Some remarks on rare and new Palaearctic species of the genus Zodion Latreille (Diptera: Conopidae)
Author
Stuke, Jens-Hermann
text
Zootaxa
2014
3860
3
235
252
journal article
10.11646/zootaxa.3860.3.3
addd08c7-e72f-4738-aaa6-56e232378898
1175-5326
252422
F89EB353-25D5-4020-B445-67364DB4CEC5
Zodion asiaticum
Becker, 1922
(figs 10–11)
Material examined:
Holotype
(♂): (1) "Alai Geb. /
VII. 1903
" [hand written]; (2) "50816"; (3) "
Typus
" [red]; (4) "
asiaticum
/ Beck. / det. Becker" [first two lines hand written]. The specimen is deposited in the Museum für Naturkunde der Humboldt-Universität,
Germany
, Berlin (
ZMHB
).
FIGURES 7–9.
Zodion andersoni
Kröber
(♂ from Arkhangay).
1
. Lateral view of hypandrium and phallus.
2
. Frontal view of distiphallus.
3
. Lateral view of tip of hypandrium and phallus. Abbreviations: dp, distiphallus; ea, ejaculatory apodeme; ed, ejaculatory duct; epp, epiphallus; hyb, hypandrial bridge; hyr, hypandrial bars; hys, anteriorly directed sheath of hypandrium; ldp, lateral sclerotisation of distiphallus; mdp, medial sclerotisation of distiphallus; pa, phallus apodeme; po, postgonite; poe, postgonite evagination; sps, sperm sac.
FIGURES 10–11.
Zodion asiaticum
Becker
(♀ holotype).
10
. Lateral view of habitus.
11
. Wing.
When
Becker (1922)
described
Z. asiaticum
he pointed out that the most important character to distinguish his new species from other
Zodion
species was the milky clouded wing ("milchig getrübten Flügel"). This character was the only one used by
Kröber (1936)
to distinguish
Z. asiaticum
from
Z. cinereum
.
Zimina (2000)
distinguished
Z. asiaticum
from
Z. cinereum
by the lack of spots at the bases of the hairs on the abdomen and thorax, and the denser and thinner hairs. These characters do not accord with the original description, however, in which
Becker (1922)
stated "die sonst hervortretende Fleckung des Rückens ist sehr schwach ausgebildet, ebenso fehlt die Behaarung fast ganz, am Schildrande stehen nur 4 zarte Härchen" and "Hinterleib aschgrau, fast nackt mit sehr geringer Punktierung". The indistinct black spots on the apical segments of the abdomen can be explained by the condition of the abdomen of the
type
specimen, which has become wet so that the dusting is not easy to see (fig. 10).
I have compared the
holotype
of
Z. asiaticum
with specimens of
Z. cinereum
and could not find any characters to distinguish the two. The white veins of the wing which give a milky-white impression (fig. 11) are in reality only very light veins, and the pattern of the wing colouration otherwise resembles
Z. cinereum
completely. Therefore
Z. asiaticum
Becker, 1922
should be treated as a junior synonym of
Z. cinereum
(
Fabricius, 1794
)
(syn. nov.).