Two more new species of Aphidura (Hemiptera, Aphididae), and a note on variation in Aphidura bozhkoae Narzikulov
Author
Nieto Nafria, Juan M.
Author
Blackman, Roger L.
Author
Martin, Jon H.
text
ZooKeys
2014
425
113
130
http://dx.doi.org/10.3897/zookeys.425.7797
journal article
http://dx.doi.org/10.3897/zookeys.425.7797
1313-2970-425-113
11B5A7D938044F35AEE2F5588790E89B
11B5A7D938044F35AEE2F5588790E89B
Taxon classification Animalia Hemiptera Aphididae
Aphidura libanensis
sp. n.
Diagnosis.
Siphunculi tapering to apex or slightly swollen in a distal portion. Dorsum of metathorax to abdominal segment 6 with a discal plate (apterae). Mesosternal mammariform processes pale, flat and with spinules (apterae). Abdominal marginal tubercles usually present. Tarsal formula 3.3.3. (sometimes one tarsus with 4 setae)
Apterous viviparous female
from 5 specimens (Figs 1
A-E
). Unknown colour in life, possibly shiny black with antennae, legs and siphunculi pale brown. In mounted specimens, antennae, mesosternal mammariform processes, legs, siphunculi, abdominal segment 8 sclerotized band, cauda and genital and anal plates are yellowish brown, with very proximal and distal portions of siphunculi, antennal segment VI and very apical portion of antennal segment V somewhat darker than aforementioned structures, all in contrast with head and dorsum of thorax and most part of abdomen, which are very dark brown. Frons undulated. Head with rugosity lines and spinules (both more abundant on dorsum). Antennal cuticle imbricated. Setae on body dorsum, antennae, and most of those on legs thick, with apices blunt or slightly capitate. Mesosternal mammariform processes pale, flat and with spinules. A discal plate present (from metathorax to abdominal segment 6); prothorax, mesothorax and abdominal segment 7 with wide transverse bands, which are darker than the discal plate, abdominal segment 8 with a band paler than the others. Marginal tubercles usually present on both sides of prothorax and several abdominal segments; they are small, but the abdominal ones are relatively tall. Siphunculi tapering to apex or slightly swollen in the distal
quarter
, spinulose imbrication, distinct preapical incision and flange. Cauda broadly triangular. Metric and meristic features in Table 1.
Figure 1.
Aphidura libanensis
sp. n., apterous viviparous females. A Habitus B Part of prothorax with a marginal tubercle (signalled with an arrow) C Marginal zone of abdominal segments 3 and 4, with marginal tubercles (signalled with arrows) D Mesosternum with mammariform processes (signalled with arrows) E Mesosternum with mammariform processes (signalled with arrows) of another specimen.
Table 1. Metric and meristic features of apterous viviparous females of
Aphidura libanensis
sp. n. and
Aphidura corsicensis
sp. n.
Aphidura libanensis
|
Aphidura corsicensis
|
n=5 |
n=3 |
Types.
Holotype: apterous viviparous female, collected on
Prunus prostrata
Labill. (
Rosaceae
), Jabal el Barouk (Lebanon), 2-V-1973, Hille Ris Lambers leg.; paratypes: four apterous females collected at the same time as the holotype.
Etymology.
The specific name of the new species is an adjective that means inhabitant of Lebanon, in feminine.
Discussion
.
D. Hille Ris Lambers thought that these Lebanese specimens were conspecific with others found on
Prunus
in Iran, which were being studied by him and G.
Remaudiere
, and that they all belonged to an undescribed species, which was named in draft
"nitens"
(
Remaudiere's
epistolary archive). Certainly these Lebanese aphids do not belong to any previously described species, but they are also not conspecific with the Iranian ones, which we believe to be
Aphidura bozhkoae
(see next section).
Aphidura libanensis
sp. n. resembles Iranian specimens of
Aphidura bozhkoae
and the East Asian species
Aphidura mordvilkoi
in the shape of the siphunculi and the extensive and solid discal plate, but there is an important difference in the number of first tarsal setae: four setae on each first tarsal segment in
Aphidura bozhkoae
and
Aphidura mordvilkoi
, and three in
Aphidura libanensis
.
Aphidura libanensis
and
Aphidura mordvilkoi
can also be distinguished from one another by the number of accessory setae on the ultimate rostral segment (6-9 in
Aphidura libanensis
, 2-4 in
Aphidura mordvilkoi
) and the relative length of the processus terminalis (3.6-4.9 times base of antennal segment VI in
Aphidura libanensis
, 2.2-2.7 times in
Aphidura mordvilkoi
).
Aphidura libanensis
and
Aphidura bozhkoae
are very similar in absolute and relative lengths of most body parts, the setae of
Aphidura libanensis
(Table 1) are all generally longer than those of
Aphidura bozhkoae
(Table 2).
Table 2. Metric and meristic features of apterous viviparous females of
Aphidura bozhkoae
from Tajikistan, collected by Narzikulov (column Tajik. [Na.]) and by Shaposhnikov (column Tajik. [Sh.], and from Iran, collected by
Remaudiere
. In parenthesis exceptional data.
Tajik. [Na.] |
Tajik. [Sh.] |
Iran [Re.] |
n = 7 |
n = 13 |
n = 31 |