scholarly journals Taxonomic revision of the Afrotropical Agabus raffrayi species group with the description of four new species (Coleoptera, Dytiscidae)

ZooKeys ◽  
2020 ◽  
Vol 963 ◽  
pp. 45-79
Author(s):  
William F. Englund ◽  
Laban Njoroge ◽  
Olof Biström ◽  
Kelly B. Miller ◽  
David T. Bilton ◽  
...  

We revise the Afrotropical Agabus raffrayi species group, motivated by the discovery of new diversity in Kenya and South Africa. Whilst Agabus is mainly a holarctic genus, the Agabus raffrayi group is restricted to high altitude regions of eastern Africa and temperate parts of South Africa, from where we describe the southernmost Agabus in the world. The following new species are introduced: Agabus anguluverpussp. nov. from Mount Kenya in central Kenya, Agabus austellussp. nov. a widespread species in South Africa, Agabus riberaesp. nov. from the Kamiesberg and northeastern Cederberg ranges in the Northern and Western Cape Provinces of South Africa and Agabus agulhassp. nov. from the Agulhas Plain, Western Cape Province, South Africa. We provide a distribution map, a determination key for males, quantitative measurements of diagnostic characters, habitus photos and detailed photos of male genitalia for all described species in the group, as well as images of diagnostic characters and habitats. The presence or absence of an elongated section between the subapical broadening and the base of the apical and subapical teeth of the male aedeagus is a useful novel character, first revealed by our study. In contrast with the most recent revision of Afrotropical Agabus, we show that Agabus ruwenzoricus Guignot, 1936 is restricted to eastern Africa; South African records of this species having been based on misidentifications, no species of the group being common to southern and eastern Africa. We speculate that the raffrayi group may display phylogenetic niche conservatism, being restricted, as an originally temperate taxon, to higher elevations in tropical eastern Africa, but occurring at lower altitudes in temperate South Africa.

Zootaxa ◽  
2007 ◽  
Vol 1469 (1) ◽  
pp. 43-50
Author(s):  
GERNOT GEGINAT

Trechodes intermedia sp. nov. and T. kogelbergensis sp. nov. are described from South Africa. A third species, T. humeralis (Jeannel, 1930) comb.nov. is transferred to Trechosia Jeannel from the genus Cothresia Jeannel. All three species are macropterous, endemic to the South African Cape region, and together represent a new species group of the genus Trechosia. Keys to the species groups of the genus Trechosia and to the species of the new T. intermedia group are provided.


Phytotaxa ◽  
2013 ◽  
Vol 112 (2) ◽  
pp. 50 ◽  
Author(s):  
MICHAEL PINTER ◽  
ANDREAS BRUDERMANN ◽  
MANUEL B. CRESPO ◽  
GERFRIED DEUTSCH ◽  
MARIO MARTÍNEZ-AZORÍN ◽  
...  

In the course of a taxonomic revision of the genus Massonia Houtt., Massonia citrina M.Pinter, Deutsch, U.Müll.- Doblies & D.Müll.-Doblies, a new species of this genus from the Western Cape Province (South Africa), is here described. This species is similar to members of the M. depressa group, but it can be easily distinguished by its yellow filaments and style and the longer perigone-filament tube. A complete morphological description of the new species is presented.


2010 ◽  
Vol 67 (3) ◽  
pp. 425-430 ◽  
Author(s):  
C. N. Cupido

A new species, Roella uncinata Cupido (Campanulaceae), from Western Cape, South Africa, is described and illustrated, and its known distribution mapped. A proposed conservation assessment is provided, and its diagnostic characters and affinity are discussed.


ZooKeys ◽  
2020 ◽  
Vol 945 ◽  
pp. 99-127
Author(s):  
Mikhail B. Potapov ◽  
Charlene Janion-Scheepers ◽  
Louis Deharveng

Species of the genera of the Cryptopygus complex in South Africa are morphologically revised. Five new species of the genus Cryptopygus Willem, 1902 s. s. and one new species of the genus Isotominella Delamare Deboutteville, 1948 are described. Cryptopygus abulbussp. nov. and C. bulbussp. nov. have only one chaeta on the anterior side of dens and no chaetae on the anterior side of manubrium, the latter species being characterized by the presence of a bulb at apex of antennae; C. inflatussp. nov. shows a rare combination of eight ocelli on each side of the head with a tridentate mucro; C. longisensillussp. nov. has five long s-chaetae on the fifth abdominal segment; C. postantennalissp. nov. is unique by having a very long and slender postantennal organ with strong inner denticles; Isotominella laterochaetasp. nov. is the second member of the genus and differs from the type species by many more anterior chaetae on the manubrium and the presence of chaetae on ventral side of metathorax. The genera are discussed and a key to all species of the Cryptopygus complex recorded in South Africa is given. The focus is on the Western Cape Province where the complex is the most diverse and sampling more complete than in other provinces of South Africa.


Phytotaxa ◽  
2020 ◽  
Vol 430 (1) ◽  
pp. 25-32
Author(s):  
ANIFAT O. BELLO ◽  
JAMES S. BOATWRIGHT ◽  
MICHELLE VAN DER BANK ◽  
ANTHONY R. MAGEE

During taxonomic studies of the southern African genus Pteronia, four new species, P. armatifolia, P. decurrens, P. flava and P. glandulosa were uncovered from the Northern and Western Cape provinces of South Africa. We formally describe these four new species here and provide detailed descriptions, diagnostic characters, geographical distributions, as well as ecological information for each of the species.


Zootaxa ◽  
2021 ◽  
Vol 5005 (2) ◽  
pp. 175-188
Author(s):  
JIŘÍ MORAVEC ◽  
RONALD HUBER

A new species of the genus Odontocheila Laporte de Castelnau, 1834 is described from Venezuela as Odontocheila paraexcisipenis sp. nov. It is classified as a further species of the large O. cajennensis species-group and described subsequent to the recently published revision of the genus (Moravec (2018). Illustrations of the habitus, diagnostic characters and variability of the new species and distinguishing characters of similar species are presented in colour photographs. Revised key to species of the O. cajennensis species-group is presented with references to descriptions and illustrations of other species of the species-group in the above-cited taxonomic revision of the genus. An essential map of distribution is also given.


Zootaxa ◽  
2012 ◽  
Vol 3268 (1) ◽  
pp. 55 ◽  
Author(s):  
PAWEŁ JAŁOSZYŃSKI

A new species of the endemic South African genus Stenomastigus Leleup (Staphylinidae, Scydmaeninae, Mastigini), S.pseudofranzi sp. n. is described. Because some morphological structures of the new species highly resemble those of S.franzi Leleup, description of the latter species is supplemented with previously unknown details of the aedeagus (includingthe copulatory piece). Habitus, aedeagi, modified fore legs of males and other diagnostic characters of both species are illustrated.


Zootaxa ◽  
2019 ◽  
Vol 4582 (1) ◽  
pp. 1
Author(s):  
ZINGISILE MBO ◽  
CHARLES R. HADDAD

The genus Drassodella Hewitt, 1916 is one of four Afrotropical genera of Gallieniellidae, and is presently represented by seven species, all endemic to South Africa. The type material of six of the described species was studied and they are redescribed from both sexes: D. melana Tucker, 1923, D. quinquelabecula Tucker, 1923, D. salisburyi Hewitt, 1916, D. septemmaculata (Strand, 1909), D. tenebrosa Lawrence, 1938 and D. vasivulva Tucker, 1923. Of these, the males of D. melana, D. tenebrosa and D. vasivulva are described for the first time. Recent field work yielded additional females of D. purcelli Tucker, 1923 from the vicinity of the type locality, and this sex is redescribed; the male remains unknown. A further 12 new species are recognized: D. amatola sp. nov. (♀ ♂), D. aurostriata sp. nov. (♀ ♂), D. baviaans sp. nov. (♂), D. flava sp. nov. (♀ ♂), D. guttata sp. nov. (♀ ♂), D. lotzi sp. nov. (♀), D. maculata sp. nov. (♀), D. montana sp. nov. (♀ ♂), D. tolkieni sp. nov. (♀ ♂), D. trilineata sp. nov. (♀), D. transversa sp. nov. (♀ ♂) and D. venda sp. nov. (♀ ♂). Based on the genitalic structures, there appear to be two distinct species groups. The D. melana species group, which includes D. melana, D. tenebrosa and eight new species mainly distributed in eastern and northern South Africa, is characterised by very conservative genitalic morphology in both sexes. The D. salisburyi species group, with considerable variation in the structure of the copulatory organs and distributed in the southern half of South Africa, includes the remaining nine species, of which four are new. Although D. tenebrosa represents an intermediate between the two groups, with palpal morphology more typical of the D. melana species group and epigynal morphology typical of the D. salisburyi group, it is placed in the former species group based on its distribution in eastern South Africa. The biology, habitat preferences and biogeography of Drassodella are briefly discussed. 


Zootaxa ◽  
2003 ◽  
Vol 371 (1) ◽  
pp. 1 ◽  
Author(s):  
TOUFIEK SAMAAI ◽  
MARK J. GIBBONS ◽  
MICHELLE KELLY ◽  
MIKE DAVIES-COLEMAN

A recent major revision of the Family Latrunculiidae (Demospongiae: Poecilosclerida) recognised four valid genera; Latrunculia du Bocage, Sceptrella Schmidt, Strongylodesma Lévi, and Tsitsikamma Samaai & Kelly, from South Africa. The major diagnostic characters of the Family Latrunculiidae are the possession of discate acanthose microrhabd microscleres called acanthodiscorhabds, or more traditionally, “chessman” spicules, that form a dense palisade in the outer ectosome, a tangential layer of styles or anisostrongyle megascleres below this, and a wispy choanosomal skeleton of the same spicules. The sponge surface almost always has areolate porefields and short fistular oscules. This paper reports new Latrunculiidae from western and southeastern South Africa, including a redescription of Latrunculia biformis (Kirkpatrick). Four key characters, including microsclere ornamentation, spicule dimensions, colouration in life, and surface aquiferous features, define three new species of Latrunculia (L. lunaviridis sp. nov., L. microacanthoxea sp. nov., and L. bellae sp. nov.), two new species of Strongylodesma (S. algoaensis sp. nov. and S. tsitsikammaensis sp. nov.), and two new species of Tsitsikamma (T. pedunculata sp. nov. and T. scurra sp. nov.).


Zootaxa ◽  
2019 ◽  
Vol 4647 (1) ◽  
pp. 231-240 ◽  
Author(s):  
WOJCIECH NIEDBAŁA ◽  
ELIZABETH A. HUGO-COETZEE ◽  
SERGEY G. ERMILOV

Notophthiracarus (Oribatida, Phthiracaridae) is a large genus of ptyctimous oribatid mites with species in Australasian, Ethiopian, Neotropical, Oriental and Subantarctic regions, mostly in tropical and subtropical areas. Herein, we describe two new species from the Western Cape of South Africa: Notophthiracarus sidorchukae Niedbała sp. nov. and Notophthiracarus spathulatus Niedbała sp. nov. Each is represented by adult specimens collected from soil in a coastal forest in the Kaaimansgat estuary, the only documented locality. These two bring the known South African fauna of Notophthiracarus to 31 species, all of which are either indigenous or endemic. A review of distributional data shows that within South Africa most species have been recorded from southern, eastern and northeastern parts, and are most prevalent near the coast, where woody vegetation dominates. 


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