Description of the last instar larva of Cordulegaster vanbrinkae and emergence place from northern Iran (Odonata: Cordulegastridae)
Author
HoluŠa, Otakar
text
International Journal of Odonatology
2022
2022-06-22
25
72
79
https://doi.org/10.48156/1388.2022.1917175
journal article
310144
10.48156/1388.2022.1917175
5478100f-e5a3-4f1d-ad56-8332df31f98e
2159-6719
15554929
Table 2. Comparison of characters of known Cordulegaster larvae of eastern complex (instar F-0 and exuviae of C. vanbrinkae (n=30), C. picta (n=30) and C. heros (n=30)) | Cordulegaster vanbrinkae | Cordulegaster picta | Cordulegaster heros |
|---|
| Length of spine on segment 8 | 0 | 0–0.25 | 0.3–0.5 |
|---|
| Length of spine on segment 9 | 0.05–0.3 | 0.15–0.35 | 0.4–0.6 |
|---|
| Ratio lateral spine 9/segment 9 | 0.03–0.15 | 0.12–0.22 | 0.20–0.32 |
|---|
| Ratio cerci/S10 | 1.35–2.08 | 1.40–2.33 | 1.38–2.30 |
|---|
| Number of palpal setae | 5 | 5 | 5 |
|---|
| Number of long premental setae | 5 (rarely 6) | 6 (rarely 7) | 5 |
|---|
| Number of short premental setae | 1–3 | 3–4 | 2–3 |
|---|