Descriptions of larvae of the tribe Hyperini (Coleoptera: Curculionidae): III. Mature larvae of the genus Donus Jekel, 1865
Author
Skuhrovec, Ji Ř Í
text
Zootaxa
2007
1606
1
28
journal article
10.5281/zenodo.178787
04cbb0d7-14b6-4005-92a9-1a181e2cb604
1175-5326
178787
Donus cyrtus
(Germar, 1821)
Material.
(11 mature larvae), collected in the field:
GREECE
mer., prov. Peloponnesse, Kladas env. (Lakonia),
5 km
NE of Sparti,
251 m
a.s.l.,
10.iv.2005
, J. Skuhrovec leg. (11) (on
Apiaceae
).
Differential diagnosis.
Mandible with three teeth (x
D. crinitus
,
D. reichei
and
Hypera
-species) (
Fig. 25
).
Plbs3
short, about 0.5 x
plbs2
(x
D. oxalidis
) (
Fig. 23
).
Prn
,
prs
and
pds1–4
on thoracic segments hairform (x
D. austerus
,
D. intermedius
,
D. osellai
,
D. reichei
and
D. tesselatus
).
Pds2
on dorsum of meso- and metathorax not the shortest seta (x
D. palumbarius
and
D. tesselatus
).
Pds2
and
pds3
on meso- and metathorax not close each other (x
D. intermedius
,
D. oxalidis
and
D. tesselatus
) (all
Fig. 26
).
Prn
,
prs
and
pds1–4
on thoracic segments and
prs
,
pds1–5
on abdominal segments I–VIII very long (x
D. austerus
,
D. comatus
,
D. crinitus
,
D. osellai
,
D. palumbarius
,
D. reichei
and
D. tesselatus
) (
Figs 26–27
).
Prs
and
pds1–5
on abdominal segments I–VIII hairform (x
D. austerus
,
D. crinitus
,
D. intermedius
,
D. osellai
,
D. palumbarius
,
D. reichei
and
D. tesselatus
). Prodorsum of abdominal segments I–VII only with one seta (
prs
) (x
D. osellai
).
Pds1–5
on abdominal segments I–VII not in line,
pds2
positioned anteriad to
pds3
and
pds4
anteriad to
pds5
(x
D. austerus
,
D. comatus
,
D. crinitus
,
D. osellai
,
D. palumbarius
and
D. reichei
).
Pds4
on dorsum of abdominal segments I–VI not the longest seta (x
D. palumbarius
) (all
Fig. 27
).
Description of mature larva.
COLORATION. Head pale brown maculate, posterior margin of epicranium dark. Dorsal side of body green with slightly white median stripe.
HEAD. Head width
0.97 mm
(
0.85–1.03 mm
), head length
0.89 mm
(
0.78–0.95 mm
) (
Table. 1
). Frontal sutures distinct, slender, anteriorly nearly indistinct. Anterior margin of clypeus weak concave (
Fig. 22
) with weak pigmentation. Labrum dark brown; anterior margin with deep median excision, posterior margin with short and wide median projection (
Fig. 22
). Mandibles with three apically rounded teeth (
Fig. 25
), second tooth largest; first two slightly smaller.
THORAX. Spiracles with oval airtubes oriented posterio-dorsad.
ABDOMEN. Spiracles with oval airtubes oriented posteriad.
CHAETOTAXY.
Head.
Setae hairform.
Des2
minutely shorter than
des4
;
des4
about 0.7 x remaining three setae (
des1, des3, des5
) (
Fig. 22
). Both
les
long,
les1
about 0.7 x
les2
. Both
ves
short.
Fs1
and
fs3
shorter than
fs4
, about 0.7 x;
fs4
about 0.6 x
fs5
(
Fig. 22
). Both
cls
short,
lrms1–3
short (
Fig. 22
). Both
mds
short (
Fig. 25
).
Sts1–2
long,
sts3
shorter than two previous setae, about 0.4 x (
Fig. 23
).
Dms1–6
stout (
Fig. 24
),
vms1–5
minute.
Mxps
very short.
Plbs1–2
long,
plbs3
very short, about 0.4 x
plbs1–2
;
prms
about 0.8 x
plbs2
; both
lig
minute (
Fig. 23
).
Thorax
(
Fig. 26
). Bases of setae strongly pigmented, setae unpigmented. Setae long, hairform.
Prothorax
:
prn1–10
long; approximately of same length.
Vpls1
about 0.5 x
vpls2
. Pedal lobe with four (three to five) setae (
pda
);
pda1–2
long,
pda2
about 0.75 x
pda1
; remaining two (one to three) setae minute.
Msts
minute.
Meso- and metathorax
:
prs
and
pds1–4
very long, approximately of same length. Both
dls
and
ss
long, minutely shorter than
prs
.
Dpls
and
vpls
as long as
dls
. Pedal lobe with four (three to five) setae (
pda
);
pda1– 2
long,
pda2
about 0.75 x
pda1
; remaining two (one to three) setae minute.
Msts
minute.
Abdomen.
Bases of setae strongly pigmented, setae unpigmented. Setae long, hairform.
Abdominal segments I–VIII
(
Fig. 27
):
pds1
,
pds3
and
pds5
approximately in line,
pds2
positioned anteriad to
pds3
and
pds4
anteriad to
pds5
;
prs
and
pds1–5
very long, approximately of the same length.
Sps
long, about 0.5 x
prs
. Both
dpls
long, about 0.7 x
prs
.
Vpls2
very long,
vpls1
minute.
Lsts
long,
msts
minute.
Abdominal segment VII
:
pds3
very long, remaining setae about 0.8 x.
Abdominal segment VIII
:
pds2
positioned more anteriad to
pds3
and
pds4
more anteriad to
pds5
;
pds1, pds3
and
pds5
approximately in line;
pds3
very long, remaining setae about 0.8 x.
Abdominal segment IX
(
Fig. 28
):
ds
2–4
in line;
ds1–4
very long, approximately of same length. Both
ps
long.
Sts1
very short,
sts2
minute.