Morphological and molecular studies of a new species of the root mealybug genus Ripersiella Tinsley (Hemiptera: Coccoidea: Rhizoecidae) from greenhouses in The Netherlands and a first incursion of the American root mealybug Rhizoecus keysensis Hambleton in Europe

2015 ◽  
Vol 158 (1) ◽  
pp. 1-19
Author(s):  
Maurice Jansen ◽  
Marcel Westenberg

Ripersiella emarai is described from Ficus cyathistipula Warburg, Ficus lyrata Warburg and Dieffenbachia sp. from Dutch greenhouses. The immature stages are described based on microscopic features and a key to the stages is provided for their separation. This species description is actuated by the necessity to distinguish the new species from the root mealybug Ripersiella hibisci (Kawai & Takagi), which is occasionally imported and shares host plants with the new species. An identification key to adults of the Dutch greenhouse species and species intercepted during import inspections based on microscopic morphological characters is given. A key to distinguish the nymphal stages is provided and keys are given to the identification of first, second and third instar nymphs of Ripersiella multiporifera Jansen, R. hibisci (Kawai & Takagi) and R. emarai Jansen. Rhizoecus advenoides Takagi & Kawai, 1971 is found to be a junior synonym of Rh. amorphophalli Betrem, 1940.

2002 ◽  
Vol 33 (3) ◽  
pp. 291-310 ◽  
Author(s):  
Diana M. Percy

AbstractDistribution patterns between continental and continental-island sister taxa are compared for some legume-feeding psyllids (Arytaininae, Psylloidea) and their host plants (Genisteae, Leguminosae). The host plant genera Adenocarpus, Chamaecytisus, Retama and Teline are characterized by distribution disjunctions, which sometimes match the disjunctions in the associated psyllids. Sister taxa pairs of Retama- and Teline-feeding psyllids from the continent and Macaronesian islands exhibit a similar geographic disjunction as their host plants, but this pattern is not found in Adenocarpus- or Chamaecytisus-feeding psyllids and their hosts. In addition, three closely related continental psyllids reflect the distribution of their Adenocarpus hosts in the montane regions of Morocco and Andalusia, but are not related to other Adenocarpus-feeding species. These examples suggest that among the Genisteae-feeding psyllids, shared distribution patterns with their hosts are localized rather than characteristic of the group as a whole. Six new species of psyllid, which feed on legume shrubs in the Genisteae, and are endemic to the Iberian Peninsula and Morocco, are described and illustrated. These species are in two taxonomically complex arytainine genera, Arytainilla and Livilla. Immature stages provide additional morphological characters useful for resolving taxonomic relationships within the Arytaininae, and the 5th instar nymphs of several species are described and illustrated. Genistoid-feeding psyllids are not known from all genera in the Genisteae but this may be due to incomplete sampling of rarer genistoid legumes. The majority of psyllids newly described here are narrow range endemics in either Andalusia or Morocco; one species occurs in both Andalusia and Morocco, and one species is more widespread in the Iberian Peninsula.


1997 ◽  
Vol 28 (4) ◽  
pp. 391-402 ◽  
Author(s):  
M. Alma Solis

AbstractMichaelshaffera gen. n. is comprised of two species, M. maidoa (Schaus), new combination, the type species, described from French Guiana, and a new species, M. beckeri, here described from South America. The assignment of taxa to the Pyraloidea is based primarily on characters of the tympanal organs and immature stages. Michaelshaffera lacks a tympanal organ and the immatures are unknown. The rationale for the placement of this genus in the Pyraloidea and lower hierarchical ranks is discussed based on other morphological characters.


2015 ◽  
Vol 26 (3) ◽  
pp. 156-164
Author(s):  
Yanpeng Cai ◽  
Tengteng Liu ◽  
Houhun Li

Hyloconis longivalvata Li, sp. n. is described based on adults, larvae and pupae from Tianjin and Shanxi, northern China. Campylotropis macrocarpa (Bunge) and Lespedeza bicolor Turcz. (Fabaceae) are reported as its host plants. The larval head and pupal features of the genus Hyloconis are described for the first time. Morphological characters of adult and immature stages as well as leafmines of the new species are illustrated.


Telopea ◽  
2020 ◽  
Vol 23 ◽  
pp. 221-225
Author(s):  
Wendy Mustaqim ◽  
◽  
Yee Low ◽  
Charlie Heatubun

Syzygium oransbariense Mustaqim, Y.W.Low & Heatubun (Myrtaceae) is here formally described. This species is found in the lowlands on the eastern flank of the Arfak Mountains, Bird’s Head Peninsula, western New Guinea. The species is similar to Syzygium longipes (Diels) Merr. & L.M.Perry but differs based on a set of diagnostic morphological characters. Species description, distribution, a preliminary conservation status assessment, and notes on the new species are presented here.


2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.


2020 ◽  
Vol 29 (1) ◽  
pp. 138-154
Author(s):  
R.V. Smirnov ◽  
O.V. Zaitseva ◽  
A.A. Vedenin

A new species of Pogonophora obtained from one station at a depth of 25 m from near the Dikson Island in the Kara Sea is described. Galathealinum karaense sp. nov. is one of the largest pogonophorans, the first known representative of the rare genus Galathealinum Kirkegaard, 1956 in the Eurasian part of the Arctic Ocean and a highly unusual finding for the desalted shallow of the Yenisey Gulf. Several characters occurring in the new species are rare or unique among the congeners: under-developed, hardly discernible frills on the tube segments, extremely thin felted fibres in the external layer of the tube, and very faintly separated papillae in the anterior part of the trunk. Morphological characters useful in distinguishing species within the genus Galathealinum are defined and summarised in a table. Diagnosis of the genus Galathealinum is emended and supplemented by new characters. Additionally, three taxonomic keys are provided to the species of Galathealinum and to the known species of the Arctic pogonophorans using either animals or their empty tubes only, with the brief zoogeographical information on each Arctic species.


2011 ◽  
Vol 20 (1) ◽  
pp. 85-95 ◽  
Author(s):  
S.A. Belokobylskij ◽  
T.S. Kostromina

Two braconid genera from the subfamily Alysiinae, Lodbrokia Hedqvist, 1962 and Asyntactus Marshall, 1898, are recorded in the fauna of Russia and in the Asian continent for the first time. A new species Lodbrokia uralica sp. nov. is described from the Urals, and a key to species of this genus is provided. Redescriptions of the female and male of Asyntactus rhogaleus Marshall, 1898 with information about the level of variability of its morphological characters are given. Asyntactus sigalphoides Marshall, 1898 is synonymised with A. rhogaleus Marshall, 1898 (syn. nov.).


2019 ◽  
Vol 27 (4) ◽  
pp. 238-247
Author(s):  
Massoud Ranjbar ◽  
Narges Rahchamani

Scrophularia dianatnejadii Ranjbar & Rahchamani, a new species from Tehran Province in northern Iran, is described and illustrated. It is closely related to S. amplexicaulis Benth. and shares with it some diagnostic morphological characters such as habit, plant indument, phyllotaxy, and corolla shape and color. Both species are placed in Scrophularia L. sect. Mimulopsis Boiss. Macro- and micromorphological characters of the two are examined and compared. Pollen morphology of these species is investigated using SEM. Detailed descriptions, illustrations, distribution maps, and conservation status of both species are provided.


Author(s):  
Pradya Somboon ◽  
Thanari Phanitchakun ◽  
Jassada Saingamsook ◽  
Rinzin Namgay ◽  
Ralph E Harbach

Abstract Culex longitubus Somboon, Namgay & Harbach is described as a new species of the Mimeticus Subgroup of the subgenus Culex. The larva is most similar to the larva of Cx. tianpingensis Chen from China, but is distinguished by the length of the siphon and the anal papillae, the form of the comb scales and pecten spines, and the development of setae 7-P, 13-T, 1-X, and 4-X. The adults have wing markings and male genitalia similar to those of species of the Mimeticus Complex. Phylogenetic analysis of COI sequences revealed that the new species is closely related to Cx. murrelli Lien of the Mimulus Complex. The immature stages of the new species were found in stagnant pools and marshes at high altitudes in several districts of Bhutan.


Zootaxa ◽  
2021 ◽  
Vol 4927 (2) ◽  
pp. 197-208
Author(s):  
FRANCESCO BALLARIN ◽  
TAKESHI YAMASAKI ◽  
YONG-CHAO SU

Representatives of some poorly known spider species collected in the rainforest litter of the Orchid Island (Taiwan) are illustrated and discussed here. A new species, Brignoliella tao sp. nov. (Fam. Tetrablemmidae), endemic to Orchid Island, is described based on both sexes. The previously unknown female of Theridiosoma triumphale Zhao & Li, 2012 (Fam. Theridiosomatidae), is described for the first time. Zoma taiwanica (Zhang, Zhu & Tso 2006) comb. nov., from the same family, is illustrated and its transfer from the genus Theridiosoma O. Pickard-Cambridge, 1879 to Zoma Saaristo, 1996 is proposed on the basis of morphological characters. Habitus and genitalia of the endemic species Gongylidioides angustus Tu & Li, 2006 (Fam. Linyphiidae) are also illustrated. 


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