Odonata - Entomological Society of Latvia - Latvijas Daba

unneum (Table 3). 59 distribution maps have been created. According to the relative distribution
of species:
6. 9 species are very common;
7. 12 species are common;
8. 19 species are moderately represented;
9. 10 species are localized;
10. 9 species are very rare.
Table 3. The number of dragonfly observations (number of entries in data base; n) and the
percentage (n=12065) to the total number of dragonfly observations in Latvia.
Taxon
Familia Calopterygidae
Calopteryx splendens (Harris, 1782)
Calopteryx virgo (Linnaeus, 1758)
Familia Lestidae
Lestes dryas Kirby, 1890
Lestes sponsa (Hansemann, 1823)
Lestes virens (Charpentier,1825)
Sympecma paedisca (Brauer, 1877)
Familia Platycnemididae
Platycnemis pennipes (Pallas, 1771)
Familia Coenagrionidae
Ischnura elegans (Vander Linden, 1820)
Ischnura pumilio (Charpentier, 1825)
Enallagma cyathigerum (Charpentier, 1840)
Coenagrion armatum (Charpentier, 1840)
Coenagrion johanssoni (Wallengren, 1894)
Coenagrion hastulatum (Charpentier, 1825)
Coenagrion lunulatum (Charpentier, 1840)
Coenagrion puella (Linnaeus, 1758)
Coenagrion pulchellum (Vander Linden, 1825)
Erythromma najas (Hansemann, 1823)
Pyrrhosoma nymphula (Sulzer, 1776)
Nehalennia speciosa (Charpentier, 1840)
Familia Aeshnidae
Brachytron pratense (Müller, 1764)
Aeshna caerulea (Ström, 1783)
Aeshna crenata Hagen, 1856
Aeshna cyanea (Müller, 1764)
Aeshna grandis (Linnaeus, 1758)
Aeshna isoceles (Müller, 1767)
Aeshna juncea (Linnaeus, 1758)
Aeshna mixta Latreille, 1805
Aeshna subarctica Walker, 1908
Total observation number per
species
n %
552 4.6
483 4.0
135 1.1
462 3.8
48 0.4
216 1.8
287 2.4
277 2.3
11 0.1
436 3.6
49 0.4
22 0.2
403 3.3
59 0.5
450 3.7
528 4.4
471 3.9
131 1.1
53 0.4
165 1.4
4 0.03
2 0.02
304 2.5
562 4.7
81 0.7
171 1.4
122 1.0
31 0.3
55