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VI. Calopterygina collected by Mr. Buckley in Ecuador 

 and Bolivia. By R. M'Laciilan, F.Ii.S., &c. 



[Read February 6th, 1878.] 



The raison d'etre of this short paper consists in the 

 recent acquisition by me of a small collection of dragon- 

 flies (and a few Planiyennid) captured by Mr. Buckley 

 at Intaj, in Ecuador, of which a large proportion are 

 Calopterygina. On previous occasions I had received 

 from him a few examples from the same Republic and 

 from that of Bolivia, taken on former expeditions. The 

 majority of the specimens proved to pertain to undescribed 

 species, or to interesting varieties of already-known forms; 

 hence it appeared to be of scientific value to incorporate 

 a notice of the whole in a short memoir, as an incentive 

 to him and to future travellers to pay more attention to 

 these neglected insects. The discovery of the magnificent 

 Eiithore mirahilis, herein described, is in itself a proof of 

 the richness of the Northern Andes, and another species 

 {Lais imjieratrix) is scarcely less important. 



All the species are peculiarly characteristic of the 

 regions Avhence they come, and thus neotropical in aspect. 



Some of the species from Ecuador (received formerly) 

 have already been described, or alluded to, by my friend 

 and colleague Baron de Selys-Longchamps, in the 

 " Troisiemes Additions au Synopsis des Calopterygines," 

 published in 1873; and as an acknowledgment, on my 

 part, of the exactitude of his method of describing, I have 

 adopted the same (with trifling modifications) in the 

 present paper. The number of new species herein de- 

 scribed is only six, and three of these add to the rapidly- 

 increasing forms of the genus Cora, which could only 

 claim one species in 1854, but of which eleven are now 

 known. 



Lais imperatrix, n. sp. 



? . Of large size. A true pterostigma in the -posterior 

 wings. Wings broad ; postcostal area with three more 

 or less complete rows of somewhat regular cellules. 



TRANS. ENT. SOC. 1878. — PART I. (aPK.) 



