Corresponding authors: Meicai Wei (
Academic editor: Michael Ohl
The
In the
The specimens were examined with a Motic-SMZ-171 stereomicroscope. Adult images were taken with a Nikon D700 digital camera and focus-stacked using Helicon Focus (HeliconSoft, Kharkiv, Ukraine). All images were further processed with Adobe Photoshop CS 11.0.
Morphological descriptions of these new species are based on the holotype. The terminology of genitalia follows
The specimens examined in this study, including the holotype and paratypes of three new species, are deposited in the Insect Collection of Central South University of Forestry and Technology, Changsha, Hunan, China (
Body black without metallic luster; posterior margin of metepimeron with a distinct appendage, appendage strongly elongated and polished, without long hairs; antennae and all trochanters black entirely; lancet narrow and long, with 20–21 serrulae, serrulae somewhat oblique, almost linear, middle serrulae each with 2 proximal and 12 or so distal teeth, subbasal teeth somewhat small and clear. This species group is a small lineage of
Body slender; black, always with a few white maculae on mandibles and subbasal part on dorsal side of hind tibia; sometimes with a few white maculae on anterior of fore femur and anterior largely of fore tibia; stigma and veins black; usually apical 1/3 of below stigma with smoky macula; clypeus slightly broader than the shortest distance between lower inner orbits; lateral margins convergent forwards, anterior margin shallowly incised to approximately 1/5–1/4 length of clypeus, apex of lateral lobe obtuse; malar space narrower than diameter of an ocellus; postocellar area broader than long; antenna slender, antennomere III clearly longer than antennomere IV, as long as antennomeres IV–V together; mesoscutellum rounded and elevated; mesoscutellar appendage with a high and acute middle carina; posttergite with a low and short middle carina; dorsal margin of mesepimeron with a distinct platform, as broad as diameter of an ocellus; posterior margin of metepimeron with a distinct appendage, appendage strongly elongated and polished, without long hairs and basin; anal cell of fore wing shortly constricted at approximately basal 1/4, with a long spot-like vein; anal cell of hind wing petiolate; inner spur of hind leg slightly longer than 1/2 length of metabasitarsus, metabasitarsus always slender, slightly longer than following four tarsomeres together; claw with inner tooth slightly shorter than outer tooth; dorsal side of head densely punctured; mesoscutellum densely or somewhat densely punctured; abdominal terga without reticulate microsculpture; penis valve longer than broad, harp narrow towards apex, ergot short.
So far, the
The
1 | Basal 2/3 of fore wing hyaline, apical 1/3 of below stigma with smoky macula (Figs |
2 |
– | Fore wing hyaline, without smoky macula (Figs |
4 |
2 | Metepimeronal appendage somewhat narrow and long, very shiny and smooth, without punctures or long hairs (Fig. |
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– | Metepimeronal appendage usually broad and shallow, less shiny, with somewhat dense fine punctures and long hairs; mesoscutellum as high as top of mesonotum | 3 |
3 | Postocellar area 1.9× broader than long (Fig. |
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– | Postocellar area 2.3 × broader than long (Fig. |
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4 | Metepimeronal appendage broad and large, apical margin rounded, longer than broad (Fig. |
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– | Metepimeronal appendage somewhat narrow and small, nearly triangular, apical margin somewhat rounded, as long as broad (Fig. |
China: Gansu Province: 7♀, Mt Taizishan, Diaoqi Forest Farm, Linxia City,
The species is similar to
Some female specimens with hind tibia entirely black, dorsal side without a small white macula subapically. This macula is described as present in the original description (Chen et al. 2015).
Unknown.
China (Gansu, Shaanxi, Ningxia, Hubei, Sichuan).
This new species is similar to
Holotype: female. Body length 9.5 mm. Body and legs black, following parts white: basal half of mandibles, apex in anterior surface of fore femur, anterior surface of fore tibia, subbasal part on dorsal side of hind tibia. Body hairs pale brown, setae on sheath black brown. Wings hyaline, without smoky macula, stigma and veins black brown (Fig.
Dorsum of head somewhat shiny; frons with somewhat dense and rugose punctures, without smooth interspaces between punctures (Fig.
Anterior margin of labrum truncate; clypeus somewhat elevated in lateral view, broader than distance between the shortest distance between lower inner orbits; lateral sides convergent forwards, anterior margin shallowly incised to nearly 1/5× length of clypeus, lateral corner subquadrate, apical margin short and obtuse (Fig.
Unknown.
China (Ningxia, Shaanxi).
The specific name is derived from two Latin words “
China: Jilin Province: 2♀, Mt Changbaishan, 1300 m, 02.vii.1999, leg. Meicai Wei & Haiyan Nie; Jilin Province: 3♀, Mt Changbaishan, Huangsongpu Forest Farm,
The species is similar to
Unknown.
China (Jilin, Liaoning), Siberia, North Korea, Japan.
This new species is similar to
Holotype: female. Body length 9.5 mm. Body and legs black; following parts white: basal half of mandibles, anterior surface of fore femur partly and subbasal part in dorsal side of hind tibia. Body hairs pale brown, setae on sheath hairs pale black-brown. Wings hyaline, without smoky macula, stigma and veins black brown. (Fig.
Dorsum of head shiny, frons with somewhat dense and rugose punctures, interspaces between punctures narrow, with fine microsculpture (Fig.
Anterior margin of labrum more or less truncate; clypeus slightly elevated in lateral view, broader than distance between the shortest distance between lower inner orbits; lateral sides convergent forwards, anterior margin shallowly incised to approximately 1/5× length of clypeus; lateral corner subquadrate, apical margin short and obtuse (Fig.
Unknown.
China (Tibet).
The specific name is derived from the locality of the new species which is Motuo County, Tibet in China.
This new species is very similar to
Holotype: female. Body length 9.5 mm. Body and legs black; following parts white: basal half of mandibles, apical half on anterior surface of fore femur, anterior surface largely of fore tibia, subbasal part of dorsal side of hind tibia. Body hairs pale brown; setae on sheath black-brown. Wings largely hyaline, apical 1/3 of fore wing with smoky macula, stigma, and veins black-brown. (Fig.
Dorsum of head somewhat shiny, frons rugose with dense punctures, interspaces with fine microsculpture (Fig.
Anterior margin of labrum more or less truncate; clypeus slightly elevated in lateral view, broader than distance between the shortest distance between lower inner orbits; lateral sides convergent forwards, anterior margin shallowly incised to approximately 1/5× length of clypeus; lateral corner of clypeus subquadrate, apical margin of lateral lobes short and obtuse (Fig.
Unknown.
China (Yunnan).
The specific name is derived from the locality of the new species which is Yunnan Province in Southwest China.
The
We are deeply grateful to Spencer K. Monckton and Professor Maoling Sheng for valuable comments and suggestions. This research was partly supported by the Natural Science Foundation of Zhejiang Province (LY18C040001) and the National Natural Science Foundation of China (31672344, 31501885).