26 ;juiy. 



pareut ; neuratiou brown, the pterostigmatical portion slightly Bmoky, 

 with about six transverse irregular veinlets, anastomosing in the 

 middle. 



The female has the thorax paler and the abdomen darker, entirely 

 brownish. 



The female sub-imago entirely cinereous. 



Madeira. 



This species is allied to G. Bhodani, but the colours are different. 

 It is very difficult to describe the 'Epliemeridae with certainty from dry 

 specimens, but it appears to me that the male No. 64, and the female 

 No. 67 from Santa Cruz, are certainly the same species. The males 

 Nos. 62, 63, & 65, and the females No. 68 from Arribenteo & No. m, 

 are I think also the same species, at least Nos. 63 & 66 ; No. 65 has 

 the neuration rather more prominent, but the male, No. 62, is well 

 intermediate. Thus I think that all form one species. 



Nos. 62, 63, 46, & 65 male imagos ; Nos. 66 & 67 female imagos ; 

 No. 68 sub-imago. 



Note. — The male numbered 69, and the female sub-imago No. 70, 

 belong to a species very closely allied, but probably distinct ; any way, 

 I think it more prudent to leave them for the present, for the male has 

 lost its head and abdomen. It is larger and darker, especially the 

 thorax, feet, setse, apex of the wings, and the pterostigmatical region ; 

 the latter has five transverse, oblique, regular nervules, not anastomosing 

 in the middle. The female sub-imago belongs probably to the same 

 species, but it is necessary to know the female imago to be certain. 

 In any case one should have several specimens to say with any degree 

 of confidence if they form a distinct species or not. ^^ 



ODO]NATA. 

 Genus Libellula, Linn. 

 L. EUBELLA, Brulle. 

 i. JPonscolombii, Rambui", Selys ; L. erythroneura, Schneider. 



Madeira. No. 15, (J . 



M. Brulle's name has the right of priority. This species is found 

 almost everywhere in Europe, except in the northern and eastern parts ; 

 towards the latter it is not found further than Mecklenburgh. I have 

 seen it from Asia Minor, Syria, Egypt, Cape of Grood Hope, and Sen- 

 gal, and also from Java, if the label be correct. M. Brulle cites it from 

 India. 



