The genus Sicoderus Vanin 1986 (Coleoptera: Curculionidae: Curculioninae: Erodiscini) in the West Indies
Author
Anderson, Robert S.
text
Zootaxa
2018
2018-10-10
4497
3
301
345
journal article
29174
10.11646/zootaxa.4497.3.1
55770274-cac7-4dde-871a-6c4cf42522c5
1175-5326
1454868
FED8ED2E-510F-4596-A31B-59E6DF73919C
Sicoderus bipunctiventris
Anderson
,
n. sp.
(
Figures 13–14, 14a
,
21
. Map 1)
http://zoobank.org/urn:lsid:zoobank.org:act:EE5360CF-2945-4FC5-8FFD-28686738F54E
Description:
Length male, 3.0–
3.5 mm
; female, 2.8–3.0 mm. Integument black, shining. Eyes rather widely separated by a distance slightly less than width of rostrum at midlength. Rostrum 1.09–1.15x length elytra in male; 1.09–1.28x length elytra in female. Antennal insertion at about apical 2/
5 in
male, slightly before middle in female. Prothorax constricted anteriorly, globose, widest at about middle; punctures dense, large and deep, subcontiguous, forming striolae on disc and laterally on flanks; erect setae absent. Elytra in dorsal view widest at about midlength, lateral margins convergent both anteriorly and posteriorly; humeri fully reduced, not at all angulate; setae absent. Strial punctures evident, large, deep; striae deeply impressed throughout length. Membranous wings absent. Abdominal ventrite 1 of male flat basally, in middle near posterior margin with two very small, approximate swellings, each with minute patch of setosity at tip; of female, uniformly convex in middle near posterior margin. Ventrite 2 of both sexes with two large, deep pits on steeply declivious posterior face (fig. 14a). Ventrite 5 of male with rounded very shallow impression in apical one-half; of female, uniformly convex. Legs with all femora simple, ventral margin lacking any trace of tooth; tarsal claws simple, no basal tooth. Aedeagus (fig. 21) subequal in width towards apex and base, internal sac with pair of elongate basal sclerites subparallel, joined anteriorly as a fine arch, each with distinct basal projection. Female not dissected.
Material
examined:
11 males
,
8 females
.
Holotype
male (
CMNC
), labelled
CUBA
:
Cienfuegos Province
,
Parque
Nacional Pico
San Juan
, road, 21.98542 -80.14873,
1026m
,
19.v.2013
,
A. Deler Hernandez
, 2013-025, hardwood forest litter
. Paratypes. Data as holotype (2 males, 1 female; CMNC).
Parque Nacional Pico
San Juan
, road, 21.98542 -80.14873,
1026m
,
19.v.2013
,
R.Anderson
, 2013-023, hardwood forest litter (
3 males
,
1 female
;
CMNC
,
WIBF
)
.
Parque Nacional Pico
San Juan
, road, 21.98495 -80.15188,
934m
,
19.v.2013
,
R.Anderson
, 2013- 0 21, hardwood forest litter (
1 male
,
1 female
;
CMNC
)
.
Parque Nacional Pico
San Juan
, road, 21.98812 -80.14632,
1086m
,
19.v.2013
,
R.Anderson
, 2013-022X, hand collections (
1 female
;
CMNC
)
.
Parque Nacional Pico
San Juan
, road, 21.98812 -80.14632,
1086m
,
19.v.2013
,
F. Cala Riquelme
, 2013-024, elfin forest litter (
2 females
;
CMNC
)
.
Mayari
,
4 km
E., 21.95754 -80.09966,
912m
,
18.v.2013
,
R.Anderson
, 2013-019, hardwood forest litter (
1 male
;
CMNC
)
.
Mayari
,
2 km
E., 21.96651 -80.11497,
842m
,
18.v.2013
,
R.Anderson
, 2013-017, hardwood forest litter (
1 male
;
CMNC
)
.
Mayari
,
1 km
E., 21.97114 -80.12172,
866m
,
18.v.2013
,
R.Anderson
, 2013-018, karst forest litter (
1 male
;
BMNH
)
.
Mayari
,
1.5 km
E., 21.97100 -80.11644,
866m
,
18.v.2013
,
R.Anderson
, 2013-020x, hardwood forest, hand collections (
2 females
;
CMNC
,
FSCA
)
.
Mayari
,
2.5 km
E.,
21°58’15.6”N
,
80°07’05.81”W
,
860m
,
18.v.2013
,
G. Zhang
, CB-13, L-20 (
1 male
;
ASUHIC
)
.
Derivation of species name:
This species is named ‘bipunctiventris’ after the two large, deep pits on the posterior face of abdominal ventrite 2 (fig. 14a).
Natural History:
Adults were collected in elfin and hardwood forest litter (
842–1086 m
) and beating vegetation.
Comments:
The two large, deep pits on the posterior face of abdominal ventrite 2 of both sexes (fig. 14a) is distinctive for this species.