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Original description: Galloisiana
biryongensis Namkung 1974
Male holotype: Size large for the
genus.
Head: Chestnut-like, rounded, flat and wide
in shape, wider than long (6.1 to 5.7 ㎜). There are yellowish-white
fine hairs on the brown smooth surface. Seven or eight setae at
the lateral margins of the back, tow or three near the antennal
socket, one or two along the parietal suture. The cranium line is
clearly seen from the base of the antenna to the occiput.
Clypeus:
Trapezoidal, somewhat bulged. 1.8 ㎜ in front, 2.2 ㎜ at back, 1.3
㎜ in height. The cephalic half is membranous.
Labrum:
Semicircular, anterior margin rounded, wider than long (1.3 to 0.9
㎜). Yellowish brown bristles on the whole surface.
Eyes:
No eyes externally visible, but examining with a microscope closely
we could see a light colored spot which was narrow oval in form,
and we found that there are a pair of setae on the eye area.
Antenna:
48 segments on the left, 40 segments are broken on the right, the
basal segment came a strong thick one. The third segment (0.4 ㎜
width, 0.8 ㎜ long) is about three times longer than the 2nd segment.
The 4th segment and 2nd one have the same length and the rest of
them are elongated gradually. From the 23rd segment twice or three
times longer than broad and the last segment is shaped like a bullet,
somewhat shorter.
Maxillary palpi: Five segments
rod-like in shape, the 3rd and the 5th segment, bearing a few setae,
have nearly the same length. They are longer than the 1st segment
plus the 2nd one (1.3 to 0.8 ㎜). The 4th segment (1.1 ㎜) is slightly
shorter than the former.
Labium palpi: Composed of
three segments which have respectively tha same length, they are
three times longer than broad. They are nearly like the maxillary
pali in form, but slightly slender. There are setae on the 1st and
the 2nd segment, but no setae on the 3rd segment.
Lacinia:
Along the concave edge, there are two well-spaced preapical teeth
and a row of sparsely arranged long stiff bristle on the inferior
part.
Pronotum: Slightly longer than broad (6.4 to
6.2 ㎜), gently narrowed from front to back. Seven setae on the
promargin, seven on the lateral margins, three only at the middle
of the hinder part.
Mesonotum: Trapezoid in form,
the promargin narrow and the hind one wide (front 4.0 ㎜, back 5.3
㎜, height 4.0 ㎜). The back side width is shorter than that of
the pronotum. Three brown setae on the left side, two on the right
side, four or five on the lateral margins below, two irregularly
on the middle.
Metanotum: Trapezoid in form, the
promargin slightly shorter than the retromargin (front 4.7 ㎜, back
5.0 ㎜, height 3.3 ㎜), two setae on the left side and four on the
right side of the promargin, two on the middle line, three on the
left and five on the right below irregularly.
Sternum:
The first cervical sclerite has heavy spine-like setae, borne along
the distinct lateral margins (left 10, right 9). There is a V-shaped
sclerotized part below.
Abdominal sterna: Separated
by the pleural membrane, with 7-8 large setae at each side of reteromargins
and one pair of setae on each of the lateral sides. The 4th and
5th sterna of the abdomen are the widest of all and are nearly as
wide as the retromargin of the mesonotum, its inferior part gets
narrower and narrower, toward the tip. The supraanal plate is like
a dull point of a fountain pen in form and this is a distinct difference
from the closely related species. It has an acute point in Galloisiana
nipponensis.
Abdomen: Separated
into eight segments and with numerous setae on each of its plates,
rather irregularly arranged, Ten pairs of spiracles are faced against
each other on the latero-ventral segments of the pronotum, the mesonotum
and from the 1st to 8th sterna of abdomen. It showed a considerably
large ventral tube on the 1st abdominal segment.
Cerci:
Nine segments on the right cerci (the left on broken six segments).
The first segment is about three times longer than broad (1.7 to
0.5 ㎜), the second about 2.5 times (0.9 to 0.36 ㎜), the 3rd one
about 3.5 times, the inferior part of it elongated. The 8th is the
longest of all, which is two times longer than the 2nd one, the
tip of the 9th segment is broken on our specimen, but it seems as
long as the first. The whole length of the cerci is five times more
than the hind femurs. There are three or four large setae at the
end of each segment and long, white and fine hairs which look like
sensory hairs at the outside.
Legs: Strong, the ratio
of legs (length divided by width) is as below. The anterior femora
1.8; the middle one 1.1; the hind one 1.1; the anterior tibia 3.7;
the middle one 4.0; the hind one 5.7. There are white pulvilli on
the tarsal segments (See Figs 10 to 11). Leg formula: 3.1.2 (26.0
㎜, 21.2 ㎜, 20.4 ㎜). The hind legs are the longest of all.
Male
genital organ: The coxopodites asymmetrical with a movable flat
plate having a stylus at the apex. The left coxopodite is a scoop-shaped
structure, largely ventral in position, and the width of basal segment
is about 2.5 times wider than the right coxopodite. The right coxopodite
is acutely triangular in shape with the basal segment narrow and
wholly lateral. Near the base of its dorsal margin is a short thumb-like
process bent inwards. The stylus is cylindrical, five times longer
than broad and bears outstanding long setae, four on the apex and
two at the inferior side of the right one, four on the apex three
at the inferior side of the left one. The ventro-lateral margin
of the 10th abdominal sternum are produced into a pair of free arms,
which are bent nearly meeting below. The left arm is longer than
the right, strongly sclerotized and the end is a clear round plate.
The right arm is shorter, and so weak and transparent that it can
hardly be seen. The left phallomere is supported by the sclerotized
skin and has a long, white eversible sac, it is almost entirely
membranous and multi-wrinkled in form. The right phallomere is nearly
membranous and transparent that is can hardly be seen from ventral
side. The principal copulatory sclerite which is covered with a
scleotized skin and two accessory copulatory sclerite are seen in
the inter sternal area.
Coloration: General coloration
grayish brown, head and pronotum noticeable darker.
Measurements
(length in millimeters): Body about 34; antenna about 25; cercus
about 15.2.
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Length
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Width
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Head
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5.7
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6.1
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Pronotum
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6.4
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6.2
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Mesonotum
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4.0
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5.3
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Metanotum
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3.3
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5.0
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Leg I
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21.2
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II
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20.4
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III
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26.0
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Female: A single female exuviae was
found in the same cave (August, 1969 by Jeong-Woo, Lee). Selected
body segments are illustrated in Figs 12 to 16.
Type
specimen: Holotype ♂ (17. VI. 1966: collected by J. Namkung). The
type of new species is deposited in the author's collection.
Type
locality: A lime-stone cave calle "Biryongdong-gul" at
Biryong-dong of Yongtan-ri, in Jeongseon-myeon of Jeongseon-gun,
Kangwon-do district, Korea.
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