Ch. diaphanus pentheri and C. salin us according to
Daday (1910). However, in a Bulgarian population
this segment is equipped with a pair of small outgrowths which are smaller than the outgrowths on the
first abdominal segment (Brtek, 1962). Cottarelli &
Mura (1974) also observed a pair of small outgrowths
on this segment in the population of Ch. diaphanus
carinatus from Turkey.
The remaining abdominal segments in females of
the Yugoslavian form have one pair of dorsolateral and one pair of ventrolateral small prolongations
which are covered with fine paillae. These prolongations are, however, missing on the last abdominal
segment. In some specimens, the dorsal prolongations
are less expressed than the ventral ones. These prolongations are especially well developed in adults where
their length may vary. Such prolongations, both on the
dorsal and ventral sides of the abdominal segments, are
not present in any subspecies of Ch. diaphanus or the
populations of this species in Bulgaria and Roumania.
However, in a Turkish population of Ch. diaphanus
carinatus (Cottarelli & Mura, 1974) one pair of small
lateral prolongations is present on the third abdominal
segment; the remaining abdominal segments lack such
prolongations.
The antennae of females of our specimens (Fig. 2)
are similar to those of the Bulgarian population, but
the inner angle is more extended.
The ovisac of our specimen looks like a spindle
and reaches the middle or the end of the fifth abdominal segment (Fig. 1). It resembles the ovisac of the
Bulgarian population.
The body lengths of our females ranged 15,116,1 mm; mean 15,58 mm.
In Yugoslavian C. diaphanus males, the body segments are characterized by the absence of any kind of
lateral outgrowths or prologations.
As for the antennae, the basal article is longer than
the distal one and it can be straight or slightly curved. In
the Bulgarian population (Brtek, 1962) it has a round,
fingerlike protuberance at the distal end of the lower side. Usually the distal article is curved in its first
third, but the remaining two-thirds is straight. In some
specimens, it is very curved in relation to the proximal
article, so that it makes a sharp angle with it. At the
base of the distal article there is a thornlike outgrowth
which is equipped with spines on the upper side. On the
basal part of this outgrowth a small round elevation is
present which is also covered with spines. The apophysis is conical and covered with pappilae at the top. It
is relatively shorter, and its base is wider when com235
pared to Ch. diaphanus carinatus described by Daday
(1910b), but similar to that of Ch. diaphanus carinatus
from Turkey (Cottarelli & Mura, 1974).
On the antennal appendices of the Yugoslavian
males the upper lamella at the base of its outer margine
has three big fingerlike extensions; the distal one is the
longest. The lower lamella is characterized by the presence of the carina. In its structure and in the number
of longer extensions on the base of the upper lamella, the antennal appendices are more similar to those
of Ch. diaphanus carinatus from Turkey than to those
from Greece. When compared to the Bulgarian population our form is characterized by only one row of small
thorns at the base of the marginal spines of the inner
edge of the lower lamella, and by the absence of two
longitudinal rows of spines on the base of upper lamella. Pesta (1921) did not present a detailed illustration
of the antennal appendices in Ch. diaphanus pentheri
but stated that the upper lamella had three longer extensions at the base, whereas the lower lamella had the
same structure as C. diaphanus. Antennal appendices
of the Yugoslavian from differ in having a carina when
compared to Ch. salin us where the carina is absent.
The first pair of appendages in Yugoslavian males
(Fig. 3) is very similar to that of Ch. diaphanus carinatus from Greece described by Daday (l9IOb). The
shape of the endopod of the sixth leg is also similar
to the same leg from the population of Ch. diaphanus
carinatus described by Daday (191 Ob) but the Yugoslavian from has a shorter exopod which is, however,
longer than the exopod in the popUlation from Turkey
(Cottarelli & Mura, 1974). On the eleventh pair of
appendages, the endopod is similar to that of Ch.
diaphanus carinatus described by Daday, while the
exopod resembles that of both popUlations. The epipod has a very similar shape to that of the Turkish
population.
The apical cirrus of the penis is curved at the
top and ends in a simple peak (Fig. 2). The basal
apophysis of the penis is characterized by a special
appearance and arrangement of papillae in relation to
that of the subspecies Ch. diaphanus carinatus from
Turkey (Cottarelli & Mura, 1974) and of Ch. salin us
(Daday, 1910) as well as of Ch. diaphanus from Bulgaria (Brtek, 1962), while there are no avialbe data for
Ch. diaphanus pentheri.
Body length of males varies from 14,0 to 16,1 mm;
mean 15,01 mm.
Considering everything mentioned above, it can
be concluded that our form belongs to the diaphanus
group. However, it is characterized by the follow-
Daday (1910). However, in a Bulgarian population
this segment is equipped with a pair of small outgrowths which are smaller than the outgrowths on the
first abdominal segment (Brtek, 1962). Cottarelli &
Mura (1974) also observed a pair of small outgrowths
on this segment in the population of Ch. diaphanus
carinatus from Turkey.
The remaining abdominal segments in females of
the Yugoslavian form have one pair of dorsolateral and one pair of ventrolateral small prolongations
which are covered with fine paillae. These prolongations are, however, missing on the last abdominal
segment. In some specimens, the dorsal prolongations
are less expressed than the ventral ones. These prolongations are especially well developed in adults where
their length may vary. Such prolongations, both on the
dorsal and ventral sides of the abdominal segments, are
not present in any subspecies of Ch. diaphanus or the
populations of this species in Bulgaria and Roumania.
However, in a Turkish population of Ch. diaphanus
carinatus (Cottarelli & Mura, 1974) one pair of small
lateral prolongations is present on the third abdominal
segment; the remaining abdominal segments lack such
prolongations.
The antennae of females of our specimens (Fig. 2)
are similar to those of the Bulgarian population, but
the inner angle is more extended.
The ovisac of our specimen looks like a spindle
and reaches the middle or the end of the fifth abdominal segment (Fig. 1). It resembles the ovisac of the
Bulgarian population.
The body lengths of our females ranged 15,116,1 mm; mean 15,58 mm.
In Yugoslavian C. diaphanus males, the body segments are characterized by the absence of any kind of
lateral outgrowths or prologations.
As for the antennae, the basal article is longer than
the distal one and it can be straight or slightly curved. In
the Bulgarian population (Brtek, 1962) it has a round,
fingerlike protuberance at the distal end of the lower side. Usually the distal article is curved in its first
third, but the remaining two-thirds is straight. In some
specimens, it is very curved in relation to the proximal
article, so that it makes a sharp angle with it. At the
base of the distal article there is a thornlike outgrowth
which is equipped with spines on the upper side. On the
basal part of this outgrowth a small round elevation is
present which is also covered with spines. The apophysis is conical and covered with pappilae at the top. It
is relatively shorter, and its base is wider when com235
pared to Ch. diaphanus carinatus described by Daday
(1910b), but similar to that of Ch. diaphanus carinatus
from Turkey (Cottarelli & Mura, 1974).
On the antennal appendices of the Yugoslavian
males the upper lamella at the base of its outer margine
has three big fingerlike extensions; the distal one is the
longest. The lower lamella is characterized by the presence of the carina. In its structure and in the number
of longer extensions on the base of the upper lamella, the antennal appendices are more similar to those
of Ch. diaphanus carinatus from Turkey than to those
from Greece. When compared to the Bulgarian population our form is characterized by only one row of small
thorns at the base of the marginal spines of the inner
edge of the lower lamella, and by the absence of two
longitudinal rows of spines on the base of upper lamella. Pesta (1921) did not present a detailed illustration
of the antennal appendices in Ch. diaphanus pentheri
but stated that the upper lamella had three longer extensions at the base, whereas the lower lamella had the
same structure as C. diaphanus. Antennal appendices
of the Yugoslavian from differ in having a carina when
compared to Ch. salin us where the carina is absent.
The first pair of appendages in Yugoslavian males
(Fig. 3) is very similar to that of Ch. diaphanus carinatus from Greece described by Daday (l9IOb). The
shape of the endopod of the sixth leg is also similar
to the same leg from the population of Ch. diaphanus
carinatus described by Daday (191 Ob) but the Yugoslavian from has a shorter exopod which is, however,
longer than the exopod in the popUlation from Turkey
(Cottarelli & Mura, 1974). On the eleventh pair of
appendages, the endopod is similar to that of Ch.
diaphanus carinatus described by Daday, while the
exopod resembles that of both popUlations. The epipod has a very similar shape to that of the Turkish
population.
The apical cirrus of the penis is curved at the
top and ends in a simple peak (Fig. 2). The basal
apophysis of the penis is characterized by a special
appearance and arrangement of papillae in relation to
that of the subspecies Ch. diaphanus carinatus from
Turkey (Cottarelli & Mura, 1974) and of Ch. salin us
(Daday, 1910) as well as of Ch. diaphanus from Bulgaria (Brtek, 1962), while there are no avialbe data for
Ch. diaphanus pentheri.
Body length of males varies from 14,0 to 16,1 mm;
mean 15,01 mm.
Considering everything mentioned above, it can
be concluded that our form belongs to the diaphanus
group. However, it is characterized by the follow-