1908] ■ MuttkoivfiJd, Dragon Flies of Wisconsin. 121 
lig-hter. Abdomen light brown or yellowish, oblique triangular spots 
on each side of the dorsum. 
Female. — With similar body markings. Wings with the basal 
streaks like the male, leaving the triangle of the fore wing clear, and 
filling that of the hind wing. A large nodal spot and the apices of all 
wings fuscous. The imago in flight resembles puchella greatly, but 
is distinguished by the smaller size and the oblique white spots on the 
abdominal segments. 
Life Zone : Found everywhere in the Transition and Austral areas. 
Wisconsin: Dane Co., June 1890; July 10, 1901; Milwaukee Co., 
Aug. 12, 1898; June 10, 1899; July 1-6, 1900; July 1, 1900; June 15, 
1902 ; June 7, July 10, 1903. Very common. 
Time and Habitat — Ponds, marshy woods and open places from 
May to August. 
TRAMEA Hagen, Syn. Neur. N. Am., p. 143, 1861; Needham, 
Proc. U. S. Nat. Mus. 26, p. 728, 742, 752, 1903 (Venation). 
A genus of over thirty species, of which four occur in the 
Austral Ufe areas. The imagoes are strong and rapid fliers, due 
to the large expanse of wing. They are distinguished from all 
other Odonata by the very broad hind wings, from one-third to 
nearly one-half as wide as long at the base, and the large fuscous 
or black spot at the anal angle. Wherever they occur they are not 
at all rare, but are very difficult to capture because of their great 
wariness and the rapidity of their flight. In their habits they are 
much like other Libellulinae, showing no preference for any par- 
ticular habitage, but frequenting lakes and ponds with the same 
fond assurance that carries them triumphantly over fields and 
along wooded roadsides. 
1. Color of body and anal blotch brown or reddish 2 
Color of body and blotch black; stigma black lacerata 
2. Anal blotch not attaining the costa, divided by the clear basilar 
space ; stigma fuscous 3 
Anal blotch entire, reaching the costa ; stigma red or orange 
Carolina 
3. Anal spot yellowish; stigma small chinensis 
Anal spot fuscous, stigma long onusta 
Tramea lacerata Hagen, Syn. Neur. N. Am., p. 145, 1861 ; Needham, 
Bull. 47, N. Y. State Mus., p. 539, 1901 (Bibliography & desc. of nymph). 
Abd. male 35—36, female 35—37; h. w. male 45 — 47, female 44; 
width at base 19. 
Male. — Adults black mixed with brown. Face brown, banded with 
black. Frons above and vertex metallic dark blue or purple. Thorax 
black above, lighter on the sides, lateral sutures marked with black. 
Legs black. Wings hyaline, nerv^ure black, brown toward the costa, 
stigma short, blackish. Fore wings with a short streak and a small 
triangular spot at the extreme base. Hind wings widening toward the 
base, a large spot at the basal fourth black or fuscous, leaving the 
basilar space clear, and with a deep incision at the middle of the anal 
margin. Abdomen blackish brown, darkest at the apices of the seg- 
