The final larval stadium of four species of Cora are described and compared with known species in the genus. Cora skinneri Calvert, 1907, C. semiopaca Selys, 1878 and C. lugubris Navás, 1934 are described and illustrated for the first time using material from Costa Rica for the first two and from Colombia for the latter….
Description of the final stadium larva of Calicnemia sinensis Lieftinck, with discussion of the larval characters of genus Calicnemia Strand (Odonata: Zygoptera: Platycnemididae)
The final stadium larva of Calicnemia sinensis Lieftinck is described and illustrated in detail. It is characterized by (1) palpal lobe of prementum with two end hooks of unequal size, the inner longer and sharper, and the outer shorter and stouter; (2) inner side of palpal lobe with five long setae above…
The subfamily Platycnemidinae (Zygoptera: Platycnemididae) in Thailand, with description of the final stadium larva of Copera chantaburii Asahina, 1984
Within the damselfly subfamily Platycnemidinae, eight species are currently recognized in South-East Asia. The final stadium larvae of only three of them have been so far described. The final stadium larva of Copera chantaburii is described and illustrated for the first time, based on reared specimens, and new provincial records both of larvae and adults…
A description of the final stadium larva of Calicnemia gulinensis Yu & Bu, 2008 (Odonata: Platycnemididae)
The final stadium larva of Calicnemia gulinensis is described here for the first time. The larva can be distinguished from other known species of the genus Calicnemia by the arrangement of setae on premental edges and the number of setae on labial palpi. The important morphological characters of the caudal gills and the possible functional…
A description of the larva of Mesopodagrion tibetanum australe (Odonata: “Megapodagrionidae”)
The larva of the genus Mesopodagrion was identified with the help of DNA barcoding and described for the first time. The larvae have flat horizontal gills resembling those of Argiolestidae but the adults lack setae on the shaft of the genital ligula. Molecular data are shown to be useful and necessary in larval identification and…
A description of the larva and discussion of radiation in the phytotelm breeding damselfly genus Papuagrion in New Guinea (Odonata: Zygoptera: Coenagrionidae)
The larva of Papuagrion is described and illustrated for the first time based on two specimens collected near Goroka, Papua New Guinea. The larvae were identified by matching the mitochondrial marker COI with that of an adult specimen collected at the same locality. The larvae were found in the leaf axils of Pandanus trees which…
Larval burrow morphology and groundwater dependence in a mire-dwelling dragonfly, Petalura gigantea (Odonata: Petaluridae)
Most species of petalurid dragonflies have a fossorial larval stage, which is unique in the Odonata. Larvae typically excavate burrows in soft peaty soils in mires, seepages or along stream margins, which are occupied by a single larva throughout the long larval stage. This paper reports on a study of burrow morphology in Petalura gigantea,…
Description of the larva of Trineuragrion percostale Ris (Odonata: Megapodagrionidae) with a key to the larvae of New Caledonian genera of Megapodagrionidae
The larva of Trineuragrion percostale is described and illustrated based on an exuvia collected with the teneral female. Four more exuviae sampled without imagines are added for comparison and discussion of morphological variations. This is the first time the larva has been associated with the correct species, although the larval description was given earlier. Lieftinck
Description of the larva of Argia percellulata (Odonata: Coenagrionidae)
The larva of Argia percellulata is described and figured. It falls into the group of Argia larvae with a very prominent ligula and one palpal seta, but differs from its closest relatives by having tibiae usually with two well-defined dark rings, posterior margin of sternite 6 smooth, and posterior margin of sternite 7 smooth medially…
A description of the larva of Heliaeschna uninervulata Martin (Odonata: Aeshnidae) from Singapore, with notes on its relationships
The larva of Heliaeschna uninervulata is described and figured for the first time. Its characters mostly fall within the limits of variation of Gynacantha spp. Comparison of the larval characters of H. filostyla, the only other member of the genus for which the larva is known, suggests that it is not congeneric with H. uninervulata….