From February 14-20, 2006, the Orthoptera fauna of Fuerteventura was studied. For this purpose the distribution of Orthoptera was mapped on 100 study sites. Fifteen species were recorded The most common species, Dericorys lobata (Brullé, 1840), occurred on 75 % of all sites either as nymphs or adults. The Fuerteventuran specimens of Wernerella pachecoi (Bolívar, 1908) turned out to be a new species of Sphingonotus, which was recorded from 54 % of the sites, most of which had sparse vegetation. Another Fuerteventuran endemic, Arminda fuerteventurae Holzapfel, 1972, was found on 50 % of the sites, mainly on those dominated by grasses and forbs. Omocestus simonyi Krauss, 1892 was restricted to grassy vegetation and occurred on 44 % of the sites. This species often co-occurred with Platycleis sabulosa Azam, 1901, but the latter species was less common. Purpuraria erna Enderlein, 1929 was only found on two sites in low abundance, where it occurred on its host plants (Euphorbia spp.). In addition, Sphingonotus rubescens (Walker, 1870), Sphingonotus savignyi Saussure, 1884, Schistocerca gregaria (Forskal, 1775) and Acrotylus insubricus (Scopoli, 1786) were recorded from dry, open areas. Acrotylus longipes (Charpentier, 1845) occurred exclusively on fine sand dunes. Pyrgomorpha conica tereticornis (Brullé, 1840) was recorded from one study site in the southeast of the island. In the course of this study, three cricket species were recorded for the first time from Fuerteventura: the synanthropic species Acheta domesticus (Linnaeus, 1758) as well as Acheta meridionalis (Uvarov, 1921) and Eumodicogryllus burdigalensis (Latreille, 1804). The latter two species were mainly found on damp sites and banks of small pools.
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