Identity and distribution of the little known Aeshna meruensis (Odonata: Aeshnidae)

Status and records of Aeshna meruensis are published for the first time. This species has been confused with A. rileyi for a long time, although A.R. Waterston separated and labelled specimens of both species in the collection of the Natural History Museum, London, as early as 1974. A. meruensis is known from seven localities in…

Abundance and vertical distribution of a bromeliad-dwelling zygopteran larva, Mecistogaster modesta, in a Costa Rican rainforest (Odonata: Pseudostigmatidae)

We compared the larval abundance of Mecistogaster modesta between bromeliads at ground level and canopy level in a primary tropical wet forest. Zygopteran abundance correlated strongly with bromeliad diameter at both levels. Although the per-bromeliad zygopteran abundance did not differ between vertical levels, M. modesta showed a strong vertical distribution in abundance owing to the…

Changing distribution patterns along a stream in adults of Calopteryx haemorrhoidalis (Odonata: Calopterygidae): a case of larval-drift compensation?

The distribution of an isolated population of adult Calopteryx haemorrhoidalis was studied along a small stream in NE Spain, during two-week or three-week summer periods over five years. Distribution patterns differed consistently between age groups. Reproductive activities took place along the entire stream, whereas the presence of tenerals and older immature individuals was restricted to…

The Odonata of Numidia, Northeastern Algeria Part I Status and distribution

Forty-five species of Odonata have been recorded within Numidia, which includes the El Kala and the Guerbes-Senhadja wetlands in northeastern Algeria. Five species are new to the area. Changes occurring in dragonfly diversity over a century and a half are discussed. This paper (Part I) deals with the status and spatial distribution of each recorded…

Ecology and distribution of Lindenia tetraphylla (Insecta, Odonata, Gomphidae): A review

Information (published and unpublished) on ecology, phenology, and geographical distribution of Lindenia tetraphylla is reviewed. It reaches from Sardinia (Italy; in the past also Spain) in the West, along the northern coasts of the Mediterranean, the Caspian region and the Middle East, to Kazakhstan, Kirgizia, Afghanistan, and Pakistan in the East. The southernmost record is…