OF WASHINGTON. 19 
wing, although the first cross vein is indicated at the upper and 
lower extremities of the median space. 
Leucorhinia hudsonica (Selys). 
"Lilypad Lake," Kaslo, June 7 (Dyar: i $); Fletcher's 
Ranch, Kaslo, 2,800 feet alt., June n (i c?) ; Ainsworth, June 
8 (Dyar: i d, i ?). 
The triangle of fore wings is crossed in all four of our speci- 
mens. The postcubitals vary from 7 to 10. The internal tri- 
angle, in the cT collected on June n, is 3-celled in right fore 
wing, partially crossed by a single vein in the left fore wing ; in 
the d from Ainsworth the internal triangles are 2 -celled in both 
fore wings ; in the 9 collected on June 7 the internal triangle in 
right fore wing is 3-celled, in left fore wing open, the triangle of 
left hind wing is crossed and there is one supratriangular on the 
right hind wing ; in the 9 from Ainsworth the internal triangle 
is 2 -celled in left fore wing, free in right fore wing. 
Leucorhinia proxima Calvert. 
"Lilypad Lake," Kaslo, June i (Dyar: i teneral d), June 10 
(id*); Kaslo, June 12, found dead on hotel window (i d), June 
26 (i d), July 2 (i 9), July 9 (i d). 
The specimen collected on June i has the wings subfumose. 
Sympetrum corruptum (Hagen). 
Kaslo, June 7 (Dyar: i 9), June 13 (i9), June 18 (3 dd 1 ), 
June 19 (2 6V, 299), June 23 (i 9), June 26(2 dd, i 9), June 
28 (i d), June 29 (3 tftf), July 2 (4 99); Fletcher's Ranch, 
Kaslo, 2,800 feet, June n (i d) ; Loon Lake, Ainsworth, July 
ii (i <?). 
Sympetrum madidum (Hagen). 
Kaslo, August 5 (i $). 
The single specimen seems to be referable to this species 
rather than to any other of the described North American 
species of Sympetrum. 
Sympetrum obtrusum (Hagen). 
Kaslo, August 7 (2 99). 
The writer had determined these specimens, from the descrip- 
tion, as Hagen's decisum; but Dr. Calvert has since informed 
him that some years ago, from a study of Hagen's types of 
that species, he reached the conclusion that decisum is a 
synonym of obtrusum. 
[Sympetrum vicinum (Hagen). 
Wellington, September 2 (Dyar: i cT).] 
