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GENUS NEONEURA (oDONATa) 
edge medianally, broadly bordered with yellowish brown. Projjleuron'as in the 
male, with pale colors duller and brown replacing black. 
Dark thoracic colors on dorsum l)lack with a greenish cast; on the sides, 
black with a reddish cast; pale areas brown, paler on the sides and below. 
Abdominal segment one similar to that of the male but with the pale colors 
brown; dorsum of segments two to ten brown, two with a narrow basal ring 
represented on three to eight by a small median basal black spot, and on nine 
and ten by a large spot which covers about two-thirds of each segment; two 
to eight with narrow apical black rings; two to six with a subapical oblique 
black ring, laetween which and the ai)ical black is a pale dull yellowish area, 
rings and pale area most distinct on two and three, on four to six interrujhed 
in the mid-dorsal line with the pale area growing progressively posteriorly 
darker, practically disappearing on six, where the subapical ring is reduced to 
a dusky spot on either side. Sides below with a longitudinal black stripe 
just above the extreme lower edge which is yellow, this yellow widest and 
most distinct on the anterior segments disappearing on seven, but well de- 
veloped and reddish brown in color on eight; the black bar wide on nine, 
occupying most of the side except the extreme apex; represented on ten by 
obscure basal and apical shadings. Ventral suture black. 
Legs brown, with less black than in the male; the external black of the fem- 
ora reduced throughout, especially basally and on the third femora where it 
disappears in a series of round spots; the black on the tibiae also reduced, but 
here especially apically where on the third tibiae it disappears in a series of 
round spots; tarsi as in the male. 
V'ings clear; stigma light brown, covering slightly less than one cell. 
British Guiana: all in 1912; Wismar, January 31; Tuina- 
tumari, February 9; Potaro Landing, February 10: a total of 
six males, one female. 
Type . — cf; Tumatumari, February 9: allotype 9; Potaro 
Landing, February 10; in the writer’s collection. 
This species is named for Miss Mary M. Shafer, and its close 
relative, myrthea, is named for her sister, Miss Myrth Shafer, in 
grateful recognition of their long services as bililiographers and 
assistants in the “ bug room.” 
This species, in de Selys’ grouping, belongs with rubriventris, 
sylvatica and rufithorax, from all of which it is separated at once, 
among other characters, liy the dark color of head and thorax. 
In the characters of both sexes it is extremely close to myrthea; 
the males of the two species may be separated at once by the 
long, rod-like development of the lower inner face of the upper 
part of the superior abdominal appendage in myrthea. 
This large and brilliant Neoneura is a veritalile gem in life as 
it flies over the pools of small shaded tropical streams and rests 
