Academic editor: Gavin Broad
Two new species of the genus
Zheng X-F, Reshchikov A, Liu J-X (2021) Two new species of
In the present study, two species are described as new to science:
The specimens examined are deposited in the following institutions (curators in parenthesis):
The specimens of
Specimens were examined using the Zeiss Stemi 508 stereomicroscope. Images were acquired digitally using the KEYENCE VHX-5000 Digital Microscope Imaging System, Leica S8APO Digital Microscope System and processed with Adobe Photoshop.
Morphological terminology and nomenclature of wing venation follows
Genomic DNA of the new species was extracted from two females and one male using DNeasy Blood and Tissue Kit (Qiagen, Hilden, Germany), following a non-destructive DNA extraction protocol as described in
Following the non-destructive extraction of DNA, the three specimens were identified as two new species:
Fore wing length 6.0–9.0 mm. Body with punctures rather sharp and dense. Combined face and clypeus weakly convex; upper margin of face produced medially as an acute triangle between bases of antennae (except
Palaearctic, Oriental, Australian and Afrotropical regions (Fig.
Parasitoids of
1 | Latero-median longitudinal carinae of T2 either absent, only present on anterior 0.3 of the tergite, or present as foveolate lines (Fig. A) |
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– | Latero-median longitudinal carinae of T2 strong and reaching the posterior margin of the tergite (Fig. B) |
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2 | T2 medially with a pair of foveolate lines at base; T3 to T5 medially with a depressed triangular area at base; fore wing with 1cu-a oblique and almost opposite to M&RS; hind tibia entirely reddish brown without white or yellow band; upper margin of pronotum yellow; T4 with a yellow band posteriorly (Fig. A) |
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– | T2 medially either without foveolate lines or carinae, or anteriorly with a pair of short latero-median longitudinal carinae; T3 to T5 without depressed triangular area at base; fore wing with 1cu-a distinctly distad of M&RS; hind tibia reddish brown with a sub-basal white or yellow band; upper margin of pronotum reddish brown or entirely black; T4 without a yellow band (Fig. B) |
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3 | Upper margin of face not produced backward as inter-antennal projection; area superomedia of propodeum polished and glabrous; T2 with a pair of short latero-median longitudinal carinae on anterior 0.3 of tergite (Fig. A); T3 evenly reddish brown |
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– | Upper margin of face produced backward forming an inter-antennal projection; area superomedia of propodeum with several transverse wrinkles; T2 without a pair of short latero-median longitudinal carinae (Fig. B); T3 posteriorly with a wide yellow band |
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4 | T3 without latero-median longitudinal carinae (Fig. A) |
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– | T3 with latero-median longitudinal carinae (Fig. B) |
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5 | T2 to T6 transverse, roughly wrinkled and punctate; metasoma black, T1 to T6 with their apical margins reddish–brown; femora black with apex yellow; all tibiae yellow |
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– | T2 to T6 not transverse, punctate; metasoma with T1 and T2 black, T3 to T6 reddish; femora entirely black, fore tibia reddish-brown, mid and hind tibia black |
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6 | Posterior transverse carina of propodeum complete (Fig. A); fore wing with 1cu-a opposite to M&RS; T3 with a pair of latero-median longitudinal carinae on anterior half (Fig. A), T4 without carina; T1–T3 usually red, T5 posteriorly with round white spot |
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– | Posterior transverse carina of propodeum incomplete, dorso-medially absent (Fig. B); fore-wing with 1cu-a distinctly distad of M&RS; both T3 and T4 with a single median longitudinal carina (Fig. B) |
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7 | Metasoma mainly blackish–brown, T1 with a pair of triangular yellow spots on latero-posterior corners; T2 with a yellow band on posterior 0.2–0.4 which is interrupted by latero-median longitudinal carinae (Fig. A) |
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– | Metasoma mainly reddish, T1 black with a pair of yellow spots on latero-posterior corners, T2 with anterior half black and posterior half reddish (Fig. B) |
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China: 1 male, Shanxi province, Mt. Lishan, Xiahe Protection Area,
The specimen from China is slightly different from the holotype in having the third metasomal tergite blackish–brown and medially longitudinally convex, and the fourth tergite light reddish-brown (Fig.
China (Shanxi Province), Russia, Japan.
Female. Fore wing length 7.5 mm, body length 8.0 mm (Fig.
China (Yunnan province).
This species is similar to
It also very resembles
The species is named after the type locality, Chamagudao, which means the Ancient Tea Horse Road of Yunnan province.
Holotype. Female, fore wing length 7.5 mm, body length 9.0 mm (Fig.
T2 of a female paratype, with a pair of short carinae on anterior 0.4 of tergite. Pronotum largely black with upper margin tinged with indistinct dark reddish-brown. Mesopleuron weakly marked with dark reddish-brown.
Thailand (Chiang Mai).
This species can be separated from other species of the genus by the following combined characters: the upper margin of face not produced medially as an acute triangle between bases of antennae (Fig.
The species is named after Mr. Kenneth Rimdahl, the founder of Monsoon Tea, in recognition of his efforts in saving Thai forests.
In most species of
Because of the lack of fresh material for the known species of
The scattered worldwide distribution of the genus
The authors are deeply grateful to the team of Monsoon Tea and its founder Kenneth Rimdahl for assistance in sampling in Northern Thailand; William Persson for type locality photography, Wang Peng for his kind help in field work in Yunnan; Ren Ya-Jun (South China Agricultural University) for collecting the specimens from Shanxi; Chi-Feng Lee (
fasta file of COI sequences of some species
sequence of COI
COI sequences of different individual speciemns from the two new species.