Omolabus Jekel in north and central America (Coleoptera: Attelabidae)
Author
HAMILTON, ROBERT W.
text
Zootaxa
2005
2005-05-19
986
1
1
60
http://dx.doi.org/10.11646/zootaxa.986.1.1
journal article
10.11646/zootaxa.986.1.1
7e37edb4-214d-4b5f-ba6f-82871e6f8bb9
11755334
5056385
Omolabus fasciventris
Hamilton
,
new species
(
Figs. 1
,
16
, 53, 54, 55 & 56)
Type
locality.
Republic of Panama
, Canal Zone.
Type
holder.
The
United States
National Museum (
USNM
)
Type
material.
The
type
series consists of
16 specimens
. The
holotype
male is labeled as follows:
Panama
: Canal Zone,
3 mi
NW Gamboa,
27ii1970
,
9°09'N
79°43'W
, HA Hespenheide
(
CHAH
)
. The allotype female is labeled as follows:
Panama
: Canal Zone,
3.5 km
WNW Paraiso,
20vii1970
,
9°02'N
79°50'W
, HA Hespenheide
(
CHAH
)
. The sex and label data of the
paratypes
are as follows:
Panama
:
2 males
, Canal Zone, Barro Colorado Is.,
18vi1977
,
9°10'N
79°50'W
, HA Hespenheide;
1 male
(same except
12vii1977
);
1 male
&
1 female
(same as allotype);
1 male
(same as
holotype
except
29 ix1969
)
(
CHAH
)
;
1 male
,
Panama
: Zona Del Canal, Barro Colorado
Island
,
13 March 1985
, sitting on leaf of
Uncatia
(
Rubiaceae
), A Aiello;
1 female
,
Panama
, C. Z. [Canal Zone],
4 km
E Margarita,
22 June 1974
, on foliage of
Lacistema aggregatum
, H Stockwell
;
1 male
&
1 female
(same except no host plant label);
1 female
,
Panama
, C. Z.,
5 mi
NW Gamboa,
6 April 1976
,
Y
Lubin, Canopy fog
(
HPSC
)
;
1 male
, Cabima [?], Pan. [
Panama
],
May 22 1911
, A Busck;
1 female
, Canal Zone, 5.0 mi NW Gamboa,
23–24 Oct 1975
,
9°10'00"N
79°45'00"W
,
100 m
, canopy fogging experiment in
Luehea seemannii
, pyrethrin fog, sample 5B
24 x 1975
(
USNM
)
;
1 female
,
Panama
, Gamboa, Pipeline rd.,
11 May 1995
, leg. F Oedegaard
(
FODC
)
.
Size range
Male
: 4.0 x
1.8 mm
to 4.7 x
2.2 mm
; Female: 4.0 x
1.9 mm
to 4.7 x
2.2 mm
.
Description. Body
testaceous to reddishbrown; eyes, antennae and front tibiae darker.
Head
without punctures; eyes reniform, moderately protuberant; frons smooth, flat, with scattered minute punctures; vertex smooth, flattened.
Rostrum
distinctly shorter than head; minutely punctured, widened beyond antennal insertions; apex 3 times wider than frons in male, about 2 times wider than frons in female; postlabial area in male with pair of small bumplike projections.
Antennae
inserted near base of rostrum in both sexes; club elongatecompact, subequal to funicle in length; basal and terminal club segments subequal in length; middle segment slightly shorter; funicular segment 1 globose, shorter than scape; 2 short, shorter than segment 1, clavate; segment 3 like 2 but longer; subequal in length to segment 1; segment 4 subequal in length to 2 but more robust; 5–7 subequal, moniliform.
Pronotum
smooth, shiny, with some minute shallow punctures; anterior collar weakly defined, dorsally widened and vshaped.
Scutellum
only slightly wider than long, 4sided, posterior margin rounded, with some minute punctures.
Elytra
slightly longer than wide in male, as long as wide in female, widest at humeri; in dorsal view narrowed posteriorly, without transverse depression behind scutellum; humeri simple, moderately protuberant, obliquely angulate; striae distinct at elytral base, smaller and less distinct posteriorly; intervals flat, smooth, wide, with minute punctures.
Profemora
evenly swollen in both sexes.
Distribution
(
Fig. 1
). All specimens, except one (Cabima), are from the Canal Zone of
Panama
.
Comments.
This species can be identified by the smooth shiny reddishbrown to pale brownish body and the darker eyes, antennae and protibiae (Figs 53–56). The females have unique large paired setose patches on abdominal sternites 1–3 (Fig. 55).
Host plants.
Omolabus fasciventris
has been collected on the foliage of
Uncatia
sp. (
Rubiaceae
) and
Lacistema aggregatum
(Berg.) Rusby (Lacistemaceae)
and fogged from
Luehea seemannii
Triana & Planchon (Tiliaceae)
.
Name derivation.
The specific epithet is in reference to the setose patches on the ventrites of the female.