The genus Euodynerus Dalla Torre in Europe and the Maghreb (Hymenoptera: Vespidae: Eumeninae)
Author
Selis, Marco
Via dei Tarquini, 22 - 01100 Viterbo, Italy
Author
Fateryga, Alexander V.
T. I. Vyazemsky Karadag Scientific Station-Nature Reserve of RAS-Branch of A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Nauki Str. 24, Kurortnoye, 298188 Feodosiya, Russia
Author
Cilia, Giovanni
CREA Research Centre for Agriculture and Environment (CREA-AA), Via di Corticella 133, 40128, Bologna, Italy
text
Zootaxa
2024
2024-11-08
5537
2
151
194
http://dx.doi.org/10.11646/zootaxa.5537.2.1
journal article
10.11646/zootaxa.5537.2.1
1175-5326
14239439
8A7AF43F-0E83-48A0-950E-0716CDC753A6
Euodynerus
(
Pareuodynerus
)
rubrosignatus
Gusenleitner, 1984
,
stat. nov.
(
Figs 13K–M
;
15W
)
Euodynerus quadrifasciatus rubrosignatus
Gusenleitner, 1984: 165
, 168,
♀
,
♂
(in subgenus
Pareuodynerus
)
—
“Cyrenaica, Schachhart [Shahhat],
650 m
” (
holotype
female OLML [examined]).
Euodynerus notatus cyrenaicus
Giordani Soika, 1986: 116
,
♀
[erroneously reported as male]
—
“
Cirenaica:
R. Uff. Agrario
” (
holotype
MSNVE [examined]).
Syn. nov.
FIGURE 13. A–J
,
Euodynerus quadrifasciatus
(Fabricius)
.
A
, female from Estonia.
B
,
H
, female from Italy.
C
, female from Crimea, Russia.
D
,
F
, male from China (
E. quadrifasciatus atripes
Giordani Soika
,
syn. nov.
).
E
, male from Italy.
G
, female from Khabarovsk Territory, Russia.
I–J
, male from Turkey (paratype of
E. quadrifasciatus rufipes
Gusenleitner
,
syn. nov.
).
K–N
,
E. rubrosignatus
Gusenleitner
,
stat. nov.
, female from Libya.
K–L
, paratype of
E. quadrifasciatus rubrosignatus
Gusenleitner.
M
–N
, holotype of
E. notatus cyrenaicus
Giordani Soika
,
syn. nov.
FIGURE 14.
Male genitalia, from left to right: aedeagus in ventral view, aedeagus in lateral view, digitus+volsella.
A
,
Euodynerus bidentatus
(Lepeletier)
.
B
,
E. caspicus
(Morawitz)
.
C
,
E. curictensis
Blüthgen.
D
,
E. dantici
(Rossi)
.
E
,
E. disconotatus
(Lichtenstein)
.
F
,
E. fastidiosus
(de Saussure)
.
G
,
E. hellenicus
Blüthgen.
H
,
E. semisaecularis
(Dalla Torre)
.
I
,
E. variegatus
(Fabricius)
.
J
,
E. velutinus
Blüthgen.
K
,
E. bidentoides
(Giordani Soika)
.
L
,
E. notatus
(Jurine)
.
M
,
E. posticus
(Herrich-Schaeffer)
.
N
,
E. quadrifasciatus
(Fabricius)
.
FIGURE 15. A–E
, S2 in lateral view.
F–I
, propodeum in posterodorsal view (arrowheads indicating dorsal carinae).
J–O
, vestiture of mesosoma.
P–Q
, metanotum in anterior view.
R–T
, male hind tarsus in dorsal view.
U–Y
, female head in dorsal view (arrowhead in Y indicating foveae not placed in depression).
A
,
F
,
J
,
Euodynerus bidentiformis
(Giordani Soika)
.
B
,
V
,
E. bidentoides
(Giordani Soika)
.
C
,
K
,
E. quadrifasciatus
(Fabricius)
.
D
,
E. caspicus
(Morawitz)
.
E
,
H
,
M
,
T
,
E. dantici
(Rossi)
.
G
,
P
,
S
,
U
,
E. posticus
(Herrich-Schaeffer)
.
I
,
Y
,
E. disconotatus
(Lichtenstein)
.
L
,
R
,
E. notatus
(Jurine)
.
N
,
E. curictensis
Blüthgen.
O
,
E. semisaecularis
(Dalla Torre)
.
Q
,
X
,
E. fastidiosus
(de Saussure)
.
W
,
E. rubrosignatus
Gusenleitner.
FIGURE 16. A–B
, male mandible in frontal view (arrowhead indicating normal or modified tooth).
C–G
, tegula in dorsal view.
H–I
, apex of T2 in dorsal view (arrowhead indicating lamellar margin).
J–K
, male hind femur in frontal view (arrowhead in J indicating basal expansion).
L–N
, apex of male metasoma in lateral view.
A
,
Euodynerus notatus
(Jurine)
.
B
,
E. posticus
(Herrich-Schaeffer)
.
C
,
E. caspicus
(Morawitz)
.
D
,
H
,
E. hellenicus
Blüthgen.
E
,
I
,
E. dantici
(Rossi)
.
F
,
L
,
E. fastidiosus
(de Saussure)
.
G
,
N
,
E. disconotatus
(Lichtenstein)
.
J
,
E. velutinus
Blüthgen.
K
,
E. curictensis
Blüthgen.
M
,
E. semisaecularis
(Dalla Torre)
.
Distribution.
Libya
, currently known only for the area of Shahhat (
Gusenleitner 1984
;
Giordani Soika 1986
).
Notes.
Both
Gusenleitner (1984)
and
Giordani Soika (1986)
independently described this taxon, respectively as a subspecies of
E. quadrifasciatus
and
E. notatus
, differentiating it only by the black pattern with a few reddish markings. Comparison of the
holotype
of
E. notatus cyrenaicus
(
Figs 13M, N
) with a
paratype
and pictures of the
holotype
of
E. quadrifasciatus rubrosignatus
(
Figs 13K, L
), all collected in Shahhat, showed very slight differences in pattern, apical margin of clypeus and length of setosity on head and mesosoma, all compatible with intraspecific variability; the synonymy between the two taxa comes naturally and is confirmed by DNA barcoding, that does not show the slightest genetic distance between the two sequenced specimens. Genetic data (
Fig. 10
) also show that this taxon is clearly more related to
E. notatus
(average distance of 9.45%) rather than to
E. quadrifasciatus
(14.89%), a relationship confirmed by two morphological characters: length of setae on head and mesosoma and modified area of the female vertex. This taxon is however readily distinguished from both
E. notatus
and
E. quadrifasciatus
by the shape of S2, that is more strongly convex basally rather than evenly convex from base to apex. Taking into consideration morphological and genetic differences, constant differences in pattern and geographic isolation, it becomes evident that
E. rubrosignatus
deserves to be raised to species-level, representing a further case of Libyan endemism characterized by the reduced reddish pattern.