taxonID	type	description	language	source
4D1287C2FFD9FF883B02FE73FC2AFB2D.taxon	description	(Figs 1 – 6)	en	Kamalanathan, Veenakumari, Mohanraj, Prashanth (2021): An Atypical, Brachypterous Species Of Idris Förster (Platygastroidea: Scelionidae) From India *. Acta Zoologica Academiae Scientiarum Hungaricae 67 (1): 7-13, DOI: 10.17109/AZH.67.1.7.2021, URL: http://dx.doi.org/10.17109/azh.67.1.7.2021
4D1287C2FFD9FF883B02FE73FC2AFB2D.taxon	materials_examined	Material examined: Holotype, female (ICAR / NBAIR / P 2693), INDIA: Tamil Nadu: Kodaikanal, Shenbaganur, 10 ° 14 ’ 01 ’’ N 77 ° 30 ’ 47 ’’ E, 1865 m, YPT, 02. IV. 2014. Paratypes: 1 fe- male, (ICAR / NBAIR / P 2694), same data as holotype; 2 males, (ICAR / NBAIR / P 2695, P 2696), same data as holotype.	en	Kamalanathan, Veenakumari, Mohanraj, Prashanth (2021): An Atypical, Brachypterous Species Of Idris Förster (Platygastroidea: Scelionidae) From India *. Acta Zoologica Academiae Scientiarum Hungaricae 67 (1): 7-13, DOI: 10.17109/AZH.67.1.7.2021, URL: http://dx.doi.org/10.17109/azh.67.1.7.2021
4D1287C2FFD9FF883B02FE73FC2AFB2D.taxon	description	Description: Female body length = 0.98 mm (m = 0.93 (0.88 – 0.98) mm, n = 2). Male body length = 0.83 mm (m = 0.85 (0.83 – 0.86) mm, n = 2). Colour (Figs 1 & 3): Head, mesosoma and T 1 dark brownish black; remainder of metasoma yellowish brown; antenna brownish black; coxa, femur and anterior 3 / 4 th of tibia blackish brown and remainder of leg brownish black. Head (Figs 1, 2, 5 & 6): Vertex and dorsal mesonotum covered with dense short white setae; head 1.23 × as wide as high and 1.3 × as high as long; IOS very short, 0.3 × width of head, 0.57 × eye length; dorsal frons rugose, antennal scrobe distinct on either side of central keel; vertex rugose; gena densely striate; anterior and posterior margins of gena parallel and converging dorsally; POL> LOL in ratio of 20.2: 15.4; posterior ocelli contiguous with orbits; distance between hyperoccipital carina and posterior margin of lateral ocellus <0.4 × MOD; posterior margin of eye touching hyperoccipital carina, densely setose, subequal in length and width; interantennal process rugose, protruding; facial striae and malar striae distinct; A 1 and clava subequal in length; A 2 3.1 × as long as A 3; A 3 subequal in length and width; clava 2 × as long as wide. Mesosoma (Figs 1, 5 & 6): Mesoscutum and mesoscutellum 0.65 × and 0.57 × as long as wide respectively; both mesoscutum and mesoscutellum with same sculpture as that on vertex; notauli absent; lateral pronotal area dorsally rugose, remainder predominantly smooth with sparse weak transverse carinae posteriorly; subacropleural sulcus and mese- pimeral sulcus foveate, speculum with deep furrows; mesopleural pit and mesopleural ca- rina distinct; ventral mesopleuron smooth with a rugose patch medially; ventral margin of mesopleuron extending as a narrow structure; metapleuron dorsally with transverse cari- nae, remainder smooth except for foveate metapleural sulcus posteriorly; paracoxal sulcus indicated as a furrow; posterior margin of mesoscutellum ‘ V’ shaped, extending over an- terior margin of T 1 hiding metascutellum and medial propodeum; posterior mesoscutel- lar sulcus foveate; propodeum triangular with vertical carinae, visible dorsolaterally, with postero-lateral corners extending as a spine; fore wing sclerite narrow extending up to T 1. Metasoma (Figs 1, 5 & 6): Metasoma 0.82 × as long as wide; T 1 distinctly visible dor- sally and strongly costate, with a triangular granular patch laterally; T 2 with anterior onethird costate; the remainder of T 2 and other tergites with granular sculpture; T 2 longest and widest of all tergites; posterior margins of T 1 and T 2 subequal; T 2 1.4 × as long as T 3; T 2 0.25 × as long as the width of its anterior margin; submarginal ridge well impressed. Male (Figs 3 & 4): Similar to female. Antenna moniliform with nine visible anten- nomeres unlike that generally found in males of Idris which have 12 antennomeres where the last two antennomeres are either fused or have a distinct constriction between them.	en	Kamalanathan, Veenakumari, Mohanraj, Prashanth (2021): An Atypical, Brachypterous Species Of Idris Förster (Platygastroidea: Scelionidae) From India *. Acta Zoologica Academiae Scientiarum Hungaricae 67 (1): 7-13, DOI: 10.17109/AZH.67.1.7.2021, URL: http://dx.doi.org/10.17109/azh.67.1.7.2021
4D1287C2FFD9FF883B02FE73FC2AFB2D.taxon	etymology	Etymology: The species epithet ‘ semiflaviventris’ refers to the yellow color of T 2 and remaining tergites in both sexes. The name is treated as an adjective.	en	Kamalanathan, Veenakumari, Mohanraj, Prashanth (2021): An Atypical, Brachypterous Species Of Idris Förster (Platygastroidea: Scelionidae) From India *. Acta Zoologica Academiae Scientiarum Hungaricae 67 (1): 7-13, DOI: 10.17109/AZH.67.1.7.2021, URL: http://dx.doi.org/10.17109/azh.67.1.7.2021
4D1287C2FFD9FF883B02FE73FC2AFB2D.taxon	diagnosis	Diagnosis: Idris semiflaviventris sp. n. is unique among all the species of Idris so far described because of the following combination of character states: both male and female are brachypterous; T 2 longer than T 3 (except I. adikeshavus species group); posterior margins of T 1 and T 2 subequal; IOS narrow, at most 0.3 × head width; male antenna with nine visible antennomeres. This com- bination of character states is not present in any other described species of Idris.	en	Kamalanathan, Veenakumari, Mohanraj, Prashanth (2021): An Atypical, Brachypterous Species Of Idris Förster (Platygastroidea: Scelionidae) From India *. Acta Zoologica Academiae Scientiarum Hungaricae 67 (1): 7-13, DOI: 10.17109/AZH.67.1.7.2021, URL: http://dx.doi.org/10.17109/azh.67.1.7.2021
4D1287C2FFD9FF883B02FE73FC2AFB2D.taxon	discussion	However, this species resembles two Indian species, I. triangularis Mukerjee and I. coorgensis (Mani et Mukerjee) in having a posteriorly extended mes- oscutellum. The salient differences between I. semiflaviventris and the other two species are T 2 longest and widest of all tergites, posterior margin of T 1 and T 2 subequal; IOS short, at most 0.3 × head width in I. semiflaviventris sp. n. while in the other two species T 3 longer and wider than T 2, posterior margin of T 1 narrower than posterior margin of T 2, IOS at least 0.6 × head width. Idris triangularis is macropterous; central keel on frons extending up to anterior ocellus; mesoscutum and mesoscutellum finely reticulate and shiny; T 2 entirely costate; whereas I. semiflaviventris sp. n. is brachypterous, central keel on frons extending half the length of frons; mesoscutum and mesoscutel- lum rugose; T 2 anteriorly costate and posteriorly rugose. Idris coorgensis was described based on a male specimen. This species is also macropterous; notaulus present; male antennomeres A 11 and A 12 with distinct constriction; mesoscutum and mesoscutellum finely reticulate; T 2 entirely costate; whereas I. semiflaviventris sp. n. is brachypterous; notaulus absent; male antennae with 9 visible antennomeres; mesoscutum and mesos- cutellum rugose; T 2 anteriorly costate and posteriorly rugose.	en	Kamalanathan, Veenakumari, Mohanraj, Prashanth (2021): An Atypical, Brachypterous Species Of Idris Förster (Platygastroidea: Scelionidae) From India *. Acta Zoologica Academiae Scientiarum Hungaricae 67 (1): 7-13, DOI: 10.17109/AZH.67.1.7.2021, URL: http://dx.doi.org/10.17109/azh.67.1.7.2021
