Jumping plant-lice of Socotra Island (Hemiptera: Psylloidea)

The jumping plant-lice (Hemiptera: Sternorrhyncha: Psylloidea) of the island of Socotra (Yemen) are reviewed. A total of eight species are recorded, six of them for the first time from Socotra. Four species are described as new: Colposcenia dioscoridis sp. nov. (Aphalaridae), Diaphorina caliginosa sp. nov., D. hagherensis sp. nov. (both Liviidae: Euphyllurinae), and Pauropsylla jarmilarum sp. nov. (Triozidae). Males are described for the first time for Diaphorina elegans Burckhardt & Mifsud, 1998 and immatures for Pseudophacopteron verrucifrons Burckhardt & Harten, 2006 (Phacopteronidae). Two additional species, Cacopsylla sp. (Psyllidae) and Diaphorina sp., remain formally undescribed. Host plant, biological and distributional data (if available) are provided for each species and a key for identification of adults is supplemented. The jumping plant-louse fauna of Socotra is briefly discussed from a biogeographical viewpoint.Článek představuje přehled fauny mer (Hemiptera: Psylloidea) ostrova Sokotra (Jemen). Celkem je z ostrova známo osm druhů mer, z nichž šest je v článku ze Sokotry uvedeno poprvé. Čtyři druhy jsou popsány jako nové pro vědu: Colposcenia dioscoridis sp. nov. (Aphalaridae), Diaphorina caliginosa sp. nov., D. hagherensis sp. nov. (oba Liviidae: Euphyllurinae) a Pauropsylla jarmilarum sp. nov. (Triozidae). Dále jsou poprvé popsáni samci druhu Diaphorina elegans Burckhardt & Mifsud, 1998 a nymfy druhu Pseudophacopteron verrucifrons Burckhardt & Harten, 2006 (Phacopteronidae). Dva další druhy, Cacopsylla sp. (Psyllidae) a Diaphorina sp., zůstávají formálně nepopsané. Ke všem druhům jsou uvedeny údaje o jejich hostitelských rostlinách, způsobu života a rozšíření (pokud jsou známy), připojen je rovněž klíč na určování dospělců mer Sokotry. Fauna mer Sokotry je dále stručně diskutována z biogeografického hlediska.The jumping plant-lice (Hemiptera: Sternorrhyncha: Psylloidea) of the island of Socotra (Yemen) are reviewed. A total of eight species are recorded, six of them for the first time from Socotra. Four species are described as new: Colposcenia dioscoridis sp. nov. (Aphalaridae), Diaphorina caliginosa sp. nov., D. hagherensis sp. nov. (both Liviidae: Euphyllurinae), and Pauropsylla jarmilarum sp. nov. (Triozidae). Males are described for the first time for Diaphorina elegans Burckhardt & Mifsud, 1998 and immatures for Pseudophacopteron verrucifrons Burckhardt & Harten, 2006 (Phacopteronidae). Two additional species, Cacopsylla sp. (Psyllidae) and Diaphorina sp., remain formally undescribed. Host plant, biological and distributional data (if available) are provided for each species and a key for identification of adults is supplemented. The jumping plant-louse fauna of Socotra is briefly discussed from a biogeographical viewpoint