A taxonomic monograph of the Middle American leaf-litter inhabiting weevil genus Theognete Champion (Coleoptera: Curculionidae; Molytinae; Lymantini) 2458
Author
Anderson, Robert S.
text
Zootaxa
2010
2010-05-14
2458
1
1
127
https://biotaxa.org/Zootaxa/article/view/zootaxa.2458.1.1
journal article
10.11646/zootaxa.2458.1.1
11755334
5316658
7E42061C-9D11-49C5-8737-CEED0864E699
12.
Theognete caviventris
Anderson
,
new species
(
Figures 6
,
59
,
64
,
68
)
Diagnosis
. Size. Length, male,
4.05–4.61mm
; female,
3.99–4.66mm
. Width, male,
2.25–2.70mm
; female,
2.02–2.53mm
. As for
T. denticulata
except elytra with disk convex, not flattened, and with striae not impressed; abdomen with ventrite 1 sloping anteriad but not impressed or tuberculate, ventrite 5 with pair of large basal punctures and median row of 4 smaller punctures, the middle 2 confluent and appearing as a transverse impression, no apical excavation; hind tibiae without teeth. Aedeagus as in
Fig. 64
.
Geographical distribution
.
México
(
Hidalgo
,
Puebla
,
Querétaro
,
San Luis Potosí
), the most extensive range of any
Theognete
species
.
Natural history
. Collected from berlese extraction of cloud forest and mixed oak forest leaf litter at elevations ranging from
1050–1700m
;
one specimen
taken on wood chips of cut oak.
Derivation of specific name
. Named from the Latin
cavu
, meaning hole, and
venter
, meaning belly, in reference to the deeply excavated mesosternum and metasternum.
Material examined
.
32♂
,
26♀♀
(
CMNC
,
CWOB
,
ECOS
,
FMNH
,
MCZC
,
USNM
)
.
Holotype
♂
(
CMNC
)
:
MÉXICO
:
Hidalgo
.
1189m
,
55 km
N.E. Jacala
, 4.VI.87,
R. Anderson
, berlese cloud forest litter
/
HOLOTYPE
♂
,
Theognete caviventris
sp. nov.
,
R.S. Anderson. Aedeagus
extracted.
Paratypes
:
MÉXICO
.
Unspecified
locality,
Orchid
plants, 3-3.52, 52-2721 (
1♂
USNM
)
.
Hidalgo
.
Chapalhuacán
(
6.7 mi.
W
.)
,
c.
1700m
,
16.VII.1969
, S. & J.
Peck
, cloud forest litter, BER170 (
1♀
CWOB
)
.
Chapalhuacán
(
4 mi.
S.
W
.)
,
3500',
5.VII.1976
, A.
Newton
, berlese cloud forest leaf litter (
1♀
MCZC
)
.
Chapalhuacán
(
6.6 mi.
S.
W
.)
,
3900',
5. VII. 1976
, A.
Newton
, berlese cloud forest leaf litter (
4♂
,
3♀♀
MCZC
)
.
Jacala
(
55 km
N.E.),
1189m
,
4.VI.1987
,
R. Anderson
, berlese cloud forest litter (
2♂
,
3♀♀
CMNC
,
ECOS
)
.
Tlanchinol
(
2.8 mi.
N.), 5200',
9–11.VII.1973
,
A. Newton
, berlese cloud forest leaf litter (
2♂
,
3♀♀
MCZC
)
.
9–14.VII.1973
, A.
Newton
, on wood chips of cut oak tree (
1♀
MCZC
)
.
Tlanchinol
(
2.4 mi.
N. Hwy
105), 5000',
9.V.1983
, C.
W
. &
L. O'Brien
&
G.B. Marshall
, berlese sifted cloud forest litter (
1♀
CWOB
)
.
Tlanchinol
(
2.7 mi.
N. Hwy
105), 5000',
14.VI.1983
, C.
W
. &
L. O'Brien
&
G.B. Marshall
, berlese sifted cloud forest litter (
2♀♀
CWOB
)
.
15.VI.1983
, C.
W
. & L.
O'Brien
&
G.B. Marshall
, berlese sifted cloud forest litter (
2♂
,
3♀♀
CWOB
)
.
16.VI.1983
, C.
W
. & L.
O'Brien
&
G.B. Marshall
, berlese sifted cloud forest litter (
1♂
CWOB
)
.
17.VI.1983
, C.
W
. & L.
O'Brien
&
G.B. Marshall
, berlese sifted cloud forest litter (
2♂
CWOB
)
.
Tlanchinol
(
2.4 mi.
N.E.), 4500',
14.VI.1983
,
S. & J. Peck
, cloud forest litter (
2♂
,
1♀
CMNC
)
.
Tlanchinol
(
43 km
S.
W
.
Huejutla
),
1490m
,
1.VIII.1983
,
S. & J. Peck
, cloud forest litter (
5♂
,
2♀♀
CMNC
)
.
Puebla
.
Huauchinango
(
4.4 mi.
S.
W
.)
,
1700m
,
25–28.VII.1969
,
Leg.
S. & J.
Peck
,
moss ravine oak forest malt syrup bait trap
, #523-4 (
1♀
FMNH
)
.
Xicotepec de Juarez
(
1.2 mi.
N.), 3500',
17.VI.1983
, R.
Anderson
, cloud/ mixed oak forest (
5♂
,
1♀
CMNC
,
ECOS
)
.
Querétaro
.
Municipio Pinal de Amoles
,
Huasquilico
,
21°9.6'N
99°34.39'W
,
1760m
,
24.IX.2004
, R.
Jones
, leaf litter (
1♂
CMNC
)
.
San Luis Potosí
.
Xilitla
(
14 mi.
W
.)
,
4800',
29.VI.1973
, A.
Newton
, leaf and log litter non-coniferous
Liquidambar
forest
(
3♂
,
2♀♀
MCZC
)
.
Xilitla
(
20 km
W
.)
,
1600m
,
12.VI.1983
, S. & J.
Peck
, cloud forest litter (
2♂
,
1♀
CMNC
)
.
Chorological relationships
. In various parts of its range sympatric with
T. gracilis
,
T. tuberosa
,
T. hesmos
,
T. grimblyae
,
T. minuta
,
T. harbini
,
T. distenta
,
T. chauliothorax
and
T. fulgida
.