Revision of the genus Polymerus (Heteroptera: Miridae) in the Eastern Hemisphere. Part 1: Subgenera Polymerus, Pachycentrum subgen. nov. and new genus Dichelocentrum gen. nov.
Author
Gapon, D. A.
Zoological Institute of the Russian Academy of Sciences, 1 Universitetskaya Emb., St Petersburg, 199034, Russia. E-mail: tentatdag @ gmail. com
tentatdag@gmail.com
text
Zootaxa
2014
2014-04-15
3787
1
1
87
journal article
5631
10.11646/zootaxa.3787.1
77d9653e-4e5b-4a9f-9e64-20dc913f264a
1175-5326
5079572
1D2EB477-F95D-4A41-AAC1-F84E7347769A
5.
Dichelocentrum alkadanum
(
Linnavuori & van Harten, 2005
)
comb. nov.
(
Figs 35 M–O
;
36 C, H
;
39 D
;
42 I
)
Polymerus
(
Polymerus
)
alkadanus
Linnavuori & van Harten, 2005: 87–89
, figs 2,3.
Material examined.
Holotype
.
Yemen
,
Al Kadan
,
Oct. 2001
,
van Harten
,
Abdul-Hag
, female (
NMWC
).
Paratypes
: the same data as above,
2 females
*;
Yemen
,
Sana´a
,
Suq Bani Mansour
,
14 Nov.–28. Dec. 2001
,
1 female
(
NMWC
). A single male from the type series is lost: it is absent in the collection of
R. Linnavuori
, in AMNH and NMWC
.
Diagnosis.
Recognised by the dark colouration and large size of the body (
Fig. 42 I
). This species can be confused with dark specimens of
D
.
ornatifrons
in colouration, but differs from the latter species by dark brown cuneus and absence of reddish spots on membranal veins and also by shape of parameres and smaller ratio of length of second antennal segment to width of pronotum (1.21–1.26 vs. 1.45 in
D
.
ornatifrons
).
Right
and
left parameres
are figured in the paper of
Linnavuori & van Harten (2005)
. Hypophysis of right paramere is similar to those of
D
.
longirostre
and
D
.
flora
, from latero-posterior view looks almost rectangular and wider than in the latter two species (
Fig. 35 M, N
). Hypophysis of left paramere in the picture is rather short, with evenly convex superior margin, not concave before apex and with inferior margin as in
D
.
transvaalicum
sp. nov.
; extreme apex of hypophysis is figured as rather wide (
Fig. 35 O
).
Vesica
. Superior margin of posterior branch of spicule on figures of
Linnavuori & van Harten (2005)
looks rather smoothly curved in apical part (
Fig. 36 C, G
).
Gynatrium
(
Fig. 39 D
). Notch on ventral margin of interramal sclerites moderately deep, triangular. Dorsal margin of interramal sclerite smoothly concave, without medial prominence. Separate sclerite near dorsal margin of interramal sclerites absent.
Distribution.
Yemen
.