European journal of taxonomy : EJT
Paris : Muséum National d'Histoire Naturelle
ISSN: 2118-9773
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959
Venezuela’s diverse land ecosystems are grouped into four major regions (coast-islands, low plains, hills and mountains), ranging from sea level up to 4978 m. The Scarabaeinae (Scarabaeidae, Coleoptera) currently encompass 278 genera and 6837 species worldwide, but are poorly inventoried in Venezuela. We reviewed the literature and the material housed at the entomological collection of the Universidade Federal de Mato Grosso (CEMT), Cuiabá, Brazil, and found 32 genera and 149 species of dung beetles as certainly present in Venezuela. Twenty-four of these species are, as far as current knowledge goes, endemic to the country, while another 34 are restricted to Venezuela and the neighbouring countries of Colombia, Brazil, Trinidad and Tobago, and Guyana. Additionally, 36 species are deemed potential inhabitants of the country, whilst 14 others previously recorded in the literature as part of the Venezuelan fauna are here concluded not to be actually present there. Complete literature is listed for each genus and species, and information on type material, material examined, worldwide distribution, and Venezuelan records is also presented.
958:48-76
Four novel species of subgenus Russula crown clade collected from northwestern China are described based on morphological and phylogenetic evidence. Morphologically, R. griseorosea Y.Song sp. nov. (subsection Puellarinae) is characterized by its brown pileus with a grayish pink tint, basidiospores with warts often connected by fine lines, orthochromatic pileipellis with long terminal cells and septate pileocystidia; R. micangshanensis Y.Song sp. nov. (subsection Olivaceinae) is diagnosed by its large basidia, hymenial cystidia and basidiospores, and spore ornamentations with unequal crests and often twinned warts, which give the spore distinctive appearance; R. minirosea Y.Song sp. nov. (subsection Laricinae) has very small basidiocarp with pileus less than 3.3 cm in diameter, basidiospores with fine reticulum, small basidia, and septate pileocystidia; R. purpureomarginalis F.Li & Y.Song sp. nov. (subsection Xerampelinae) has large basidiospores with often isolated ornamentations, slim basidia and often septate flexuous pileocystidia. Differences between the four novel species and their closely related taxa were analyzed. Phylogenetic analyses based on both ITS and multi-locus (LSU, rpb2 and tef1) were carried out to confirm the distinct taxonomic status of the four novel species.
958:203-241
The identification of females of Agapostemon angelicus Cockerell and A. texanus Cresson has been a longstanding problem, with females of the two species considered morphologically indistinguishable. Prompted by recent collections in Minnesota that unexpectedly revealed the presence of A. angelicus as well as a cryptic form of A. texanus, we reassess the taxonomy of the “doubly punctate” Agapostemon species in both Minnesota and the broader United States. Examination of both new and old specimens has allowed us to identify A. angelicus females morphologically, and we reinstate A. subtilior Cockerell stat. rev. from synonymy with A. texanus. We recognize a number of new synonyms of A. subtilior that were formerly considered synonyms of A. texanus: A. borealis Crawford syn. nov., A. californicus Crawford syn. nov., A. texanus vandykei Cockerell syn. nov., A. californicus psammobius syn. nov., A. angelicus idahoensis syn. nov., and A. californicus clementinus syn. nov. We provide keys and diagnoses to allow for morphological identification of A. angelicus, A. subtilior, and A. texanus. We show that A. texanus s. s. has a relatively restricted range in the prairie region of the United States, with A. subtilior making up the bulk of what was formerly considered A. texanus. We further show that A. angelicus has a more extensive range than previously thought. Additional work remains, as there are a number of gaps in the known ranges of these species and more taxonomic work is required in the A. texanus complex south of the United States.
Apoidea, cryptic species, identification key, Halictinae, America
958:77-113
The limno-terrestrial tardigrade fauna of Argentina has been investigated methodically and with modern criteria just in the last two decades, but current knowledge is still incomplete. So far, about 119 limno-terrestrial species are known for the country, of which only 6 belong to the genus Minibiotus R.O. Schuster, 1980. Until 1988, this genus was monotypic, with only Minibiotus intermedius (Plate, 1888), but today the number of species of the genus has risen to 55. In the present contribution, we describe with an integrated approach (PCM, SEM, morphometry and DNA analysis with COI, ITS2, 18S and 28S genes) a new species of Minibiotus from Salta City (Argentina). Minibiotus dispositus sp. nov. has ten transverse bands of variously shaped cuticular pores, arranged in transverse rows, with differences between smaller and larger specimens. Three macroplacoids and a microplacoid are present in the pharynx. The eggs have small conical processes and granulated chorion. The new species is morphologically and morphometrically well differentiated from all other species of the genus, and genetically from the up to date sequenced species. The new species description gave the occasion to broaden knowledge on taxonomy, morphology and faunistics of the genus Minibiotus, and on the tardigrade fauna of Argentina and the Neotropical region.
958:114-150
Four new species of Zanna Kirkaldy, 1902 are described: two from Cambodia, Z. chartieri Constant sp. nov. from Tatai in Koh Kong Province and Z. limbourgi Constant sp. nov. from Phnom Aural Wildlife Sanctuary in Kampong Speu Province and Kbal Spean in Siem Reap Province, and two from Vietnam: Z. bidoupana sp. nov. from Bidoup-Nui Ba National Park in Lam Dong Province and Z. kusamae sp. nov. from Dong Nai Biosphere Reserve in Dong Nai Province. Illustrations of the holotypes and male genitalia, photographs of live specimens and nymphs, a distribution map and host plants records are provided. The type of Zanna chinensis (Distant, 1893) is also illustrated for comparison. The genus Zanna now contains 37 species.
958:151–176
This paper describes a new genus and species of Achilidae (Hemiptera: Fulgoromorpha) Achiplecton stilleri gen. et sp. nov from the newly established tribe Achiplectini trib. nov. This tribe belongs to one of three Achilidae subfamilies, Myconinae, and is found solely in the West Cape of Southern Africa. The whole region is thought to be one the of the Earths most biologically diverse areas, also characterized by the phylogenetic antiquity of its invertebrates. Morphological peculiarities of the new achilids are discussed, especially modification of the head capsule presenting the ‘laternarisation syndrome’, which is unique in Achilidae, and tegmina modifications, without the postclaval lobe overlapping.
958:177–202
The poorly studied orthocentrine genus Stenomacrus Förster, 1869 is reported from Kenya and Burundi for the first time. Eight new species are described and illustrated: S. clypeatus sp. nov. from Burundi as well as S. communis sp. nov., S. glabratus sp. nov., S. luteus sp. nov., S. pronotalis sp. nov., S. scutellaris sp. nov., S. valvator sp. nov., and S. vuriaensis sp. nov. from Kenya. An identification key to species occurring in Africa and adjacent territories is provided.
958:1-47
The flat wasp genus Megaprosternum (Scleroderminae) is studied and revised. Fifteen species are recognized, including five previously described ones: M. cleonarovorum, M. longiceps, M. neolongiceps, M. norfolcensis, and M. pentagonal. Additionally, 10 new species are described and illustrated: M. aka sp. nov. and M. bayaka sp. nov. (both from the Central African Rep.), M. chamorro sp. nov., M. hmong sp. nov., M. kariri sp. nov., M. kayin sp. nov., M. navatu sp. nov., M. nuaulu sp. nov., M. samburu sp. nov., and M. wakawaka sp. nov. An emended diagnosis and a detailed discussion regarding the morphological diagnostic characters of this genus and its species, along with comments about the distribution pattern of Megaprosternum, are also presented. Additionally, a taxonomic key for males and females of all species is provided.
958:242–290
The Afrotropical hoverflies belonging to the genus Mallota Meigen, 1822 (Diptera: Syrphidae) are revised. Ten species are recognized, of which four are new to science: Mallota glabra sp. nov., M. hircus sp. nov., M. wyatti sp. nov. and M. stipulata sp. nov. Merodon edentulus Macquart, 1855 is considered a junior synonym of Eristalis dasyops Wiedemann, 1819. Lectotypes are designated for Eristalis dasyops, Merodon edentulus, Mallota pachymera Bezzi, 1915 and Helophilus extremus Loew, 1858. The taxonomic history of the placement and identity of the different species of Mallota is presented. Their relationships, as well as affiliations with Afrotropical representatives of the genera Eristalis Latreille, 1804 and Myathropa Rondani, 1845, is briefly discussed based on morphological and DNA barcode data.
957
The genus Elmomorphus Sharp, 1888 is redescribed based on morphological characters. Elmomorphus bryanti Hinton, 1935, E. montanus (Grouvelle, 1913), E. prosternalis Hinton, 1935, and E. striatellus Delève, 1968 are redescribed based on type material. Elmomorphus nepalensis Satô, 1981 is redescribed based on material collected in the vicinity of the type locality. Eighteen species of Elmomorphus were known so far world-wide, and only five species have been recorded from the study area (India, Nepal, Bhutan, Myanmar, China, Thailand, Laos, Cambodia, and Vietnam). In the present revision, 45 new species are described: E. auratus sp. nov. (China), E. auripilosus sp. nov. (Vietnam), E. bispinosus sp. nov. (China), E. calvus sp. nov. (China, Vietnam), E. catenatus sp. nov. (China), E. comosiclunis sp. nov. (China), E. corpulentus sp. nov. (China), E. cuneatus sp. nov. (Thailand), E. curvipes sp. nov. (China, Vietnam), E. dentipes Kodada, Selnekovič & Jäch sp. nov. (China, Laos, Myanmar, Thailand, Vietnam), E. depressus sp. nov. (China), E. donatus Kodada, Selnekovič & Jäch sp. nov. (China, Vietnam), E. ellipticus sp. nov. (China), E. elmoides sp. nov. (Vietnam), E. fusiformis sp. nov. (China), E. glabriclunis sp. nov. (China), E. globosus sp. nov. (China), E. hamatus sp. nov. (China), E. hongkong sp. nov. (China), E. horaki Kodada, Selnekovič & Jäch sp. nov. (Cambodia, Myanmar, Thailand), E. jendeki Kodada, Selnekovič & Jäch sp. nov. (Vietnam), E. jii sp. nov. (China), E. longitarsis sp. nov. (Thailand), E. mazzoldii sp. nov. (Thailand), E. minutus sp. nov. (China), E. oblongus sp. nov. (Vietnam), E. ovalis Kodada, Selnekovič & Jäch sp. nov. (China), E. parabrevicornis sp. nov. (China), E. paradonatus Kodada, Selnekovič & Jäch sp. nov. (China), E. paramontanus Kodada, Selnekovič & Jäch sp. nov. (China, Laos, Malaysia, Myanmar, Thailand, Vietnam), E. parvulus sp. nov. (Thailand), E. punctulatus sp. nov. (China), E. reticulatus sp. nov. (China), E. sausai Kodada, Selnekovič & Jäch sp. nov. (Vietnam), E. schillhammeri sp. nov. (China), E. schoenmanni sp. nov. (China), E. siamensis Kodada, Selnekovič & Jäch sp. nov. (Cambodia, Laos, Myanmar, Thailand, Vietnam), E. similis sp. nov. (China, Laos, Vietnam), E. simplex sp. nov. (China), E. simplipes sp. nov. (Vietnam), E. superficialis sp. nov. (China), E. sulcatus sp. nov. (China), E. umphangicus Kodada, Selnekovič & Jäch sp. nov. (Thailand), E. vietnamensis sp. nov. (Vietnam), and E. yunnanensis Kodada, Selnekovič & Jäch sp. nov. (China). The genus Elmomorphus is recorded for the first time from Bhutan, Cambodia, Myanmar, and Laos. In China (31 spp. from Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hong Kong, Hubei, Hunan, Jiangxi, Shaanxi, Yunnan, Zhejiang) and Vietnam (16 spp.), this genus is especially diverse.
