LEUCORRHINIA 243 
The senior author observed the females ovipositing in two quite 
different ways: descending and striking the water with the tip of 
the abdomen while in flight after the manner most common among 
the Libellulidae, and at rest on some vertical stem at the surface of 
the water, plying with the tip of the abdomen just below the surface. 
In both cases the female was unaccompanied by the male. 
The nymph is an alert sprawler, rather prettily marked in an intri- 
cate pattern of green and brown. Paired dots of brown underneath the 
abdomen are rather distinctive. Transformation commonly occurs in 
the forenoon, usually within a few inches of the surface of the water. 
226. Leucorrhinia glacialis Hagen 
Hag. ’90, p. 234: Mtk. Cat. p. 166: Ris 12, p. 719: Howe ’20, p. 84: Garm. ’27, 
p. 281. 
Length 36 mm. Expanse 58 mm. N. H. and N. Y. to Wis. and Nev. 
A dainty little species with reddish thorax and black abdomen. Face pale, 
greenish white, including top of frons. Vertex and occiput black. Thorax pale 
reddish brown and black in a clouded portion that covers the whole of the sides 
and is expended on the base of the abdomen. There is a pair of broad rufous 
bands on the front bordering a stiff broader median black tract, around which 
they are dilated and attingent at their upper ends. The darker streaks on the 
sides do not conform to the sutures; the middle one crosses them. Legs black. 
Wings hyaline with tawny or rufous stigma. The short brown basal streaks 
little developed except for the one at the anal angle of the hind wing, which is 
large and conspicuous. Abdomen pale on the more convex portion of the swollen 
basal segments. Elsewhere black, including appendages. 
The senior author has written of this species (’01): 
During the first week or two of adult life, before age and pruinosity have 
obscured its remarkably fine coloration, it is a singularly beautiful insect. One 
who sees only preserved specimens would not suspect this however, for then 
faded browns have replaced the ruby red color of the males and the brilliant 
yellow of the females. I well remember with what delighted surprise I greeted 
my first specimen. It was a young male, with a brilliant red body phalerate with 
jet black, a flavescent tinge beyond the basal markings of the wings, a rich red 
brown stigma, with a touch of yellow on the costa either side of it, and a face with 
the whiteness and subopaqueness of fine china. That specimen was captured 
the last week of June; soon afterward I found plenty of them—females as well— 
about a bog pond. They were flying with Cordulia shurtleffi, Dorocordulia libera, 
and Lestes ewrina—a group of rare beauties. 
227. Leucorrhinia frigida Hagen 
Hag. ’90, p. 231: Mtk. Cat. p. 166: Ris ’12, p. 719: Walk. ’13, p. 161: Howe 
’20, p. 84: Garm. ’27, p. 280. 
Length 30 mm. Expanse 48 mm. Mass., Pa., Ont., Dak. to B. C. 
