In Venezuela, the “metallic group” includes three species: Argia cupraurea Calvert, Argia jocosa Hagen in Selys, and Argia orichalcea Hagen in Selys. These are here diagnosed and illustrated, and their distribution in Venezuela is mapped. The larva of A. jocosa differs from the few other known larvae of the group in details of the prementum,…
Male, female and larva of Neocordulia caudacuta sp. nov. (holotype: Río Castaño, Aragua State, Venezuela; 21 vi 2007; deposited in MIZA) are described and illustrated. The new species belongs in the subgenus Mesocordulia. Male N. caudacuta differs from N. batest in details of hamule and penis, and in possessing a sharp, erect dorsomedian spine on…
Elasmothemis rufa sp. nov. (holotype: Venezuela, Amazonas, Río Cataniapo), Macrotbemis taurepan sp. nov. (holotype: Venezuela, Bolívar, El Paují), and Oligoclada garrisoni sp. nov. (holotype: Venezuela: Amazonas, San Fernando de Atabapo) are described and illustrated. All holotypes are deposited at MIZA. Macrothemis heteronycha and Micrathyria paruensis are recorded from Venezuela for the first time, and Micrathyria…
Heteragrion makiritare sp. nov. is described from two males from the Pantepui region – holotype: Venezuela, Amazonas State, Marahuaka, Sima (3°43′N, 65°31′W), 1,140 m a.s.l., MIZA, no. 17250. It belongs in the species group whose paraprocts are absent in the male sex. The identity of H. macilentum is elucidated by examining its lectotype and a…
Lamproneura lucerna gen. nov., sp. nov. (Protoneuridae) is described from a male from the Turimiquire mountains, in northeastern Venezuela. Penis morphology places the new genus close to Forcepsioneura, Psaironeura and Roppaneura., The first Venezuelan record of the genus Phasmoneura is presented. Cyanallagma ferenigrum sp. nov. (Coenagrionidae) is described from a male and a female from…
Aeshna (Hesperaeschna) condor sp. nov. is described and illustrated from four males and six exuviae. The adult color pattern does not resemble that of any other Venezuelan species, but structurally the new species comes closest to A. (H.) punctata and A. (H.) joannisi. This latter is here recorded for the first time from Venezuela, and…
This paper is dedicated to Philip S. Corbet on the occasion of his 70th birthday.
Tropical America is currently experiencing the establishment of a new apex insect predator, the Paleotropical dragonfly Hemianax ephippiger (Odonata: Aeshnidae). H. ephippiger is migratory and is suggested to have colonised the eastern Neotropics by chance Trans-Atlantic displacement. We report the discovery of H. ephippiger at three new locations in the Caribbean, the islands of Bonaire,…
Detailed descriptions and illustrations are provided of the ultimate instar larvae of Argia medullaris and Argia variegata from Colombia. The principal features are outlined and compared with other species. Argia medullaris differs from other species of the genus by the parallel width of the lateral gills and prominent ligula; the A. variegata larva can be…
Adult female and ultimate stadium larva of Mesagrion leucorrhinum are formally described and illustrated based on material from three locations in Antioquia, Meta and Cundinamarca Departments, Colombia. The species is sexually dimorphic. The ♀ is distinguishable from other related genera by a pair of notches in the prothoracic anterior lobe and shares with Heteropodagrion and…