Additions to the genus Chakra Rajmohana and Veenakumari, 2014 (Hymenoptera: Platygastroidea: Scelionidae) from India
Author
Veenakumari, Kamalanathan
Author
Sreedevi, Kolla
Author
Mohanraj, Prashanth
text
Journal of Natural History
2022
2022-11-23
56
41 - 44
1657
1707
http://dx.doi.org/10.1080/00222933.2022.2123286
journal article
10.1080/00222933.2022.2123286
0cf375df-f872-41b7-a236-7cd0d6200b4c
1464-5262
7380608
Chakra agathachristieae
Veenakumari
sp. nov.
urn:lsid:zoobank.org:act:
AD1E5B91-840A-4F18-989C-14079198C136
(
Figures 1
(a–f), 2(a–b), 23(a))
Female body length =
1.23–1.45 mm
(n = 10); male body length =
1.13 mm
(n = 1).
Colour
Head and mesosoma brown; posterior margin of mesoscutum, mesoscutellum and metascutellar spine, lateral propodeal area red-brown; anterior margins of T1 and T2 with red-brown transverse band; remainder of T1–T3 yellow-brown, remaining tergites brown; inner margins of ocelli black; radicle pale yellow, A1–A2, A5–A6 brown-yellow, remaining antennomeres brown-black; all legs brown-yellow with black apical tarsomeres.
Head
1.3× as wide as high, 1.6× as high as long. Setation on head: dense. IOS: 0.7× head width, 2.5× eye length. OOL> POL> LOL: 9.6:8.0:3.3. OOL: 4.3× MOD. Compound eye: small (L: W = 10.1:7.2). Sculpture on vertex: with setose protuberances, furrows between protuberances smooth. Sculpture of frons: with setose protuberances, furrows between protuberances smooth, except for reticulate-striate patch on dorsal and lateral sides of imaginary central keel. Central keel: absent. Sculpture of gena: with setose protuberances, furrows between protuberances smooth. Facial and malar striae: weak. Interantennal process: triangular.
Mesosoma
L:W of mesoscutum: 22.0:31.3. Setation of mesoscutum: dense. Sculpture of mesoscutum: with setose protuberances, furrows between protuberances smooth. Mesoscutal humeral sulcus: not foveate. Mesoscutal suprahumeral sulcus: not foveate. Scutoscutellar sulcus: foveate laterally. L:W of mesoscutellum: 9.4:20.3. Sculpture of mesoscutellum: with setose protuberances, furrows between protuberances weakly rugose. Setation of mesoscutellum: dense. Sculpture of metascutellum: weakly foveate. Armature of metascutellum: triangular spine. Sculpture of metanotal trough: foveate. Sculpture of lateral propodeal area: with depressions. Posterior propodeal projection: pointed, directed posterolaterally. Sculpture of lateral pronotal area: dorsally with setose protuberances, anteriorly with short uneven carinae, remainder smooth. Pronotal cervical sulcus: not foveate. Netrion sulcus: weakly foveate ventrally. Speculum of mesopleuron: transversely carinate. Episternal sulcus: not foveate. Postacetabular sulcus: not foveate. Prespecular sulcus: not foveate. Mesepimeral sulcus: not foveate. Mesepimeral area: almost smooth, wider than mesepimeral sulcus. Mesopleural carina: present. Sculpture of femoral depression: smooth, with sparse transverse carinae ventrally. Mesopleural pit: present. Sculpture of ventral mesopleuron: with setose protuberances. Sculpture of metapleuron: dorsally smooth except for a rugose patch posteriorly; ventrally with shallow depressions and a smooth patch posteriorly. Metapleural sulcus: foveate. Paracoxal sulcus: foveate. Metapleural epicoxal sulcus: not foveate. L:W of fore wing: 74.5:28.2. L:W of hind wing: 67.2:12.4. Marginal cilia on posterior margin of proximal fore wing: absent.
Figure 1.
Chakra agathachristieae
sp. nov.
(♀): (a) Habitus, dorsal view; (b) frons; (c) head and pleuron; (d) head and mesoscutum; (e) wings; (f) antennae.
Figure 2.
Chakra agathachristieae
sp. nov.
(♂): (a) Habitus, dorsal view; (b) antenna.
Metasoma
L:W of metasoma: 57.3:35.8. Sculpture of T1: weakly longitudinally costate. Length of T1: 0.5× the length of T2. Horn on T1: absent. Length of T2: 0. 5× the length of T3. Sculpture of T2: anteromedially smooth, followed by basal foveae and longitudinal costae. Sculpture of T3: weakly striate anteriorly, remainder smooth with sparse setigerous punctae posteriorly and posterolaterally. Sculpture of T4–T6: smooth with setigerous punctae.
Male
Similar to female. Shape of antennomeres: short and rectangular.
Material examined
Holotype
.
Female
(
Indian Council of Agricultural Research
/
National Bureau of Agricultural Insect Resources
) (
ICAR
/
NBAIR
/
P4454
),
INDIA
:
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566°E
,
936 m
, PFT,
26 November 2013
.
Paratypes
.
1 female
(
ICAR
/
NBAIR
/
P4455
), Karnataka: Bengaluru, Attur,
13.096°N
77.566° E
,
936 m
, YPT,
08 April 2014
;
1 female
(
ICAR
/
NBAIR
/
P4456
), Karnataka: Bengaluru, Attur,
13.096°N
77.566°E
,
936 m
, PFT,
12 August 2013
;
1 female
(
ICAR
/
NBAIR
/
P4457
)
,
Holotype
:
Female
(
ICAR
/
NBAIR
/
P4454
),
INDIA
:
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566°E
,
936 m
, PFT,
26 November 2013
,
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566°E
,
936 m
, YPT,
30 August 2011
;
1 female
(
ICAR
/
NBAIR
/
P4458
),
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566° E
,
936 m
, PFT,
12 June 2014
;
1 female
(
ICAR
/
NBAIR
/
P4459
),
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566°E
,
936 m
, PFT,
09 January 2014
;
1 female
(
ICAR
/
NBAIR
/
P4460
),
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566°E
,
936 m
, YPT,
29 December 2012
;
1 female
(
ICAR
/
NBAIR
/
P4461
),
Arunachal Pradesh
:
Pasighat
, CHF,
28.080°N
95.324°E
,
173 m
, YPT,
10 November 2014
;
1 female
(
ICAR
/
NBAIR
/
P4462
),
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566°E
,
936 m
, YPT,
06 March 2015
;
1 female
(
ICAR
/
NBAIR
/
P4463
),
Karnataka
:
Bengaluru
,
Central Institute of Freshwater Aquaculture
(
CIFA
),
Hessaraghatta
,
13.133°N
77.490°E
,
859 m
, YPT,
29 August 2013
;
1 female
(
ICAR
/
NBAIR
/
P4464
),
Karnataka
:
Bengaluru
,
CIFA
,
Hessaraghatta
,
13.133°N
77.490°E
,
859 m
, YPT,
07 August 2014
;
3 females
(
ICAR
/
NBAIR
/
P4465–4467
),
Karnataka
:
Bengaluru
,
CIFA
,
Hessaraghatta
,
13.133°N
77.490°E
,
859 m
, YPT,
07 July 2014
;
1 female
(
ICAR
/
NBAIR
/
P4468
),
Karnataka
:
Bengaluru
,
Hessaraghatta
,
13.133°N
77.490°E
,
859 m
, YPT,
21 August 2015
;
1 female
(
ICAR
/
NBAIR
/
P4469
),
Karnataka
:
Bengaluru
,
Jarakabande Kaval
,
13.094°N
77.543°E
,
921 m
,
MT
,
24 November 2016
;;
5 females
(
ICAR
/
NBAIR
/
P4470–4474
),
Karnataka
:
Bengaluru
,
Hebbal
,
NBAIR
,
13.027°N
77.584°E
,
927 m
, YPT (grass),
27 July 2012
;
1 female
(
ICAR
/
NBAIR
/
P4475
),
Bengaluru
,
Hebbal
,
NBAIR
,
13.027°N
77.584°E
,
927 m
, YPT,
25 July 2015
;
1 female
(
ICAR
/
NBAIR
/
P4476
),
Tamil Nadu
:
Vellore
,
Yelagiri
,
12.578°N
78.662°E
,
969 m
, YPT,
17 June 2016
;
1 female
(
ICAR
/
NBAIR
/
P4477
),
Kerala
:
Thiruvananthapuram
;
Vellayani
,
8.730°N
76.987°E
,
11 m
, SN,
21 November 2015
;
1 female
(
ICAR
/
NBAIR
/
P4478
),
Karnataka
:
Udupi
,
Brahmavara
,
13.430°N
74.745°E
,
36 m
, YPT (weeds),
29 May 2014
;
1 female
(
ICAR
/
NBAIR
/
P4479
),
Karnataka
:
Dakshina Kannada
:
Vittal
,
Central Plantation Crops Research Institute
(
CPCRI
),
12.524°N
74.964°E
,
6 m
, YPT (cocoa plot),
20 February 2015
;
1 female
(
ICAR
/
NBAIR
/
P4480
),
Kerala
:
Kasargod
,
CPCRI
,
12.524°N
74.964°E
,
6 m
, YPT,
20 February 2015
;
2 females
(
ICAR
/
NBAIR
/
P4481
–
P4482
),
Arunachal Pradesh
:
Pasighat
, CHF,
28.080°N
95.324°E
,
173 m
, YPT,
10 November 2014
;
1 female
(
ICAR
/
NBAIR
/
P4483
),
Assam
:
Dibrugarh
,
Krishi Vigyana Kendra
(
KVK
),
27.472°N
94.911°E
,
109 m
, YPT,
07 November 2014
;
1 male
(
ICAR
/
NBAIR
/
P4484
),
Karnataka
:
Bengaluru
,
Attur
,
13.096°N
77.566°E
,
936 m
, PFT,
27 August 2011
.
Etymology
This species is named after Dame Agatha Christie, the internationally recognised queen of detective fiction. The name is treated as a noun in the genitive case.
Diagnosis
This species resembles
C. valluvari
sp. nov.
and
C. sarvatra
, but differs from them in having OOL longer than POL, OOL> 4.3× MOD and a triangular interantennal process with a wide base; while in the latter two species POL is longer than OOL, OOL <3.3× MOD and the interantennal process is rectangular and elongate.