Article beginning on page 184.
Psyche 4:184, 1883.

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184 PSYCHE. [ June-July 1884.
thoracic.
Each commissure gives off a
nerve three and one-half millimetres
from the ganglion, going caudad.
The
distance of these nerves from the gan-
glion varies however (fig. 11. 0).
5.
THE VAGUS NERVE. - The vagus
nerve of Corydalus cornatus arises as
two nerves from the crura cerebri, dor-
sad of the labial nerves (fig. iv. 9).
These nerves pass cephalo-mesad, form-
ing two arches, and unite in a ganglion
on the medianiline dorsad of the palate. This ganglion (fig. I. 2, fig. IV. 2) is sometimes called the frontal ganglion,
and is immediately cephalad of the
supra-oesophageal ganglion. The va-
gus nerve departs from the caudad part
of the ganglion, passes caudad between
the aorta and the oesophagus, and con-
tinues on the median line until it reaches a point two millimetres caudad of the
frontal ganglion (fig. iv. 9). Here it
enters another ganglion smaller than the frontal ganglion. This ganglion is also
situated on the median line between the
aorta and the oesophagus. Two nerves
depart from this ganglion, going latero- candad to the sides of the oesophagus
(fig. I. 8, fig. IV. 0). They continue
their course caudad until they reach the pro-ventriculus, where they divide into
many branches.
The vagus nerve gives branches to the
aorta in the head, and numerous nerves
are continually given off to the oesopha- ' gus.
SEXUAL CHARACTERS IN THE CHRYSALIDS OF GRAPTA INTERR 0 GA TIONIS.
BY MARY ESTHER MURTFELDT, KIRKWOOD, MO.
The publication in PSYCHE for No-
. vember-Dccembcr 1883, v. 4, 11. 103-
106, of the full text of Mr.
Lintner's
interesting paper on 'å´' new sexual
character in the pupae of some lepido-
ptera," reminds me of an observation
which I made last summer on the chiys-
alids of Grai)ta interrogationis.
Desirous of obtaining fresh specimens
of this species, I placed about a dozen
elm-feeding larvae in a rearing cage,
from which, in due time, I obtained
eleven chrysalids. These were, in res-
pect to color and ornamentation, of two
distinct sorts. The larger proportion
were of a dull, pale fuscous with darker brown lateral stripes, dots and mark-
ings, without a trace of metallic orna-
mentation, while four were much paler
in general color, inclining to golden
brown, each ornamented with the eight
brilliant, pale-golden, papillose dorsal spots by which this chrysalis is usually characterized. From each of the pale
and gilded chrysalids emerged a female,
while the seven dark and unornamentcd
ones gave forth males exclusively.
This observation may be a mere cor-
roboration of a well known fact con- %
cerning the sexual characters of the
species, but if so I have not met with it, or it has entirely escaped my memory.




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