Calicnemia chaoi Wilson 2004
Creators: name: K. D. P. Wilson
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Platycnemididae
Calicnemia
Calicnemia chaoi

description: <i>CALICNEMIA CHAOI</i> SP. NOV. Figures 15-21 Material. — <i>Holotype &amp;male;</i>: Pengshan (Dadingshan), Shikengkong, N Guangdong, China, l-VII-2000, K.D.P. Wilson leg. — Allotype: <i>&amp;female;</i>, ditto, l-VII-2000. — <b>Paratypes</b>: 1 <i>&amp;male;</i>, Henglongbei, Shikengkong, 28- - <i>VI-</i> 2002; 7 <i>&amp;male;</i>, 1 <i>&amp;female;</i>, Dadingshan, Shikengkong,N Guangdong, 30-V-2000; 1 <i>&amp;male;</i>, Longtanjiao,N Guangdong, 2-VII-2000; 1 &amp;female;, Cheng Jia, N Guangdong, 5-VII-2000. Holotype will be deposited at Tai Lung Experimental Station, Agriculture, Fisheries and Conservation Department, Lin Tong Mei, Sheung Shui, Hong Kong SAR, China. <i>Etymology</i>. — Named in honour of the late Chao Hsiu-fu. <i>Description</i>. — A <i>Calicnemia</i> with bright red coloured abdomen and amber tinted wings. MALE. — Pale labium. Labrum, base of mandibles, genae, shiny orange red. Frons and clypeus carmine red. Irregular transverse line across front of head covering base of frons and base of antennae (Fig. 15). A <i>pair</i> of quadrate, carmine red spots above anten­ nae almost linked below central ocellus. Top of head matt black with elongate, yellow, tear­ -shaped postocular spots. Prothorax matt black with pale yellow lateral spots (<i>Fig</i>. 16). Synthorax black with broad, bright orange red dorsal stripe. Sides of synthorax with a yellow stripe across metepisternum, covering the spiracle and lower metepimeron and metaposternum yellow (<i>Fig</i>. 16). Legs pale reddish brown. Wings uniformly tinted rich amber. Pterostigma greyish-brown, braced at proxi­ mal comer and subtending two to three cells (<i>Fig</i>. 21). Abdo­ men bright, blood red with seg­ ment 1 pale orange and segment 10 blackish at distal border. Caudal appendages as figured in Figures 19-20 with long superior appendages twice length of 10thabdominal segment. Inferior appendages slightly longer than segment 10 with prominent downward and inward pointing basal pegs. Penile organ with simple, short, broad, quadrate lobes as illustrated in Figures 17-18. FEMALE. — As male with red and orange red pattern of frontal head replace with pale orange. Dorsal thoracic stripe <i>is</i> fine yellow. Abdomen <i>is</i> uniformly dull orange red apart from segment 1 which <i>is</i> pale yellow and dorsum of abdominal segments 8-10 which are coloured dark brown. Wings, like the male, are strongly tinted uniformly amber. Measurements (mm): <i>&amp;male;</i>,abd. + app.31.5-33.0;hw.22.0-24.0; &amp;female; abd. + app.27.5-29.0,hw22.0-24.0. DIFFERENTIAL DIAGNOSIS. - LIEFTINCK (1984) divided all the members of <i>Calicnemia</i> into two main species groups according to the structure of their penile organs. Group I species possess a pair of recurved penile lobes ending in narrow, ribbon-like filaments whereas Group II species have a recurved penis with broadly expanded lobes. C. <i>chaoi</i> belongs to the latter group. Of the six <i>Calicnemia</i> species known from China and adjacent Vietnam four, comprising C. <i>eximia</i> (Selys), <i>C</i>. <i>erythromelas</i> (Selys), <i>C</i>. <i>imitans</i> Lieftinck, and <i>C</i>. <i>sinensis</i> Lieftinck, have Group I penile organs. The remaining two species, C. <i>miles</i> (Laidlaw), and C. <i>uenoi</i> Asahina have Group II penile organs. C. <i>uenoi</i> has a fine ventral peg and only the anterior half of the abdomen is coloured red (ASAHINA, 1997). <i>C</i>. <i>miles</i> (Laidlaw) <i>is</i> undoubtedly the closest congener and apart from the unique amber wings of <i>chaoi</i> it is difficult to separate the two species. The apical tips of the penile lobes of <i>chaoi</i> are reflexed and subacute, almost squarish, whereas the apical lobes of <i>miles</i> are curved, but not reflexed, and sharply pointed (cf. ASAHINA, 1985: 4-5, figs 9-16).
description: Published as part of <i>K. D. P. Wilson, 2004, New Odonata from South-China, pp. 423-432 in Odonatologica 33 (4)</i> on pages 428-429, DOI: 10.5281/zenodo.3375618
description: {"references": ["LIEFTINCK, M. A., 1984. Further notes on the specific characters ofCalicnemia Strand, with a key to the males and remarks on some larval forms (Zygoptera: Platycnemididae). Odonatologica 13 (3): 351 - 375.", "ASAHINA, S., 1997. Records of the northern Vietnamese Odonata taken by the expedition members from the National Science Museum, Tokyo. 5. Coenagrionidae, Protoneuridae and Platycnemididae. Bull, natn. Sci. Mus., Tokyo (A) 23 (1): 17 - 34.", "ASAHINA, S., 1985. A list of the Odonata recorded from Thailand. Part V. Platycnemididae 2 (Calicnemia and Indocnemis). Cho Cho 8 (1): 2 - 12."]}