218 DRAGONFLIES OF NORTH AMERICA 
A little brownish clearwinged species having some streaks of black at the 
wing base. Face tawny yellowish; labrum a little darker; frons, and the streak 
through ocelli brown. Thorax brownish, darker in front with a broad blackish 
stripe upon the humeral suture (stripes 2 and 8 fused) and a narrow whitish 
stripe before it. Sides obscure, olivaceous without stripes. Legs pale brown. 
Wings hyaline with brown streaks in the basal subcostal spaces and with a 
triangular patch of brown, before the triangle, resting on the hind margin. 
Membranule white. Stigma brown. Abdomen with a middorsal brown stripe, 
slowly widened apically and with narrow black lines on all the carinae. Ap- 
pendages brown. 
This little skimmer frequents the borders of ponds and flies about 
their edges a very little over the open water, flitting mainly from one 
resting place to another in rather slow, irregular flight. It is quite easy 
to capture. 
188. Ladona exusta Say 
Say ’39, p. 29: Mtk. Cat. p. 184: Wlsn. ’09, p. 656: Howe ’20, p. 71: Ris ’10, 
p. 257: Garm. ’27, p. 246. 
Length 37 mm. Expanse 66 mm. N. Eng. and Pa. 
A rather small brownish clear winged species having coloration that varies 
greatly with age. Face and vertex obscure yellowish brown, with a black stripe 
between. Thorax whitish in front except for the carina, becoming pruinose 
(almost snowy white) with age, as do also the basal segments of the abdomen. 
Sides with a broad stripe of brown, mostly before the humeral stripe; behind 
this, obscure pale brown. Legs brown, blackening with age. Wings hyaline 
with brown stigma and with brown streaks in both subcostal and cubital spaces. 
These more or less confluent basally, the latter in the hind wing spreading 
rearward in a long point adjacent to the white membranule. Abdomen with 
ill defined middorsal stripe of black that widens to rearward, and with narrow 
black lines on all carinae. Appendages brownish. 
Muttkowski (’08) reports this species flying over lakes and ponds 
during June and July. Wilson (’09) writes interestingly of it as follows: 
Abundant everywhere with quadrimaculata in the undergrowth close to the 
shore. When it alights it squats like a Gomphus on the rocks, stumps and even 
on the ground. It is gregarious, as many as 15 or 20 alighting on the same spot; 
it is also inquisitive and many were caught that actually alighted inside the net 
as it was being carried. The males are predominant and even pruinose thus 
early, even the 2 antehumeral stripes showing clear white. 
189. Ladona julia Uhler 
Uhler 57, p. 88: Mtk. Cat. p. 134: Ris 10, p. 258: Garm. ’27, p. 246. 
Length 37 mm. Expanse 66 mm. N. Y. to Md. 
This species differs from exusta in the thoracic stripes as stated in the key. 
The fuscous spots on the base of the hind wing are smaller, not enveloping the 
triangle; the eighth abdominal segment of the male is narrower than the seventh; 
the apex of the inner branch of the genital hamule of the male is directed laterally. 
