Rhinocylapoides brachypterus, a new cylapine genus and species from Malaysia (Hemiptera: Heteroptera: Miridae)
Author
Wolski, Andrzej
Author
Gorczyca, Jacek
text
Zootaxa
2011
3040
19
24
journal article
46296
10.5281/zenodo.278783
3ec22a4b-ce34-458b-be7c-278deef50591
1175-5326
278783
Rhinocylapoides
gen. nov.
Type
species.
Rhinocylapoides brachypterus
sp. nov.
, here designated.
Diagnosis.
Rhinocylapoides
gen. nov.
can be distinguished from other genera of the
Rhinocylapus
group, as diagnosed by
Wolski (2010)
, by having the following set of features: body in males brachypterous (
Figs. 1
,
3
); dorsum matte (
Fig. 1
); gula devoid of protruding, long setae; antennal segments III and IV rather short, not distinctly longer than II (
Fig. 1
); pronotum almost square; posterior lobe of pronotum almost impunctate, rugose, anterior lobe occupying most of pronotum (
Fig. 1
); posterior portion of proepisternum impunctate; ductus seminis with sclerotized portion within endosoma long, reaching apex (
Fig. 5
).
Description. Male.
Brachypterous, suboval.
STRUCTURE AND VESTITURE
(
Figs. 1–4
). Dorsal surface matte, covered with sparse, very short, decumbent setae.
Head
. Elongated horizontally, conical, covered with setae more irregularly distributed than those on remainder of dorsal surface; longitudinal incision on vertex deep; labrum with 3 distinct spines; antenniferous tubercle distinctly removed from inner margin of eye; antennal segment I covered with sparse, black, almost decumbent setae; segment II bent medially, covered with very dense, minute, apically curved setae and with sparse, semierect setae, apparently denser at apex; antennal segments III and IV covered with relatively dense, semierect setae; labium very long, distinctly reaching beyond apex of pygophore; segment I undivided, long, reaching half of forecoxae; segments III and IV thinner than II; segment IV sharply pointed.
Thorax
.
Pronotum
. Nearly square; pronotal collar well separated from remainder of pronotum, somewhat rugose, devoid of setae; anterior lobe of pronotum broad, occupying most of pronotum, convex, with moderately deep incision medially; posterior lobe distinctly rugose; lateral margin apparently carinate; posterior margin incised medially.
Mesoscutum and scutellum
. Covered with setae sparser than those present on remainder of dorsal surface; scutellum slightly convex, with indistinct, sparse punctures medially.
Hemelytron
. Covered with moderately dense, rather small punctures, and with very short setae, situated at each puncture; apical portion of hemelytron enveloping membrane; corium and clavus weakly separated, almost fused; embolium impunctate; costal fracture absent; membrane distinctly abbreviated.
Thoracic pleura
. Propleuron impunctate anteriorly, rugose with indistinct punctures posteriorly; remaining pleura rugose.
Legs
. Long; femora and tibiae covered with moderately dense, semidecumbent setae; tarsus long; tarsomere I about three times shorter than II; tarsomere II divided; pretarsal claw toothed subapically.
Abdomen
. Covered with sparse, short setae.
Male genitalia
(
Figs. 5–8
). Right paramere distinctly rounded with apical process flatted and furnished with spine at extreme apex, inner margin of body of right paramere rounded; endosoma composed of two membranous lobes; sclerotized portion of ductus seminis within endosoma long, curved apically, slightly reaching beyond apex; endosoma also with a curved sclerite situated apically.
Female.
Unknown.
Etymology.
The name
Rhinocylapoides
is used to denote the similarity of the new genus to the genera
Rhinocylapidius
and
Rhinocylapus
; gender masculine.
Discussion.
The present new genus strongly resembles the genera
Rhinocylapus
Poppius, 1909
and
Rhinocylapidius
Poppius, 1915
, sharing characters such as: horizontally elongated head (
Figs. 1–2
,
4
); antenniferous tubercle distinctly removed from inner margin of eye (
Figs. 2
,
4
); labial segment I long, reaching half of forecoxae; segments III and IV thinner than II; segment IV sharply pointed (
Fig. 2
); distinctly punctate hemelytron (
Figs. 1
,
3
); endosoma with several sclerites and sclerotized lobes (
Fig. 5
). The new genus is distinct, however, by its suboval, brachypterous, rather small body; the matte dorsum; the shape and structure of the pronotum; and the structure of aedeagus. In the new genus the sclerotized portion of the ductus seminis is distinctly elongated, reaching slightly beyond the apex (
Fig. 5
). In the genera
Rhinocylapus
and
Rhinocylapidius
, the sclerotized part of the ductus seminis inside the endosoma is distinctly shorter (in
Rhinocylapus
it is usually strongly reduced) (
Wolski 2010, Figs. 10A, 11A, 12A, 13A, 14A, 15A
). The pronotum in the new genus is almost square, and the posterior lobe is rugose, almost devoid of punctures; anterior lobe occupies most of pronotum (
Fig. 1
), whereas all species belonging to the genera
Rhinocylapidius
and
Rhinocylapus
have the pronotum trapezoidal, with its posterior lobe distinctly punctate, about as long as the anterior lobe (
Wolski 2010,
Figs. 1, 2
H-R
). Other features easily distinguishing the new genus from
Rhinocylapus
and
Rhinocylapidius
are the brachypterous, suboval, rather small (<
3.1 mm
) body, with its hemelytra apparently rounded laterally, distinctly broader than posterior width of the pronotum (
Figs. 1
,
3
). All
Rhinocylapus
species are longer (usually> 5.0 mm), macropterous and elongated, with hemelytra being only slightly broader than the posterior width of the pronotum (
Wolski 2010,
Figs. 1, 2
J-R
). The dorsal surface in the new genus is matte, whereas
Rhinocylapus
and
Rhinocylapidius
the dorsum is always shining (
Wolski 2010,
Figs. 1, 2
H-R
). Furthermore, the new genus does not possess long, protruding setae on the gula, which are present in
Rhinocylapus
and
Rhinocylapidius
.