SYMPETRUM 235 
without stripe. Legs blackish, paler basally. Wings hyaline, extreme base of 
fore wings and a slightly broader area of the hind wing (extending out to anal 
crossing). Costal and basal antenodals yellow; stigma tawny, between black 
hairs. Abdomen reddish more deeply red on the middle segments, only the 
extreme apices of the middle segments transversely lined with black. Appendages 
reddish, yellowish within, tips of forked inferiors black, thinly clothed with 
blackish hairs. 
madidum 
furcatun 
ambiguum 

214. Sympetrum ambiguum Rambur 
Ramb. ’42, p. 106: Mtk. Cat. p. 160: Ris ’11, p. 689: Howe ’20, p. 83. 
Syn: albifrons Charp. 
Length 37 mm. Expanse 58 mm. Mass. and Ill. to Mo., Tex. and Ga. 
Face and vertex yellowish with a narrow black stripe between. Thorax 
olivaceous at the sides, rufous above, bright red on the wing roots; lateral sutures 
and carina in teneral specimens obscurely striped with brown (interruptedly 
on the sides). Legs pale to knees, brownish beyond, claws blackish. Wings 
hyaline with brown stigma, paler at ends, with scarcely any basal flavescence. 
Abdomen rufous, the side spots on segments 3-9 increase in extent and over- 
spread the dorsum on the last 2 segments. Appendages yellowish. 
215. Sympetrum pallipes Hagen 
Hag. ’74, p. 589: Mtk. Cat. p. 163: Ris ’11, p. 688: Walk ’14, p. 373: Byers 
wis ps 71. 
Length 37 mm. Expanse 61 mm. B. C. to Colo. 
Face and vertex yellow with a narrow black cross stripe between. Occiput 
and thorax tawny to rufous brown, scantily pubescent, darker in the depths of 
