DYTHEMIS 249 
234. Dythemis velox Hagen 
Hag. 61, p. 163: Mtk. Cat. p. 172: Ris ’13, p. 841: Smn. ’27, p. 38. 
Length 45 mm. Expanse 70 mm. Tex., N. Mex. and Calif. 
A slender blackish species with striped thorax and half ringed abdomen 
Face yellowish darkened across labrum, postclypeus and top of frons and vertex. 
Thorax brown, sinuately striped with yellow and covered with a very short, 
close, brown pubescence. Collar with a fringe of longer, paler erect hairs. Front 
of thorax with three nearly parallel pale stripes, the median one on carina narrow- 
est. Sides of thorax alternately brown and yellow in streaks, a foremost pale 
streak obscure and interrupted; the next two, entire and rather broad; the rear- 
most pale stripe nearly divided by a backward spur from the dark stripe on the 
last lateral suture (stripe 5). Legs blackish, paler only at base. Wing hyaline 
with a variable touch of brown on both extreme base and tip; stigma blackish. 
Abdomen moderately swollen on paler basal segments, blackish and slender 
beyond. Sides of 1 and 2 with narrow vertical pale stripes; side of 3 with a broad 
basal pale stripe narrowed above; dorsum of 4—7 with paired pale spots, largest 
and plainest on 7; 9, 10 and appendages blackish. 
At Double Horn Creek near Shovel Mount Texas Mr. F. G. Schaupp 
observed the habits of this species. He says of it (in litteris): 
“Tt sits on tall dry stems, perching, with the hinder half of the ab- 
domen lifted high into the air. It deserves its name (velox, swift) by 
full right (it might be velocissima). It flies off before you are near; 
but it invariably returns to the same place, even after several attempts 
have been made to catch it. It may take ten minutes for returning, 
coming into the collector’s neighborhood frequently, but keeping al- 
ways at a safe distance.” 
235. Dythemis fugax Hagen 
Hag. ’61, p. 163: Mtk. Cat. p. 171: Ris 713, p. 839. 
Length 48 mm. Expanse 75 mm. Texas 
A fine brownish species with half ringed abdomen and basally brown-spotted 
wings. Face pale, becoming reddish with age, including frons. Thorax nearly 
bare, pubescence very short except for long, erect, pale fringe on collar. Front of 
thorax with scarcely a trace of pale stripes; sides brown, with 3 obscure pale 
stripes of which the middle one is broader, and the rear one dilated at upper 
end. Legs blackish, paler at base. Wings hyaline except for a rich brown cross 
band that extends just beyond the arculus in both wings, and a touch of brown 
on the extreme apex. Stigma black. The slightly swollen basal abdominal seg- 
ments are mostly yellow, ringed with black on the carinae; remainder of abdomen 
blackish with yellow spots. Paired pale spots of dorsum in fours on segments 
3-6; single on 7, and larger and more conspicuous. 9, 10 and appendages 
black. 
