A new endemic psyllid genus, Stevekenia gen. nov. (Hemiptera: Psylloidea, Triozidae), from the Hawaiian Islands with two new and rare species on threatened host plants in the endemic genus Nothocestrum (Solanaceae)

Zootaxa ◽  
2017 ◽  
Vol 4286 (3) ◽  
pp. 370 ◽  
Author(s):  
DIANA M. PERCY

A new endemic psyllid genus from the Hawaiian Islands, Stevekenia gen. nov., is described. Two new species, both single island endemics, feed on host plants in the endemic genus Nothocestrum (Solanaceae). Stevekenia nothocestri sp. nov. is found on Nothocestrum longifolium on the island of Oahu and Stevekenia aiea sp. nov. is found on N. peltatum on the island of Kauai. The host plants are montane rainforest species and both are on the IUCN Red List of Threatened Species. In particular, N. peltatum, which is endemic to the island of Kauai, is considered critically endangered, and therefore a similarly endangered status for these host-specific insects is likely. Only a few specimens of each Stevekenia species have been found, suggesting occurrence at low abundance. The host plants survive either as isolated individuals or small fragmented populations, which may already constitute less than the required critical host plant density for the long term survival of this psyllid genus. Unique morphological characters distinguish Stevekenia from other Hawaiian genera, and the placement of this genus within Triozidae is discussed. Mitochondrial DNA barcodes for the new species are provided. 

2019 ◽  
pp. 54-78
Author(s):  
Yaroslav Tsytsiura

The article presents the results of a long-term study of the features of the phytocenology of agrophytocenoses of oil radish using different methods for assessing their condition and studying the tactics of the plant vitality strategy. A comprehensive assessment was made of the effect of changes in row spacing, seeding rates and fertilizer rates on the formation of various plant morphotypes, the variability of morphological characters and the general characteristics of plant viability. Three idiotypes of the plant oil radish were identified in a vertical study of agrophytocenosis, on the basis of which a detailed analysis of the variability of each group and a statistical assessment of the reliability of its existence were carried out. The features of the morphological integration of each tier are analyzed and its impact on the formation of the overall field productivity is evaluated. Based on the modular and vitality grouping, the effectiveness and feasibility of combining various options for plant density and fertilizer in the range of 30-90 kg of active substance per 1 ha were evaluated. Conclusions are drawn about the desired model of agrophytocenosis of oil radish based on the characteristics of its vital tactics and the goals of its growing. Grouping was carried out according to a variety of morphological traits of plants in the population and the possibilities of applying the basic patterns of phytocenology in their application to radish oilseed plants were evaluated. Through the use of regression analysis, the influence of climatic conditions on the formation of various morphological types of plants and the nature of the relationship of plants of oil radish in cenoses of various densities against the background of various fertilizer options has been evaluated. The main promising areas for further research on the peculiarities of creating highly productive and highly adaptable agrophytocenoses of oil radish have been outlined.


Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 111-128
Author(s):  
LUCIANO DIOTTI ◽  
ROBERTO CALDARA ◽  
IVO TOŠEVSKI

Two new species of the weevil genus Rhamphus from Italy are herein described: R. bavierai n. sp. (Sicily) and R. hampsicora n. sp. (Sardinia). Both are morphologically and from a molecular perspective close to R. oxyacanthae (Marsham, 1802) and R. monzinii Pesarini & Diotti, 2012. Aside from a diagnostic description and a synoptic key, distribution data and notes on the host plants of the four species are reported. Whereas R. monzinii can be distinguished by several morphological characters, the other three species are morphologically very similar to each other and separable only by the combination of a few subtle characters. On the contrary, a preliminary molecular study revealed substantial divergences of mtCOI from 6.2 to 14.9% between the species, confirming the importance of an integrative taxonomy.  


Zootaxa ◽  
2012 ◽  
Vol 3391 (1) ◽  
pp. 1 ◽  
Author(s):  
JAN STIPALA ◽  
NICOLA LUTZMANN ◽  
PATRICK K. MALONZA ◽  
PAUL WILKINSON ◽  
BRENDAN GODLEY ◽  
...  

We describe a new species of chameleon, Trioceros kinangopensis sp. nov., from Kinangop Peak in the Aberdare moun-tains, central highlands of Kenya. The proposed new species is morphologically and genetically distinct from other mem-ber of the bitaeniatus-group. It is morphologically most similar to T. schubotzi but differs in the lack of sexual sizedimorphism, smaller-sized females, smoother, less angular canthus rostrales, smaller scales on the temporal region and abright orange gular crest in males. Mitochondrial DNA indicates that the proposed new taxon is a distinct lineage that isclosely related to T. nyirit and T. schubotzi. The distribution of T. kinangopensis sp. nov. appears to be restricted to the afroalpine zone in vicintiy of Kinangop Peak and fires may pose a serious threat to the long-term survival of this species.


Phytotaxa ◽  
2020 ◽  
Vol 477 (2) ◽  
pp. 253-260
Author(s):  
ZEKI AYTAC ◽  
PHILIPPE RABAUTE ◽  
PIERRE COULOT

Onobrychis silvanensis sp. nov., is described from Silvan, Diyarbakır province, in southeastern Anatolia, Turkey. The new species is closely related to O. galegifolia and O. radiata. The white corolla feature of O. silvanensis is uncommon in Turkish Onobrychis species and is otherwise known only in O. haussknecthii and O. hypargyrea. In addition to the diagnosis and taxonomic description, morphological characters of both flowering and fruiting O. silvanensis plants are presented. Distribution maps for O. silvanensis, O. galegifolia and O. radiata in Turkey are also provided. Although currently Data Deficient by IUCN status criteria, we anticipate O. silvanensis constitutes a candidate for Endangered status.


Phytotaxa ◽  
2020 ◽  
Vol 454 (4) ◽  
pp. 277-284
Author(s):  
FABRÍCIO MOREIRA FERREIRA ◽  
CASSIANO A. DORNELES WELKER ◽  
LYNN G. CLARK ◽  
REYJANE P. OLIVEIRA

Eremitis limae, a new species of Parianinae (Poaceae, Bambusoideae, Olyreae) endemic to the coastal forests of Bahia, Brazil, is described and illustrated. It is morphologically similar to species of Eremitis with characteristically narrow leaves: E. linearifolia, E. parviflora, and E. riodocensis. We discuss the morphological characters distinguishing the new species from its close relatives, and we also present illustrations, photos, and a distribution map. Eremitis limae is classified as Endangered (EN) according to the IUCN Red List categories and criteria.


Oryx ◽  
2014 ◽  
Vol 49 (3) ◽  
pp. 529-534 ◽  
Author(s):  
Chunfa Zhou ◽  
Jiliang Xu ◽  
Zhengwang Zhang

AbstractThe current status and distribution of the Vulnerable Reeves's pheasant Syrmaticus reevesii, endemic to central China, is poorly known. To obtain updated information on its status we selected 89 candidate sites in six provinces and one municipality in central China and conducted interviews and field surveys from April 2011 to April 2012. Interviews demonstrated the pheasant has disappeared from 46% of the surveyed sites. Our results also revealed a population decline at 46 sites, including protected areas, although population densities in protected areas were higher than those in non-protected areas. Eighty-three, 26 and 20% of the surveyed sites had evidence of poaching, habitat loss and use of poison, respectively, which were the three major threats to this species. To ensure the long-term survival of Reeves's pheasant in China, protection and management need to be enforced in both protected and non-protected areas. We recommend that this species should be upgraded to a national first-level protected species in China and recategorized as Endangered on the IUCN Red List.


Oryx ◽  
2016 ◽  
Vol 52 (1) ◽  
pp. 134-136 ◽  
Author(s):  
Yin Yang ◽  
Ying-Ping Tian ◽  
Chen-Xiang He ◽  
Zhipang Huang ◽  
Shao-Hua Dong ◽  
...  

AbstractThe Myanmar snub-nosed monkey Rhinopithecus strykeri was discovered in 2010 on the western slopes of the Gaoligong Mountains in the Irrawaddy River basin in Myanmar and subsequently in the same river basin in China, in 2011. Based on 2 years of surveying the remote and little disturbed forest of the Gaoligong Mountains National Nature Reserve in China, with outline transect sampling and infrared camera monitoring, a breeding group comprising > 70 individuals was found on the eastern slopes of the Gaoligong Mountains in the Salween River Basin. Given the Critically Endangered status of this primate (a total of < 950 individuals are estimated to remain in the wild), efforts to protect the relatively undisturbed habitat of this newly discovered population and to prevent hunting are essential for the long-term survival of this species.


Zootaxa ◽  
2005 ◽  
Vol 898 (1) ◽  
pp. 1 ◽  
Author(s):  
Michael G. Pogue ◽  
C. E. Harp

Based on morphological characters and host plant use, species related to Schinia chrysellus (Grote) are revised. Schinia alencis (Harvey) is considered a valid species, revised status. Schinia chrysel- loides, new species is closely allied with S. chrysellus, and Schinia rufocostulata, new species is related to S. ciliata Smith. Localities of collected adult moths and their asteraceous host plants are compared and illustrated with distribution maps. Adults and male and female genitalia are illustrated for each species.


Zootaxa ◽  
2017 ◽  
Vol 4257 (1) ◽  
pp. 1 ◽  
Author(s):  
JONAS R. STONIS ◽  
ARŪNAS DIŠKUS ◽  
ANDRIUS REMEIKIS ◽  
OLE KARSHOLT ◽  
NIXON CUMBICUS TORRES

We review forty-five species of Nepticulidae (Lepidoptera) based on an analysis of samples collected in the central Andean region of Peru and Bolivia. Thirteen of these species are new to science, and are named and described here: Stigmella paracosma Remeikis & Stonis, sp. nov., S. expressa Remeikis & Stonis, sp. nov., S. acalyphae Diškus & Stonis, sp. nov., S. lepida Diškus & Stonis, sp. nov., S. misera Diškus & Stonis, sp. nov., S. inca Diškus & Stonis, sp. nov., S. eiffeli Diškus & Stonis, sp. nov., S. arequipica Remeikis & Stonis, sp. nov., S. coronaria Diškus & Stonis, sp. nov., S. azulella Diškus & Stonis, sp. nov., S. sparsella Diškus & Stonis, sp. nov., Manoneura forcipis Diškus & Stonis, sp. nov., and Acalyptris murex Diškus & Stonis, sp. nov. Some of the central Andean species are recorded here as leaf-miners on Euphorbiaceae (Acalypha), Fabaceae (Collaea), Rosaceae (Polylepis), Malvaceae (Sida), Calceolariaceae (Calceolaria), Lamiaceae (Clinopodium), and Asteraceae (Ageratina and Trixis). We create eleven new species groups based on morphological characters designated in Stigmella and one in Acalyptris. A pictorial key to the species groups and distribution maps are provided. All new species are illustrated with 150 photographs and drawings of the adults and genitalia, and, where known and/or available, photographs of host-plants and leaf-mines. 


Zootaxa ◽  
2019 ◽  
Vol 4584 (1) ◽  
pp. 1 ◽  
Author(s):  
SEVERYN V. KORNEYEV ◽  
VALERY A. KORNEYEV

Species of the genus Tephritis usually have the wing pattern with dark rays on veins R4+5 and M connected to the preapical dark spot or to each other (often called the “apical fork). Some species, however, have a solid apical crossband (Korneyev, 2013), whereas others have an isolated pair of apical spots. Specimens with the latter morphological character occasionally occur in many species with typical wing patterns, but in this article we focus on the species that normally have it. They occur mostly in the Palaearctic Region, except T. candidipennis Foote, 1960 from North America. A total of twenty species are recognized in this complex, including three new species and two new subspecies: Tephritis arsenii S. Korneyev, 2015, T. bardanae (Schrank 1803), T. conyzifoliae Merz 1992, T. crepidis Hendel 1927, T. dilacerata (Loew 1846), T. dilacerata kaszabi new subspecies, T. formosa (Loew 1844), T. ghissarica new species, T. hendeliana Hering 1944, T. hyoscyami (Linnaeus 1758), T. kyrghyzica new species, T. kogardtauica Hering 1944, T. kovalevi Korneyev & Kameneva 1990, T. kovalevi kumana new subspecies; T. postica (Loew 1844), T. stictica Loew 1862, T. theryi Séguy 1930, T. tridentata S. Korneyev & Mohamadzade-Namin 2013, T. truncata (Loew 1844), T. valida (Loew 1862), T. youngiana new species, and T. zernyi Hendel 1927. Most of the species are keyed, redescribed and illustrated based on extensive material from the Palaearctic Region. Lectotypes of T. dilacerata, T. formosa, T. hendeliana, T. truncata, T. valida, T. posis, T. heiseri, T. procera and a neotype for T. postica are designated. Known host plants of this complex belong to the tribes Anthemideae, Cardueae, Cichorieae, Inuleae, and Senecioneae (Asteraceae); preliminary comparison of the morphological characters (other than the wing pattern) with the distribution among host plants shows that the flies apparently do not form a monophyletic group, belonging to several different lineages, which also include other species with the typical “forked wing pattern. New distribution records and host plants are reported.        The following synonymies are established: Musca hyoscyami Linnaeus 1758 = Tephritis heiseri Frauenfeld 1865 new synonym; Trypeta postica Loew 1844 = Tephritis posis Hering 1939 new synonym. 


Sign in / Sign up

Export Citation Format

Share Document