The damselfly and dragonfly watercolour collection of Edmond de Selys Longchamps: II Calopterygines, Cordulines, Gomphines and Aeschnines

Abstract

Garrison made major contributions in finding current species names for the Selys' names and provided reference to other experts for consultation. For those Selys' names, that are not linked to current species names, additional information and possible species names are suggested. The Selys' names are classified in the four sous--familles of Selys: Calopterygines, Cordulines, Gomphines, Aeschnines. [ ] no name Calopterygines[ ] (Ca21a) [ ] (Ca21b). These illustrations without name refer to the species described by Selys in 1889 as Palaeophlebia superstes and presently known as Epiophlebia superstes (personal communication, Hämäläinen, 29 November 2015). Another illustration of Palaeophlebia superstes with a name is present in the watercolour collection (Ca22a). Current name (expert opinion) is Epiophlebia superstes (Selys, 1889).Amphipteryx agrionides (Ca146a). This illustration refers to Amphipteryx agrioides Selys, 1853 (personal communication, Hämäläinen, 29 November 2015. Current name (expert opinion) is Amphipteryx agrioides Selys, 1853.Amphipteryx argyoides (Ca147a). This illustration refers to the species Tetraneura argyoïdes that was described by Selys in 1859. The sous--genre Tetraneura was placed by Selys in the genre Amphipteryx. Mistakenly the genre name was used in the name that Selys wrote on this illustration. Kirby (1890) replaced the preoccupied genus name Tetraneura with Devadatta (personal communication, Hämäläinen, 29 November 2015). Current name (expert opinion) is Devadatta argyoides (Selys, 1859). astrata (Ca140a). This illustration refers to the species described as Calopteryx atrata by Selys in 1853. The female wing in the illustration has no pterostigma conform the description of Calopteryx atrata in the Monograph written by Selys and Hagen (1854). Presently this species is known as Atrocalopteryx atrata (Selys, 1853) (personal communication, Hämäläinen, 29 November 2015). Other illustrations of this species are the watercolour of Calopteryx atrata (Ca34b) and the drawing of a wing of Calopteryx atrata (Ca 133a). Current name (expert opinion) is Atrocalopteryx atrata (Selys, 1853).biforata (Ca170a). This drawing refers to Heliocypha biforata (Selys, 1859), described by Selys as Rhinocypha biforata in 1859 (personal communication, Hämäläinen, 29 November 2015). There is also a watercolour of Rhinocypha biforata (Ca116b). Current name (expert opinion) is Heliocypha biforata (Selys, 1859).biseriata (Ca169a). This illustration refers to Heliocypha biseriata (Selys, 1859), described by Selys as Rhinocypha biseriata in 1859 (personal communication, Hämäläinen, 29 November 2015). This species is also depicted in the watercolour of Rhinocypha biseriata (Ca115b). Current name (expert opinion) is Heliocypha biseriata (Selys, 1859).Calopteryx dimidiata hudsonica (Ca25a). The illustration of the male is removed and "v pl. Martin Calopt" is written in the notes on the illustration. This illustration refers to a female specimen from Hudson bay that Selys first identified as Calopteryx virginica Wes...

Parametric and Statistical Study of the Wing Geometry of 75 Species of Odonata

“…Previous research has shown that the wings of damselfly and dragonfly are different [44]. This is also shown by our data, particularly relating to the nodus and pterostigma.…”

“…The pterostigma changes the center of mass of the wing at the leading edge, which leads to more stability in flapping flight [43]. The pterostigma is located near the wingtip; in Aeshna Juncea (one the large species of hawker dragonflies from the Aeshnidae family) they have mass relative to the FW and HW of around 9% and 16% respectively [44]. By comparing the results, it can be understood that the location of the pterostigma of the FW to HW ratio is 1.07.…”