Hadronotus taraka Veenakumari, 2024

Kamalanathan, Veenakumari, Kolla, Sreedevi, Khan, Farmanur Rahman & Mohanraj, Prashanth, 2024, Hadronotus insulare species group (Hymenoptera: Platygastroidea: Scelionidae) with descriptions of new species from India, Journal of Natural History 58 (45 - 48), pp. 2121-2187 : 2169-2171

Hadronotus taraka Veenakumari sp. n.

http://www.zoobank.org/ urn:lsid:zoobank.org:pub:B02DAA21-162E-470C-B90F-E2D6F7EEEB10

( Figures 18 (a–g), 27(a))

Female body length = 1.50 mm (n = 1).

Colour. Head, mesosoma and metasoma black; all coxae brown-black, remainder of leg brown; clypeus and mandible red-brown except black-brown mandibular teeth; radicle yellow-brown; A1–A2 brown-black, A3–A6 paler than preceding antennomeres; A7–A12 black-brown.

Head. 1.5× as wide as high, 1.3× as high as long. IOS: 0.6× head width, 1.2× eye length. POL: LOL: OOL: 25.4: 13.8: 1.8. OOL: 0.7× MOD. Compound eye: ovate (L: W = 26.5: 20.0). Sculpture of orbital furrow: dorsally foveate, ventrally rugose. Inner orbits in frontal view: almost parallel to each other. Central keel on frons: present, extending 0.7× length of frontal depression. Malar sulcus: with rectangular rugose depressions. Shape of frontal depression: ovoid. L: W of frontal depression: 26.9: 23.2. Width of frontal depression: 0.7× IOS. Sculpture of frontal depression: transversely carinate, space between carinae smooth; in ventral 2/3 polygonal cells present on either side of transverse carinae. Submedian carina of frontal depression: restricted to dorsal half. AOD in dorsal view: 3.9× OOL. Sculpture of frons sans frontal depression: polygonal cells with rugose sculpture, setose. Sculpture of vertex: polygonal cells with rugose sculpture, setose. Hyperoccipital carina: present. Sculpture of gena: polygonal cells with rugose sculpture.

Mesosoma. L: W of mesoscutum: 23.4: 43.6. Sculpture of mesoscutum: polygonal cells with rugose sculpture, densely setose. Scutoscutellar sulcus: foveate. L: W of mesoscutellum: 16.3: 40.1. Sculpture of mesoscutellum: polygonal cells with rugose sculpture, setose posterolaterally. Posterior mesoscutellar sulcus: foveate. Sculpture of metascutellum: foveate, weakly bidentate. Posterior margin of metascutellum: bidentate. Sculpture of metanotal trough: foveate. Lateral propodeal area: laterally wide and narrowing centrad. Sculpture of lateral propodeal area: with depressions. Posterior propodeal projection: short, pointing posteriorly. Pronotal cervical sulcus: with depressions. Sculpture of lateral pronotal area: dorsally rugose, ventrally transversely carinate. Prespecular sulcus: foveate. Sculpture of speculum: transversely carinate, interspersed with sparse foveae. Femoral depression: with rectangular depressions. Episternal sulcus: foveate. Postacetabular sulcus: indicated with depressions. Mesepimeral sulcus: foveate. Sculpture of posterior mesepimeral area: a small narrow smooth area indicated dorsally. Mesopleural carina: absent. Mesopleural pit: present. Metapleural sulcus: with depressions. Sculpture of dorsal metapleural area: foveate, very sparsely setose. Sculpture of ventral metapleural area: with irregular foveae, sparsely setose. Paracoxal sulcus: with depressions. L: W of fore wing: 87.5: 35.9. Ratio of length of m: st: pm: 3.1: 9.1: 4.7. L: W of hind wing: 80.2: 21.4. Length of hind wing marginal cilia: 0.20× width of wing. Shape of submarginalis: straight, adjoining anterior margin of wing in basal half, and dips before reaching marginalis.

Metasoma. L: W of metasoma: 54.2: 45.8, 1.2 × as long as wide. Anterior margin of T1: weakly projecting medially and laterally. Basal foveae on T1: present. Sculpture of T1: longitudinally costate, space between costae rugose; posteromedially smooth. Sculpture of T2: anteriorly with narrow elongate cells with smooth areas; remainder irregularly areolate, interspersed with longitudinal carinae; basal foveae absent. Length of T2: 5× length of T3. Sculpture of T3–T4: anteriorly areolate and posteriorly smooth. Setation of metasoma: densely setose laterally and sparsely setose posteriorly.

Male. Unknown.

Material examined

Holotype, female ( ICAR / NBAIR / P4941 ), INDIA: Tamil Nadu: Chidambaram, Annamalai University, Agriculture College , 11.390° N 79.714° E, ca 20 m, YPT in spice plot, 2 July 2016.

Etymology

The species epithet is the name of the goddess ‘taraka’, consort of the Hindu god Brihaspati. The name is treated as a noun in apposition.

Diagnosis

Hadronotus taraka is similar to H. stupa sp. n. The distinguishing characters are given above under the latter species.

Figures

Figure 18. Hadronotus taraka sp. n., female. (a) Habitus (dorsal view); (b) antennae; (c) head and pleuron; (d) vertex; (e) wings; (f) frons; (g) head and mesonotum.