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Volume 9
Numéro 4 Février 2021 ISSN : 2269 - 6016
Dépôt légal : Février 2021
Faunitaxys
Revue de Faunistique, Taxonomie et Systématique
morphologique et moléculaire
Faunitaxys
Revue de Faunistique, Taxonomie et Systématique
morphologique et moléculaire
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Imprimé le 5 février 2021
A new subspecies of Trachythorax Redtenbacher, 1908 (Phasmatodea:
Necrosciinae) from Yunnan, China
HAO-RAN GAO (1) & LE LIANG (2)
(1) College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China - gaohaoran909@qq.com
- https://orcid.org/0000-0001-5093-0474 - ZooBank: http://zoobank.org/7502CF3F-EEC5-4E7A-94BF-8BDDEA7B0C9E
(2) College of Biological Science, China Agricultural University, Beijing 100193, China - 2628755834@qq.com
- http://orcid.org/0000-0003-0074-0845 - ZooBank: http://zoobank.org/4F89A438-260B-4192-8598-A2B2EA7C1553
1
Faunitaxys, 9(4), 2021 : 1 – 5.
Introduction
The genus Trachythorax Redtenbacher, 1908 belongs to the
tribe Necrosciini of the subfamily Necrosciinae within the
family Lonchodidae. This genus consists of eleven species,
mainly distributed over Asia. So far, there are five species
recorded from China (Westwood, 1848; Retdenbacher, 1908;
Shiraki, 1911; Cai, 1989; Chen & He, 1995, 2008). A new
species, Trachythorax maculicollis yunnanensis subsp. nov.
from Yunnan, China is described herein.
Materials and methods
All type materials were collected from Yunnan, China. Photos of the
type specimens of Tra chy tho rax Redtenbacher, 1908 (Phasmida
Species File Online http://phasmida.speciesfile.org/) (Broc k et al,
2021), together with all original and subsequent descriptions of known
species were checked.
Photos were taken by Olympus EM1 Mark II with 60mm F2.8 and
Sony a6300 with LAOWA 60mm F2.8.
Typ e ma te ri al s a re d ep os it ed i n the following public and private
collections:
– YNAU: Yunnan Agricultural University;
– SWFU: Southwest Forest University, China;
– CAU: China Agricultural University;
– GHR: Author’s personal collection.
Taxonomy
Genus Trachythorax Redtenbacher, 1908
(Chinese vernacular name: 瘤胸䗛属)
Type species: Phasma maculicollis Westwood, 1848 by
subsequent designation (Brock, 1995).
Abstract. – Trachythorax maculicollis yunnanensis subsp. nov. from Yunnan, China is
here decribed. Photographs of the adults and eggs as well as a key to female of the six
known species from China are provided.
Gao H. R. & Liang L., 2021. – A new subspecies of Tr ach ythor ax Redtenbacher, 1908 (Phasmatodea:
Necrosciinae) from Yunnan, China. Faunitaxys, 9(4): 1 – 5.
ZooBank: http://zoobank.org/67DCCF75-4DF0-46ED-9292-431E8DC55DF4
Keywords :
Phasmatodea;
Necrosciinae;
Trachythorax;
maculicollis;
yunnanensis;
taxonomy;
new subspecies;
key;
Yunnan;
China.
Key to the species of Trachythorax Redtenbacher, 1908 in China (Female)
1. Head behind flattened ........................................................................................... T. fuscocarrinatus
– Head behind elevated ................................................................................................................ 2
2. Head with black spots ............................................................................................................... 3
– Head without distinct black spots .................................................................................................. 4
3. Hind wings long, distinctly surpassing tip of abdomen .......................................................... T. chinensis
– Hind wings shorter, not surpassing tip of abdomen ............................................................................. 5
4. Hind wings rather long, distinctly surpassing tip of abdomen .................................................. T. longialatus
– Hind wings short, not surpassing tip of abdomen ............................................................... T. sexpunctatus
5. Apex of prothorax dark red ............................................................................ T. maculicollis maculicollis
– Apex of prothorax light yellow ......................................................... T. maculicollis yunnanensis subsp. nov.
Trachythorax maculicollis yunnanensis Gao & Liang
subsp. nov.
(Chinese vernacular name: 暗斑瘤胸䗛云南亚种)
(Fig. 1-11)
ZooBank: http://zoobank.org/A15EE29C-DE04-404F-ABB3-7D7F740A569B
Holotype, ♀, Menglun, Yunnan, China, 7.X.2020, Zha Yue, in YNAU.
Paratypes (9 ex.)
– 1 ♂, Menglun, Yunnan, China, 14.IX.2020, Li Hao-Kun, in YNAU.
– 1 ♀ (with 14 eggs), Menglun, Yunnan, China, 7.X.2020, Li Hao-Kun, in CAU.
– 1 ♀, Jinghong, Yunnan, China, V.2015, Gao Hao-Ran, in GHR.
– 4 ♀ & 2 ♂, Menglun, Yunnan, China, 6.III.2020, Xie Chong-Xin (1 ♀ in
YNAU; 1 ♀ with 14 eggs in CAU; 1 ♂ & 1 ♀ in GHR; 1 ♂ & 1 ♀ in SWFU).
Diagnosis. – Tr ach yth ora x ma cul ico lli s yun nan ens is subsp. nov. is very
similar to Trac hyt hor ax ma cul ico lli s mac uli col lis (Westwood, 1848), but
can be easily separated by light yellow anterior margin of the prothorax of
both male and female (Fig. 3).
Description of the female (Fig. 1, 3-4 & 11)
General aspect. – Medium-sized. Larger and more robust than male.
General coloration of body dark brown. Winged.
Head. – L on g er t h an w i de . D a r k b ro w n w i th b l ac k ma c u la e . Ver t ex e le v at e d
and sharp. No ocellus. Compound eye with brown spots and foggy-like black
maculae. Two black strips behind compound eye. Frons has three black
maculae, two behind torulus, one in the middle. Antenna brown with black
spots. Scapus setose.
Thorax. – Dark brown with black maculae. Pronotum with a pair of
parallel rows of three black maculae, with conspicuous mid-longitudinal
sulcus. The light-yellow anterior margin of the pronotum is curved inward.
The hind margin of the pronotum is black (Fig. 3). Mesonotum is almost two
times longer than pronotum. Mesonotum with a pair of tubercles in the middle
and a pair of three black maculae, one stripe-shape front tubercle and two
tubercles behind. Mesopleuron smooth. Metasternum fused to abdominal
sternum I.
Legs. – All legs are dark brown with foggy-like maculae, covered with
irregular patches and bristles. Pro- and mesocoxa are light yellow, being the
same color as the anterior margin of the pronotum. Profemora incurved basally.
The profemora almost reaches the length of the pronotum and mesonotum
combineds. Mesofemora are almost 2/3 the length of the profemora.
Metafemora is almost the same length as the profemora. Tibiae are unarmed.
Wings. – Te gm in a d ar k b ro wn w it h a d ef in it e h um p a nt er ol a te ra ll y. Al ae
developed. Costal area with same color as tegmina. Veins dark brown. Anal area
translucent brown. Alae just reaching the abdominal segment VIII.
Abdomen. – Dark brown. Median segment smooth. Terg II-VII
rectangular, length gradually decreasing, approximately 2 longer than wide.
Tergum VII with a pair of black humps. Segments II-VII cylindrical.
Segments II-V lateral margins with black maculae. Cercus cylindrical, short,
robust, setose, light brown, with rounded apex. Subgenital plate longer than
segments VIII-IX combines.
Description of the male (Fig. 2 & 5-7)
General aspect. – Small size. Almost half length of female. Similar
to female.
Head. – Oval. Longer than wide. Dark brown with black maculae. Vertex
elevated but not obvious. Compound eye with brown spots and foggy-like black
maculae. Two black strips behind compound eye. Antenna brown with black
spots. Scapus setose.
Thorax. – Dark brown with black maculae. Pronotum with a pair parallel
rows of three black maculae, with conspicuous mid-longitudinal sulcus.
Pronotum anterior margin curved inward and light yellow, hind margin is
black. Mesonotum almost 2.5 times longer than pronotum. Mesonotum with a
pair of three black maculae, front macula long and stripe-shape, middle one
tiny and hind one triangular. Mesopleuron smooth and setose. Metasternum
fused to abdominal sternum I.
2 GAO & LIANG. – Trachythorax maculicollis yunnanensis subsp. nov. from Yunnan, China
1
Fig. 1-2. T. m ac ul ic ol li s yu nn an en si s subsp. nov., habitus, dorsal view.
1) Holotype, ♀. 2) Paratype, ♂.
♀ ♂
2
2 cm
3
Faunitaxys, 9(4), 2021 : 1 – 5.
3
8 9 10
4 5 6 7
Fig. 3-10. T. maculicollis yunnanensis subsp. nov.
3-4) Holotype, ♀: 3) Head and thorax, lateral view; 4) Apex of abdomen, lateral view.
5-7) Paratype, ♂, apex of abdomen: 5) Lateral view; 6) Ventral view; 7) Dorsal view.
8-10) Egg: 8) Dorsal view; 9) Lateral view; 10) Anterior view.
♀
1 mm
Lengths (mm)
Male
Female
Body
Head
40.7
3.5
77.7
6.3
Antennae
36
-
Pronotum
3.0
5.5
Mesonotum
6.2
10.1
Metanotum
7.0
14.2
Profemora
13.5
20.5
Mesofemora
7.9
11.4
Metafemora
11.6
19.8
Protibiae
11.5
18.1
Mesotibiae
6
11.5
Metatibiae
11.5
18.7
Legs. – Unarmed. Dark brown with yellow maculae. Profemora incurved
basally. Profemora length almost reaches pronotum and mesonotum combineed.
Mesofemora are almost 2/3 the length of the profemora. Metafemora is almost
the same length as the profemora.
Wings. – Te gm in a d ar k b ro wn w it h a d ef in it e h um p a nt er ol a te ra ll y. Al ae
developed. Costal area of the same color as the tegmina. Veins dark brown. Anal
area translucent brown. Alae just reaching abdominal segment VI.
Abdomen. – Dark brown. Median segment smooth. Terga II-VII
rectangular, length gradually decreasing. Segments II-VII cylindrical.
Segments II-V lateral margins with black maculae. Anal segment rounded
posteriorly. Cercus cylindrical, short, robust, setose, yellow, with rounded
apex. Vomer triangular.
Measurements
China certainly distributed T. maculicollis maculicollis, authors
had seen the living photos of them. But the recorded location
Jinghong, Xishuangbanna in Chen & He (2008) mostly distributed
the new subspecies T. maculicollis yunnanensis.
Acknowledgements
– We wish to thank Li Hao-Kun and Zha Yue for providing the
specimens.
– Thank Wang Peng and Wu Yun-Fei (CAU) for help in
photographing.
– We appreciate Francis Seow-Choen (Singapore) for improving
the manuscript.
– Thank Ma Li (YNAU), Wang Bao-Qing (CAU) and Cai Wan-
Zhi (CAU) for allowing authors to use the equipments in labs.
– Thank Xie Chong-Xin (SWFU) for connecting with SWFU.
– Thank Liao Pei-Lin for providing the living photo.
– We also deeply thank Yin Zi-Xu, Dong Zhi-Wei, Fu Shang-
Qian, Chen Wei-Xian (YNAU), Liang Yi-Nan and all Chinese
stick insects breeders for their long time supporting.
GAO & LIANG. – Trachythorax maculicollis yunnanensis subsp. nov. from Yunnan, China
4
Eggs (Fig. 8-10)
Capsule oval in lateral view; circular in cross-section; similar in width
and length. Micropylar plate connects both ends of capsule, anterior
margin approaching the opercular collar; significantly wider in the
posterior region. Operculum circular and perpendicular in relation to
capsule length; ornamented with distinctive lobate protuberance
commonly. Each strand of protuberance about 1.5-1.6 times longer
than diameter of operculum. Operculum rough with nodistinctive
ridge. Capsule smooth with relative homogeneous yellow coloration.
Protuberance and posterior dull light yellow. Micropylar plate milky
white. Operculum gray.
Egg measurements
– Capsule length: 2.9;
– Capsule width: 1.9;
– Capsule height: 1.8;
– Micropylar plate length: 2.2;
– Operculum diameter: 1.1.
Materials condition. – Holotype has lost the apex of both
antennae.
Etymology. – This new species is named after the type locality
Yu n na n p r o v in c e , C hi n a .
Distribution. – Xishuangbanna, Yunnan Province, China.
Notes. – The anterior margin of the pronotum in the male is light
yellow as in the female. This yellow fades rapidly after death.
11
Fig. 11. - T. maculicollis yunnanensis subsp. nov., living photo (by
Liao Pei-Lin).
Faunitaxys, 9(4), 2021 : 1 – 5. 5
Résumé
Gao H. R. & Liang L., 2021. – Description d’une nouvelle sous-espèce du genre Trachythorax Redtenbacher, 1908 (Phasmatodea: Necrosciinae)
du Yunnan, Chine. Faunitaxys, 9(4): 1 – 5.
Trachythorax maculicollis yunnanensis subsp. nov. est décrite du Yunnan, Chine. Les photos des adultes et des oeufs sont
présentées. Une clé des exemplaires femelles des 6 espèces connues de Chine est proposée.
Mots clés. – Phasmatodea, Necrosciinae, Trac hyth ora x, maculicollis, yunnanensis, taxonomie, nouvelle sous-espèce, clé, Yun n an , Chine.
References
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Phasmida) Associated with Peninsular Malaysia and Singapore.
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Brock P.D., Büscher T. & Baker E., 2020. – Phasmida
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from China (Phasmatodea: Heteronemiidae). Acta
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Chen S.C. & He Y.H., 1995. – A new species of Trachythorax
from Hainan, China (Phasmatodea: Heteronemiidae). Acta
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Otte D. & Brock P.D., 2005. – Phasmida Species File - Catalog
of stick and leaf insects of the world. The Insect Diversity
Association and the Academy of Natural Sciences,
Philadelphia. 414pp.
Redtenbacher J., 1908. – Die Insektenfamilie der Phasmiden. III.
Phasmidae Anareolatae (Phibalosomini, Acrophyllini,
Necrosciini). Wilhelm Engelmann, Leipzig, 250 pp.
Seow-Choen F., 2019. – A taxonomic guide to the stick insects of
Borneo Vol. 3. Kota Kinabalu: Natural History Publications
(Borneo), 288pp.
Shiraki T., 1935. – Orthoptera of the Japanese Empire (Part IV)
Phasmidae. Memoirs of the Faculty of Science and Agriculture,
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77, pl. 38: 2.
12
Fig. 12. - Habitat of T. maculicollis yunnanensis subsp. nov.
Faunitaxys
Volume 9, Numéro 4, Février 2021
SOMMAIRE
Description d’une nouvelle sous-espèce du genre Trachyt horax Redtenbacher, 1908 (Phasmatodea:
Necrosciinae) du Yunnan, Chine.
Hao-Ran Gao & Le Liang ....................................................................... 1 – 5
CONTENTS
A new subspecies of Trachythorax Redtenbacher, 1908 (Phasmatodea: Necrosciinae) from
Yunnan, China.
Hao-Ran Gao & Le Liang ....................................................................... 1 – 5
Illustration de la couverture : Xishuangbanna, Yunnan, Chine.
.
Crédits photos :
Fig. 1-10, 12 & couverture : © Gao Hao-Ran
Fig. 11 : © Liao Pei-Lin
Publié par l’Association Française de Cartographie de la Faune et de la Flore (AFCFF)
