126 DRAGONFLIES OF NORTH AMERICA 
tawny stigma and brown veins. Abdomen brown with yellow auricles in the male 
and equivalent side spots in the female; with 3 tawny yellowish spots on the 
dorsum of the middle segments, one broad basal spot and a pair of large tri- 
angular apical spots on each segment. Lower lateral margin of 1-8 pale beneath. 
9 and 10 are obscure. Appendages thinly fringed on inner side with long brown 
hairs. 
A somewhat large form (Length 58 mm.) with brownish face, black 
stigma, more elongate abdomen and appendages, and generally more 
obscure coloration, has been described under the name G. antilope 
(Hagen). 
15. BAsIAESCHNA Selys 
These are slender brownish darners with brown spots on the bases 
of both wings. The radial sector is unbranched and the anal loop en- 
closes two vertical rows of cells. They are common about woodland 
streams in early summer. They fly rather slowly and unwarily and 
are not especially difficult to capture. The one known species is re- 
stricted in range to the eastern states. 
Its nymph was described by the senior author (’01, p. 466) and by 
Ndm. & ’Hart (’01, p. 38). 
80. Basiaeschna janata Say 
Say ’39, p. 13: Mtk. Cat. p. 103: Howe 719, p. 42: ’23, p. 127: Garm. ’27, p. 174. 
Syn: minor Ramb. 
Length 56 mm. Expanse 76 mm. Me. and Wis. to N. C. and Mo. 
This is a pretty brownish darner with conspicuous yellow side stripes. Face 
obscure. Frons with a black T spot above, whose base envelops the vertex 
except at its pale transverse summit. Occiput brown. Front of thorax brown with 
2 obscure parallel yellowish streaks that disappear superiorly. Sides of thorax 
with 2 brown yellow oblique stripes that are rendered more conspicuous by 
borders of darker brown. Legs brown. Wings hyaline with yellowish stigma 
and brown veins, and with a brown spot at their extreme bases. Membranule 
white. Abdomen pale on the swollen basal segments, ringed with brown on the 
carinae; segments 2-9 ringed with black and with a very obscure pattern of 
broad paler parietal areas covering most of the segments; 10 paler above, except 
(male) around its low median tubercle. Appendages brown. 
16. Boyerta McLachlan 
These are large brown species with two big pale spots on each side of 
the thorax, by which they may be recognized even in flight. A dis- 
tinctive structural character is the presence of cross veins in the space 
before the arculus, (the first median space). 
They are inhabitants of woodland streams where the adults fly near 
the water, especially on sunny afternoons. They glide along but little 
