Three new hoverfly species from Greece (Diptera: Syrphidae)
Author
Radenković, Snežana
0000-0002-7805-9614
Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia. & snezana. radenkovic @ dbe. uns. ac. rs; https: // orcid. org / 0000 - 0002 - 7805 - 9614
snezana.radenkovic@dbe.uns.ac.rs
Author
Likov, Laura
Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia.
Author
Ståhls, Gunilla
0000-0003-0505-0691
Finnish Museum of Natural History, Zoology unit, P. O. Box 17, FI- 00014 University of Helsinki, Finland. gunilla. stahls @ helsinki. fi; https: // orcid. org / 0000 - 0003 - 0505 - 0691
gunilla.stahls@helsinki.fi
Author
Rojo, Santos
0000-0003-2160-9643
Department of Environmental Sciences and Natural Resources, Faculty of Sciences III, Campus of San Vicente, Universidad de Alicante, Spain. & santos. rojo @ ua. es; https: // orcid. org / 0000 - 0003 - 2160 - 9643
santos.rojo@ua.es
Author
Pérez-Bañón, Celeste
0000-0002-2228-7773
Department of Environmental Sciences and Natural Resources, Faculty of Sciences III, Campus of San Vicente, Universidad de Alicante, Spain. & celeste. perez @ ua. es; https: // orcid. org / 0000 - 0002 - 2228 - 7773
celeste.perez@ua.es
Author
Smit, John
European Invertebrate Survey-the Netherlands, PO Box 9517, 2300 RA, Leiden, the Netherlands.
Author
Petanidou, Theodora
0000-0003-1883-0945
Laboratory of Biogeography & Ecology, Department of Geography, University of the Aegean, Mytilene, Greece. t. petanidou @ aegean. gr; https: // orcid. org / 0000 - 0003 - 1883 - 0945
t.petanidou@aegean.gr
Author
Steenis, Wouter Van
Naturalis Biodiversity Center, Vogelmelk 4, 3621 TP Breukelen, The Netherlands.
Author
Vujić, Ante
Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 2, 21000 Novi Sad, Serbia.
text
Zootaxa
2020
2020-08-12
4830
1
103
124
journal article
8757
10.11646/zootaxa.4830.1.4
8f7a492f-1225-4ed5-82cb-ee4592d651a2
1175-5326
4402960
1A443ECB-537E-4060-992D-A83CA4587EA0
Psilota aegeae
Vujić, Ståhls et Smit
sp. n.
ZooBank link:
urn:lsid:zoobank.org:act:
C15AA253-D7AB-4BE7-BAAE-F7617409E9B6
Figs 9
,
10
,
11A, C
Type material.
HOLOTYPE
:
Greece
,
♂
, pinned, in
FSUNS
.
Original
label: “Agiassos,
21.iv.2007
, Sanatorio Site, leg.
Pérez-Bañón C.
& Vujić A.”
.
PARATYPES
:
Greece
:
1♂
+
1♀
, same locality as holotype,
Lesvos
,
Agiassos
, Sanatorio
Site
,
39°06’00.26”N
26°21’25.45”E
,
21.iv.2007
, leg.
C. Pérez-Bañón
,
A. Vujić
(
FSUNS
)
;
1♂
+
2♀
,
Lesvos
,
Agiassos
,
39°06’00.26”N
26°21’25.45”E
,
13.iv.2013
, leg.
A. Vujić
(
FSUNS
)
;
1♂
, Lesvos, Agiassos,
39°06’00.26”N
26°21’25.45”E
,
8.v.2007
, leg.
G. Ståhls
(
MZH
; collection code http://id.luomus.fi/GJ.2051
♀
, Lesvos, Agiassos,
39°06’00.26”N
26°21’25.45”E
,
9.v.2007
, leg.
G. Ståhls
(
MZH
; DNA voucher, collection code http://id.luomus. fi/GJ.2501 and http://id.luomus.fi/GJ.2052
1♂
, Lesvos, Megali Limni,
28.iv.2008
,
39°05’49”N
26°19’55”E
, leg.
G. Ståhls
(
MZH
; http://id.luomus.fi/GJ.2053
1♂
, Lesvos, Megali Limni,
39°05’49”N
26°19’55”E
,
9.v.2009
, leg.
G. Ståhls
(
MZH
; http://id.luomus.fi/GJ.2054
1♂
, Lesvos, Megali Limni,
39°05’49”N
26°19’55”E
,
9.v.2009
, leg.
G. Ståhls
(
MZH
; http://id.luomus.fi/GJ.2055
1♂
, Lesvos, Megali Limni,
1.v.2008
,
39°05’49”N
26°19’55”E
, leg.
G. Ståhls
(
MZH
; DNA voucher http://id.luomus.fi/GJ.2655
1♂
, Lesvos,
30.iv.2008
, leg.
S. Radenković
(
FSUNS
).
Diagnosis.
Psilota aegeae
sp. n.
belongs to the
P. atra
species group, with metafemur in male not swollen (
Fig. 9E
) and epandrium in male genitalia longer than broad, outer surstyle lobe shorter than inner surstyle lobe (
Fig. 11
A–B). Antenna in female implanted in the upper half of the face (
Fig. 10A
), basoflagellomere about 2 times longer than broad, with clearly brown elongated macula basoventrally (
Fig. 10A
); abdomen covered with predominantly whitish pile, while the scutellum covered with whitish pile intermixed with the black ones (
Fig. 10
C–D).
Based on male genitalia characters,
Psilota aegeae
sp. n.
is the most similar to
Psilota atra
, but differs as follows: in
P. aegeae
sp. n.
epandrium 1.2 times longer than broad, while in
P. atra
almost 2 times (
Fig. 11
A–B), furthermore there are differences in morphological characters of other body parts as well: basoflagellomere in
P. aegeae
sp. n.
longer (about 2 times longer than broad) than in
P. atra
(1.5 times); cell R on wing in
P. aegeae
sp. n.
is hyaline compared to
P. atra
where this cell is distinctly yellow; in
P. aegeae
sp. n.
pile on tergum 2 mostly pale-yellow, and much longer on lateral margins of all terga with regard to
P. atra
(pile on all terga mostly black and much shorter on lateral margin); tergum 2 with less developed transverse grooves in
P. aegeae
sp. n.
which are distinctively developed in
P. atra
.
The female of
P. aegeae
sp. n.
can be separated from all other
Psilota
species by the combination of the following characters: antennae implanted in the upper half of the face; anepisternum covered with white pile and metafemur not swollen. From the related
P. atra
, it differs by the color of the pilosity: pale-yellow on frons in
P. aegeae
sp. n.
(in some specimens the pile on frons are pale-yellow in anterior part and black in posterior part), while black in
P. atra
; mostly pale-yellow on scutum in
P. aegeae
sp. n.
, while black in
P. atra
; white on metathoracic pleuron in
P. aegeae
sp. n.
, while mixed black and pale-yellow in
P. atra
.
Molecular data:
The clustering of the mtDNA COI barcode sequences of the included
Psilota
species and specimens is shown in
Fig. 12
. The uncorrected sequence divergences between
Psilota aegeae
sp. n.
and included
Psilota
spp. ranged between 3.3–4.4%.
FIGURE 9.
Male of
Psilota aegeae
sp. n.
A
head, lateral view,
B
head, dorsal view,
C
thorax, lateral view,
D
abdomen, dorsal view,
E
metafemur, ventral view. Scale bar, 0.5 mm.
FIGURE 10.
Female of
Psilota aegeae
sp. n.
A
head, lateral view,
B
head, dorsal view,
C
thorax, lateral view,
D
abdomen, dorsal view,
E
hind femur, lateral view. Scale bar, 0.5 mm.
FIGURE 11.
Male genitalia
A, C
Psilota aegeae
sp. n.
,
B, D
Psilota atra
,
E
Psilota anthracina
.
A–B lateral view, C–E dorsal view. ae—aedeagus, ce—cercus, ep—epandrium, ist—inner surstyle lobe, hp—hypandrium, ost—outer surstyle lobe, sl—su-perior lobe. Scale bar, 1 mm.
Description. MALE.
Head
(
Fig. 9
A–B). Antennae elongated, basoflagellomere about 2 times longer than broad, rounded at the tip, mostly dark-brown, except small light-brown basoventral inner area; face and frons black, mostly shiny, with scarce, indistinct dark-brown/gray microtrichia, covered with black pile, as well as vertex; face with a bare vitta, from the base of antenna to upper margin of mouth; genae and ventral part of mouth edge without pile; eyes densely covered with long yellowish pile; eye contiguity about as 2 times longer than ocellar triangle; ocellar triangle isosceles, covered with very long black pile; occiput very narrow, covered with short black pile.
Thorax
(
Fig. 9C, E
). Entirely black, with fine punctuation, covered with black pile somewhat wavy at the top; pile on scutum and scutellum clearly of two different lengths (
Fig. 9C
); scutellum with a row of long pile-like bristles at the posterior margin; subscutellar fringe composed of short black pile; metathoracic pleuron mostly shiny, predominantly covered with black pile (except whitish ones at grey microtrichose anterior end of anterior anepisternum), the longer pile somewhat wavy at the top; wings hyaline, veins clearly yellow at the base; pterostigma yellow; wing covered with microtrichia, except basal half of the cell R almost bare; calypteres yellowish, with some brown pile at the posterodistal margin of fringe, the rest yellow; halteres yellow-brown; legs entirely black, except apex of femora and base of the tibiae slightly lighter; all legs covered with mixed pale and black pile; metafemur thin, about 4.7 times longer than wide; the apical half of the metafemur ventrally with a shallow groove, formed by two rows of mixed short and long black spines (
Fig. 9E
); the ventral surface of the tarsi with the short yellow pile.
Abdomen
(
Fig. 9D
). Entirely black, predominantly shining; tergum 2 mostly covered with yellowish pile, only the posterior half with some black pile; terga 3 and 4 usually almost entirely covered with black pile, except some yellowish pile on lateral margins of both terga and anterior end of tergum 4 (area with yellowish pile on tergum 4 can be larger); all pile on the abdomen erect; sterna black, shiny, covered with long and erect whitish pile wavy at the top.
Male genitalia
(
Fig. 11A, C
). Epandrium compactly built, rectangular, longer than broad; inner surstyle lobe elongated, broad apically; outer surstyle lobe narrow and curved, shorter than inner surstyle lobe; cercus very elongated, rectangular (
Fig. 11A
); height of narrowest part of epandrium in dorsal view small (
Fig. 11C
). Superior lobe fused with hypandrium, narrow with tapering tip; aedeagus with a serrate ventral margin and pointed apex (
Fig. 11A
).
FIGURE 12.
Gene tree of 5’- fragment of the mitochondrial cytochrome c oxidase subunit I gene (COI).
FEMALE
(
Fig. 10
). Similar to the male except for the following characters: face, frons and larger part of occiput covered with pale-yellow/whitish pile (
Fig. 10
A–B); basoflagellomere with a clear elongated brown to reddish macula basoventrally, developed on both sides of basoflagellomere, inner and outer (
Fig. 10A
); pile on the eyes much shorter than in males; pile on scutum all pale-yellow, except at the wing basis, postalar callus and on posterior margin of scutellum mixed white and black pile (
Fig. 10C
); the metathoracic pleuron entirely covered with pale-yellow pile; legs and abdomen predominantly covered with whitish pile (
Fig. 10D, E
).
Etymology.
The specific epithet is the genitive case of the Greek name Aegea (to which the
Aegean
Sea owes its name) and refers to its origin, an island in the
Aegean
Sea.
Distribution
. Only known from Lesvos Island (
Greece
) (
Fig. 6
). Probably local endemic.
Biology.
Adults were collected in open areas within Mediterranean pine forest
Pinus brutia
Tenore
(
255–355m
above sea level). They were visiting flowers of
Smirnium perfoliatum
L. Flight period is from April to beginning of May.