Corresponding author: Runzhi Zhang (
Academic editor: C. Majka
The apionid genus
Recently, we obtained two more specimens of the monotypic species
Materials examined of the new species for this study are to be deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing Biological Museum, Sun Yat-Sen University, Guangdong Natural History Museum Zoological Institute
Descriptions were made and photographs were taken with a Canon EOS 5D mounted on a Nikon SMZ1500. Extended focus images were generated with CombineZM and edited with Adobe Photoshop CS 5.0 when required. Microscopic slides were studied under a Leica DM 2500 microscope and photos were taken with a Nikon CoolPix P7100. Drawings were made from the original photographs by using the software Adobe Illustrator CS5.0, or directly by using a drawing tube attached to the microscope.
Scanning Electron Microscope
Nomenclature of the rostral parts follows
The dissecting method used follows
After description, the genitalia and other parts of each specimen were placed in DMHF on an acetate card for long term conservation (
Labels are described as they are (in Chinese or Cyrillic), with pinyin romanization for Chinese and ISO 9:1995 for Russian, and translations in square brackets; labels are separated by semicolons and lines by slashes. Alternative modern pinyin romanizations are also given in some cases where labels are written using other romanization systems, like Wade-Giles.
According to species examined, the diagnostic characters of
Ninth sternite (spiculum gastrale) Y-shaped, slender and nearly symmetrical, not winged, manubrium about 1.21× as long as arms (
1♂: (white, printed): Magila / E. Africa / A. V. Legros / 98-190; (white, printed and handwritten): Wagner det. ♂ / considerandum Fåhr.; 1♀: (white, handwritten): X. 1983 / in clove tree / CIEA15888; (white, handwritten): Tanzania / Zanjibar / Kitunda; (white, printed): pres by: Comm Inst Ent B. M. 1984-1. Specimens in the NHM.
Eighth sternite transverse, with apical edge wide, slightly concave (
Paratype: 1♂: (white, printed): 云南景东董家坟 [Yúnnán JǐngDōng Dǒngjiāfén] / 1956.V.28/1250m / leg. 克雷让诺夫斯基 [Kryzhanovsky]; (white, printed): Юньнань, 10 км. N Цзин- [Yúnnán, 10 km north of Jǐng-] / дуна [-Dōng], 1250 м, 28. V. 1956 / Крыжановский [Kryzhanovsky].
Yunnan.
Eighth sternite moderately elongate, apical edge constricted, relatively concave, basal edge with a medial tubercle, sides distinctly extended backwards (
Holotype. ♂ (white, handwritten): Вьетнам, пров. Хашонбинь [V’etnam, prov. Hašonbin’] [Vietnam, prov. Hà Sơn Bình] / 7 км ю.-в. Хоабиня, вторичный тропический лес и кустарник на склоне [7 km û.-v. Hoabinâ, vtoričnyj tropičeskij les i kustarnik na sklone] [7 km SE of Hòa Bình, tropical secondary forest and scrub on the hillside] / 17. X 1976 / leg. Л. Н. Медведев [L. N. Medvedev]; 1♂: 云南景洪勐海县纳板河 [Yúnnán Jǐnghóng Měnghǎixiàn Nàbǎnhé] / 保护区过门山(森林) [bǎohùqū Guòménshān (sēn lín [forest]) / 2009.V.06, 1114m;
Yunnan (new record for China), Vietnam.
(holotype).
China, Guangdong: Zhongshan City eighth district,
Guangdong, Hong Kong, Hainan.
Holotype will be deposited in IZCAS, while all paratypes in BMSYU.
This species is named
(holotype).
China, Yunnan, Menghai, Nabanhe National Natural Reserve, Guomenshan,
Holotype: 1♂: (white, printed): 云南景洪勐海县纳板河 [Yúnnán Jǐnghóng Měnghǎixiàn Nàbǎnhé] / 保护区过门山(森林) [bǎohùqū Guòménshān (sēn lín [forest])] / 2009.III.16 1114m;
Yunnan.
Both holotype and paratype will be deposited in IZCAS.
This species is named after the Russian curculionidologist Boris A. Korotyaev, who has much improved the taxonomy of
1 | All legs and antennae reddish brown; apical plate of pedon without dorsal dentiform projections; fenestrae narrowly separated, transverse, rectangular; parameroid lobes with basal sclerotized area extremely enlarged and extended medially, triangular, apical membranous area reduced to lateral strip; median unsclerotized strip elongate and surpassing fenestrae | |
– | All legs black; apical plate of pedon with 2 dorsal dentiform projections; fenestrae separated or confused, differently shaped; parameroid lobes with basal sclerotized area short and medially sinuate, apical membranous area developed; median unsclerotized strip just or not reaching linea arquata | 2 |
2 | Body larger, standard length more than 2 mm; scales of elytral striae short, tips of anterior scales not or hardly reaching the base of posterior ones; antennal scape at least 3.5× as long as wide; tegmen with prostegium reduced and deeply concave, untoothed |
|
– | Body smaller, standard length less than 2 mm; scales of elytral striae elongate, tips of anterior scales surpassing base of posterior ones; antennal scape at most 3.1× as long as wide; tegmen with prostegium developed and bidentate | 3 |
3 | Standard length 1.78–1.90 mm; rostral pubescence surpassing middle of prorostrum, only apex glabrous; elytral scales around scutellum distinctly whiter and thicker compared with semitransparent and thin scales on elytral disc; fenestrae fused; prostegium with very long teeth |
|
– | Standard length 1.22–1.24 mm; rostral pubescence not surpassing middle of prorostrum, nearly entire prorostrum glabrous; almost all elytral scales with same size and coloration; fenestrae separate; prostegium with short narrow teeth |
Some previously considered generic characters of the tegmen like parameroid lobes, fenestrae and prostegium (
Additionally, a close genus,
SEM photos
We are most grateful to the following colleagues for the loan of types and other materials in their collections: Boris A. Korotyaev (ZIN), Pang Hong (BMSYU), Christopher H. C. Lyal (NHM) and Maxwell V. L. Barclay (NHM). We sincerely thank Marek Wanat for providing us with literature and giving us many valuable suggestions, Charles O’Brien for doing the linguistic review before submission, Liu Ning for providing technical support, Lin Meiying for donating specimens to us, as well as Zhang Kuiyan for helping us take SEM photos. Thanks also due to the anonymous reviewers for their effort to improve this paper. This research was supported by the National Natural Science Foundation of China (No. 31201735/31172130/31210103909/J1210002), project grant CGL2010–15786 (Ministerio de Ciencia e Innovación, Spain) and the Invited Professor Award (2009) of the Chinese Academy of Sciences to the second author.