Conostigmus khonomaensis Ghosh, Tyagi & Kumar, 2025

Conostigmus khonomaensis Ghosh, Tyagi & Kumar sp. nov.

Diagnosis. This species is distinguished by the following combination of characters: preoccipital carina present; preoccipital furrow located inside the ocellar triangle, but ends posterior to the anterior ocellus; mesoscutellum almost 0.8 × as wide as long, and limited by a U-shaped carina; sternaulus elongated; gastral carinae reaching up to one third of syntergum length; distal margin of sternite IX (S9) of male convex; proximolateral corner of S9 of male blunt; distal margin of harpe acute or pointed; parossiculus count 2, parossiculus not fused with gonostipes; 2 gonossiculus spines present with almost equal lengths.

Etymology. The species is named after the village Khonoma in Nagaland, India, which is renowned for its rich biodiversity and community led conservation initiatives.

Material examined.

Holotype INDIA: 1 ♂; Nagaland, Khonoma ( 25.650°N 94.033°E); yellow pan trap, 04.xi.2021 ( Reg. No. CDT/ MSD/ HZSI _02), coll. A. Rameshkumar; deposited at NZC, Kolkata. GoogleMaps

Paratype INDIA: 1 ♂; Nagaland, Khonoma ( 25.650°N 94.033°E); yellow pan trap, 04.xi.2021 ( Reg. No. CDT/ MSD/ HZSI _03), coll. A. Rameshkumar; deposited at NZC, Kolkata GoogleMaps .

Description. Male. Body length: 1.7–1.96 × (1.96) mm.

Colouration. Body colour brown with hue pattern: head and mesosoma dark brown; metasoma light brown; mandibles brown; palps yellow; scape yellow to brown, pedicel and F1–F9 brown; legs yellow; pterostigma, costal vein, radial vein brown; marginal fringes of wings light brown; body pubescence light brown; male genitalia brown. Colour intensity pattern: antennal segments darker than pterostigma, costal vein, and radial vein; metasoma lighter than mesosoma ( Fig. 2a View FIGURE 2 ).

Antennae ( Fig. 2a View FIGURE 2 ). Antennae very long and slender, but slightly longer than the total body length; scape nearly 4.9 × as long as wide; pedicel small and almost globular; A3 highly slender, nearly 5.6 × as long as wide, smaller scape; flagellar segments quasi cylindrical; pubescence shorter than breadth of segments; length/width measurements of antennal segments: scape (304/61), pedicel (77/39), A3 (224/40), A4 (200/40), A5 (182/45), A6 (174/47), A7 (163/48), A8 (177/44), A9 (145/42), A10 (154/44), A11 (206/54).

Head ( Fig. 2b View FIGURE 2 ). Head about 1.11–1.14 × (1.14) wider than mesosoma in dorsal view. Maximum eye diameter vs. minimum eye diameter: 1.16–1.2 × (1.2). Lateral ocellar length (LOL): ocular ocellar length (OOL) = 0.4–0.44 × (0.44). Lateral ocellar length (LOL): posterior ocellar length (POL) = 0.88–0.95 × (0.95). Ocular ocellar length (OOL): posterior ocellar length (POL) = 2.3–2.33 × (2.3). OOL: POL: LOL = 2.45:1.05:1.0. Head circular in shape in anterior view. Preoccipital furrow present. Preoccipital furrow extending into the ocellar triangle and reaching up to the posterior end of anterior ocellus. Occipital carina present. Occipital carina complete and crenulate. Intertorular area present. Intertorular carina present. Median process on intertorular carina present. Median process on intertorular carina acute in shape. Facial pit present. Ocellar foveae present, and ocellar foveae width less than ocellus diameter.

Mesosoma ( Fig. 2c, d View FIGURE 2 ). Mesosoma slightly narrow and 1.53–1.77 × (1.77) as long as wide. Anterior mesoscutal width/ Posterior mesoscutal width = 0.72–0.75 × (0.75). Mesoscutum 1.62–1.69 × (1.69) wider than long. Transscutal articulation evident. Notaulus present and complete.Notaulus posterior end adjacent to transscutal articulation, posterior end of notaulus not curved and not adjacent to median mesoscutal sulcus. Median mesoscutal sulcus present and complete. Median mesoscutal sulcus posterior end adjacent to transscutal articulation. Scutoscutellar sulcus present. Scutoscutellar sulcus versus transscutal articulation adjacent to each other. Scutoscutellar sulcus angled medially, foveolate. Mesoscutellum almost 0.8–0.9 × (0.8) wider than long, limited by a U-shaped carina. Sternaulus present. Sternaulus elongate. Anterior mesopleural sulcus distinct and foveolate. Pleural pit present. Lateral propodeal carina inverted Y-shaped. Anteromedian projection of the metanoto-propodeo-metapecto-mesopectal complex absent.

Forewing: ( Fig. 2a View FIGURE 2 ). Total wing length 1.33 mm. Pterostigma semi-circular and 2.4–2.6 × (2.4) longer than wide. Radius slightly curved and 1.64 × the length of pterostigma; basal part of fore wing with less hairs, apical part with dense pubescence.

Metasoma. Metasoma 1.85–1.94 × (1.94) longer than wide. Transverse carina on petiole straight. Syntergum smooth, longer (1.15 ×) than wide. Gastral carinae present and reaching upto 1/3 of syntergum length. Syntergal translucent patch present. Syntergal translucent patch crescent in shape. Rest of tergites smooth, but with sparse hairs.

Male genitalia ( Fig. 3a–c View FIGURE 3 ). Distal margin of male sternite IX convex. Proximolateral corner of male sternite IX blunt. Cupula less than half the length of gonostyle/volsella complex (gs-vl) in lateral view. Dorsomedial margin of gonostyle/volsella complex straight without a median projection. Proximodorsal notch of cupula present. Proximodorsal notch of cupula arched (inverted U-shaped). Proximodorsal notch of cupula longer than wide. Proximolateral projection of the cupula blunt. Harpe simple and not bilobed. Harpe oriented medially. Harpe shorter than gonostipes. Distal margin of harpe pointed in both dorsal and lateral view. Lateral setae of harpe present. Lateral setae of harpe oriented distally. Distoventral edge of the harpe with dense patch of setae. Distal setae on harpe not of equal length, longer setae present on distodorsal apex of harpe. Parossiculus not fused with the gonostipes. Gonossiculus and gonossiculus spine present. Gonossiculus spine count: 2. Gonossiculus spines subequal in length. Penisvalva curved ventrally.

Female Unknown.

Biology Unknown.