Two new species of Micropeplus from the Pliocene of western Alaska with remarks on the evolution of Micropeplinae (Coleoptera: Staphylinidae)

1970 ◽  
Vol 48 (4) ◽  
pp. 779-788 ◽  
Author(s):  
John V. Matthews Jr.
Keyword(s):  
British Columbia ◽  
New Species ◽  
Coniferous Forest ◽  
Morphological Evidence ◽  
Evolutionary Sequence ◽  
Plant Fossils ◽  
Two New Species ◽  
Other Information ◽  
Species Groups ◽  
Insect Fossils

A radiometrically dated Pliocene fossil locality in western Alaska contains specimens representing two new species of insects: Micropeplus hoogendorni n. sp. and Micropeplus hopkinsi n. sp. (Coleoptera: Staphylinidae, Micropeplinae). Fossils of the extant Micropeplinae species Kalissus nitidus LeConte and Micropeplus tesserula Curtis occur with the fossils of the newly described species. Other insect fossils and plant fossils from the locality suggest that M. hoogendorni and M. hopkinsi lived in a coniferous forest somewhat similar to those in present-day British Columbia or Southeastern Alaska.The holotype and paratypes of Micropeplus hopkinsi provide morphological evidence for the evolutionary sequence of elylral puncture development in the genus Micropeplus. This and other information is used to construct a provisional phylogeny for the subfamily Micropeplinae. The probable derivation of the species groups of Micropeplus is discussed.

Two new species of stalked crinoids from the northeastern Pacific in the genera Gephyrocrinus and Ptilocrinus (Echinodermata, Crinoidea, Hyocrinidae). Effects of ontogeny and variability on hyocrinid taxonomy

Zootaxa ◽  
2011 ◽  
Vol 2825 (1) ◽  
pp. 1 ◽  
Author(s):  
MICHEL ROUX ◽  
PHILIP LAMBERT
Keyword(s):  
British Columbia ◽  
New Species ◽  
Single Species ◽  
Depth Range ◽  
Evolutionary Trend ◽  
Exceptional Collection ◽  
The Family ◽  
Two New Species ◽  
Northeastern Pacific ◽  
Stalked Crinoids

Two new species of deep-sea stalked crinoids belonging to the family Hyocrinidae were collected in the northeastern Pacific. The descriptions contain detailed information on character variations and ontogeny. The five specimens of Gephyrocrinus messingi n. sp. lived at depths ranging from 1,777 m to 2,110 m off British Columbia and California. This new species is the first record of the genus Gephyrocrinus in the Pacific Ocean, which was previously known from only a single species, G. grimaldii, from the northeastern Atlantic at the same depth range. The two species illustrate opposing phenotypes within the same genus. Fifty-eight specimens of the second new species, Ptilocrinus clarki n. sp., were dredged off British Columbia close to the type-locality of P. pinnatus, the type species of the genus Ptilocrinus, but at shallower depths ranging from 1,178 to 1,986 m. This exceptional collection provides significant data on intraspecific variation in the main morphological characters, especially arm pattern. The ontogeny of stalk articulations and the main traits of adoral plate differentiation are described in detail. A complementary investigation on P. pinnatus was conducted using specimens collected by the “Albatross” expedition at a depth of 2,906 m. Despite similarities in external morphology, tegmen and cover plates, the two ptilocrinid species display significant differences in pinnule architecture, aboral cup and stalk articulations. From comparison with Gephyrocrinus messingi n. sp. and Ptilocrinus clarki n. sp., G. grimaldii and P. pinnatus are interpreted as the result of heterochronic development by paedomorphy after ecological or geographic isolation. Pinnule architecture in the two new species suggests first steps in an evolutionary trend toward a rigid box which protects gonad inflation in the proximal part of the pinnule. These new data on Ptilocrinus and Gephyrocrinus create problems in the current taxonomy of the family Hyocrinidae. The main derived characters, especially in pinnule and arm pattern, are used to propose new hypotheses for hyocrinid phylogeny.

scholarly journals A new micropolydesmoid millipede of the genus Eutrichodesmus Silvestri, 1910 from Cambodia, with a key to species in mainland Southeast Asia (Diplopoda, Polydesmida, Haplodesmidae)

ZooKeys ◽  
2020 ◽  
Vol 996 ◽  
pp. 59-91
Author(s):  
Ruttapon Srisonchai ◽  
Natdanai Likhitrakarn ◽  
Chirasak Sutcharit ◽  
Ekgachai Jeratthitikul ◽  
Warut Siriwut ◽  
...  
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Mating Behaviour ◽  
Morphological Evidence ◽  
Distribution Map ◽  
Key To Species ◽  
Current Distributions ◽  
Species Groups ◽  
First Time ◽  
Mainland Southeast Asia

The micropolydesmoid millipede family Haplodesmidae is here recorded from Cambodia for the first time through the discovery of the first, new species of the genus Eutrichodesmus Silvestri, 1910: E. cambodiensissp. nov. This new species is described from two limestone habitats in Kampot Province, based on abundant material. It is easily distinguished from all related congeners by the following combination of characters: body greyish-brown; limbus roundly lobulate; solenomere partially divided from acropodite by a digitiform lobe, but without hairpad. Brief remarks on the previously-proposed “pecularis-group” are provided and a second group, the “demangei-group”, is established and discussed on the basis of morphological evidence, updating the number of recognised species groups of Eutrichodesmus to two. Detailed morphological illustrations, photographs and a distribution map, as well as remarks on its habitat and mating behaviour of the new species are presented. Furthermore, the current distributions of all 55 presently-known species of Eutrichodesmus are provided and a key to all 23 species that occur in mainland Southeast Asia is given.

Two new species of Neotropical Leptomorphus Curtis (Diptera: Mycetophilidae)

Zootaxa ◽  
2021 ◽  
Vol 4985 (3) ◽  
Author(s):  
SCOTT J. FITZGERALD
Keyword(s):  
New Species ◽  
Sister Species ◽  
Northern Mexico ◽  
Two New Species ◽  
Southwestern Usa ◽  
Species Groups

Two new species of Leptomorphus Curtis, L. guatemalensis sp. n. and L. juxtafurcatus sp. n., are described from Guatemala, figured, and compared with congeners. The new species belong to the clade including the “furcatus” and “walkeri” species-groups as defined by Borkent & Wheeler (2012). L. guatemalensis sp. n. can be recognized by the gonocoxite bulbous and crescent-shaped with the apex asetose and spatula-like, but remains without a clear sister-species. Based on the structure of the male terminalia, particularly the presence of submedian, pointed lobes on sternite nine, L. juxtafurcatus sp. n. is suggested to be the sister-species to L. furcatus Borkent from the southwestern USA and northern Mexico; these species can be distinguished by the form of the gonocoxites.

Two new species of Australian Eutarsopolipus (Acariformes: Podapolipidae) from Nurus medius (Coleoptera: Carabidae)

Zootaxa ◽  
2019 ◽  
Vol 4647 (1) ◽  
pp. 134-153 ◽  
Author(s):  
OWEN D. SEEMAN
Keyword(s):  
New Species ◽  
Species Group ◽  
Carabid Beetle ◽  
Two New Species ◽  
Group A ◽  
Species Groups

Eutarsopolipus burwelli sp. nov. and E. echinatus sp. nov. (Acari: Podapolipidae) are described from Nurus medius Darlington, 1961 (Coleoptera: Carabidae), a large burrowing carabid beetle found in the rainforests of coastal central Queensland, Australia. Eutarsopolipus burwelli belongs to the ochoai species group, which is herein refined, and E. echinatus is placed tentatively in the pterostichi species group. A revised key to the species groups of Eutarsopolipus is provided. The synhospitalic species of Eutarsopolipus are reviewed and synhospitality within the genus is discussed. 

Early Permian colonial rugose corals from the Stikine River area, British Columbia, Canada

1989 ◽  
Vol 63 (2) ◽  
pp. 158-181 ◽  
Author(s):  
Calvin H. Stevens ◽  
Barbara Rycerski
Keyword(s):  
British Columbia ◽  
New Species ◽  
Lower Permian ◽  
Early Permian ◽  
Klamath Mountains ◽  
Coral Fauna ◽  
Rugose Corals ◽  
Two New Species ◽  
Three New Species ◽  
One New Species

Twenty-two species of Early Permian colonial rugose corals belonging to 12 genera from 10 locations in the Stikine River area in northwestern British Columbia, Canada, are described. These include three new species ofFomichevella(F. magna, F. southeri, F. bamberi); two species ofHeintzella; five species ofHeritschioides, of which three are new (H. bagleyae, H. garvinae, H. hoganae); two new species ofParaheritschioides(P. jennyi, P. wickenae); one new species questionably assigned toKleopatrina(K.?stikinensis); two new species ofPetalaxis(P. guaspariniae, P. neriae); and two new species ofLytvophyllum(L.?mongeri, L. wersoni). In addition, five new species assigned to five new genera are here namedEastonastraea complexa, Fedorowskiella simplex, Pararachnastraea lewisi, Stikineastraea thomasi, andWilsonastraea rigbyi.These corals occur in rocks forming part of the Stikine terrane, the largest tectonostratigraphic unit in western Canada. This coral fauna shows a very close affinity with that of the Lower Permian McCloud Limestone of the eastern Klamath Mountains of northern California, and there is some similarity to the Coyote Butte fauna of central Oregon. Several species compare most closely with species from Spitsbergen, but there are few similarities with any cratonal North American faunas and none with Tethyan faunas.

Revision in part of the genus Nebrioporus Régimbart, 1906, with emphasis on the N. laeviventris-group (Coleoptera: Dytiscidae)

Zootaxa ◽  
2009 ◽  
Vol 2040 (1) ◽  
pp. 1-111 ◽  
Author(s):  
MARIO TOLEDO
Keyword(s):  
New Species ◽  
Distributional Analysis ◽  
Character Analysis ◽  
Diagnostic Characters ◽  
Identification Keys ◽  
Male Characters ◽  
New Synonyms ◽  
Two New Species ◽  
Species Groups ◽  
Previous Identification

The genus Nebrioporus Régimbart, 1906 is reviewed and partially revised. The historical subgeneric divisions have not been subscribed to here because they fail to reflect the natural grouping within the genus. Instead, Nebrioporus has been divided into eight species-groups recognised and described with character analysis and keys for their identification. The N. laeviventris-group, comprising 4 subgroups and 13 species, has been revised. The N. depressus-group, the most speciose within the genus, is redefined and dealt with in detail with keys for the identification of the species and morphological illustrations accompanying the taxonomic discussion for selected species. The N. sansii-group, as here defined, is also keyed and illustrated and the species N. lynesi (J. Balfour-Browne, 1947) is revised and inserted into this group. Revisional notes are provided also for the following species: Nebrioporus canariensis (Bedel, 1881), N. capensis (Omer-Cooper, 1953), N. dubius (Aubé, 1838b), N. kiliani (Peyerimhoff, 1929), N. kilimandjarensis (Régimbart, 1906), N. seriatus (Sharp, 1882), N. simplicipes (Sharp, 1884), N. solivagus (Omer-Cooper, 1965), N. vagrans (Omer-Cooper, 1953). All revised species are provided with a short redescription, illustration of diagnostic characters and distributional analysis. For several species new distributional records are given. Illustrations of habitus and male characters are provided also for species not discussed in the text. A comprehensive checklist of the genus Nebrioporus is given, with synonyms. Two new species are described: N. amicorum sp.n. from Crete and N. sagartus sp.n. from Iran, both belonging to the N. laeviventris-group, the former described from material previously determined as Nebrioporus stearinus (Kolenati, 1854). Nebrioporus seriatus (Sharp, 1882) is found to be a member of the abyssinicus-group and inserted into previous identification keys. Nebrioporus suavis (Sharp, 1882) is here considered as a western subspecies of N. stearinus (new status as Nebrioporus stearinus suavis (Sharp)). New synonyms: Zimmermannius Guignot, 1941 = Nebrioporus Régimbart, 1906; Hydroporus walkeri Branden, 1885 = Hydroporus crotchi Preudhomme de Borre, 1871; Hydroporus variegatus Aubé, 1838a = Hydroporus stearinus Kolenati, 1845; Deronectes turca Seidlitz, 1887 = Hydroporus stearinus Kolenati, 1845; Potamonectes sulphuricola Zaitzev, 1951 = Hydroporus airumlus Kolenati, 1845. Lectotypes are designated for: Hydroporus clarkii Wollaston, 1862; Deronectes simplicipes Sharp, 1884; Deronectes anchoralis Sharp, 1884; Hydroporus kiliani Peyerimhoff, 1929; Deronectes seriatus Sharp, 1882; Deronectes arabicus Sharp, 1882; Deronectes islamiticus Sharp, 1882; Deronectes princeps Sharp, 1882; Hydroporus stearinus Kolenati, 1845; Deronectes suavis Sharp, 1882; Hydroporus crotchi Preudhomme de Borre, 1871; Hydroporus insignis Klug, 1833; Hydroporus semiclusus Walker, 1871; Deronectes hostilis Sharp, 1884; and Hydroporus melanogrammus Régimbart, 1899.

Molecular phylogeny of the weevil genus Kyklioacalles Stüben, with descriptions of a new subgenus Glaberacalles and two new species (Curculionidae: Cryptorhynchinae)

Zootaxa ◽  
2010 ◽  
Vol 2662 (1) ◽  
pp. 28 ◽  
Author(s):  
PETER E. STÜBEN ◽  
JONAS J. ASTRIN
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Bayesian Analysis ◽  
Morphological Differentiation ◽  
Molecular Data ◽  
Mitochondrial Genes ◽  
Morphological Evidence ◽  
New Subgenus ◽  
Western Palearctic ◽  
Two New Species

A molecular phylogeny of the western Palearctic weevil genus Kyklioacalles Stüben, 1999 is presented, combining two mitochondrial genes (CO1 and 16S) in a Bayesian analysis. Based on molecular data, the validity of the subspecies Kyklioacalles punctaticollis punctaticollis (Lucas, 1849) and Kyklioacalles punctaticollis meteoricus (Meyer, 1909) is discussed and the morphological differentiation of the endophalli and known distributions of both subspecies are verified. Glaberacalles subg. n. (formerly Kyklioacalles punctaticollis-group) and two new species are described, Kyklioacalles atlasicus sp.n. from Morocco and Kyklioacalles plantapilosus sp.n. from Spain. Kyklioacalles berberi (Stüben, 2005), comb. n. and Kyklioacalles olcesei (Tournier, 1873) comb. n. are transferred from Acalles Schoenherr. The molecular results further advocate a transfer of Onyxacalles pyrenaeus (Boheman, 1844) to Kyklioacalles; however this is not supported by morphological evidence. Kyklioacalles almadensis Stüben, 2004 syn. n. (Spain) is synonymized with Kyklioacalles bupleuri Stüben, 2004 (Tunisia). A catalogue of all 40 (sub-)species of Kyklioacalles is given and a key of the species of the subgenus Glaberacalles is presented.

On the taxonomy of the genus Agrisius Walker, 1855, with descriptions of two new species from Vietnam and Laos (Lepidoptera, Erebidae, Arctiinae)

Zootaxa ◽  
2018 ◽  
Vol 4459 (1) ◽  
pp. 128 ◽  
Author(s):  
ANTON V. VOLYNKIN ◽  
VLADIMIR V. DUBATOLOV ◽  
YASUNORI KISHIDA
Keyword(s):  
New Species ◽  
Male Genitalia ◽  
Species Group ◽  
Female Genitalia ◽  
Two New Species ◽  
Species Groups ◽  
First Time

Two new species of the genus Agrisius Walker, 1855, A. orhanti Volynkin, Dubatolov & Kishida, sp. n. and A. leloii Volynkin, Dubatolov & Kishida, sp. n. are described from South Laos and Vietnam respectively. A. orhanti sp. n. belongs to the A. japonicus Leech, 1889 species-group. Whereas, the male genitalia structure of A. leloii sp. n. is intermediate between those of the A. japonicus and the A. guttivitta Walker, 1855 species-groups, therefore, it is assigned to a separated species-group (the A. leloii species-group). Agrisius dubatolovi Orhant, 2012 is downgraded as a subspecies of A. japonicus: Agrisius japonicus dubatolovi Orhant, 2012, stat. nov. Female genitalia of species of the A. japonicus and most of the A. guttivitta species-groups are illustrated for the first time. 

Two new species of Eupholus Boisduval (Coleoptera, Curculionidae, Entiminae), with observations on coloured cuticular exudates in weevils

Zootaxa ◽  
2010 ◽  
Vol 2338 (1) ◽  
pp. 23
Author(s):  
ALEXANDER RIEDEL
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
New Guinea ◽  
Colour Pattern ◽  
Yellow Colour ◽  
Male And Female ◽  
Two New Species ◽  
Species Groups ◽  
Colour Patterns ◽  
And Function

Two new species of Eupholus Boisduval from Papua New Guinea are described as new: Eupholus mimicus sp. n. and E. sedlaceki sp. n.. A key to the Eupholus species with yellow colour patterns is provided. E. sedlaceki is closely related to E. euphrosyne Porion but differs in coloration. Male and female terminalia of E. euphrosyne are illustrated for comparison. E. mimicus is superficially very similar to E. euphrosyne, but its yellow colour pattern is composed of scales whereas in the latter it is formed by loose particles. These two species belong to different species groups, and the conspicuous colour patterns have evidently evolved convergently. The occurrence and function of extracuticular pigments among species of Eupholini is discussed.

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