The genus Stilbocoris in the Malagasy area (Hemiptera: Heteroptera: Rhyparochromidae)
Author
Kondorosy, Előd
0000-0001-7162-0862
Department of Conservation Biology, Hungarian University of Agriculture and Life Sciences, Georgikon Campus, str. Deák F. 16, Keszthely, H- 8360 Hungary. kondorosy. ee @ gmail. com; https: // orcid. org / 0000 - 0001 - 7162 - 0862
kondorosy.ee@gmail.com
Author
Zámbó, András
0000-0002-6979-1125
Festetics Doctoral School, Hungarian University of Agriculture and Life Sciences, Georgikon Campus, str. Deák F. 16, Keszthely, H- 8360 Hungary. zamboandras 88 @ gmail. com; https: // orcid. org / 0000 - 0002 - 6979 - 1125
zamboandras88@gmail.com
text
Zootaxa
2021
2021-10-01
5047
4
416
430
journal article
10.11646/zootaxa.5047.4.2
1175-5326
5543013
5B8B0754-0C8E-4977-A841-081F2B6D60A9
Stilbocoris triangularis
Linnavuori, 1978
urn:lsid:zoobank.org:act:
B579CFD3-000F-4446-BE2C-013B7346AA62
(
Fig. 3
)
Type
locality.
Sudan
,
Blue Nile Province
,
Umm Banein Livestock Research Station
.
Examined material.
MADAGASCAR
:
N. Madagascar
,
Antseranana
/distr.,
Sambirana
riv./
Marovato
VIII., 2001/
J. Rolčik
leg. 5-12.12 (
2 ♀♀
,
EKCH
)
;
N. Madagascar
/
Antseranana distr.
/
Sambirana
riv./
Marovato
vill., 2001/
J. Rolčik
leg. 5-12.12 (
1 ♀
, 1?,
EKCH
)
;
Madagascar Sambirano
/Nosy-Be/forêt
de Lokobe
/XII-58/
Andria
Rob- inson/
Institut
/
Scientifique
/
Madagascar
(
1 ♀
,
MNHN
)
.
SENEGAL
:
Senegal-Casamance
/
Kamobeul-Essyhl
/
30-IX- 1982
/
J. Etienne Rec.
[blue label]//sur fruits/tombes/
de Ficus
vogeli [blue label]//
Museum Paris
[light blue label] (
1 ♀
,
MNHN
)
.
TANZANIA
:
Tanzania
,
Morogoro
/
light trap
,
20. V. 1970
/leg.
T. Pócs
(
1 ♀
,
HNHM
)
.
Redescription.
Colour.
Body fuscous; basi- and distiflagellum and callar area continuing posteriad in midline brown; scape, pedicel, labium, pronotum (except fuscous nearly triangular area mostly on anterior lobe not reaching margins), lateral part of ostiolar peritreme, proepimeron and metepimeroid (except punctures), legs with supracoxal lobes, 2–2 almost rounded spots on abdominal sternite III and IV (but sometimes almost all of abdominal sternites nearly uniformly paler in middle part) and sometimes posterior part of mesosternum narrowly pale brown; hemelytra (except fuscous apical margin of corium) pale yellow; membrane hyaline.
Integument.
Body shiny except sublateral pruinose spot of abdominal sternite V almost reaching anterior margin of sternite leaving posterior one-fourth free. Head finely coriaceous, densely punctate with small but deep punctures dorsally, ventral part of head with similar or slightly coarser punctures.Anterior lobe of pronotum densely punctate with fine punctures (similar to punctures of head) almost touching each other, callar area with somewhat finer punctures; posterior lobe in anterior half rather sparsely, in posterior half more densely punctate with slightly coarser punctures; humeral angles glabrous. Anterior part of scutellum with fine punctures similar to that of head but sparser, mostly also transversely rugose, elevation impunctate, punctures laterad of carina very coarse, almost confluent. Punctures of hemelytra variable from very shallow to similar of head punctures. Thoracal venter very densely and coarsely punctate, also metepimeroid punctate. Abdominal venter finely and densely punctate with extremely tiny punctures.
Vestiture.
Head almost glabrous dorsally except extremely short decumbent setae of antenniferous tubercles; with scattered semidecumbent setae on tylus, maxillar plates and ventrally. Pronotum with some hardly visible scattered very short erect setae. Profemora each armed with 2 short thick and dark subapical spines ventrally, meso- and metafemora unarmed ventrally. Abdomen with fine decumbent pubescence.
Structure.
Labium reaching mesocoxae, labiomere I surpassing anterior three quarters of head length but not reaching base of head. Ventral side of head with strong longitudinal wrinkle from inner margin of antenniferous tubercles to posterior margin, missing from other
Stilbocoris
species
of the region but present on
S. natalensis
and its relatives. Callar area of pronotum hardly emergent. Transverse impression of pronotum nearly absent. Lateral margin of pronotum hardly laminate, less than half as wide as base of pedicel; concave at middle, posterior margin clearly concave. Scutellum with well-developed Y shaped elevation.
Male genitalia.
Male of this species is still unknown. It is very unusual that neither among the
types
nor among the additional material examined (further specimens were seen in the studied collections which were not listed above) not a single male has been found. Parthenogenesis has not been reported from any members of
Drymini
, but it might occur in this species.
Total length of body:
3.54–4.26.
Distribution.
This species was previously known only from the
type
locality in Sudan; first records are presented here from
Senegal
,
Tanzania
and
Madagascar
(
Fig. 10
).