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Taxonomic revision of the African assassin bug genus Fusius (Heteroptera: Reduviidae: Peiratinae)
(2023)
The African assassin bug genus Fusius Stål, 1862 is revised after the examination of type specimens with redescriptions of four species. Lectotypes of Pirates (Fusius) H-flavum Reuter, 1881 and Pirates rubricosus Stål, 1855 are designated. The status of P. (Fusius) H-flavum Reuter, 1881 is revalidated with its current name as F. hflavus (Reuter, 1881) stat. rev. et comb. nov. Seven new synonyms are proposed: F. dilutus Miller, 1957 = F. gowdeyi Miller, 1957 syn. nov. = F. liberiensis Miller, 1957 syn. nov. = F. dilutus anonymus Dispons, 1969 syn. nov. = F. dilutus vicinus Dispons, 1969 syn. nov.; F. distinctus Miller, 1957 = F. sylvestris Miller, 1957 syn. nov.; F. hflavus (Reuter, 1881) = F. hargreavesi Miller, 1957 syn. nov.; F. rubricosus (Stål, 1855) = F. ugandensis Miller, 1957 syn. nov. A key is provided to separate the four species of this genus. Diagnosis and distribution of Fusius are briefly discussed.
Oligoptilomera luberonensis gen. et sp. nov., first fossil representative of the gerrid subfamily Ptilomerinae, is described and figured from the Oligocene of Murs (Vaucluse, Southern France). Extant Ptilomerinae live in streams in warm climates, of the Indo-Malaysian, eastern Palaearctic, and Papouan regions. The discovery of this Oligocene French Ptilomerinae is in accordance with the putative age of the subfamily, at least older than the Eocene, and with the Indo-Malaysian affinities previously recorded for some other insects from the Oligocene of France. The two insect assemblages of Murs and Céreste are compared and the differences discussed. Although of similar ages, that from Murs was possibly corresponding to a more shallow water paleolake than that of Céreste.
The enigmatic millipede assassin bug genus Xenorhyncocoris Miller, 1938 is revised. Previously known species, X. caraboides Miller, 1938, X. princeps Miller, 1949 and X. schoenitzeri Putshkov & Bérenger, 1999, are diagnosed and photographed. A new species, X. attractivus sp. nov., is described based on male and female specimens from northeastern Borneo. The male of Xenorhyncocoris is reported for the first time, revealing the extreme sexual dimorphism present in the genus. The diagnosis of Xenorhyncocoris is extended in order to make it applicable to the new discovery, and a female-based key to species of the genus is updated. Relationships among Xenorhyncocoris and Vilius Stål, 1863, Neozirta Distant, 1919 and Schottus Distant, 1902 are briefly discussed.
The genus Oshaibahus El-Sonbati & Wilson gen. nov. is described with the type species Platymetopius zizyphi Bergevin, 1922. Two new species, O. kadiae El-Sonbati & Wilson gen. et sp. nov. from Sudan and O. linnavuorii El-Sonbati & Wilson gen. et sp. nov. from Iraq are described, and a new combination, Oshaibahus zizyphi (Bergevin, 1922) gen. et comb. nov. is proposed. The genus Masiripius Dlabola, 1981 (type species: Mahalana lugubris Distant, 1918) is redefined. An illustrated key to genera of the subtribe Opsiina and a key to species of Oshaibahus gen. nov. are presented to facilitate identification.
At Topes de Collantes Natural Park, Alturas de Trinidad, in the mountains of Guamuhaya province of Sancti Spiritus, Cuba, 30 species of scale insects belonging to 21 genera, four families and an endemic species were identifi ed. Specimens were deposited at the insect zoological collection of the Ecology and Systematics Institute (CZACC), Cuba. A literature review was carried out and the world data base on scale insects, ScaleNet was consulted. A cartographic map indicating the collecting sites at the scale of 1: 250,000 was created using MapInfo Professional Version 4.5 program. Twelve species are recorded for the fi rst time for the mountains of Guamuhaya and further 10 species are recorded for other locations. 82% of the species were polyphagous, 11% were oligophagous and 7% were monophagous. 57% were introduced species, 43% were native and 79% are cosmopolitan or widely distributed species. 30 species and 21 families of host plants were identifi ed, of which 23 plant species were new host plant records for 19 scale insect species, and 11 botanical families are for the fi rst time recorded as hosts for 10 scale insect species. There were signifi cant differences in the distribution of scale insects and their host plant species, botanical families and vegetation type.