Calicnemia fortis sp. nov. from Pakistan (Odonata: Zygoptera: Platycnemididae)
Author
Dow, Rory A.
Author
Zia, Ahmed
Author
Naeem, Muhammad
Author
Rafi, Muhammad Ather
text
Zootaxa
2014
3869
3
338
342
journal article
10.11646/zootaxa.3869.3.7
a463d236-e3b5-4b06-a3bd-11fcd43bba69
1175-5326
229357
2CD14020-BB9B-480A-9294-E40452114183
Calicnemia fortis
sp. nov.
(
Figs. 1
–
7
)
Type
material.
Holotype
:
♂ (ODO/ZYG/217),
Pakistan
, Azad Jammu and Kashmir, Muzaffarabad, Noseri,
11 v 2005
, leg. S. A. Zia, deposited in the National Insect Museum, Islamabad,
Pakistan
.
Paratype
:
♂ (ODO/ZYG/ 218), data as
holotype
.
Etymology.
The species is named
fortis
, an adjective, meaning robust, referring to the strong build and relatively large size of the species.
Description of
holotype
male.
Head: labium dark brown. Labrum black, clypeus black except for 2 small pale, widely separated spots on postclypeus. Mandible bases black. Genae dark brown adjacent to mandible bases, elsewhere dark with irregular pale markings. An indistinct pale area at junction of frons and clypeus, frons otherwise matte black, vertex and occiput same, antennae with scape and pedicel black with brown sections at top, flagellum missing. Ocelli yellowish.
Thorax (
Fig. 1
): Prothorax matte black with grey pruinesence covering most of propleuron, anterior lobe of pronotum and lateral anterior part of middle lobe. Synthorax matte black except for a narrow irregular yellowish stripe on metepisternum, broadest near legs where extending slightly onto mesepimeron, running above and over spiracle, tapering toward but not reaching antealar carina. A broad, irregular yellow stripe occupies much of metepimeron. Legs with coxae pale with obscure dark areas anteriorly and laterally, otherwise mostly dark brown and black with sparse grey pruinosity on trochanters and femora. Wings (
Figs. 2
–
3
) with 5 postquadrangular cells in Fw,
4 in
Hw. 18 Px in Fw, 16 (left) and 15 (right) Px in Hw. Pt pale, covering ca 2 underlying cells, approximately rhombic, but with costal side a little shorter than anal side.
FIGURES 1–3.
Calicnemia fortis
holotype: (1) lateral view thorax; (2) left Fw; (3) left Hw.
FIGURES 4–7.
Calicnemia fortis
holotype: (4) genital ligula ventral-lateral view; (5) anal appendages lateral view; (6) cercus interior view; (7) anal appendages dorsal view.
Abdomen: S1 black dorsally, laterally mostly yellow. S2 mostly black with obscure rusty red markings in apical two thirds. S3
–
6 red, darkening with each successive segment, black behind posterior carina dorsally and in upper part laterally. S7 dark red dorsally except at apical extremity, same colour lower laterally, with a poorly defined black stripe between, except in basal ca one-fifth. S8 black with obscure dark red markings lower laterally and in basal half dorsally. S9 black except for apical red lower lateral mark. S10 black. Genital ligula (
Fig. 4
) typical for group 2
Calicnemia
, terminal segment with two broad apical lobes, almost square at ends. Anal appendages of typical form for the genus, as shown in
Figs. 5–7
with interior ventral tooth located basally on cercus, bifurcated terminally.
Measurements
(mm): Abdomen without anal appendages 37, paraprocts ca 1.5; Hw 28.5.
Female.
Unknown.
Variation in
paratype
male.
The
paratype
male (
Fig. 8
) does not differ from the
holotype
in any significant way except that two full length pruinose antehumeral stripes are present, and there is more extensive pruinosity on the prothorax and laterally on the synthorax. Additionally abdominal S1
–
2 are largely pruinose grey.
Measurements
(mm): Abdomen without anal appendages 35; Hw 28.5; 18 Px in Fw, 14 (right) or 16 (left) Px in Hw.
FIGURE 8.
Habitus of
Calicnemis fortis
paratype.
Diagnosis.
A robust group 2
Calicnemia
with synthorax black with yellow lateral marks and abdomen with S2
–
7 wholly or partly red. Separated from all other species of group 2 of
Calicnemia
except
C. hasik
Wilson & Reels, 2003
,
C. mortoni
(
Laidlaw, 1917
)
,
C. nipalica
Kimmins, 1958
,
C. pulverulans
(Selys, 1886)
and
C. rectangulata
Laidlaw, 1932
by the black mesepisternum lacking antehumeral markings or with only pruinose blue antehumeral markings. Distinguished from
C. pulverulans
by the entirely black abdomen and the more rounded ends of the lobes of the terminal segment of the ligula of that species. Distinguished from
C. hasik
by more extensive red colouration on the abdomen, broader lobes of the terminal segment of the ligula and shorter tooth on the cercus in lateral view.
C. rectangulata
differs in the extent of the red markings in the abdomen and in having a much larger tooth on the cercus, very prominent in lateral view.
C. nipalica
has the terminal segment of the ligula deeply divided.
C. mortoni
has a longer but less broad tooth on the cercus and the terminal segment of the ligula deeply divided.
Remarks
. In his PhD thesis (
Zia 2010
) the second author gave this species a name,
Indocnemis ahmedi
, and presented a (composite) description, but also issued a disclaimer, citing article 8.2 of the International code of Zoological Nomenclature (ICZN 2012), to the effect that “description of new species i.e.
Indocnemis ahmedi
provided in this dissertation is not issued for public and permanent scientific record or for purposes of zoological nomenclature”. The name
ahmedi
is therefore not available; in any case it would not have been available because no
holotype
was designated (article 16.4.1).
Calicnemis fortis
was found flying within tall grassy vegetation around an open spring which runs into a fast flowing stream.
Calicnemia eximia
was common at the same site. Unfortunately following the devastating earthquake in
October 2005
the spring at the
type
locality dried up, and the species has not been relocated in that area despite repeated searches by the second author in the following three years. However,
Zia (2010)
lists two additional males from a location in North West Frontier Province of
Pakistan
. These specimens have not been seen by the first author and in the view of the second author might represent a different species, because they differ quite substantially in colouration and some other characters as well; therefore they are left out of consideration here. The species should be searched for not just in neighbouring regions of
Pakistan
, but also in the neighbouring Indian state of Jammu and Kashmir.
In life the markings on the abdomen were pinkish red, becoming darker on S6–7; in the
holotype
they have faded considerably with preservation. The colour of the
paratype
male (
Fig. 8
) is better preserved than that of the
holotype
, as is the extensive pruinosity on the thorax and abdominal S1–2. In the
holotype
there is no indication of any antehumeral markings, but pruinose antehumeral stripes are present in the
paratype
. Possibly, as is the case in males of some other
Calicnemia
species, e.g.
C. soccifera
Yu & Chen, 2013
, yellow antehumeral markings are present in immature individuals but later these markings become completely pruinose (
Yu & Chen 2013
). In the case of
C. fortis
, possibly the underlying marking fades completely, leading to the condition now seen in the
holotype
.
Calicnemia fortis
comes closest to
C. pulverulans
, from which it differs principally in the colour of the abdomen and details of the genital ligula.
Calicnemia pulverulans
has been recorded as far west as the Nanda Devi Bisophere Reserve in Uttar Pradesh,
India
(
Kumar 1997
), but this is more than
600 km
from the
type
locality of
C. fortis
. Differences from
C. pulverulans
and other species most closely resembling the available material of
C. fortis
are given in the diagnosis. Considering the remaining species in group 2 of
Calicnemia
,
C. fortis
males are easily separated from those of
C. chaseni
(Laidlaw in Campion & Laidlaw, 1928),
C. miles
(
Laidlaw, 1917
)
,
C. miniata
(Selys, 1886)
,
C. chaoi
Wilson, 2004
, and
C. zhuae
Zhang & Yang, 2008
, which have bright red or orange antehumeral stripes as well as differences in the anal appendages and genital ligula; uniquely in the genus
C. chaoi
possesses amber wings (
Wilson 2004
). Of three Chinese species with males possessing yellow or pruinosed antehumeral stripes:
C. gulinensis
Yu & Bu, 2008
,
C. porcata
Yu & Bu, 2008
and
C. soccifera
,
C. soccifera
has the terminal segment of the genital ligula with much narrower lobes and legs with a red or yellow femur contrasting with a black tibia.
Calicnemia gulinensis
has an orange abdomen and far more extensive pale markings on labrum and clypeus and
C. porcata
differs in the colouration of the head, details of the tooth on the cercus and in the ligula, which bears a distinctive ridge centrally on the terminal segment, and has the lobes almost square ended. This leaves two species that have not been placed in either of Lieftinck’s groups within
Calicnemia
; these are dealt with below.
The species group to which
C. uenoi
Asahina, 1997
, from
Vietnam
belongs is unclear because Asahina provided no illustration of the ligula.
Asahina (1997: 22)
stated that
C. uenoi
is “One of the typical
Calicnemia
species ...”, but judging from the illustrations it seems atypical in the form of the tooth on the cercus, a narrow median spine rather than the robust tooth, normally with a bifid tip, and typically placed more basally, that is usual in
Calicnemia
. The
type
series of
C. uenoi
was deposited in the National Museum of Nature and Science, Tokyo,
Japan
, but at the present time it cannot be located (Akihiko Sasamoto and Takuya Kiyoshi, personal communication). However, in the collection of the Naturalis Biodiversity Center (RMNH), Leiden, there is a male labelled as
C. uenoi
from the area of the
type
locality, donated from the collection of Matti Hämäläinen and originally collected by Haruki Karube. It is difficult to reconcile the anal appendages of the RMNH specimen with Asahina’s illustrations, and this specimen seems close to
C. hasik
. When describing
C. hasik
,
Wilson & Reels (2003: 266)
commented on Asahina’s description of
C. uenoi
and, understandably, concluded that their species was distinct; the RMNH specimen suggests that further study of this matter is needed. It is to be hoped that the
type
series of
C. uenoi
will become available in the near future. In any case,
C. uenoi
as illustrated by Asahina is clearly distinguished from
C. fortis
by the form and position of the tooth on the cercus, and
C. hasik
and the RMNH specimen differ from
C. fortis
in the details of the ligula, anal appendages and colouration.
Calicnemia sudhaae
Mitra, 1994
, known from Mizoram in northeast
India
and which is said (
Mitra 2002
) to resemble
C. pulverulans
, does not appear to have been assigned to either species group within
Calicnemia
. This species is illustrated in
Mitra (2002: figs. 54-56)
where the ligula appears to have ribbon-like flagellae, an impression confirmed by the text “flagella one pair, long ribbon like with pointed apex” (
Mitra 2002: 56
). Therefore
C. sudhaae
belongs to group 1 of
Calicnemia
and need not be considered further here.
The large size and long wing length of this species partly accounts for the high count of postquadrangular cells in
C. fortis
, a character that
Fraser (1933)
, following
Laidlaw (1917)
, used to separate
Calicnemia
from
Indocnemis
Laidlaw, 1917
. Recent authors have seldom or never given counts of the postquadrangular cells in their descriptions of
Calicnemia
species, but the illustration of the Hw of
C. chaoi
shows 4 postquadrangular cells (
Wilson 2004: 429, fig. 21
).
Lieftinck (1977: 20, 22)
stated that
C. miniata
males from northern
India
and
Nepal
examined have 3
–
4 postquadrangular cells and that even the
holotype
male of
C miles
has 3
–
3-1/2 postquadrangular cells. In fact the wing photograph of
C. pulverulans
in
Laidlaw (1917: plate XV, fig. 3)
, the same publication where
Indocnemis
was described and where the count of postquadrangular cells was first used to distinguish
Calicnemia
from
Indocnemis
, shows almost 4 postquadrangular cells in the left Fw. It is to be hoped that these examples will finally lay to rest the idea that the count of postquadrangular cells is a character of value for distinguishing
Calicnemia
from related genera.
With the addition of
C. fortis
,
Calicnemia
consists of 22 named species, unless
C. pyrrhosoma
Lieftinck, 1984
is recognised; this name persists on some world
Odonata
checklists although it was established as a junior synonym of
C. doonensis
Sangal & Tyagi, 1984
by
Hämäläinen (1989)
.
Yu & Bu (2008)
commented on the extent of variability of markings with age and possibly location in
C. sinensis
Lieftinck, 1984
, and geographical variation in markings may occur in other species, so that caution is needed in separating species based entirely on colour patterns. However, structural differences in ligula and caudal appendages are also often subtle, rendering
Calicnemia
a difficult genus to work on.
As
noted by
Yu & Chen (2013)
, some of the Chinese species “seem to be closely related, and more detailed studies are needed to clarify their true relationships”; we can only extend this statement to the whole genus.