The Passalidae (Coleoptera, Scarabaeoidea) from Bolivia, with the descriptions of three new species.
ABSTRACT: Employing data from literature, examination of specimens in collections, and a field trip, a list of the species of Passalidae from Bolivia is elaborated. A total of 38 species is reported, including new records of Passalus inca Zang, 1905 and P. lunaris (Kaup, 1871), and three new brachypterous species: Passalus bolivianus sp. nov., P. canoi sp. nov., and P. gonzalezae sp. nov. Most of the species (27) belongs to the Passalini tribe, especially to the genus Passalus Fabricius, 1792 (19 species); the Proculini tribe is represented by eleven species in three genera. The number of species of Bolivia is low and reflects the lack of a systematic exploration of this country; more surveys are needed, especially in ecosystems such as montane forest and tropical rain forest.
Project description:A new genus of Xanthopygina rove beetles is described here as <i>Lendatus</i> <b>gen. nov</b>. The new genus includes three new species: <i>L. bolivianus</i> <b>sp. nov.</b>, described from Bolivia, <i>L. philothalpiformis</i> <b>sp. nov.</b> described from Costa Rica and Panama, and <i>L. platys</i> <b>sp. nov.</b> described from Bolivia, Colombia, Ecuador and Peru. <i>Lendatus</i> belongs to the <i>Isanopus</i> group of genera of Xanthopygina and can distinguished from all the genera based on the unique punctation on the pronotum and the long apical setae of the paramere. A key to the three species of <i>Lendatus</i> along with photographs and illustrations is provided for the identification of species.
Project description:Four new species of "non-spiny" Solanum from South America are described. Solanumlongifilamentum Särkinen & P.Gonzáles, sp. nov. (Morelloid clade) is widespread from Ecuador to Bolivia and is most similar to Solanummacrotonum Dunal from Central and northern South America. Solanumantisuyo Särkinen & S.Knapp, sp. nov. (Morelloid clade) is found on the eastern Andean slopes in Ecuador, Peru and Bolivia and is most similar to the widespread lower elevation species Solanumpolytrichostylum Bitter. Solanumarenicola Särkinen & P.Gonzáles, sp. nov. (Morelloid clade) is found in low elevation habitats on the eastern Andean slopes and in Amazonia of Peru and Bolivia and is most similar to the higher elevation species Solanumaloysiifolium Dunal of Bolivia and Argentina. Solanummariae Särkinen & S.Knapp, sp. nov. (Potato clade) is endemic to Cajamarca Department in Peru, and is most similar to the widespread Solanumcaripense Dunal. Complete descriptions, distributions and preliminary conservation assessments of all new species are given.
Project description:Five new species of armored scale insect from Argentina are described and illustrated based upon morphological and molecular evidence from adult females: Chortinaspis jujuyensis sp. nov., Clavaspis patagonensis sp. nov., Hemiberlesia ozolita sp. nov., Melanaspis lilloi sp. nov., and Melanaspis targionoides sp. nov. The genera Chortinaspis and Melanaspis are recorded for the first time from this country. An identification key to all recorded species from tribe Aspidiotini occurring in Argentina is provided.
Project description:The new genus Coynemagen. n. is described as parasite of the two passalid beetles from Cuba: Passalus interstitialis Escholtz, 1829 (type host) and Passalus pertyi Kaup, 1869. Females are characterized by the shape of their cephalic end, cervical cuticle unarmed, a sub-cylindrical procorpus with its base abruptly dilated, fore region of intestine dilated as a sac-like structure, genital system didelphic-amphidelphic and eggs markedly ovoid and smooth-shelled. Males have a digestive system similar to females, tail sharply pointed, bearing a Y-like thickening of the dorsal cuticle. They also present a big, median, mammiform pre-cloacal papillae and a pair of small, sub-dorsal pre-cloacal papillae anterior to the cuticular thickening of the tail.
Project description:Fossil records of the subfamily Omaliinae are fragmentary and most of them are less informative compression fossils. Baltic amber from the mid-Eocene of northern Europe is one of the most important sources of insect fossils, but only two reliably placed omaliines have been described. Here, we provide a general overview of this subfamily in Baltic amber. In total, five new extinct species of four genera in three tribes are described and illustrated: Geodromicusbalticus sp. nov. (Anthophagini), Eusphalerumkanti sp. nov. (Eusphalerini), Paraphloeostibamorosa sp. nov., Phyllodrepadaedali sp. nov., and Ph.icari sp. nov. (Omaliini). Additionally, we report on four species belonging to Eusphalerum, which remain unnamed, from the same amber deposit. The records of Eusphalerum include the first fossils of the tribe Eusphalerini, while that of Geodromicus may represent the second and the first definitive fossil record of the genus and tribe Anthophagini. Our discoveries highlight the unexpected palaeodiversity of Omaliinae in Baltic amber, further reinforcing the coexistence of thermophilous and temperate-loving beetles in Baltic amber and potentially indicating wetland and riparian habitats of amber-producing forests.
Project description:The genus Enderleiniella Becker, 1912 is revised. The genus is distinguished on the basis of a somewhat flattened head with the inner vertical setae located anteromedially to the outer vertical setae, three lightly incised lines on the scutum, trapezoidal or rectangular scutellum with marginal setae borne on tubercles, reduced alula and anal angle of the wing, and the structure of the male genitalia. The genus contains eleven species in the northern Neotropical and southern Nearctic Regions: E. caerulea sp. nov. (type locality: Blue Creek, Belize); E. cryptica sp. nov. (type locality: 24 km W Piedras Blancas, Costa Rica); E. flavida sp. nov. (type locality: Emerald Pool, Dominica); E. longiventris (Enderlein, 1911) (type species; type locality: Costa Rica); E. maculata sp. nov. (type locality: Xilitla, San Luis Potosi, Mexico); E. marshalli sp. nov. (type locality: Guanacaste, Costa Rica); E. maya sp. nov. (type locality: Las Escobas, Guatemala); E. punctata sp. nov. (type locality: Potrerillo, Bolivia); E. tripunctata (Becker, 1916) (type locality: San Mateo, Costa Rica); E. tumescens sp. nov. (type locality: San Esteban, Venezuela); and E. wheeleri sp. nov. (type locality: Turrialba, Costa Rica).
Project description:The genus Sivaloka Distant, 1906 (Hemisphaeriinae, Kodaianellini) is recorded from China for the first time, with two new species Sivaloka arcuata Chang & Chen, sp. nov. (China: Guizhou) and Sivaloka trigona Chang & Chen, sp. nov. (China: Guangxi). One new species of Kodaianella Fennah, 1956, Kodaianella furcata Chang & Chen, sp. nov. (China: Guangxi) is also described and illustrated; female genitalia of two known species in Kodaianella are described. A checklist of species of the tribe Kodaianellini with their distribution and a key to genera are provided.
Project description:Two new species are added to the narrowly delimited genus Gochnatia. Of these, G. lojaensis sp. nov. represents a northern extension of the genus and tribe into Ecuador and G. recticulifolia sp. nov. occurs in northern Peru. In addition to descriptions for the two new species, a key is provided for all known species in the genus Gochnatia and a pubescence character is noted that clearly separates Gochnatia from Moquiniastrum.
Project description:We present a taxonomic revision of Cremastosperma, a genus of Neotropical Annonaceae occurring in lowland to premontane wet forest, mostly in areas surrounding the Andean mountain chain. We recognise 34 species, describing five as new here: from east of the Andes, C.brachypodum Pirie & Chatrou, sp. nov. and C.dolichopodum Pirie & Maas, sp. nov., endemic to Peru; C.confusum Pirie, sp. nov., from southern Peru and adjacent Bolivia and Brazil; and C.alticola Pirie & Chatrou, sp. nov., at higher elevations in northern Peru and Ecuador; and from west of the Andes, C.osicola Pirie & Chatrou, sp. nov. endemic to Costa Rica, the most northerly distributed species of the genus. We provide an identification key, document diagnostic characters and distributions and provide illustrations and extensive lists of specimens, also presenting the latter in the form of mapping data with embedded links to images available online. Of the 34 species, 22 are regional endemics. On the basis of the extent of occurrence and area of occupancy of species estimated from the distribution data, we designate IUCN threat categries for all species. Fourteen species proved to be endangered (EN) and a further one critically endangered (CR), reflecting their rarity and narrow known distributions.
Project description:Two new species of the tribe Hemisphaeriini: <i>Ceratogergithusbrachyspinus</i> Yang & Chen, <b>sp. nov.</b> (Yunnan) and <i>Neohemisphaeriusclavatus</i> Yang & Chen, <b>sp. nov.</b> (Guizhou) are described and illustrated. A checklist to Hemisphaeriini genera is provided. The generic characteristics of the genera <i>Ceratogergithus</i> Gnezdilov, 2017 and <i>Neohemisphaerius</i> Chen, Zhang & Chang, 2014 are redefined. Checklists and keys to the species of each genus are given.