Cambridge Entomological Club, 1874
PSYCHE

A Journal of Entomology

founded in 1874 by the Cambridge Entomological Club
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Article beginning on page 14.
Psyche 7:14, 1894.

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14 PSYCHE. [January 1894.
have never seen any long-winged speci-
mens in New England but Mr. W. S.
Blatchley states (Can. ent., 1891, 76)
that he has taken a female in Indiana.
C. cons$ersa is quite uniform in color-
ing, being invariably brown or straw-
color, never green, while the other two
forms or so-called species present an
interesting case of dimorphism in color, specimens of both sexes being partly or
wholly either brown or green; most
commonly, the females are wholly green
or brown and the males green above with
brown sides, and mating with females
of either color.
Ordinarily the wings and tegmina are
of about equal length, reaching, in the
male, about half-way down the femora,
and in the female rather less, in the form called C. viridis, and in the other form, C. functulata, reaching to the end of
femora. Specimens occur having wings
and tegmina of an intermediate length,
and short-winged males mate freely with
long-winged females of either color ;
long-winged males appear to be ex-
tremely scarce, but all the other forms
are common, the long-winged much less
so than the short-winged.
No other chaiacters of more than
individual importance are presented by
these two forms to indicate them as dis- tinct.
The two are found associated in
time and place, and mated, whence I
conclude that without a doubt the long-
winged, less common form, is the
ancestral form which is giving place to
the other.
Continuing in another genus of the
Tryxalinae,-Stenobotfirq- we meet
two forms, quite variably colored
and
presenting a marked contrast in length
of tegmina and wings, which have long
been considered to belong to one spe-
cies, S. cdpennis and 6'. longifennis.
These are about equally plentiful.
The
long-winged form frequently makes use
of its wings in locomotion while the
other is obliged to resort to a more
prosaic mode of progression.
Take next the two species A'. aequalis
and S. maculifennis. Here structural
differences in the vertex and, pronotum
are usually, but not always, accompa-
nied by a difference in length of wing
serving to distinguish the two species.
Owing to the fact that long-winged indi- viduals occur in the short-winged species and to the wide variation in color pre-
sented by both species they have been
much confused and misunderstood by
various authors.
Lembert of Yosemite, Cal., and remarked
PROCEEDINGS OF THE CLUB.
upon the scarcity of the species of Kodiosoma in collections.
g June, 1893.
The 179th meeting was held
Mr. A. P. Morse read a paper on Wing-
at 156 Brattle St., Mr. S. H. Scudder in the length in some New England Acrididae and chair. exhibited specimens in illustration. Mr. H. G. Dyar exhibited specimens of
Mr. S. H. Scudder exhibited a folding net Kodiosoma eavesii collected by Mr. L. B. sent to the club from Switzerland.




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