Trimorus (Lochana) satyaki Veenakumari, 2022

Veenakumari, Kamalanathan, Keloth, Rajmohana, Sreedevi, Kolla, Kumar, P. Girish & Mohanraj, Prashanth, 2022, Replacement name for the homonym of subgenus Trimorus (Neotrimorus) (Hymenoptera: Platygastroidea: Scelionidae) with description of two new species from India, Journal of Natural History 56 (41 - 44), pp. 1709-1725 : 1716-1721

Trimorus (Lochana) satyaki Veenakumari sp. nov.

( Figures 4 a– c , 5a–g , 6a–c )

urn:lsid:zoobank.org:act:56E11022-0728-445D-B586-C1BB3C2F8C03

Description

Female body length = 1.43–1.97 mm (n = 15); male body length = 1.38–1.54 (n = 5).

Colour. Head black; mesoscutum black, with posterolateral margins dark brown; mesoscutellum black with posterior margin brown with traces of yellow; metascutellum and metanotal trough dark brown; medial mesoscutal spine black with yellow-brown apical tip; medial metascutellar spine basally black, remainder yellow; posterior propodeal projections basally black, remainder yellow-brown; metasoma black except for red and yellow hue on T1 and anterior T2; lateral pronotal area entirely black except for a brown patch ventrally; mesopleuron and metapleuron black-brown, with a small yellow patch ventrally; legs yellow; radicle and basal 1/4 of A1 yellow; remainder of A1 dark brown; A2 yellow-brown; A3–A6 yellow; A7 basally brown, remainder black-brown; A8–A11 black, A12 brown-black.

Head

Head 1.1× wider than high, 2.3× as high as long; IOS 0.6× head width, 0.9× eye length; POL> OOL> LOL in ratio of 9.8:7.8:5.2; OOL 2.6× OD; eye very long and narrow, 1.9× as long as wide (L:W = 38.2:20.4), densely setose; orbital carina distinct except ventrally; frons smooth, with setigerous punctae; facial striae progressively increasing in length laterad, reaching vertex; central keel distinct, extending up to anterior ocellus; antennal scrobe above toruli present, glabrous; torular triangle sparsely setose; a blunt hyperoccipital carina indicated; vertex setigerous punctate without a medial depression; occipital carina not foveate; gena dorsally very narrow, <0.4× eye width, setigerous punctae; clypeus triangular with transverse carinae in dorsal half; mandible tridentate, upper tooth longer than the lower teeth; malar striae sparse; interantennal process elongate and truncate; radicle short, 0.07× length of A1; A2 0.8× length of A3, A2 0.7× length of A4; clava (L:W = 40.4:9.5) with six clavomeres.

Mesosoma

Mesonotum convex; mesoscutum (L:W = 31.3:47.4) entirely with dense setigerous punctae except for imbricate sculpture posteromedially; mesoscutellum (L:W = 14.4:35.4) setigerous punctate; mesoscutal suprahumeral sulcus foveate; mesoscutal humeral sulcus indicated by a carina; medial mesoscutellar spine with longitudinal carinae; posterior mesoscutellar sulcus foveate; scutoscutellar sulcus laterally foveate; metascutellum foveate; metanotal trough foveate; medial metascutellar spine longitudinally carinate, elongate, 1.8× the length of medial mesoscutellar spine; epomial carina not distinct; lateral pronotal area medially smooth and setigerous punctate anteriorly, dorsally and posteriorly; netrion sulcus indicated ventrally; speculum of mesopleuron with a semicircular carina; prespecular sulcus indicated by round foveae; mesopleural pit present; mesopleural carina distinct, with a row of foveae on posterior margin; femoral depression with transverse carinae with narrow depressions between them; mesepimeral sulcus present as short round foveae in dorsal half; ventral mesopleuron with shallow round depressions; anterior margins of mesopleuron and metapleuron with dense setae; paracoxal sulcus and ventral metapleural sulcus foveate without strong transverse carinae between them, instead a smooth area present; lateral propodeal area foveate on anterior margin, with longitudinal carina hidden beneath dense setae, posterior propodeal projections smooth, 0.7× length of metascutellar spine. Fore wing (L:W = 147.4:54.1) and hind wing (L: W = 117.8:291) hyaline; stigmalis present at an angle to marginalis.

Metasoma

(L:W = 77.2:47.5); T1 longitudinally costate; T2 with elongate basal foveae, longitudinally costate, posteriorly smooth; T3 with small basal foveae and longitudinal costae medially, extending 0.7× length of tergite, posteriorly smooth; T4 medially smooth with weak reticulations laterally; remaining tergites smooth with setae; T2–T4 with sparse lateral patch; T1 elongate, 0.8× length of T2, T2 0.4× length of T3.

Male

Similar to female.

Material examined

Holotype: female ( ICAR / NBAIR / P4310 ), INDIA: Karnataka: Mudigere, College of Horticulture , 13.115°N 75.632°E, 976 m, SN, 30 September 2015 . Paratypes: 12 females ( ICAR / NBAIR /P4332–P4340, P4350–P4352), Karnataka: Mudigere, College of Horticulture, coconut plantation, 13.115°N 75.632°E, 976 m, YPT, 30 September 2015; 7 females ( ICAR / NBAIR /P4341–P4347), Karnataka: Mudigere, College of Horticulture, 13.115°N 75.632°E, 976 m, YPT, 2 October 2015; 2 females ( ICAR / NBAIR /P4348–P4349), Karnataka: Mudigere, College of Horticulture, 13.115°N 75.632°E, 976 m, MT, 28 September 2015; 6 males ( ICAR / NBAIR /P4353–P4358), Karnataka: Mudigere, College of Horticulture, coconut plantation, 13.115°N 75.632°E, 976 m, YPT, 30 September 2015; 6 males ( ICAR / NBAIR /P4359–P4364), Karnataka: Mudigere, College of Horticulture, 13.115°N 75.632°E, 976 m, YPT, 2 October 2015.

Etymology

This species is named ‘Satyaki’, after the great Yadava warrior in the Indian epic Mahabharatha, who fought with the Pandavas and defeated many Kaurava warriors in the great Kurukshetra war. The name is treated as a noun in apposition.

Diagnosis

Trimorus (Lochana) satyaki sp. nov. is similar to T. (L.) karna sp. nov. The distinguishing characters are given above under the latter species.

Images of the holotypes of T. (L.) scutellospinosus ( Figures 7a–e ), T. (L.) spinostriatus ( Figures 8a–d ), and T. (L.) ferrari ( Figures 9a–f ) are provided.

Figures

Figure 4. Trimorus (Lochana) satyaki sp. nov., female. (a) Habitus (dorsal view); (b) habitus (lateral view); (c) antennae.

Figure 5. Trimorus (Lochana) satyaki sp. nov., female.(a) Head and mesoscutum;(b) frons;(c) head and pleuron; (d) wings; (e) S3 showing basal depressions and dense punctae; (f) mandible with unequal teeth; (g) metasoma.

Figure 6. Trimorus (Lochana) satyaki sp. nov., male. (a) Habitus (dorsal view); (b) habitus (lateral view); (c) antenna.

Figure 7. Trimorus (Lochana) scutellospinosus (Rajmohana and Narendran 1997), male. (a) Habitus; (b) head and pleuron; (c) antennae; (d) frons; (e) metasoma.

Figure 8. Trimorus (Lochana) spinostriatus (Rajmohana and Narendran 1997), female (a) Habitus; (b) antenna; (c) head and pleuron; (d) frons.

Figure 9. Trimorus (Lochana) ferrari (Veenakumari and Rajmohana 2013), male. (a) Head and mesoscutum (dorsal view); (b) frons; (c) head and lateral pronotal area; (d) head and mesosoma (lateral view); (e) pleuron; (f) metasoma.