1923] 
Williamsonia lintneri {Hagen) 
225 
Stony Brook, West Boxbury, Mass. May 6, 1922. 
(W. J. Clench) Coll. Williamson; Hammonds Pond, Brookline, 
Mass., May 7, 1922 (R. H. Howe, Jr.) Coll. Howe. 
9. Rumford, R. I. May 11, 1922, ‘'near Ten Mile River 
and Central Pond in “the shadow of Pine and Hemlock woods .... 
in low growth of scrub mostly oak swampy with sphagnum 
and skunk cabbage growth, also checkerberry and other boreal 
life.” (E. D. Keith) Coll. Howe. 
9 9 . Stony Brook, West Roxbury, Mass. May 13, 1922, 
“were flying in the vicinity of a small pond, one of them on a 
hillside some distance from the water. This pond is a permanent 
one, surrounded by low land that is covered with water in the 
spring, and along one side is a bog with sphagnum and Drosera,’’ 
(Students, Bussey Institution) Coll. Mus. Comp. Zool. Cambridge, 
Mass. 9 . Bos. Soc. Nat. Hist., 9 . Howe. 
c7. High Rock, Summer Hill, Stoneham, Mass. April, 
1, 1923, “in roadway and on rocks,” (C. V. Blackburn), Coll. 
Howe. 
9 . Bear Hill, Stoneham, Mass. April 20, 1923, (C. V. 
Blackburn) Coll. Howe. 
9 . Bear Hill, Stoneham, Alass. May 5, 1923, (C. V. Black- 
burn) Coll. P. Carman, Conn. Agric. Expt. Station, New Haven, 
Conn. 
The dates, as will be seen, range from April 1, to June 4, 
and undoubtedly the reason W . lintneri has been overlooked is 
because of its flight season when collectors arc not alive to the 
presence of Odonata in the field. My own observations of the 
species bears out the above field notes of other collectors. I 
always find it a woodland species inhabiting the heighborhood 
of cold bogs and brook runs, and it alights generally on stones. 
The orange ring on each abdominal segment makes the insect 
particularly easy of identification in the field. Its larva is un- 
known. 
