Dirrhope indica Ranjith, 2021

Ranjith, A. P., Samartsev, K. G. & Nasser, M., 2021, Discovery of the braconid subfamily Dirrhopinae van Achterberg (Hymenoptera Ichneumonoidea) from the Indian subcontinent with the description of a new species from south India, Zootaxa 4908 (2), pp. 251-262 : 254-258

publication ID	https://doi.org/10.11646/zootaxa.4908.2.6
publication LSID	lsid:zoobank.org:pub:1F0EAE10-0F42-4401-86B5-735C4158D739
DOI	https://doi.org/10.5281/zenodo.4448157
persistent identifier	https://treatment.plazi.org/id/03E5BC1E-3527-FFDE-FF69-4817FC2FFDE8
treatment provided by	Plazi
scientific name	Dirrhope indica Ranjith
status	sp. nov.

Treatment

Dirrhope indica Ranjith sp. nov.

Material examined: Holotype, female, “ INDIA: Kerala, Thiruvananthapuram , JNTBGRI, 06.i.2020, sweep net, coll. Ranjith, A.P. ” ( DZUC). Antenna missing.

Description. Female. Body length 1.42 mm; fore wing length 1.2 mm.

Head. Head 0.7 × as wide as its length in anterior view, almost 1.8 × its median length, 1.7 × maximum length in dorsal view; occiput strongly concave medially ( Fig. 1C View FIGURE 1 ); head behind eyes distinctly roundly narrowed ( Fig. 1C View FIGURE 1 ); length of temple 0.56 × transverse diameter of eye; ocelli in an equilateral triangle ( Fig. 1C View FIGURE 1 ); POL as long as OD, 0.3 × OOL; OD 0.3 × OOL; frons distinctly concave, with distinct median carina ( Fig. 1C View FIGURE 1 ); eye glabrous, 1.5 × as high as broad; face with distinct vertical carina ( Fig. 1B View FIGURE 1 ); width of face 0.8 × height of eye and 1.3 × height of face; malar space height 0.12 × height of eye, 0.6 × basal width of mandible; clypeal suture deep and complete ( Fig. 1B View FIGURE 1 ); clypeus convex, roundly convex on lower margin ( Fig. 1B View FIGURE 1 ); width of clypeus 1.8 × its height; maxillary palps 0.7 × height of head, third palpomere 3.0 × as long as wide; antenna missing.

Mesosoma. Mesosoma 1.9 × as long as its height; lateral depression of pronotum narrow, deep and crenulate ( Fig. 1E View FIGURE 1 ); notauli distinct anteriorly, absent posteriorly ( Fig. 1D View FIGURE 1 ); prescutellar depression shallow and short, with median carina, smooth-crenulate, about 0.25 × as long as scutellum ( Fig. 1D View FIGURE 1 ); scutellum almost flat, without lateral carinae and without transverse posterior depression ( Fig. 1D View FIGURE 1 ); prepectal carina distinct ( Fig. 1E View FIGURE 1 ); precoxal sulcus indistinct ( Fig. 1E View FIGURE 1 ); mesopleuron with rather long oblique smooth furrow in medioposterior part ( Fig. 1E View FIGURE 1 ); propodeum angularly narrowed posteriorly (lateral view) ( Fig. 1E View FIGURE 1 ).

Legs. Hind femur 2.9 × as long as wide; hind tibia strongly widened apically, its length 5.0 × maximum width, 1.25 × length of hind femur; maximum width of hind tibia 0.82 × width of hind femur; inner spur of hind tibia 0.5 × as long as basitarsus; hind tarsus almost as long as hind tibia.

Wings. Length of fore wing 2.3 × its maximum width; pterostigma wide and short, 2.0 × as long as wide, as long as 1-R1; vein r arising almost from middle of pterostigma; sclerotised part of 3-SR 3.2 × as long as r, 1.4 × 2-SR; vein 2-SR sinuate ( Fig. 2C View FIGURE 2 ); vein r 0.9 × as long as maximum width of pterostigma; vein m-cu 1.6 × as long as 2-SR+M, 0.45 × 2-SR; vein 1-CU1 1.6 × length of cu-a; length of hind wing 4.0 × its width; C+SC+R 0.58 × 1- SC+R; M+CU 1.7 × 1-M; hind wing with marginal cell in basal one-third weakly narrowed, with unsclerotised r.

Metasoma. Metasoma 0.6 × as long as mesosoma; first tergite narrow, with short medial furrow basally, almost parallel-sided in apical half, with distinct spiracular tubercles slightly behind middle of tergite ( Fig. 2A View FIGURE 2 ); length of first tergite 2.4 × its apical width; second tergite with two shallow weak oblique furrows ( Fig. 2A View FIGURE 2 ); length of second tergite 0.4 × its basal width, 1.4 × length of third tergite; ovipositor sheath short, setose, rounded apically, about 0.4 × as long as first tergite ( Fig. 2B View FIGURE 2 ).

Sculpture and pubescence. Vertex with distinct transverse striae, long setose laterally and sublaterally ( Fig. 1C View FIGURE 1 ); frons with distinct dense semicircular striae ( Fig. 1C View FIGURE 1 ); face finely and entirely granulate, long setose ( Fig. 1B View FIGURE 1 ); temple with longitudinal striae ( Fig. 1E View FIGURE 1 ); middle lobe of mesoscutum rugose anteriorly with long striations posteriorly, lateral lobes of mesoscutum granulate ( Fig. 1D View FIGURE 1 ); scutellum smooth ( Fig. 1D View FIGURE 1 ); mesopleuron smooth, faintly granulate anteriorly ( Fig. 1E View FIGURE 1 ); metapleuron granulate ( Fig. 1E View FIGURE 1 ); propodeum granulate or coriaceous, with distinct marginate areas ( Fig. 1F View FIGURE 1 ); areola rather narrow and pentagonal, distinctly narrowing posteriorly ( Fig. 1F View FIGURE 1 ); median carina 1.6 × as long as fork; first tergite of metasoma mostly rugulose.

Colour. Body yellow except eye, mandible apically, ocellar area, pterostigma, fore wing veins r and 2-SR, ovipositor sheath apically light brown to dark brown, area below pterostigma infuscated.

Male. Unknown.

Biology. Unknown.

Distribution. India ( Kerala).

Comparative diagnosis. The new species, Dirrhope indica comes close to D. minor in having propodeum without sublateral cells near areola. We consider this to be a new species given the differences listed in the key and a number of other differences from D. minor ; mesosoma 1.9 × as long as high (1.5 × as long as high in D. minor ), propodeal areola narrowing apically (parallel-sided in D. minor ), mesosoma 1.9 × as long as high (1.5 × as long as high in D. minor ), sclerotised part of fore wing vein 3-SR 3.2 × as long as r (sclerotised part of fore wing vein 3-SR 2 × as long as vein r in D. minor ), fore wing shorter than body (fore wing longer than body in D. minor ), fore wing vein cu-a 0.6 × as long as 1-CU1 (vein cu-a as long as 1-CU 1 in D. minor ).