Cephalaeschna klotsae

Cephalaeschna klotsae
Conservation status
Least Concern  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Odonata
Infraorder:	Anisoptera
Family:	Aeshnidae
Genus:	Cephalaeschna
Species:	C. klotsae
Binomial name
Cephalaeschna klotsae Asahina, 1982
The distribution of Cephalaeschna klotsae

Cephalaeschna klotsae, also known as yellow-spotted dusk-hawker, is a dragonfly species in the family Aeshindae described by odonatologist Syoziro Asahina in 1982. It is an endemic species of China, specifically distribute in Hubei, Guangdong, Hongkong, Zhejiang, Fujian and Anhui. ^{[2] [3]}

Description

The body length of this dragonfly species is around 70~77 mm, the abdomen length is 54~61 mm and the length of their hindwings is around 46~49 mm ^[2] . This species does not have significant sexual dimorphism, they have olive green colored compound eyes with dark brownish faces, their legs are black, thorax is black with 2 pairs of light green strips on each side and 1 pair on the front, wings are transparent, abdomen is black with parallel light green strip-like spots on 1st~8th segment; color of females is lighter and their ovipositors are comparatively less developed ^[2] . The naiad has inverted trapezoidal head with pumped out compound eyes ^[3] .

Biology

The species dwelling in elevation around 300~2000 in mountains; Cephalaeschna klotsae 's naiads live in a semi-aquatic environment, that means they can move, capture prey, and molt on land, mainly in mosses and ferns surround little waterfalls and seepage stone walls and naiads are highly camouflaged ^[2] . ^[4] The adults are diurnal hunters that are active near the breeding site, preying on small insects, the species' flight season is from May to October ^[4] .

Natural history

The phylogyny of genus Cephalaechna is poorly studied. ^[5] However, from morphology perspective, the naiad of Cephalaechna is very similar to genus Planaeschna. ^[6] An article written in 2002 also suggests that Cephalaechna is the sister group of genus Caliaeschna. ^[7]

Conservation status

Yellow-spotted Dusk-hawker Cephalaeschna klotsae has most recently been assessed for The IUCN Red List of Threatened Species in 2020. Cephalaeschna klotsae is listed as Least Concern, the assess date is 26 November 2020.

References

1. The IUCN Red List of Threatened Species. IUCN Red List of Threatened Species. https://www.iucnredlist.org/species/167191/139099662
2. Zhang, Haomiao (2019). 中国蜻蜓大图鉴[Dragonflies and Damselflies of China. Chongqing: Chongqing University Press] (in Chinese and English). Vol. 1. CHONGQING UNIVERSITY PRESS. p. 145. ISBN   9787568910378.
3. 市生态环境局. "黄山市生态环境局". sthjj.huangshan.gov.cn (in Chinese (China)). Archived from the original on 2025-06-17. Retrieved 2025-11-16.
4. WILSON, KEITH DUNCAN PETER; XU, ZAIFU (2009-08-06). "Gomphidae of Guangdong & Hong Kong, China (Odonata: Anisoptera)" . Zootaxa. 2177 (1). doi:10.11646/zootaxa.2177.1.1. ISSN   1175-5334.
5. Hu, Fang-Shuo; Chan, Tsung-Wei; Huang, Lung-Chun; Lee, I-Lung (2021-01-01). Abbott, John (ed.). "Description of the final instar larva of Cephalaeschna risi Asahina, 1981 with notes on its semi-terrestrial lifestyle (Odonata: Aeshnidae)". International Journal of Odonatology. 24. Worldwide Dragonfly Association: 139–148. doi: 10.23797/2159-6719_24_10 .
6. Novelo-Gutiérrez, Rodolfo; Sites, Robert W. (2024), "Aeshnidae" , The Dragonfly Nymphs of Thailand (Odonata: Anisoptera), Cham: Springer International Publishing, pp. 39–104, doi:10.1007/978-3-031-33712-3_4, ISBN   978-3-031-33711-6 , retrieved 2025-11-16
7. Von Ellenrieder, Natalia (October 2002). "A phylogenetic analysis of the extant Aeshnidae (Odonata: Anisoptera)". Systematic Entomology. 27 (4): 437–467. doi:10.1046/j.1365-3113.2002.00190.x. ISSN   0307-6970.