https://www.um.edu.mt/library/oar/handle/123456789/68233 Wed, 08 Apr 2026 05:15:39 GMT 2026-04-08T05:15:39Z https://www.um.edu.mt/library/oar/handle/123456789/68258 Title: Two new records of Chalcidoidea (Hymenoptera) from the Maltese Islands with notes on their biology Authors: Cassar, Thomas; Mifsud, David Abstract: Two chalcidoids are reported from the Maltese Islands for the first time: Megastigmus pistaciae Walker (Megastigmidae) and Chalcis biguttata Spinola (Chalcididae). Notes on their biology are provided, with special reference to M. pistaciae reared from seeds of Pistacia lentiscus in Malta. Wed, 01 Jan 2020 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/68258 2020-01-01T00:00:00Z https://www.um.edu.mt/library/oar/handle/123456789/68257 Title: The jumping plant-lice (Hemiptera : Psylloidea) of the Maltese Islands Authors: Mifsud, David Abstract: Twenty-one species of jumping plant-lice accommodated in five different families are here recorded from the Maltese Islands in an annotated checklist. The Aphalaridae is represented by four species (Agonoscena targionii (Lichtenstein), Blastopsylla occidentalis Taylor, Colposcenia aliena (Löw) and Glycaspis brimblecombei Moore), of which two (B. occidentalis and G. brimblecombei) are alien species originating from Australia. The Homotomidae is represented by Homotoma ficus (Linnaeus) and Macrohomotoma gladiata Kuwayama, the latter being an alien species originating from the Far East. The Liviidae is represented by Euphyllura olivina (Costa), Diaphorina lycii Loginova and Psyllopsis fraxinicola (Foerster). The Psyllidae is represented by Acizzia uncatoides (Ferris & Klyver), Cacopsylla myrthi (Puton) and C. pyri (Linnaeus), of which Acizzia uncatoides is an alien species originating from Australia. Finally, the most species-rich family is the Triozidae, represented by nine species (Bactericera albiventris (Foerster), B. crithmi (Löw), B. trigonica Hodkinson, Heterotrioza chenopodii (Reuter), Lauritrioza alacris (Flor), Trioza centranthi (Vallot), T. galii Foerster, T. kiefferi Giard and T. urticae (Linnaeus)). For each of the above species, collection data, distribution, host- plant data and other relevant information is provided. Lycium intricatum Boiss. is a new host-plant record for Diaphorina lycii, and Rhamnus lycioides subsp. oleoides (L.) Jahand. & Maire is a new host-plant record for Cacopsylla myrthi. A host- plant shift is documented for Bactericera crithmi, which alternates between Ferula melitensis Brullo et al. in winter and Crithmum maritimum L. in spring. Wed, 01 Jan 2020 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/68257 2020-01-01T00:00:00Z https://www.um.edu.mt/library/oar/handle/123456789/68256 Title: The ensign wasps (Hymenoptera : Evaniidae) of the Maltese Islands Authors: Cassar, Thomas; Mifsud, David Abstract: The ensign wasp fauna of the Maltese Islands is reviewed for the first time. The family Evaniidae is represented by three species, the cosmopolitan Evania appendigaster (Linnaeus), the Mediterranean Zeuxevania splendidula (Costa), and Brachygaster minutus (Olivier), widely distributed in Europe and north-northeast Africa. A key to genera is provided. Wed, 01 Jan 2020 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/68256 2020-01-01T00:00:00Z https://www.um.edu.mt/library/oar/handle/123456789/68255 Title: The cockroach wasps (Hymenoptera : Ampulicidae) of the Maltese Islands Authors: Cassar, Thomas; Mifsud, David; Schmid-Egger, Christian Abstract: The cockroach wasp fauna of the Maltese Islands is reviewed. The family Ampulicidae is represented by solely two congeneric species, Dolichurus corniculus (Spinola) and Dolichurus haemorrhous A. Costa, the latter is here recorded for the first time from the Maltese archipelago. Wed, 01 Jan 2020 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/68255 2020-01-01T00:00:00Z