The genus Syzeton Blackburn, 1891 (Coleoptera, Aderidae) in the United States of America
Author
Gompel, Nicolas
0000-0003-3358-7963
Ludwig-Maximilians-Universität München, Fakultät für Biologie, Biozentrum, Grosshaderner Str. 2, 82152 Planegg-Martinsried, Germany. gompel @ biologie. uni-muenchen. de; https: // orcid. org / 0000 - 0003 - 3358 - 7963
gompel@biologie.uni-muenchen.de
text
Zootaxa
2022
2022-07-07
5162
3
243
267
journal article
93650
10.11646/zootaxa.5162.3.3
460739ae-f695-4a2f-9da3-ff09730b73dd
1175-5326
6810142
38EE4183-B7A3-44AC-9441-A4EE7E32159E
Syzeton ouachitanus
(
Werner, 1990
)
,
comb. nov.
(
Figures 1b, d
;
2a, m
;
3a
;
4h
;
5a
)
Zonantes ouachitanus
Werner, 1990: 226
;
Holotype
:
Oklahoma
:
Latimer Co.
(
USNM
) (
Werner, 1990
)
Zonantes mississippiensis
Werner, 1990: 227
;
Holotype
:
Mississippi
, Hancock Co., Logtown (USNM) (
Werner, 1990
),
syn. nov.
Status of
Zonantes mississippiensis
Werner, 1990
.
I examined one of the two
two females
from
Mississippi
, on which Werner based his original description. This single
♀
paratype
(Collection E. G. Riley), which I re-prepared, is very similar in its external morphology (outside of dimorphic characters), to most
Syzeton ouachitanus
(
Werner, 1990
)
specimens that I have observed. In most specimens, notably, the elytra are pale brown, with a hardly visible transversal darkening in their posterior half (
Figure 1a
, not mentioned in the key because too subtle). Only some specimens of
S. ouachitanus
(
Werner, 1990
)
have a more pronounced transversal midband on the elytra (
Figure
1m
). In addition, in this single
♀
paratype
of
Zonantes mississippiensis
Werner, 1990
, the apex of the last visible tergum corresponds precisely to the description given by
Werner (1990)
for the females of
S. ouachitanus
(
Werner, 1990
)
, with 5–6 teeth. It is surprising that Werner gave no details on the last visible tergum for the
two females
of
Zonantes mississippiensis
Werner, 1990
that he used for his original description. I therefore propose the following synonymy:
Zonantes mississippiensis
Werner, 1990
=
Syzeton ouachitanus
(
Werner, 1990
)
,
syn. nov.
Because the two taxa were described in the same paper, the question of priority arises. Leaning on ICZN Art. 24.2 (
International Commission on Zoological Nomenclature, 1999
), I decided to maintain
Syzeton ouachitanus
(
Werner, 1990
)
as the senior name for two reasons. First, its description precedes that of
Zonantes mississippiensis
Werner,
1990
in Werner’s paper. Second. in the interest of nomenclature stability, as
Zonantes mississippiensis
Werner, 1990
is described from only
2 females
and much less information is available for this taxon.
FIGURE 1
. Morphological characteristics of the genus
Syzeton
Blackburn, 1991
. a, uniseriate elytral pubescence (example,
Syzeton nubifer
(LeConte, 1878))
. b, bean-shaped transversal head in dorsal view (example
Syzeton ouachitanus
(
Werner, 1990
))
. c, pronotum shape in dorsal view, with anterior margin made of segments converging toward head in an obtuse angle (example
Syzeton floridanus
(
Werner, 1990
))
. d, pedicel (antennomere 2) shorter than antennomere 3 (examples, left,
Syzeton ouachitanus
(
Werner, 1990
)
and right,
Syzeton nubifer
(LeConte, 1878))
. e, last abdominal ventrite of ♀ with a medial pit (example
Syzeton fasciatus
(Melsheimer 1846))
. f, enlargement of framed region in panel e, arrow pointing to pit. g, right midtarsus with arrowheads pointing to ventral brush (example
Syzeton pallidus
(
Werner, 1990
))
. h, right hind femora in ventral view, white frame centered on excavation (example
Syzeton pallidus
(
Werner, 1990
))
. i, enlargement of framed region in panel h, arrow pointing to excavation. scale bars: 100 µm.
Material examined.
United States
.
Florida
: Liberty County, Torreya
State Park
, (
40 m
) [
30°33’ N
84°56’ W
],
6.V.2007
,
M. C. Thomas
leg. (
1 ♂
,
NGPC
)
;
Sarasota County
,
Myakka River State Park
, FFA/N.
Plot
, (
10 m
) [
27°12’ N
82°14’ W
],
2.XI.2000
,
funnel trap
/
turpentine trap
,
J. L. Foltz
leg. (
1 ♀
,
FSCA
)
;
Suwannee County
, F-49 [
30°14’ N
82°59’ W
],
2.IX.1976
, at river,
black light trap
,
J. R. Wiley
leg. (
2 ♀♀
,
FSCA
)
.
Georgia
:
Clarke County
,
Athens
,
Whitehall Forest
, (
210 m
) [
33°53’ N
83°21’ W
],
13.IX.1978
,
black light trap
,
R. Turnbow
leg. (
1 ♂
,
FSCA
)
.
Mississippi
:
Hancock County
, I-10 rest area and
Welcome Center
, (
5 m
) [
30°18’47” N
89°35’59” W
],
17.VI.1982
,
E. G. Riley
leg. (
1 ♀
paratype
of
Zonantes mississippiensis
Werner, 1990
,
ERPC
)
.
Oklahoma
:
Latimer County
[
34°50’ N
95°18’ W
], UV,.
VIII.1998
,
K. Stephan
leg. (
1 sp.
,
TAMU
)
.
Texas
:
Brazos County
,
5 km
SW Wellborn
, (
80 m
) [
30°30’ N
96°20’ W
], at lights,
22.VIII.2016
,
V. Belov
leg. (
1 ♂
,
NGPC
)
;
at lights,
12.IX.2016
,
V. Belov
leg. (
1 sp.
,
VBPC
)
;
at lights,
9.IV.2017
,
V. Belov
leg. (
1 sp.
,
VBPC
)
;
at lights,
16.IV.2017
,
V. Belov
leg. (
1 ♂
,
NGPC
)
;
at lights,
13.V.2017
,
V. Belov
leg. (
2 sp.
,
VBPC
)
;
at lights,
20.VI.2017
,
V. Belov
leg. (
2 sp.
,
VBPC
)
;
at lights,
22.VI.2020
,
V. Belov
leg. (
1 ♂
,
VBPC
)
;
at lights,
12.VII.2020
,
V. Belov
leg. (
1 ♀
,
NGPC
)
;
at lights,
19.VII.2020
,
V. Belov
leg. (
1 ♂
,
VBPC
)
;
at lights,
24.VIII.2020
,
V. Belov
leg. (
1 ♂
,
VBPC
)
;
San Patricio County
,
Welder Wildlife Refuge
[
28°07’ N
97°19’ W
], at light,
25.VI.1981
,
J. C. Schaffner
leg. (
1 ♂
,
TAMU
)
.
Distribution.
United States
:
Texas
to
Florida
, North to
Oklahoma
(extended from
Werner (1990))
.