294 Mr. K. ,1. M..rtono» 



TJndenia tetraphyUa, quite n diflferent conception of what the 

 insect is like is iriven when a |n('|iare<l specimen is compared 

 with the usual dried ones. But lor the reason above men- 

 tioned the characteristic parts of the second abdominal seg- 

 ment in the male and the valvula vulvie in the female have 

 not been regarded, and liave been sometimes completely 

 removed or obliterated. 



In point of number of species, Major Brewitt-Taylor's 

 caj)tures are less extensive than the combined collections 

 ])reviously dealt with, and onlv one additional species fails to 

 be noticed, namely the wide-spread Pantala //ayesce/K^, which 

 was rather unexpectedly wanting- in the collections of Captain 

 Evans and Captain Buxton. All are from Basra and Amara, 

 the bulk of them being from the former locality, and the 

 time covered comparativelv short, the extreme dates being 

 Gth May to 14th August, I'OIG. 



A good series, in excellent preservation as to colour, of 

 the small Crocotkemis, which I had |)revioasly referred to 

 C. erythrcra, leads me to consider the IMesopotamian insect as 

 distinct from that species, although decidedly belonging to 

 the C. erythrcea group. 



In the following list, to save undue multiplicatioji of dates 

 when the number of examples is large, each month has been 

 divided into three equal parts, only the first and the last date 

 in each part being quoted. 



Dr. Gahan, in forwarding the dragon-flies, also commuin- 

 cated Major Brewitt-Taylor's note-book, from Aviiich I have 

 made a number of extracts relatiug to the hal)it3 and the 

 colours of the living insects. These are not only of interest 

 and of use, but their preservation in this form may also serve 

 a» a small tribute to tiie memory of the collector. 



Ischniira evansi, ]\Iorton. 



1 c? , 18. vi. ; 2 $ ? , 9-15. V. (Basra). 



Apparently not .separated by llio collector from the following 

 species. 



Ischnxira bukharensls, Bartencf. 



C c? c?, 8-9-1:5-20. v., 14. vi. ; 9 ? ? , S-9, 11-13, 25- 

 2G. v., 4. vi. (liasraj. 



Six of the females of the orange form ; three without 

 orange, having the lower part of the thorax pruinose, one of 

 them with iinperlcict black shoulder-stripes. 



Stated to be very common on banks of streams, and that 

 both sexes come to light at night. 



