264 NEW YORK STATE MUSEUM 
of the others, together with a few corrections. Dr P. P. Calvert 
has generously offered for publication here additional data on 
the distribution of the New York species of Odonata, accumu- 
lated since the publication of the second instalment of his list. 
In bringing such data together in one place, he shows coummend- 
able regard for the convenience of the student of our local 
fauna. 
1 ANISOPTERA 
ADDITIONAL NOTES WITH DESCRIPTIONS OF HITHERTO UNKNOWN 
NYMPHS 
Hagenius brevistylus, Lanthus parvulus and Dromogomphus spinosus 
A number of cast nymph skins of each of these species were 
found on the stone embankment at the outlet of Forest lake 
{Fall creek, Ithaca) on my arrival in the latter part of June. A 
female imago of L. parvulus was found in a mass of foam 
floating on the water at the foot of a little fall in Fall creek 
July 9. 
Gomphus fraternus 
The species to which I have several times referred by this 
name in print! as coming from Havana II]. was so determined 
for the Illinois State Laboratory of Natural History by Dr 
Hagen from material obtained from that locality. It appears 
from a recent study of this and closely related species by Dr P. P. 
Calvert? that Dr Hagen made a mistake in naming it so. The 
Hayana species is G.externus, and, as may be inferred from 
the fact that Dr Hagen confused the two species, they are exceed- 
ingly closely related. I was unable to use Dr Calvert’s paper in 
the preparation of Bulletin 47, and the description I have given 
therein on p.451 is drawn from specimens of G. externus. It 
will apply equally well to the nymph of G. fraternus. I took 
the latter species in transformation at Ottawa Ill. on May 24, 
and have since had bred specimens for study from the United 
States National Museum, collected at Detroit Mich. It has re- 
en 
1Canadian Ent. 29:164, 165, pl.7, fig.11 and 12. N. Y. State Mus. Bul. 47, — 
p.451, pl.20, fig.11 and 12. 
20n Gomphus fraternus, externus and cragssus (Order 
Odonata), Ent. News. 12:65-73, pl.3 
