Description And Phylogeny Of Staminodeus, A New Genus Of Derelomini (Coleoptera: Curculionidae) Associated With Cyclanthaceae
Author
Nico M. Franz
text
The Coleopterists Bulletin
2001
55
4
411
432
journal article
30418
10.1649/0010-065X(2001)055[0411:DAPOSA]2.0.CO;2
e4f989d2-2dcb-4d3a-9886-95a337ff4c31
1208234
Staminodeus forcipis
,
new species
Diagnosis.
Staminodeus forcipis
is distinguished from
S. bispinosus
by the fairly large frontal spinule and the distinctly arcuate, apically dentate profemur in males. See diagnosis of
S. bispinosus
for females.
Male
. Length
2.1 mm
, width 1.0 mm, l/
w 2.1
. Rostrum
0.5 mm
, r/p 0.8. Frons with 1 apically directed, arcuate spinule, nearly 2/5 as long as diameter of eye, anteriorly with long, fine, erect setae. Pronotum l/
w 0.9
, convex. Prosternum longer than mesosternum. Profemur (
Fig. 3e
) (distinctly) arcuate, f/p 1.2, width similar throughout, each ventrolateral margin with row of denticuli/dentes, larger towards apex; protibia (
Fig. 3e
) slightly arcuate, t/f 1.0, anteroventral margin with row of 8–10 apically directed, arcuate dentes, apically mucronate, promucron nearly 2/3 as long as protarsal claw; mesotibia apically inermous. Elytron l/
w 1.4
. Median lobe (
Fig. 4e
) l/
w 2.9
(N 1), laterobasal sclerites apically heavily sclerotized, broadened, denticulate, median sclerite basally projected, apically acuminate, glabrate, apical rami distinctly undulate in central region, basal 3/4 of median lobe denticulate, aedeagal apodemes shorter than median lobe.
Female
. Length 1.9–2.0 mm, width 1.0 mm, l/
w 1.9
–2.0. Rostrum
0.5 mm
, r/p 1.0. Frontal spine nearly 3/5 as long as diameter of eye. Pronotum l/
w 0.8
–0.9. F/p
1.1–1.2; t/f 0.9–1.0. Elytron l/
w 1.4
(N 2). Spermatheca (
Fig. 5e
) deflexed nearly 90, subapically undulate, apex slightly separated, rotundate.
Type
Information.
Male
holotype
‘‘
COSTA RICA
, S. J.,
Zurqui
de Moravia
,
1,600 m
,
XI1995
,
malaise trap
,
Hanson
&
Godoy’
’ (
CWOB
)
;
female
allotype
‘‘
COSTA RICA
,
S. Jose
,
Zurqui
de Moravia
,
1,600 m
,
malaise trap
,
III1992
,
P. Hanson’
’ (
CWOB
)
;
female
paratype
‘‘
COSTA RICA
,
S. Jose
,
Zurqui
de Moravia
,
1,600 m
,
malaise trap
,
II1993
,
P. Hanson’
’ (
MUCR
, 1: teneral).
Etymology.
Named for the dentate profemur and protibia in males which resemble a pair of tongs—
forceps
signifying ‘‘nippers, tongs’’ (
Brown 1956
).
Distribution.
Staminodeus forcipis
has been collected in the Cordillera de Tilarán of
Costa Rica
, Provincia
Puntarenas
, Monteverde; and in the Central Valley of
Costa Rica
, Provincia
San Jose
´, Zurquí de Moravia (
Fig. 6
).
Natural History.
Unknown.