Corresponding author: Feng Ge (
Academic editor: N. Vandenberg
The genus
The genus
The genus
At present, the genus
Specimens of
The specimens examined were collected from China. All of them were preserved in 85% ethanol. External morphology was observed with a dissecting stereo microscope (SteREO Discovery V20, Zeiss). The following measurements were made with an ocular micrometer: total length, from apical margin of clypeus to apex of elytra (TL); total width, across both elytra at widest part (TW=EW); height, through the highest point of elytra to metaventrite (TH); head width, including eyes (HW); pronotal length, from the middle of anterior margin to the base of pronotum (PL); pronotal width at widest part (PW); elytral length, along the suture, from the apex to the base including the scutellum (EL). Male and female genitalia were dissected, cleared in a 10% solution of NaOH by boiling for several minutes, and examined with an Olympus BX51 compound microscope.
Images were photographed with digital cameras (AxioCam HRc and Coolsnap–Pro
Terminology follows
The specimens are deposited in: South China Agriculture University, Guangzhou (SCAU), Institute of Plant & Environmental Protection, Beijing Academy of Agricultural & Forestry Science, Beijing (BAAF) and in the Institute of Zoology, Chinese Academy of Sciences, Beijing (IOZ).
The tribe
Body small, oval, relatively elongate; dorsum weakly convex and pubescent (
Pronotum transverse, about twice as wide as long, strongly convex, lateral margins narrowly marginated and distinctly emarginated anteriorly. Scutellum medium-sized, triangular. Elytra elongate and weakly convex, with conspicuous swelling near humeral edge. Elytral base hardly wider than base of pronotum; elytral margins with very narrow rim, but distinctly visible from above. Hind wing well developed, with veins rather well-developed.
Prosternum short in front of coxae, distinctly grooved to receive antennae and palpi; prosternal process broad without longitudinal carinae. Mesoventrite broadly and nearly quadrate, slightly wider than long, anterior margin emarginate. Metaventrite broad, discrimen complete. Elytral epipleuron relatively narrow, nearly horizontal, not foveate, obsolete in apical third. Abdomen with six ventrites, ventrite 1 with complete postcoxal lines (
China (Gansu, Hunan, Henan, Shanxi, Shaanxi, Sichuan, Taiwan, Tibet, Yunnan), Japan, Nepal.
1 | Elytron with a yellow or yellowish brown spot or stripe | 2 |
– | Elytron with two yellow or yellowish brown spots or stripes | 6 |
2 | Elytron with a nearly rounded spot | 3 |
– | Elytron with a long and diagonal stripe | 4 |
3 | Penis short and stout, penis guide in ventral view nearly triangular, apex pointed ( |
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– | Penis long and slender, penis guide in ventral view almost parallel at basal 2/3, apex truncate with a pair of small triangular projections on each side ( |
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4 | Elytral macula emarginate antero-laterally ( |
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– | Elytral macula without antero-lateral emargination Abdominal postcoxal line complete, reaching more than ½ length of ventrite 1 |
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5 | Elytra black, apex very narrowly brown ( |
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– | Elytra reddish brown, apical 1/10 yellow ( |
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6 | Each elytron with two longitudinal yellow spots ( |
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– | Each elytron with two transverse bands. Pronotum yellow, or bicolored | 7 |
7 | Pronotum with disk black and lateral margins yellow ( |
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– | Pronotum yellow ( |
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This species can be identified as follows: pronotum uniformly yellow (
TL: 1.71–1.86mm, TW: 1.19–1.32mm, TH: 0.63–0.69mm, TL/TW: 1.41–1.44; PL/PW: 0.44–0.47; EL/EW: 1.08–1.14.
Body small, elongate oval, weakly convex, dorsum covered with relatively sparse pubescence (
Head moderately large (
Surface of prosternum slightly shagreened, punctures inconspicuous, with sparse short setae. Mesoventrite shiny and glabrous, punctures inconspicuous, with several short setae. Metaventrite broad and glabrous, median part concave, with complete median discrimen; punctures sparse and large, with short sparse setae. Abdominal postcoxal line complete, v-shaped, reaching to 2/3 length of ventrite 1, or almost touching posterior margin (
Male genitalia: Penis short and stout, penis capsule with indistinct outer arm and short inner one (
Female genitalia: Coxites elongate, about 3.0 times as long as wide, tapering to blunt, darker apices, styli distinct, with short terminal setae (
1♂1♀,
China (Gansu, Henan, Shaanxi).
This species is close to
TL: 1.58–1.81mm, TW: 1.06–1.22mm, TH: 0.63–0.82mm, TL/TW: 1.49–1.50; PL/PW: 0.48–0.50; EL/EW: 1.14–1.31.
Body small, elongate oval, weakly convex, dorsum covered with relatively sparse pubescence (
Head moderately large, 0.41× elytral width (HW/EW=2.46); frontal surface of head capsule slightly convex and rather weakly anteriorly inclined below; punctures on frons fine and sparse, inconspicuous, separated by 2.0–4.0× a diameter, with sparse long setae in punctures; eyes relatively large, narrowly separated; widest interocular distance 1.3× narrowest width. Pronotum relatively small, 0.69× elytral width (PW/EW=1: 1.45), pronotal punctures very fine and inconspicuous, smaller than those on head, separated by 3.0–4.0× a diameter. Scutellum moderately large, triangular, visible from above. Punctures on elytra moderately large, irregular, obviously larger than those on pronotum, separated by 1.0–2.5× a diameter.
Surface of prosternum mat and slightly shagreened, punctures inconspicuous, with sparse short setae. Mesoventrite slightly shagreened, punctures inconspicuous, with several short setae. Metaventrite broad and glabrous, median part concave, with complete median discrimen; punctures sparse and fine, separated by 2.0–6.0× a diameter, with short sparse setae. Abdominal postcoxal line complete, v-shaped, touching posterior margin of ventrite 1 (
Male genitalia: Penis long and slender, strongly curved at 2/5 length, distinctly swollen at middle, penis capsule small (
Female genitalia: Coxities elongate, about 3.5× as long as wide, tapering to blunt, darker apices, styli small and distinct, with short terminal setae, apical area distinctly darkened (
China (Tibet).
The specific epithet refers to Motuo, the type locality of this ladybird.
This species is easily distinguished from other
TL: 1.88mm, TW: 1.19mm, TH: 0.76mm, TL/TW: 1.58; PL/PW: 0.56; EL/EW: 1.03.
Body small, elongate oval, weakly convex. Dorsum covered with relatively sparse pubescence (
Head moderately large, 0.36× elytral width (HW/EW=2.77); frontal surface of head capsule flattened and rather weakly anteriorly inclined below; punctures on frons fine and sparse, separated by 2.0–3.0× a diameter, with sparse long setae in punctures; eyes relatively large, narrowly separated; widest interocular distance 1.3× narrowest width. Pronotum 0.69× elytral width (PW/EW=1: 1.44), pronotal punctures very fine, inconspicuous, smaller than those on head. Scutellum moderately large, triangular, visible from above. Punctures on elytra large, irregular, obviously larger than those on head, separated by 0.2–0.5× a diameter.
Surface of prosternum slightly mat and shagreened, punctures inconspicuous, with sparse short setae. Mesoventrite shiny and glabrous, punctures inconspicuous, with several short setae. Metaventrite broad and glabrous, median part concave, with complete median discrimen; punctures sparse and fine, with short sparse setae. Abdominal postcoxal line complete, reaching to 1/2 length of ventrite 1, then recurved basally (
Male genitalia: Penis short and stout, penis capsule indistinct, apex rounded by membrane (
Female genitalia: Coxities elongate, tapering to blunt, darker apices, styli small and distinct, with short terminal setae; spermatheca not sclerotized.
China (Sichuan).
This species is close to
This species is also similar to
TL: 1.68–1.75mm, TW: 1.02–1.12mm, TH: 0.66–0.76mm, TL/TW: 1.41–1.44; PL/PW: 0.51–0.52; EL/EW: 1.18–1.19.
Body small, elongate oval, weakly convex, dorsum covered with sparse pubescence (
Head moderately large, 0.38× elytral width (HW/EW=2.62); frontal surface of head capsule flattened and rather weakly anteriorly inclined below; punctures on frons fine, separated by 2.0–4.0× a diameter, with sparse long setae in punctures; eyes relatively large, narrowly separated; widest interocular distance about 1.5× narrowest width. Pronotum 0.68× elytral width (PW/EW=1: 1.48), pronotal punctures very fine, smaller than those on head, separated by 2.0–4.0× a diameter. Scutellum moderately large, triangular. Punctures on elytra moderately large, obviously larger than those on pronotum, separated by 1.5–2.5× a diameter.
Pro- and mesoventrite slightly shagreened, punctures inconspicuous, with sparse short setae. Metaventrite broad and glabrous, median part concave, with complete median discrimen; punctures fine and sparse, separated by about 2.0–4.0× a diameter, with short sparse setae. Abdominal postcoxal line complete, reaching to 4/5 length of ventrite 1 (
Male genitalia: Penis short and stout, penis capsule distinct, apex blunt and slightly swollen (
Female genitalia: Coxities elongate, subtriangular, about 3.5 × as long as wide, tapering to blunt, darker apices, styli small and distinct, with short terminal setae (
China (Tibet).
The specific epithet is in reference to Tibet, the type locality of this ladybird.
This species is close to
TL: 1.65–1.75mm, TW: 1.12–1.29mm, TH: 0.66–0.73mm, TL/TW: 1.36–1.47; PL/PW: 0.52–0.55; EL/EW: 1.05–1.12.
Body small, elongate oval, weakly convex, dorsum covered with relatively sparse pubescence (
Head moderately large (
Pro- and mesoventrite slightly shagreened, punctures inconspicuous, with several short setae. Metaventrite broad and glabrous, median part concave, with complete median discrimen; punctures sparse and fine, separated by 2.5–3.0× a diameter, with short sparse setae. Abdominal postcoxal line complete, reaching to 4/5 length of ventrite 1 (
Male genitalia: Penis short and stout, penis capsule inconspicuous, apex rounded (
Female genitalia: Coxities elongate, subtriangular, about 2.5× as long as wide, tapering to blunt apices, styli very small and inconspicuous, each with short terminal setae (
China (Tibet).
The specific epithet is formed from the Latin adjective
This species can be distinguished from other
TL: 1.86mm, TW: 1.2mm, TH: 0.71mm, TL/TW: 1.55; PL/PW: 0.42; EL/EW: 1.25.
Body small, elongate oval, weakly convex. Dorsum covered with relatively sparse pubescence (
Head moderately large (
Pro- and mesoventrite slightly shagreened, punctures inconspicuous, with sparse short setae. Metaventrite broad and glabrous, median part concave, with complete median discrimen; punctures sparse and fine, with short sparse setae. Abdominal postcoxal line complete, v-shaped, touching 2/3 length of ventrite 1 (
Male genitalia: Penis short and stout, penis capsule small, apex rounded by membrane (
Female genitalia: Coxities elongate, about 3.5× as long as wide, tapering to blunt apices, styli small and distinct, with short terminal setae (
China (Sichuan, Yunnan).
This species can be identified by pronotum yellowish brown, with a large quadrate black spot and black elytron with two large curved yellowish brown strips (
TL: 1.81–2.31mm, TW: 1.24–1.58mm, TH: 0.82–0.89mm, TL/TW: 1.46–1.47; PL/PW: 0.51–0.52; EL/EW: 1.10–1.15.
Body small, elongate oval, weakly convex. Dorsum covered with relatively sparse pubescence (
Head moderately large (
Pro- and mesoventrite slightly shagreened, punctures inconspicuous, with sparse short setae. Metaventrite broad and glabrous, median part flatten, with complete median discrimen; punctures on lateral area moderated large, separated by about 1.5–3.0× a diameter, with short sparse setae. Abdominal postcoxal line complete, reaching to 2/3 length of ventrite 1, then recurved basally (
Male genitalia: Penis long and slender, penis capsule inconspicuous (
Female genitalia: Coxities elongate, subtriangular, about 5.3× as long as wide, tapering to blunt, darker apices, styli small and distinct, each with short terminal setae (
1♂2♀♀,
China (Henan, Shanxi).
This species is colse to
TL: 1.94mm, TW: 1.32mm, TH: 0.73mm, TL/TW: 1.48; PL/PW: 0.53; EL/EW: 1.15.
Body small, elongate oval, weakly convex. Dorsum covered with relatively sparse pubescence (
Head moderately large (
Pro- and mesoventrite mat and shagreened, punctures inconspicuous, with sparse short setae. Metaventrite broad and glabrous, median part concaved, with complete median discrimen; punctures sparse and fine, separated by 2.0–3.0× a diameter, with short sparse setae. Abdominal postcoxal line complete, v-shaped, nearly reaching to posterior margin of ventrite 1 (
Male genitalia: Penis short and stout, slightly curved, without penis capsule (
Female genitalia: unknown.
China (Hunan).
The species is named after Dr. Yu Guoyue, an outstanding coccinellid taxonomist of China
Distribution map. ▲
The authors sincerely thank Dr. Yu Guoyue for encouragement, suggestions and support during this research work. My sincere thanks are extended to Dr. Claudio Canepari for examining specimens of