XVI, figs. 67-69. 



6$ £ ? Tepic, Oct., 1894, Eisen and Vaslit. 

 10 3 7 ? " Nov., 1894, " 



2$ Mazatlan, Eisen and Vaslit. 



18a 12? 



1 Ann. Mag. Nat. Hist., 6th Ser., Vol. XIX, 1897, p. 600. 



= See on this Proc. Bost. Soc. Nat. Hist., Vol. XXVIII, 1898, p. 328. 



