Phacopteronidae

Abstract: Jumping plant-lice (Hemiptera: Sternorrhyncha: Psylloidea) are a group of phloem-feeding insects with nearly 4000 described species. Previous records from Colombia comprise 19 genera of all eight known families. The revision of material deposited in six Colombian and three foreign museums yielded another nine genera that constitute new country records. Material from 16 departments was examined. Each genus is diagnosed and information is provided on biology, damage and host-plants. Local distribution maps and a generic key for the identification of adults are provided.

Abstract: Psyllids are an economically important group of insects. Several species are serious emerging pests with regulatory significance. About 20 adventive species have been discovered in Florida in the past 20 years, including several pests. Additionally, five species new to science have been found. We provide an annotated checklist of Florida species with taxonomic information and identification tools, including keys to Florida genera and known species. Seventy species of Psylloidea currently are reported from Florida. Forty-one are native to Florida, with 12 endemic to the state. Twenty are adventive, the majority being from the Neotropics. One was introduced deliberately for biological control, seven represent temporary populations (eradicated, reared in quarantine), and one is a dubious record. Craspedolepta euthamiae Burckhardt and Halbert, new species, Katacephala wineriterae Burckhardt and Halbert, new species, Pseudophacopteron gumbolimbo Burckhardt and Halbert, new species, Nothotrioza longipedis Burckhardt and Halbert, new species, and Trioza myresae Burckhardt and Halbert, new species are described from Florida and are native endemic species. Aphalara persicaria Caldwell is redescribed and separated from similar species. Aphalara persicaria var. cubana Caldwell is confirmed as a junior synonym of Aphalara persicaria. The Florida records of Craspedolepta spp. are revisited and revised, including Craspedolepta euthamiae Burckhardt and Halbert, new species. Bactericera nigrilla (Crawford), new combination, revived status is recognized from Florida, redescribed, and distinguished from similar species. Rhinopsylla caldwelli Tuthill is transferred to Kuwayama Crawford and becomes Kuwayama caldwelli (Tuthill), new combination. Trioza maritima Tuthill is transferred to Leuronota Crawford and becomes Leuronota maritima (Tuthill), new combination. Species of Bactericera Puton on Salix L. (Salicaceae) in North America are reviewed. Bactericera flori (Crawford), new combination, new status. is determined to be the correct name for Trioza assimilis Crawford nec Flor (= Trioza flori Crawford, replacement name, = Trioza pomonae Aulmann, replacement name), and Trioza dubia Patch, new synonym. Lectotypes are designated for Trioza marginata Crawford, Trioza minuta Crawford, Trioza minuta similis Crawford, and Trioza nigra Crawford.

Abstract: The patterns of sperm formation in sternorrhynchous jumping plant-lice are reviewed. To date information is available for 143 species belonging to 54 genera, 17 subfamilies and seven of the eight psylloid families (only Phacopteronidae is not represented). For the majority of the taxa (116 species, 39 genera, 10 subfamilies and the families Calophyidae, Carsidaridae and Liviidae) the data presented here is new and is based exclusively on studies using light microscopy. Five distinct patterns of chromatin reorganisation during metamorphosis of spermatids into spermatozoa are recognised, described and named here types I-V. Types I and III were previously known, types II, IV and V are described here for the first time for jumping plant-lice. The most widespread is type I which is found in every family representing the plesiomorphic condition of spermiogenesis in Psylloidea. Types III and V are autapomorphic for the Aphalarinae and Spondyliaspidinae, respectively. Type IV was found only in two genera of Euphyllurinae and may represent a synapomorphy. Type II occurs in several unrelated subfamilies and is interpreted as a homoplasy. The patterns of sperm formation are stable within most of the examined subfamilies and can be used, to a certain extent, to elucidate phylogenetic relationships within Psylloidea.