Cladistic biogeography of marine water striders (Insecta, Hemiptera) in the Indo-Pacific

1991 ◽  
Vol 4 (1) ◽  
pp. 151 ◽  
Author(s):  
Andersen N Moller

More than 120 species of marine water striders (Hemiptera, Gerromorpha), representing three families and eight genera, are distributed throughout the lndo-Pacific region. They live in marine habitats such as mangroves, intertidal coral reef flats and the sea surface near coral and rocky coasts. Five species of sea skaters, Halobates (Gerridae), have colonised the surface of the open ocean. Adult marine water striders are wingless but may disperse along coasts, chains of islands and possibly across wider stretches of open sea. Although some species of coral bugs, Halovelia (Veliidae) and Halobates are widespread, most species of marine water striders have rather restricted distributions. Cladistic hypotheses are now available for the genera Halovelia, Xenobates (Veliidae) and Halobates. Based upon distributional data for about 110 species, a number of areas of endemism can be delimited within the Indo-Pacific region. The results of component analyses of taxon-area cladograms for several monophyletic species-groups of marine water striders are presented. The faunas of northern New Guinea, the Bismarck and Solomon Islands (Papuasia) are closely related and show much greater affinity with Maluku, Sulawesi and the Philippines than with the fauna of northern Australia. Relationships between the faunas of Papuasia + Sulawesi + the Philippines and those of Borneo + Jawa + Malaya are relatively weak. Marine water striders endemic to islands of the western Pacific show relationships among themselves and with Australia. Most marine water striders from the Indian Ocean (East Africa, Madagascar, Mauritius, Seychelles and Maldives) can be derived from the Indian-South-east Asian fauna. Composite faunas of marine water striders (either of different age or origin) are found in New Guinea, New Caledonia, Fiji Islands, the Philippines, tropical Australia and East Africa. The biogeography of marine water striders does not support the traditional division of the Indo- Pacific into the Ethiopian, Oriental and Australian regions. The distributional patterns are more compatible with a set of hierarchical relationships between more restricted areas of endemism.

2016 ◽  
Vol 48 (1) ◽  
pp. 13-52 ◽  
Author(s):  
Arve ELVEBAKK ◽  
Soon Gyu HONG ◽  
Chae Haeng PARK ◽  
Eli Helene ROBERTSEN ◽  
Per Magnus JØRGENSEN

AbstractReports of ‘Psoroma sphinctrinum’ from Palaeotropical areas are shown to represent instead species of the genus Gibbosporina, which is described here as new to science. This genus is superficially similar to tripartite, austral Pannaria species, such as the species now referred to as Pannaria sphinctrina (Mont.) Tuck. ex Hue. A phylogram based on an analysis of the nuclear large subunit rDNA (LSU) locus shows that Gibbosporina is instead a clade in a Pannariaceae branch referred to as the ‘Physma group’, a most unexpected addition to Pannariaceae dealt with by several previous studies. Genera assigned to this group have very contrasting general appearances. However, this diverse group shares distinctly ring-like thalline excipular margins; strongly amyloid internal ascus structures; well-developed perispores which have irregular gibbae and/or nodulose or acuminate apical extensions, but not verrucae; lacks TLC-detectable secondary compounds and have tropical distributions. Gibbosporina is the only tripartite genus in the group, with distinct, nodulose, placodioid, mini-fruticose to mini-foliose cephalodia with a high diversity of Nostoc cyanobionts. The cyanomorphs can apparently exist independently in some cases, although the apothecia on such cephalodia on a specimen from Réunion were unexpectedly found to belong to the chloromorph. The genus and related genera forming the ‘Physma group’ are probably evolutionarily old, and their weak affinity to the remaining part of Pannariaceae, concentrated in the Southern Hemisphere, is discussed. The genus includes 13 known species, and the generitype is Gibbosporina boninensis from the Japanese Ogasawara Islands, originally described as Psoroma boninense and recombined here. The following 12 species are described here as new to science, seven of them with molecular support in an LSU and ITS-based phylogram: Gibbosporina acuminata (Australia, the Philippines), G. amphorella (New Caledonia), G. bifrons (Malaysia, New Caledonia, the Philippines, Solomon Islands), G. didyma (Mauritius, Réunion), G. elixii (Australia), G. leptospora (Australia, Papua New Guinea), G. nitida (Australia, Papua New Guinea, the Philippines), G. mascarena (Mauritius, Réunion, Sri Lanka), G. papillospora (the Philippines), G. phyllidiata (Solomon Islands), G. sphaerospora (Australia, Indonesia, Malaysia, the Philippines, Samoa, and with Psoroma sphinctrinum var. endoxanthellum as a new synonym), and G. thamnophora (Australia and the Philippines). Except for the phyllidiate G. phyllidiata and for G. thamnophora which has cephalodia adapted for vegetative propagation, the species are all primarily fertile. A key for determining the species is provided.


Phytotaxa ◽  
2021 ◽  
Vol 479 (1) ◽  
pp. 71-82
Author(s):  
HUI SHANG ◽  
ZHEN-LONG LIANG ◽  
LI-BING ZHANG

A taxonomic revision of Didymochlaena (Didymochlaenaceae) from Asia and the Pacific region is conducted based on morphological and molecular evidence. Seven species are recognized, of which four are described as new and a new status is raised to a species from a variety. These four new species include D. fijiensis from Fiji, D. philippensis from the Philippines, D. punctata from Indonesia, Malaysia, and Thailand, and D. solomonensis from the Solomon Islands. The new status is D. oceanica from Papua New Guinea. Six of the seven species have all been erroneously treated as D. truncatula by earlier pteridologists. A key to the species is provided and descriptions of all species are given.


Author(s):  

Abstract A new distribution map is provided for Dysdercus sidae Montr. (D. insular is Stål) (Hemipt., Pyrrhocoridae). Host Plants: Cotton, kapok, Hibiscus spp. Information is given on the geographical distribution in AUSTRALASIA AND PACIFIC ISLANDS, Australia, Fiji, Loyalty Islands, New Caledonia, New Hebrides, Niue, Papua & New Guinea, Samoa, Solomon Islands, Tonga, Wallis Islands, Irian Jaya.


Itinerario ◽  
2000 ◽  
Vol 24 (3-4) ◽  
pp. 173-191 ◽  
Author(s):  
Robert Aldrich

At the end of the Second World War, the islands of Polynesia, Melanesia and Micronesia were all under foreign control. The Netherlands retained West New Guinea even while control of the rest of the Dutch East Indies slipped away, while on the other side of the South Pacific, Chile held Easter Island. Pitcairn, the Gilbert and Ellice Islands, Fiji and the Solomon Islands comprised Britain's Oceanic empire, in addition to informal overlordship of Tonga. France claimed New Caledonia, the French Establishments in Oceania (soon renamed French Polynesia) and Wallis and Futuna. The New Hebrides remained an Anglo-French condominium; Britain, Australia and New Zealand jointly administered Nauru. The United States' territories included older possessions – the Hawaiian islands, American Samoa and Guam – and the former Japanese colonies of the Northern Marianas, Mar-shall Islands and Caroline Islands administered as a United Nations trust territory. Australia controlled Papua and New Guinea (PNG), as well as islands in the Torres Strait and Norfolk Island; New Zealand had Western Samoa, the Cook Islands, Niue and Tokelau. No island group in Oceania, other than New Zealand, was independent.


Insects ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 710
Author(s):  
Ladislav Bocak ◽  
Michal Motyka ◽  
Dominik Kusy ◽  
Renata Bilkova

We reviewed the species-level classification of Metriorrhynchina net-winged beetles to make the group accessible for further studies. Altogether, 876 valid species are listed in a checklist along with known synonyms, combinations, and distribution data. The compilation of geographic distribution showed that Metriorrhynchina is distributed mainly in the Australian region with very high diversity in the islands at the northern edge of the Australian craton, i.e., in the Moluccas and New Guinea (54 and 423 spp. respectively). The neighboring northern part of the Australian continent houses a majority of known Australian species (112 spp.) and the diversity of net-winged beetles gradually decreases to the south (43 spp.). The fauna of Sulawesi is highly endemic at the generic level (4 of 10 genera, 67 of 84 spp.). Less Metriorrhynchina occur in the Solomon Islands and Oceania (in total 22 spp.). The Oriental Metriorrhynchina fauna consists of a few genera and a limited number of species, and most of these are known from the Philippines (51 of 94 Oriental spp.). We identified a high species level turn-over between all neighboring landmasses. The genus-level endemism is high in Sulawesi (4 genera) and New Guinea (11 genera), but only a single genus is endemic to Australia. During the compilation of the checklist, we identified some homonyms, and we propose the following replacement names and a new synonym: Metriorrhynchus pseudobasalis, nom. nov. for M. basalis Lea, 1921 nec M. basalis Bourgeois, 1911; Metriorrhynchus pseudofunestus, nom. nov. for M. funestus Lea, 1921 nec M. funestus (Guérin-Méneville, 1838), Trichalus pseudoternatensis, nom. nov. for T. ternatensis Kleine, 1930 nec T. ternatensis Bourgeois, 1900, Procautires subparallelus, nom. nov. for P. parallelus (Pic, 1926) nec P. parallelus (Bourgeois, 1883), and Cautires pseudocorporaali, nom. nov. for C. corporaali (Pic, 1921: 12), (formerly Odontocerus and Cladophorus) nec C. corporaali (Pic, 1921) (formerly Bulenides, later Cautires). Diatrichalus biroi Kleine, 1943, syn. nov. is proposed as a junior subjective synonym of D. subarcuatithorax (Pic, 1926). Altogether, 161 new combinations are proposed, and 47 species earlier placed in Xylobanus Waterhouse, 1879 transferred from Cautirina to Metriorrhynchina incertae sedis. The study clarifies the taxonomy of Metriorrhynchini and should serve as a restarting point for further taxonomic, evolutionary, and biogeographic studies.


2020 ◽  
Author(s):  
Kayvan Etebari ◽  
James Hereward ◽  
Apenisa Sailo ◽  
Emeline M Ahoafi ◽  
Robert Tautua ◽  
...  

Incursions of the Coconut rhinoceros beetle (CRB), Oryctes rhinoceros, have been detected in several countries of the south-west Pacific in recent years, resulting in an expansion of the pest's geographic range. It has been suggested that this resurgence is related to an O. rhinoceros mitochondrial lineage (previously referred to as the CRB-G biotype) that is reported to show reduced susceptibility to the well-established classical biocontrol agent, Oryctes rhinoceros nudivirus (OrNV). We investigated O. rhinoceros population genetics and the OrNV status of adult specimens collected in the Philippines and seven different South Pacific island countries (Fiji, New Caledonia, Papua New Guinea (PNG), Samoa, Solomon Islands, Tonga, and Vanuatu). Based on the presence of single nucleotide polymorphisms (snps) in the mitochondrial Cytochrome C Oxidase subunit I (CoxI) gene, we found three major mitochondrial lineages (CRB-G, a PNG lineage (CRB-PNG) and the South Pacific lineage (CRB-S)) across the region. Haplotype diversity varied considerably between and within countries. The O. rhinoceros population in most countries was monotypic and all individuals tested belonged to a single mitochondrial lineage (Fiji, CRB-S; Tonga, CRB-S; Vanuatu, CRB-PNG; PNG (Kimbe), CRB-PNG; New Caledonia CRB-G; Philippines, CRB-G). However, in Samoa we detected CRB-S and CRB-PNG and in Solomon Islands we detected all three haplotype groups. Genotyping-by-Sequencing (GBS) methods were used to genotype 10,000 snps from 230 insects across the Pacific and showed genetic differentiation in the O. rhinoceros nuclear genome among different geographical populations. The GBS data also provided evidence for gene flow and admixture between different haplotypes in Solomon Islands. Therefore, contrary to earlier reports, CRB-G is not solely responsible for damage to the coconut palms reported since the pest was first recorded in Solomon Islands in 2015. We also PCR-screened a fragment of OrNV from 260 insects and detected an extremely high prevalence of viral infection in all three haplotypes in the region. We conclude that the haplotype groups CRB-G, CRB-S, and PNG, do not represent biotypes, subspecies, or cryptic species, but simply represent different invasions of O. rhinoceros across the Pacific. This has important implications for management, especially biological control, of Coconut rhinoceros beetle in the region.


Author(s):  
M. B. Ellis

Abstract A description is provided for Drechslera incurvata. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Cocos nucifera. DISEASE: A leaf spot of young coconut (Cocos nucifera). The spots are at first small, oval, brown; enlarging and becoming pale buff in the centre with a broad, dark brown margin. In severe attacks the edges of leaves become extensively necrotic. GEOGRAPHICAL DISTRIBUTION: Apart from records from Jamaica and Seychelles the fungus has been reported only from S.E. Asia, Australasia and Oceania: British Solomon Islands, Fiji, French Polynesia, Malaysia (W., Sabah, Sarawak), New Caledonia, New Hebrides, Papua-New Guinea, Philippines, Sri Lanka, Vietnam and Thailand. TRANSMISSION: Presumably air dispersed.


1996 ◽  
Vol 27 (3) ◽  
pp. 279-346 ◽  
Author(s):  
Dan A. Polhemus ◽  
John T. Polhemus

AbstractThe small waterstriders of the subfamily Trepobatinae have radiated extensively on New Guinea and in surrounding archipelagos. All of the marine forms of the subfamily are found in this region, with the exception of one monotypic genus occurring on brackish water in the eastern tropical Pacific. The present study, the fourth in a series of reports dealing with Melanesian Trepobatinae, covers these regional marine taxa. The tribe Stenobatini, proposed in Part 1 of this series to hold the genera Stenobates Esaki, type-genus, plus Rheumatometroides Hungerford and Matsuda, and Stenobatopsis gen. n. (as undescribed genus 2), is revised, two new genera are proposed, and keys to genera and species are provided, followed by synonymies, diagnoses and discussion of the constituent genera. The following new taxa are proposed within the Stenobatini: Pseudohalobates gen. n., monobasic, type-species S. inobonto sp. n. from Indonesia (Celebes, Moluccas, Talaud Archipelago, Biak and Yapen islands, and Vogelkop Peninsula of Irian Jaya), and the Philippines (southern Mindanao); Stenobatopsis gen. n., monobasic, type-species S. stygius sp. n. from Halmahera; Thetibates gen. n., type-species Rheumatometroides serena Lansbury, from northern Papua New Guinea and the Solomon Islands; Rheumatometroides kikori sp. n. from the Kikori delta of southern Papua New Guinea; R. insularis papar n. ssp. from Sabah, north Borneo; R. sele sp. n. from the Vogelkop Peninsula of Irian Jaya; R. wabon sp. n. from Biak Island; Stenobates fakfak sp. n. from the Vogelkop Peninsula of Irian Jaya; S. kamojo sp. n. from Biak Island, Salawati Island, Yapen Island, and the Vogelkop Peninsula of Irian Jaya; S. kasim sp. n. from Salawati Island; S. labuha sp. n. from Bacan and Halmahera; S. langoban sp. n. from Palawan; S. sangihe sp. n. from the Sangihe Archipelago; and S. zamboanga sp. n. from Mindanao. Other nomenclatural changes: Rheumatometroides carpentaria (Polhemus & Polhemus), comb. n.; Rheumatometroides insularis insularis (J. Polhemus & Cheng), comb. n.; Stenobates makraitos (Chen & Nieser) comb. n.; Thetibates matawa (Lansbury), comb. n. [ = Rheumatometroides aqaaqa (Lansbury), syn. n.]; Thetibates serena (Lansbury), comb. n. Habitat and distributional data are given for these taxa, accompanied by keys, figures of key characters and distribution maps.


REINWARDTIA ◽  
2020 ◽  
Vol 19 (1) ◽  
pp. 1-25
Author(s):  
Ruth Kiew

KIEW, R. 2020. Towards a Flora of New Guinea: Oleaceae. Part 1. Jasminum, Ligustrum, Myxopyrum and Olea. Reinwardtia 19(1): 1‒25. ‒‒ Oleaceae in New Guinea is represented by five genera and about 32 species, namely Chionanthus (about 16 species), Jasminum (10 species), Ligustrum (3 species), Myxopyrum (2 species) and Olea (1 species). A key to genera as well as descriptions of and keys to species of Jasminum, Ligustrum, Myxopyrum and Olea are provided. Of the three Ligustrum species, L. glomeratum is widespread throughout Malesia, L. novoguineense is endemic and L. parvifolium Kiew is a new endemic species. Six species of Jasminum are endemic (J. domatiigerum, J. gilgianum, J. magnificum, J. papuasicum, J. pipolyi and J. rupestre). Jasminum turneri just reaches the northern tip of Australia; of the two species from the Pacific Islands J. simplicifolium subsp. australiense just reaches SE Papua New Guinea and J. didymum, a coastal species, reaches into Malesia as far north as E Java; J. elongatum is widespread from Asia to Australia. Neither Myxopyrum species is endemic: M. nervosum subsp. nervosum extends from Peninsular Malaysia to Indonesian New Guinea, and M. ovatum from the Philippines to the Admiralty Islands. The sole species of Olea, O. paniculata, stretches from Java to Australia and New Caledonia. 


1988 ◽  
Vol 2 (6) ◽  
pp. 737 ◽  
Author(s):  
AS Menke

Diagnostic characters of the Australian genus Arpactophilus are reviewed and augmented. Spilornena is demonstrated to be very similar morphologically, and the distinctions between the two genera are discussed. The known distribution of Arpactophilus now includes New Guinea, New Britain, New Caledonia, the Solomon Islands, and Fiji. Three new species of the genus are described from New Guinea: A. preposterus, A. rhinocerus and A. papua. The maxillary palpi of Arpactophilus, Spilomena, Xysrna and Microstigrnus are 5-segmented, not 6- as previously assumed. These four genera are removed from the subtribe Stigmina, and placed in a new subtribe, the Spilomenina.


Sign in / Sign up

Export Citation Format

Share Document