Charmon thailandensis Loncle, Quicke & Butcher 2022, sp. nov.
Creators: name: Loncle, Marisa K.
name: Quicke, Donald L. J.
name: Deowanish, Sureerat
name: Butcher, Buntika A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Charmon
Charmon thailandensis

description: Charmon thailandensis Loncle, Quicke & Butcher, sp. nov.
urn:lsid:zoobank.org:pub: D769BFF6-3F73-470B-A6E0-8CF2CCC58AF9
(Figs 2-4)
Material examined. HOLOTYPE female THAILAND, Nan province, Doi Phu Kha NP, 19° 12.866′ N, 101° 04.400′ E, 03.iv.2019, M.V. light trap, col. M.K. Loncle, deposited at Insect Collections of Chulalongkorn University, Bangkok, Thailand (CUMZ).
Description. Holotype female. Length of body 2.6 mm, fore wing 2.5 mm, hind wing 1.6 mm, ovipositor 3.8 mm.
Head. Antenna with 35 flagellomeres. First flagellomere 1.6 × longer than 2 nd but 1.8 × shorter than 3 rd. Width of head: width of face: height of eye = 2.2: 1.1: 1.0. Shortest distance between posterior ocelli: transverse diameter of posterior ocellus: shortest distance between posterior ocellus and eye = 1.0: 2.0: 4.0. Length of face 1.5 × width of face. Clypeus transverse 2 × wider than high; without conspicuous row of marginal pits. Head, vertex, and face shine and smooth, frons with sparsely setae. Occipital carina complete and strongly concave dorsally. Malar suture weak. Internal margin of eyes barely emarginated. Ocelli small. Lower part of clypeus with a weak row of setae.
Mesosoma. Mesosoma 1.8 × longer than high. Thorax shiny and smooth largely glabrous; notauli not impressed; scutellar sulcus shallow; scutellum with a small but distinct carina posteriorly. Propodeum striated with two parallel longitudinal submedial carinae; sparsely setose.
Wings. Fore wing. Second submarginal cell open (rs-m absent); vein M+Cu tubular and brown pigmented; vein 1cu-a distinctly postfurcal to 1M, almost 3 × shorter than 1Cu. Hind wing. Base of hind wing evenly setose. Lengths of hind wing veins 1-rm: SC+R = 1.0: 2.5, vein r absent.
Legs. Claws with small acutely pointed basal lobe. Lengths of fore femur: tibia: tarsus = 1.0: 1.2: 1.3. Lengths of hind femur: tibia: tarsus = 1.0: 1.5: 1.3. Hind femur 10.8× longer than wide (deep) Hind basitarsus 8.5× longer than wide.
Metasoma. First tergite widening posteriorly, 1.5 × longer than maximally wide, with two percurrent longitudinal carinae, coarsely longitudinally striate, all remaining tergites smooth and weakly sclerotised. 6 th tergite with with setae at the tip. Ovipositor longer than body length, 3.7 × longer than hind tibia and 1.5 × longer than fore wing.
Colour. Antenna brown. Head ochraceous yellow except for small mark around stemmaticum, black. Mesosoma largely yellow except propodeum and metapleuron, dark brown. Legs yellow. Metasoma tergites dark brown, hypopygium orange to brown. Ovipositor yellow. Wings hyaline with light brown pterostigma.
Distribution. Known only from the type-locality Doi Phu Kha NP, Thailand.
Host. Unknown.
Habitat. The new species was collected from a UV light trapping in the mixed deciduous montane dipterocarp forest during the summer season of Thailand.
Etymology. Named after type country.
Diagnosis. Fore wing 1RS absent, 1M and (RS+M)a separated at parastigma, hind wing vein a absent, pterostigma brown. Apical segment of antenna with apical spine. Ocelli small, diameter at most about as long as post-ocellar line. Third segment of labial palp equal in length to the second segment. Head yellowish-orange, legs yellowish, body orange-dark brown, propodeum with a U-shaped carina posteriorly; metasoma entirely smooth, except for first metasomal tergite, longitudinally striate and sparsely hair on the face, inner margin of eyes weakly emarginate.
The new species runs to couplet 5 in Rousse (2013) and it can be differentiated from C. extensor using the following key:
5. 1cu-a longer than 1Cu; M+Cu basally complete............................................................ 5a
5a. Antennae with 44 flagellomeres; notauli absent; scutellum smooth without notauli; propodeum smooth with some microsculpture medio-basally; fore wing 1RS indistinct; body colour dark reddish-brown; mandibles, prothorax, some part of metapleuron, ventral metasoma, legs and ovipositor yellowish; pterostigma and wing vein dark brown............ C. extensor (L., 1758)
- Antennae with 35 flagellomeres; notauli very shallow; scutellum with small carina posteriorly (Fig. 3B); propodeum coarsely areolate (Fig. 3E); fore wing 1RS absent (Fig. 4A, C); body colour ochraceous yellow except for propodeum, 1 st and 3 rd- 6 th metasoma tergites dark brown dorsally; pterostigma and wing veins, pale brown (Fig. 2A);....... C. thailandensis sp.nov.
description: Published as part of Loncle, Marisa K., Quicke, Donald L. J., Deowanish, Sureerat & Butcher, Buntika A., 2022, The first record of Charmon Haliday, 1833 (Braconidae: Charmontinae) from Southeast Asia with description of a new species from Thailand, pp. 93-100 in Zootaxa 5213 (1) on pages 95-97, DOI: 10.11646/zootaxa.5213.1.7, http://zenodo.org/record/7350191