scholarly journals <i>Ankumia</i> van Veen, 1932 <i>(nomen dubium):</i> pathological moult retention in the Cytherellidae (Platycopida: Ostracoda)

2003 ◽  
Vol 22 (1) ◽  
pp. 85-99 ◽  
Author(s):  
Peter J. Jones

Abstract. The monotypic genus Ankumia is associated with the rich cytherellid fauna described by van Veen (1932) from the Upper Cretaceous (late Maastrichtian) rocks of South Limburg, The Netherlands. The type species (A. bosqueti van Veen, 1932) is redescribed because the genus possesses the enigmatic combination of cytherellid (posterior sex-dimorphism and R/L overlap) and eridostracan (several concentric bands) characters. As no holotype was designated, the redescription is based on a detailed SEM examination of the syntypes in the Bonnema/van Veen composite collection. Most syntypes show that the outer layer of coarse, concentric, rings, which form an oblique cone, are retained moults of a species of cytherellid. The point of retention in the early instars is along the posteroventral margin, contrary to the dorsal position of successive lamellae in eridostracan Cryptophyllus. Other syntypes possess the typical lateral outline of adult species of Cytherellidae. The ontogeny of each individual of retained moults (‘Ankumia’) has a nine-instar pattern, with a growth increment between successive moults about 1.15, slightly less than that (about 1.20) observed by Shaver (1953) for Cytherella bullata. The name Ankumia is abandonned, and a new combination proposed for the previous type species, Platella bosqueti (van Veen, 1932).

Zootaxa ◽  
2009 ◽  
Vol 2052 (1) ◽  
pp. 1-31 ◽  
Author(s):  
CHRISTIANA KLINGENBERG ◽  
C. ROBERTO F. BRANDÃO

Based on the morphology of workers, gynes and males, we revise the taxonomy of nominal taxa traditionally included by authors in the fungus-growing ant genus Mycetophylax. Our results indicate that Mycetophylax Emery (Myrmicocrypta brittoni Wheeler, 1907, type species, by designation of Emery, 1913; junior synonym of Cyphomyrmex conformis Mayr, 1884 by Kempf, 1962) includes M. conformis, M. simplex (Emery, 1888), and M. morschi (Emery, 1888) new combination (formerly in Cyphomyrmex), with several synonymies. Mycetophylax bruchi (Santschi, 1916) does not belong to the same genus and is diagnosed, in addition to other characters, by a psammophore arising at the anterior margin of the clypeus. For this species we are resurrecting from synonymy Paramycetophylax Kusnezov, 1956 (Mycetophylax bruchi as type species, by original designation, with M. cristulatus as its new synonym). Myrmicocrypta emeryi Forel, 1907 is the only attine in which females lack the median clypeal seta and have the antennal insertion areas very much enlarged and anteriorly produced, with the psammophore setae arising from the middle of the clypeus and not at its anterior margin as in Paramycetophylax. Notwithstanding its inclusion in Mycetophylax by recent authors, it is here recognized as belonging to a hitherto undescribed, thus far monotypic genus, Kalathomyrmex new genus (Myrmicocrypta emeryi as its type species, here designated). We redescribe workers, gynes and males of all species in the


1977 ◽  
Vol 8 (3) ◽  
pp. 177-190 ◽  
Author(s):  
A. Smetana

AbstractThe systematic position of the monotypic genus Beeria Hatch 1957 within the subfamily Staphylininae is discussed. The genus combines characters of both the tribe Staphylinini and Quediini, however the morphology of the prothorax seems to justify its assignment to the tribe Quediini. A detailed description of the genus, together with the presently known data about its distribution and ecology are given. The type species of Beeria (punctata Hatch 1957) is identical with Philonthus nematocerus Casey 1915, which results in the following new combination: Beeria nematocera (Casey 1915) with punctata Hatch 1957 as a junior synonym. The characters distinguishing the tribes Staphylinini and Quediini are discussed in detail. A key to holarctic genera of the tribe Quediini is given. The subtribe Triacri established by Bernhauer (1931) within the tribe Quediini is identical with the subtribe Xanthopygi within the tribe Staphylinini. The genera Algon Sharp, Brachycamonthus Bernh. and Rientis Sharp are removed from the tribe Quediini and reassigned to the tribe Staphylinini, subtribe Xanthopygi. The genus Rientis Sharp, 1874 is identical with Securipalpus Schubert, 1908, which becomes a junior synonym of Rientis.


Zootaxa ◽  
2009 ◽  
Vol 2220 (1) ◽  
pp. 67
Author(s):  
VALENTINA I. GONTAR

The recent unintentional creation of a bryozoan secondary homonym requires a change of name for the species affected. Gontar (2009) established the new monotypic genus Paulina (order Cyclostomata), with type species Paulina taylori, for a small, ramifying uniserial species of Oncousoeciidae from the upper shelf of the Pacific coast of the middle Kurile Islands, Russia. Paulina Gontar, 2009 is preoccupied by Paulina Grigelis, 1977 (Protozoa, Foraminifera). Paulella nom. nov. (gender feminine) is here proposed as a replacement genus, resulting in the new combination Paulella taylori (Gontar, 2009).


2021 ◽  
pp. 3-13
Author(s):  
FELIX SCHLAGINTWEIT ◽  
KOOROSH RASHIDI

In his monograph on Mesozoic-Cenozoic Larger Benthic Foraminifera from the area of Middle East and south-western Asia, Henson (1948) erected the genus Dictyconella for more or less "compressed-conical" dictyoconids including D. complanata (type-species) and D. minima. Both are however, structurally completely different, e.g. aligned (in the latter) versus alternating structural elements (in the former), and cannot either belong to the same genus or the same subfamily (Dictyoconinae versus Dictyorbitolininae). Therefore, the new genus Gusicella is erected with the type-species Dictyoconella minima, resulting in the new combination Gusicella minima. Gusicella represents the only taxon of the Dictyorbitolininae in the Upper Cretaceous Global Community Maturation Cycle of Larger Benthic Foraminifera (here: conical agglutinated). Due to the revision, Dictyoconella is described as a monospecific genus and an assumed Maastrichtian newcomer which, like Gusicella, became extinct shortly afterwards, namely at the K-Pg boundary mass-extinction event. Both taxa appear to be restricted to the former Arabian Plate of the southern Neotethyan margin. The new data provided are based on material from the Maastrichtian Tarbur Formation of southwestern Iran (Zagros Zone).


2020 ◽  
Vol 30 ◽  
pp. 77-81
Author(s):  
Fernando C. Penco ◽  
Roman V. Yakovlev ◽  
Artem E. Naydenov

The article describes a new genus, Miacorella Penco, Yakovlev & Naydenov gen. n. (Lepidoptera, Cossidae, Chilecomadiinae) (type species, by monotypy – Miacora leucocraspedontis Zukowsky, 1954). The neotype M. leucocraspedontis is allocated, the new combination Miacorella leucocraspedontis (Zukowsky, 1954), comb. n., is established. The species is distributed in Peru, Bolivia and Argentina. The distributional map is given. The article has 16 illustrations.


1984 ◽  
Vol 62 (4) ◽  
pp. 705-708 ◽  
Author(s):  
Keith N. Egger

The monotypic genus Pyropyxis is described based upon the type species, Peziza rubra Peck. Pyropyxis is distinguished by deeply cupulate, sessile, pink to reddish-orange apothecia. The ectal excipulum is composed of thick-walled cells forming a textura angularis tissue with the outer layer of cells occasionally giving rise to hyaline, moniliform hairs. The hymenium contains two types of paraphyses; most are hyaline, but some are filled with orange, crystalline pigments. The ascospores are eguttulate when fully mature but contain two small polar guttules when immature. A Dichobotrys anamorph is produced in axenic culture.


2020 ◽  
Vol 298 (3) ◽  
pp. 311-317
Author(s):  
Torrey Nyborg ◽  
Alessandro Garassino ◽  
James W. Haggart ◽  
Raymond Graham

The monotypic genus Preclarocarcinus Schweitzer, Feldmann, Ćosović, Ross & Waugh, 2009, was described based upon the species P. parvus Schweitzer, Feldmann, Ćosović, Ross & Waugh, 2009 from the Upper Cretaceous (Campanian) of Vancouver Island. Preclarocarci- nus parvus was based on a single specimen with the front only partially preserved. Preclarocarcinus parvus was based on a single specimen with the front only partially preserved. The recent discovery, from the lower Campanian, of two complete specimens of the species which preserve the frontal region allows a re- evaluation of the type species in order to better establish its generic characters. Finally, we revise the age of the type locality of P. parvus, the genotype species, from Campanian to late Santonian. The genus Preclarocarcinus thus has an overall age range from late Santonian to early Campanian.


Zootaxa ◽  
2019 ◽  
Vol 4613 (2) ◽  
pp. 327
Author(s):  
LAURENCE A. MOUND ◽  
DESLEY J. TREE

The genus Xylaplothrips is re-diagnosed, 11 species are listed as appropriately included in this genus of which three are new combinations from Haplothrips (X. acaciae; X. collyerae; X. gahniae). A further six species are listed as incertae sedis within Xylaplothrips and a key is provided to the four species of this genus known from Australia including X. anarsius sp.n. The genus Mesandrothrips is recalled from synonymy with Xylaplothrips, and a list is provided of 20 appropriately included species of which 14 are new combinations from Xylaplothrips (M. caliginosus; M. clavipes; M. darci; M. dubius; M. emineus; M. flavitibia; M. flavus; M. inquilinus; M. montanus; M. pictipes; M. pusillus; M. reedi; M. subterraneus; M. tener), and one is a new combination from Haplothrips (M. inquinatus). A key is provided to 10 species of this genus known from Australia, including three species transferred from Haplothrips, together with M. austrosteensia sp.n., M. googongi sp.n., M. kurandae sp.n., M. lamingtoni sp.n. and M. oleariae sp.n. The type species, M. inquilinus, is widespread across Southeast Asia as an invader of thrips galls, and Haplothrips darci Girault based on a single female from Queensland is considered closely related. 


Zootaxa ◽  
2017 ◽  
Vol 4238 (1) ◽  
pp. 58 ◽  
Author(s):  
ATSUSHI MOCHIZUKI ◽  
CHARLES S. HENRY ◽  
PETER DUELLI

The small lacewing genus Apertochrysa comprises species from Africa, Asia and Australia. All lack a tignum, but otherwise resemble distantly related genera. We show that Apertochrysa does not form a monophyletic clade, based on analyses of molecular sequence data and morphological traits such as the presence and shape of the male gonapsis, wing venation, and larval setae. Apertochrysa kichijoi forms a clade with Eremochrysa, Suarius and Chrysemosa, whereas A. albolineatoides belongs to a clade that includes Cunctochrysa. Apertochrysa albolineatoides should become a new combination as Cunctochrysa albolineatoides, while A. kichijoi will have to be transferred to a new genus. The Australian A. edwardsi, the African A. eurydera and the type species of the genus Apertochrysa, A. umbrosa, join the large Pseudomallada group. Relationships of A. umbrosa are less certain, because for it we could amplify only one of the three nuclear genes used in the overall analysis. However, in all morphological traits tested, that species strongly resembles A. edwardsi and A. eurydera and thus is very likely just another exceptional Pseudomallada lacking a tignum. The fate of the genus name Apertochrysa depends on additional molecular and morphological analyses of A. umbrosa. 


1978 ◽  
Vol 9 (1) ◽  
pp. 75-76
Author(s):  
Leif Lyneborg

AbstractNeotherevella n.gen. is proposed as a replacement for Neothereva Kröber sensu Lyneborg (1976). Neothereva Kröber, 1912, is placed in new synonymy with Thereva Latreille, 1796, as the consequence of an overlooked designation of a type-species for Neothereva Kröber, 1912, by Kröber (1935). Neotherevella is fully described. Five specific names are placed in new combination with Neotherevella, which is known from Namibia, Mauritania, Algeria, Sudan, Egypt, Israel, Uzbechistan and Mongolia. It is demonstrated that two species described in combination with Neothereva by Zaitzev (1970) do not belong to Neotherevella.


Sign in / Sign up

Export Citation Format

Share Document