Chakra pachmarhica (Sharma, 1978)

Veenakumari, Kamalanathan, Sreedevi, Kolla & Mohanraj, Prashanth, 2022, Additions to the genus Chakra Rajmohana and Veenakumari, 2014 (Hymenoptera: Platygastroidea: Scelionidae) from India, Journal of Natural History 56 (41 - 44), pp. 1657-1707 : 1682-1688

Chakra pachmarhica (Sharma, 1978)

Figures 12 (a–i), 13(a–d), 14 (a–f), 15(a–c), 23(h))

Chakra pachmarhica (Sharma, 1978) , Talamas et al. 2017: 194 (Generic transfer).

Probaryconus pachmarhicus Sharma, 1978: 24 (original description)

Paridris dubeyi Sharma, 1982: 336 (original description); Johnson 1992: 459 (catalogued);

Rajmohana 2007: 57 (keyed); Talamas et al. 2017: 194 (synonymised).

Paridris pachmarhicus (Sharma) : Mani and Sharma, 1982: 178 (description); Johnson, 1992: 460

(catalogued); Rajmohana, 2007: 57 (keyed).

Paridris pachmarhica (Sharma) : Talamas et al. 2012: 32 (gender emended).

Redescription

Female body length = 1.66–1.98 mm (n = 10) (present material).

Female body length = 2 mm; male body length = 1.95–2.32 mm ( Sharma 1982).

Colour

Highly variable, ranging from dark brown to orange-brown; radicle, A1–A2 yellow-brown, remaining antennomeres dark brown; all legs yellow-brown with black apical tarsomeres. Head

As wide as high, 1.4× as high as long. Setation on head: dense. IOS: 0.6× head width, subequal to eye length. POL> LOL> OOL: 9.7:4.9:2.6. OOL: 0.6× MOD. Compound eye: large (L:W = 23.1:15.9). Sculpture of vertex: with setose protuberances, furrows between protuberances with rugose sculpture, posteriorly transversely carinate. Sculpture of frons: dorsal frons with sparse setose protuberances, area between protuberances smooth to coriaceous reticulate; medial frons smooth; lower frons with short transverse carinae on either side of central keel interspersed with setose protuberances and longitudinal carinae laterad. Central keel: present, 0.2× head height. Sculpture of gena: with setose protuberances interspersed with longitudinal carinae. Facial and malar striae: prominent. Interantennal process: smooth, gradually narrowing apically.

Mesosoma

L:W of mesoscutum: 23.7:40.3. Setation of mesoscutum: dense. Sculpture of mesoscutum: with setose protuberances, furrows between protuberances with rugose sculpture. Mesoscutal humeral sulcus: foveate. Mesoscutal suprahumeral sulcus: foveate. Scutoscutellar sulcus: laterally foveate. L:W of mesoscutellum: 12.4:30.5. Sculpture of mesoscutellum: with setose protuberances, furrows between protuberances with rugose sculpture. Setation of mesoscutellum: dense. Sculpture of metascutellum: basally foveate, remainder smooth to foveate. Armature of metascutellum: medially notched rectangular lamina. Sculpture of metanotal trough: weakly foveate. Sculpture of lateral propodeal area: with large depressions. Posterior propodeal projection: not pointed. Sculpture of lateral pronotal area: dorsally with setose protuberances, medially smooth, posteriorly obliquely carinate interspersed with setigerous punctae, ventrally transversely carinate. Pronotal cervical sulcus: not foveate. Netrion sulcus: entirely foveate. Speculum of mesopleuron: transversely carinate. Episternal sulcus: foveate. Postacetabular sulcus: weakly foveate. Prespecular sulcus: foveate. Mesepimeral sulcus: dorsally foveate. Mesepimeral area: smooth, narrower than mesepimeral sulcus. Mesopleural carina: present. Sculpture of femoral depression: entirely smooth. Mesopleural pit: present. Sculpture of ventral mesopleuron: with setose protuberances and dense setae ventrally. Sculpture of metapleuron: dorsally and ventrally smooth. Metapleural sulcus: foveate. Paracoxal sulcus: foveate. Metapleural epicoxal sulcus: not foveate. L:W of fore wing: 105.5:39.1. L:W of hind wing: 94.1:22.3. Marginal cilia on posterior margin of proximal fore wing: present.

Metasoma

L:W of metasoma: 89.6:43.4. Sculpture of T1: longitudinally costate with uneven foveae between costae. Length of T1: 0.7× the length of T2. Horn on T1: present. Length of T2: 0.7× the length of T3. Sculpture of T2: basal foveae present followed by longitudinal costae with uneven foveae between costae. Sculpture of T3: medially punctate, remainder longitudinally costate with punctae between costae. Sculpture of T4–T6: weakly reticulate to longitudinally striate interspersed with setigerous punctae.

Male

Head and mesosoma red-brown; T1 brown-black, T2 medially yellow-brown and laterally brown-black; T3 yellow brown; T4 anteriorly yellow brown, remainder brown-black; remaining tergites black. Shape of antennomeres: elongate.

Additional material examined

1 female ( ICAR / NBAIR / P4375 ), INDIA: Karnataka: Chikkaballapur, Nandi Hills, 13.617°N 77.692°E, 1448 m, YPT, 14 August 2014; 1 female ( ICAR / NBAIR / P4376 ), Karnataka: Chikkaballapur, Nandi Hills , 13.617°N 77.692°E, 1448 m, YPT, 14 August 2014 ; 3 females ( ICAR / NBAIR / P4377 – P4379 ), Karnataka: Chikkaballapur, Nandi Hills , 13.617°N 77.692°E, 1448 m, SN, 22 December 2009 ; 1 female ( ICAR / NBAIR / P4380 ), Karnataka: Chikkaballapur, Nandi Hills , 13.617°N 77.692°E, 1448 m, SN, 28 July 2011 ; 1 female ( ICAR / NBAIR / P4381 ), Karnataka: Chikkaballapur, Nandi Hills , 13.617°N 77.692°E, 1448 m, SN, 4 August 2011 ; 1 female ( ICAR / NBAIR / P4382 ), Karnataka: Chikkaballapur, Nandi Hills , 13.617°N 77.692°E, 1448 m, SN, 18 September 2010 ; 1 female ( ICAR / NBAIR / P4383 ), Karnataka: Bengaluru, Gandhi Krishi Vignana Kendra ( GKVK), 13.073°N 77.580°E, 938 m, YPT, 20 July 2015 ; 1 female ( ICAR / NBAIR / P4384 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, YPT, 31 July 2013 ; 1 female ( ICAR / NBAIR / P4385 ), Karnataka: Bengaluru, Hebbal , National Bureau of Agricultural Insect Resources ( NBAIR), 13.027°N 77.584°E, 927 m, YPT, 02 May 2015 ; 1 female ( ICAR / NBAIR / P4386 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 30 May 2015 ; 2 females ( ICAR / NBAIR / P4387 – P4388 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 8 June 2015 ; 1 female ( ICAR / NBAIR / P4389 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 9 September 2014 ; 1 1 female ( ICAR / NBAIR / P4390 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 14 November 2014 ; 1 female ( ICAR / NBAIR / P4391 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 16 September 2014 ; 1 female ( ICAR / NBAIR / P4392 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 12 August 2013 ; 1 female ( ICAR / NBAIR / P4393 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 1 August 2015 ; 1 female ( ICAR / NBAIR / P4394 ), Karnataka: Bengaluru, Jarakabande Kaval , 13.094°N 77.543°E, 921 m, MT, 24 August 2015 ; 1 female ( ICAR / NBAIR / P4395 ), Karnataka: Bengaluru, CIFA, Hessaraghatta , 13.133°N 77.490°E, 859 m, YPT, 29 August 2013 ; 1 female ( ICAR / NBAIR / P4396 ), Karnataka: Chikkaballapur, Nandi Hills , 13.617°N 77.692°E, 1448 m, YPT, 30 July 2013 ; 1 female ( ICAR / NBAIR / P4397 ), Karnataka: Bengaluru, Adugodi , National Dairy Research Institute ( NDRI), 12.945°N 77.612°E, 887 m, SN, 23 June 2011 ; 1 female ( ICAR / NBAIR / P4398 ), Karnataka: Bengaluru, GKVK, 13.073°N 77.580°E, 938 m, PFT, 21 October 2011 ; 1 female ( ICAR / NBAIR / P4399 ), Tamil Nadu: Kodaikanal, Shenbaganur , 10.233°N 77.513°E, 1865 m, SN, 2 April 2014 ; 1 female ( ICAR / NBAIR / P4400 ), Tamil Nadu: Hosur, Uddanapalli , 12.624°N 77.924°E, 758 m, YPT, 29 November 2014.

Diagnosis

Chakra pachmarhica resembles C. pillaiyar sp. nov. but differs from it in having a short metascutellum, at most 2× as long wide as long, a wide metasoma and with striae on either side of central keel; whereas C. pillaiyar sp. nov. has a wider metascutellum, at least 8× as wide as long, a narrow metasoma and transverse striae above central keel.

Figures

Figure 12. Chakra pachmarhica (Sharma) (♀) holotype (USNMENT01109836): (a) Habitus, dorsal view; (b) frons, anterolateral view; (c) head and pleuron; (d) mesonotum and horn on T1; (e) antenna; (f) frons, frontal view; (g) type label; (h) fore wing; (i) hind wing (images courtesy of N.F. Johnson and E.J. Talamas).