CELITHEMIS. 147/ 



of the male hardly as long as the two apical segments of the. abdo- 

 men, black, the base hardly rufous ; the inferior appendage ex- 

 tending beyond the denticulated portion of the superiors; hamule 

 shorter than the genital lobe ; vulvar lamina extremely .short, 

 excised ; wings with rufous veins, the posterior ones with a nar- 

 row, fuscous, anal band, veined with yellow, not attaining to the 

 front margin, the anal margin with an oblong, hyaline spot ; pte- 

 rostigma short, nigro-fuscous ; membranule white; 8 — 10 ante- 

 cubitals ; 7 — 8 postcubitals; two discoidal areolets. 



Length 38 millim. Alar expanse 10 millim. Pterostigma 2 

 millim. 



Hab. Cuba (Poey) ; Tampico, Mexico (Saussure). 



The specimen described by Rambur is smaller, and may be dis- 

 tinct. Lib. marcella Selys 1. c. from Brazil, is of the same size as 

 the specimens described by me ; perhaps the same species. 



CELITHEMIS Hagen. 



Eyes connected in a short space ; posterior lobe of the prothorax 

 broad, excised in the middle ; abdomen shorter than the wings, 

 slender, compressed, trigonal, the base a little thicker, segments 2 

 and 3 with transverse sutures; feet long, slender; base of the 

 posterior wings a little dilated ; pterostigma oblong, long ; the 

 first sector of the triangle sinuated; triangle broad; caudal ap- 

 pendages short ; genital organs of the male hardly prominent ; 

 hamule two-parted ; vulva disclosed, the segment following it 

 carinated beneath, bituberculated. 



1. C. eponina! 



Libellula eponina Druiy, Ins. II, 86 ; pi. xlvii, fig. 2. Fab. Ent. Syst. 

 II, 382, 39. Coquebert, Icon. 27, pi. vii, fig. 1. Burm. Handb. II, 

 853, 30. Ramb. Neuropt. 45, 20. Selys ! Poey Ins. Cuba, 442. Oliv. 

 Enc. Meth. VII, 572, 19. Say, Jour. Acad. Pbilad. VIII, 24, 11.— 

 Libellula Camilla Ramb.! Neuropt. 46, 21. — Libellula lucilla Ramb.! 

 Neuropt. 46, 22. 



Reddish-yellow; labium pale; thorax yellow, with a medial, 

 fuscous stripe anteriorly ; the sides with two lines, and a third, 

 intermediate, abrupt one, brassy-black ; feet black, base of the 

 femora yellowish; abdomen yellow, dorsum each side with a 



