Article beginning on page 428.
Psyche 8:428, 1897.

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428 PSYCH,!?, [November i&op
North America. Professor Brunei- de-
scribes the species so named by him as
L the large red ant that builds mounds
of sticks, so common throughout a
large portion of the northern United
States." On asking MS. Pergande,
what this species might be, he replies : N What the particular species is with
which M. nebrascenst's is associated,
I am unable to say, though I incline to
the belief that it equally frequents the colonies of Formica $.deruZa Em.,
Form. integmides Ern., Form. rubi-
ginosa Em., and possibly other forms
belonging to the great Rufa group." ,
This species is easily separated by
its size from M. $erfuna?ei on one side, and M nehawkae on the other ; from
M formicarum it differs by its more
convex body and also by its smaller
size; and from M. oregomensis, to
which it is most closely related, by its smaller size, lighter color, anteriorly
broader pronoturn, the more equal
breadth of the posterior thoracic and
anterior abdominal segments, its rela-
tively broader hind femora, longer hind
tibia1 spurs and shorter ovipositor.
Myrmecophila nehawkae sp. nov.
Of minute size, long oval, convex, much
more than half :is long again as broad,
sparsely tomentose, dull testaceous, the pro- notum and succeeding segments posteriorly margined rather broadly and feebly with
fuscous, the former also narrowly edged
with dnli luteous in front; head more or less infuscated; antennae scarcely so long as the body, luteous or Iuteo-testaceous, as are also, but sometimes more pallid; the cerci and legs. Pronoturn shaped as in M. ?zebras- censis; mesonoturn and metanotum equal
and scarcely longer than the subequal first and second abdominal segments. Hind
femora ovate, at least as arcuate above as below, not more than half as long again as broad; outer hind tibiat spurs much less than half as long as tarsi. Cerci short, rather stout, tapering from a little beyond the base, much shorter than the hind femora ; ovipositor fully as long as the hind femora. Length of body, 8, 1-75 mm., 9, 2 mm ;
breath, 8, 1.1 mm., 9, 1.5 mm.
2 8 , 3 ? . Weeping Waiter, Nebr.,
L. Bruncr, with Cvemdogaster limo-
lata Say, as determined by ~er~ande.
This species differs from all the others by its minute size, being as far as I
know the smallest species living, with
the exception of that found in S. Arncr- ica. From its nearest ally, the next pre- ceding species, from which it differs
also least in size, it is separable by the points brought out in the table.
PERSONAL NOTES.-Dr. J. W. Folsom lished by the Cpbridge Museum of Com- has left Cambridge for Yellow Springs, parative Zoology. Ohio, where he has accepted the chair of Dr. A. G.Mayer, tliepresident of the Club, natural history at Antioch College. A por- has gone again to the Pacific Islands with tion of his recent studies on the Thysanura Dr. Alexander Agassiz in the U. S. Fish - the anatomy and physiology of the mouth- Commission steamer Albatross and will be parts of Orchesella -has recently been pub- absent until early in the spring.




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