[Odonata-l] Is this a Lestes concinnus?

[Keith Wilson]

Lieftinck's paper provides very good drawings of the caudal genitalia of
umbrinus, concinnus and nodalis. The caudal genitalia shown at
http://entomology.nankai.edu.cn/database/photos/photos-list.htm
are quite different. As KD has pointed out the closed wings in the photo are
likely the adult condition and not just a freshly emerged specimen - so it
probably belongs to Indolestes or Sympecma, which both hold their wings
closed as adults.

Indolestes assamicus Fraser, 1930, Indolestes coeruleus Fraser, 1924,
Indolestes cyaneus (Selys, 1862), Indolestes gracilis (Hagen in Selys,
1862), Indolestes inflatus (Fraser, 1933), Indolestes peregrinus (Ris, 1916)
& Sympecma paedisca (Brauer, 1877) have all been recorded from China. I.
peregrinus, cyaneus, coeruleus, gracilis can be ruled out on the synthoracic
pattern.

The closest resemblance is to inflatus but the superior appendages of
inflatus are more strongly angulated.  

Where does your specimen come from?

Best regards

Keith

The caudal genitalia of your specimen do not resemble those of Sympecma
paedisca, 
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**********************************
Xin YU
Lab. 205a, Institute of Entomology
College of Life Sciences, Nankai University,Tianjin 300071, CHINA
Tel. +86 22 23508290
Email: yuxin at mail.nankai.edu.cn
       lannysummer at hotmail.com
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