524 Anxals of the Carnegie Museum. 



Genus Micrathyria Kirby. 



15. Micrathyria aequalis (Hagen). 



Dyihemis csqualis Hagex, Syn. Neur. N. Amer., 1861, p. 167. 



Five males taken at Xueva Gerona and a male and female taken 

 at Los Indies in May, 1910, by J. L. Graf. 



16. Micrathyria didyma (Selys). 



Libellula didyina Selys, in Sacra's Hist. Nat. de Cuba, \'II, 1857, p. 453. 



A male and a female taken at Xueva Gerona and two males captured 

 at Los Indios in May, 1910, by Graf. 



17. Micrathyria dissocians Cahert. 



Micrathyria dissocians Calvert, Biol. Cent. -Amer., Ins. Neur., 1906, p. 226, PI. 

 IX, figs. 19-21. 



Four males taken by Graf at Nueva Gerona, May 5-14, 1910. 



Genus Erythrodiplax Brauer. 



1 8. Erythrodiplax berenice subsp. naeva (Hagen). 



Dythemis nceva H.\gex, Syn. Neur. N. Amer., 1861. p. 167. 



One male taken at Xueva Gerona by Link, .September 2, 1912. 



The front wings with the internal triangles two-celled; the discoidal 

 triangle in the left wing two-celled, in the right wing free. 



19. Erythrodiplax minuscula (Rambur). 



Libellula minuscula R.\mbur, Ins. Neur., 1842, p. 115. 



Two females, Xueva Gerona, May 9; one female, Los Indios, May 



20. 1910. 



The specimens were collected by J. L. Graf. 



20. Erythrodiplax ochracea (Burmeister). 



Libellula ochracea Burmeister, Hand. Ent., II, 1839, p. 854. 



Xumerous specimens of both se.xes taken at Xueva Gerona, Los 

 Indios, and Columbia by Graf in the month of May, 1910, and by 

 G. .\. Link, Sr., from July to September, 1912. 



21. Erythrodiplax connata justiniana (Selys). 



Libellula connata Birmeister, Handb. Ent., II, 1839, p. 855. 



Libellula justiniana Selys, in Sacra's Hist. Nat. de Cuba, VII, 1857, p. 181. 



Xumefous specimen? taken by Graf at Nueva Gerona and Los 

 Indios in May, 1910, and by Link at the same localities from July to 

 September, 1912. 



