RT Journal Article
T1 Darwin returns to the Galapagos: genetic and morphological analyses confirm the presence of Tramea darwini at the archipelago (Odonata, Libellulidae)
A1 Lorenzo Carballa, Maria Olalla
A1 Garrison, Rosser
A1 Encalada, Andrea
A1 Cordero Rivera, Adolfo
K1 2401.14-3 Taxonomía Animal Insectos
K1 2413.04 Morfología de Los Insectos
K1 2415 Biología Molecular
AB The status of the Tramea species present in the Galapagos Islands (Odonata, Libellulidae) has been the subject of a long-standing debate among odonatologists. Here, we use molecular and morphological data to analyze a series of specimens from this genus collected in 2018 from the Islands of San Cristobal, Isabela, and Santa Cruz, with the aim of determining their relationship with Tramea calverti Muttkowski and with their currently considered senior synonym T. cophysa Hagen. We combined sequencing of mitochondrial and nuclear DNA with morphological examination of several specimens of Tramea, including representatives of continental T. cophysa and T. calverti. Our molecular analyses place the Tramea from Galapagos in the same clade as T. calverti, with T. cophysa as a closely related species. The morphological analyses found only one consistent difference between T. cophysa and T. calverti: the presence of an accessory lobe in the male vesica spermalis of T. cophysa that is absent in T. calverti and in the Tramea from Galapagos. In agreement with our genetic results, the overall morphological differences documented by us indicate that the Galapagos material examined is conspecific with T. calverti. In light of this, and following the principle of priority in taxonomic nomenclature, Tramea calverti Muttkowski, 1910 should hereafter be considered a junior synonym of Tramea darwini Kirby, 1889.
PB Insects
SN 20754450
YR 2021
FD 2021
LK http://hdl.handle.net/11093/1918
UL http://hdl.handle.net/11093/1918
LA eng
NO Insects, 12(1): 21 (2021)
NO USFQ Collaboration Grants | Ref. 15782
DS Investigo
RD 19-ene-2025