118 DRAGONFLIES OF NORTH AMERICA 
strongly widened downward; prolonged at both ends to a narrow confluence with 
2, leaving a rather wide yellow included stripe each side. Stripes 2 and 3 of about 
equal width, widened at a point of convergence near the upper end, and rather 
widely separated by yellow both above and below this point. Stripes 4 and 5 
complete, narrowly linear, deep in the sutures. Legs brown yellowish toward 
the base. Wings hyaline with tawny stigma and yellowish costal margin. Ab- 
spinosus 
spoliatus 

domen brownish basally and reddish on the slightly expanded apical segments. 
Paired pale dots invade the brown on the dorsum of segments 1 to 6 and a black- 
ish narrow line borders the apical and inferior lateral margin of segments 8 and 9. 
10 and appendages yellow. 
Williamson (’01, p. 119) characterizes it as ‘‘An active, inquisitive 
species, relentless in love and war, more wary than D. spinosus and 
most numerous about the water from 9 A.M. to 4 P.M.: conspicuous by 
reason of the yellow, or reddish yellow, 7th to 9th abdominal segments” 
He found them abundant along the old canal-feeder of the St. Josephs 
River in Indiana and observed them capturing cabbage butterflies 
(Pieris rapae) and damselflies ( Hetaerina americana and Argia putrida). 
75. Dromogomphus spinosus Selys 
Selys 54, p. 40: Mtk. Cat. p. 100: Wlsn. 712, p. 192: Brim. ’03, p. 151: Howe 
"18, p. 75223; 'p; 198° Garm, 27, p. Los. 
Length 58 mm. Expanse 78 mm. Me., Wis., Fla., Tex. 
A fine slender yellowish species with rather conspicuous brown shoulder 
stripes. Face and occiput yellow, the latter with blackish touches on the outer- 
most angles. Thoracic stripes of the first pair very narrowly linear and widely 
separated by yellow at the carina and narrowly connected at the ends with 
stripe 2 to surround a wide yellow trapezoidal stripe. Stripes 2 and 3 of about 
