148 fJ"'^' 



R. Euphrates, 1 ? , May 18th, 1918 {Buxtori) ; 4 c? ^ , 1 ? , Basi-ah, 

 open marshes, February 11th, 1919 {£arrat/d). 



Evans states, 20.iv.l8: "This dragon-fly was scarce last autumn, 

 only an occasional specimen being seen, and then singly. I saw it at 

 Basra as well as here. On March 2nd, 1918, I went on an expedition 

 to the marshes near Carraba Jedeid, and saw very large numbers of the 

 insect apparently newly hatched. They were mostly resting on the leaves 

 and dead flowering stems of Tt/pha angustifolia, Avhich was there abundant. 

 As many as six or more were seen on a single stem, and five were 

 captured in a single lunge from the Balkan (native boat). Since then 

 the species (?) has been abundant everywhere, especially along the 

 margins of irrigation ditches and pools caused hy the rise of the river. 

 The colour variations have completely mystified me and I am quite 

 prepared to learn that two insects are included under my collecting 

 number." [Only examples of /. evansi are included in the collecting of 

 March 2nd, but no doubt the later observations above refer to both 

 this species and /. hitkharensis. Subsequent examination of " undoubted 

 pairs " appears to have confirmed his belief in the presence of two species 

 and enabled him to separate his specimens practically without error.]. 



5.V.18 : "This species is still abundant." After May it was not 

 definitel}^ noted. A favourite habitat of both species was "on the 

 lucerne and along the irrigation ditches watering it." 



3. — Ischniirn hiil-harensis Bartenef. 



1 c? , 5 2 2 , March 17th ; 1 c^ , 11 $ ? , April 2nd-28th ; 2 6 6, 

 3 $ 2 , May 4th, 5th, and 6th ; 1 2 , August 5th, 1918 (at light), 

 all from the neighbourhood of Amara {Evans) ; 6 6 and 2 2 » March 

 and April, 1 6 , June 13th, Amara ; 1 2 » Hamar Lake, May 18th, 1918 

 {Buxton) ; 3 d' c?, 3 2 $» Basra, November, 1918 (Barmnd). 



Taken in garden by the Masharra ; at irrigation ditches in the palm 

 gardens, and by the Tigris above and below Amara. The disparitj^ in 

 tlie numbers of the two sexes taken by Evans is probably accidental, 

 or it may be due to his having been attracted by the heterochromatic 

 orange females of which the s-eries largely consists ; there appear to be 

 no black or homoeochromatic females (?. e., similar colouring to the 

 males), and only a few olive-coloured heterochromatic ones. 



I believe this species to be identical with IscJinura fountainei 

 Morton, described from Algeria, and scarcely to be separated therefrom 

 even as a good race. At first I was disposed to consider the centrally 

 •lirected processes of the superior appendages as shorter in the present 



