218 
GENUS NEONEURA (oDONATA) 
to it on the same .segment, except on six and still more on seven where 
it is duller, becoming yello\yish; eight above dull yellowish brown wdth 
subapical spots, homologous to those on the preceding segments, broadly 
joined on either side with a lateral stripe; nine greenish yellow, on either 
side a large triangular basal black spot two-thirds to three-fourths the length 
of the segment, dorsum of apex black; ten largely black, a small median 
spot and apex pale. Seen from the side in one female the dorsal blue is 
Irordered with a black line, beginning subbasally and ending in the subai)i- 
cal black area, this black line scarcely evident on segment two, most distinct 
on three to eight; in the other female this dark border is present but less 
developed, scarcely evident on two and three, more or less interrupted on four 
and five, and on three to six narrowly separated from the blue dorsum by pale 
yellow; sides below pale, more or less irregularly varied with light bright yel- 
low, dull yellow', and greenish reflections; sides of eight dull yellow, a submedian 
dark spot near the lower border; nine dull yellow, a basal dark spot or stripe 
two-thirds its length, near the lower border; lower edge of genital valves and 
valvular processes distinctly black; ten pale. 
Legs light yellow or cream; posterior external face of the femora, their 
apices and the inner face of the tibiae, dusky or black. 
^^’ings hyaline; stigma light l)rown, covering one cell or slightly less. 
British Guiana: all in 1912; near the mouth of the Potaro 
Kiver, Februaiy 4; Tiimatumari, February 4, 7, 9 and 11; 
Ilockstone, February 14: a total of ten males, two females. 
Type . — cT, February 11; 9 , allotype, February 7; Tumatumari, 
in writer’s collection. Named for i\Irs. Jane Atkinson, wife of 
Dr. D. A. Atkinson, a companion on numerous collecting trips 
to whom I am indebted for many specimens. 
This bright blue and black species is as different from other 
Neoneura I have seen iii life in its habits as in its colors. As we 
ascended the Essequibo Kiver from Rockstone they were seen 
several times flying over the river far from the shores, and the 
first one taken came near enough to be netted when our boat 
was entering the Potaro Kiver. The river at this time was in 
very low water stage, and on a long sand bank at the water’s edge 
below Tumatumari the species was frequently seen. The female, 
attended by the male, oviposits in leaves partly embedded in 
damp sand, though often at some distance from the water, but 
where a rise of the river, if only a few inches, would submerge 
them. The species is as active as its congeners, and its bright 
blue color, with the sharply patterned black, gives it a brilliance 
scarcely less than some of its flaming relatives. 
