Tuesday, September 16, 2014

Discoveries of the week

Spasskia brevicarinata
The genus Spasskia Belokobylskij, 1989 (Hymenoptera: Braconidae: Helconinae) is reported for the first time from China. Two species, namely Spasskia brevicarinata Yan et Chen sp. n. and Spasskia indica Singh, Belokobylskij et Chauhan, 2005 are described and illustrated. A key to the species of this genus is updated to include the new species.

The new species is rather small - adults are less than one centimeter long. It is similar to a previously described species called Spasskia indica, but the ridges on some of its body segments are different. In fact, the species epithet brevicarinata refers to a short ridge on its first tergite, as "brevi" is Latin for short and "carinata" is Latin for ridge.

no DNA barcode

A new species of Neoplecostomus is described from the rio Doce basin representing the first species of this genus in the basin. The new species is distinguished from its congeners by having enlarged, fleshy folds between dentaries, two or three series of developed papillae anterior to premaxillary teeth and a adipose-fin membrane present, and by lacking enlarged odontodes along snout lateral margins in mature males, a well-developed dorsal-fin spinelet wider than dorsal-fin spine base, lower number of lateral-line figs and developed membrane on the dorsal portion of the first, second and third pelvic-fin branched rays. Additionally, we present a brief discussion of biogeographic scenarios that may explain the distribution of the new species in the rio Doce basin. We suggested that the ancestral lineage of the new species reached the rio Doce from the upper portions of rio Paraná drainages about 3.5 Mya (95% HPD: 1.6–5.5) indicating a colonization route of the N. doceensis ancestral lineage from the south end of Serra do Espinhaço, probably as a result of headwater capture processes between the upper rio Paraná and rio Doce basins.

Neoplecostomus is one genus of armored catfishes which are native to South America. The Loricarids are extremely diverse and for a long while a good number of species only had a number with an 'L' as prefix. There are still many of those out there and a large number of specimens with provisional names. The name doceensis for this species is a Latin noun meaning being located or having connection with the Rio Doce basin. This hydrographic system is located in the southeastern region of Brazil.

The present study reports on three species of terrestrial isopods from western Iran. The genus Mongoloniscus Verhoeff, 1930 is recorded for the first time from Iran, with description of a new species: M. persicus sp. n. Protracheoniscus ehsani sp. n. is described and P. darevskii Borutzky, 1975 is redescribed based on Iranian specimens. The diagnostic characters of these species are figured and their geographical distribution is presented on a map.

Woodlice are terrestrial crustaceans with a rigid, segmented, long exoskeleton. This isopod group comprises over 5,000 known species and now two more have been added to the list. The first species is named after the old name for Iran, Persia. The second species was named after a friend of the author who tragically passed away during a field study.
no DNA barcodes

Three new species of the genus Senecio (Asteraceae, Senecioneae) belonging to Senecio ser. Suffruticosi subser. Caespitosi were discovered in the tributaries of the upper Tambo River, Moquegua Department, South Peru. Descriptions, diagnoses and discussions about their distribution, a table with the morphological similarities with other species of Senecio, a distribution map, conservation status assessments, and a key to the caespitose Peruvian species of Senecio subser. Caespitosi are provided. The new species are Senecio moqueguensis Montesinos, sp. nov. (Critically Endangered) which most closely resembles Senecio pucapampaensis Beltrán, Senecio sykorae Montesinos, sp. nov. (Critically Endangered) which most closely resembles Senecio gamolepis Cabrera, and Senecio tassaensis Montesinos, sp. nov. (Critically Endangered) which most closely resembles Senecio moqueguensis Montesinos.

Senecio is one of the largest genera of flowering plants including ragworts and groundsels. Despite several revisions it still contains some 1500 species. 175 of those occur in Peru and a large number (94) of them are endemic. All three new species are endemics as well and unfortunately all of them have been already categorized as critically endangered.
The name of the first species refers to the region Moquegua, where the species was encountered. The next Senecio is named after Karlè Sýkora, a well-known Dutch vegetation scientist who was the authors mentor in phytosociology. The third species is named after the town of Tassa in the Moquegua Region where the species was found.
no DNA barcodes

The genus Kuzicus was established by Gorochov (1993), and was divided into two subgenera: Kuzicus and Neokuzicus. The type species is Teratura suzukii Matsumura & Shiraki, 1908. He transferred Xiphidiopsis denticulatus Karny, 1926  and Xiphidiopsis cervicercus Tinkham, 1943 to the subgenus Kuzicus (Kuzicus), and described one new species, Kuzicus  (Neokuzicus) uvarovi. Ingrisch & Shishodia (2000) erected another new subgenus Parakuzicus, and described two new  species: Kuzicus (Parakuzicus) cervicus and Kuzicus (Parakuzicus) excavatus, and transferred Xiphidiopsis forficatus Bolívar, 1900 to the subgenus Kuzicus (Parakuzicus). Mao et al. (2009) reviewed the genus Kuzicus from China, and  reported one new species, Kuzicus (Kuzicus) multifidous Mao & Shi, 2009. Up to now, the genus Kuzicus includes 3 subgenera and 13 species all over the world (Bolívar, 1900; Matsumura & Shiraki, 1908; Tinkham, 1943; Gorochov,  1993; Ingrisch & Shishodia, 1998; Ingrisch & Shishodia, 2000; Sänger & Helfert, 2004; Sänger & Helfert, 2006a, 2006b; Ingrisch, 2006; Mao et al., 2009). This paper describes one new species. The type specimen is preserved in the Museum of Hebei University. Morphological images were acquired using Leica DFC 450 digital imaging system. The following conventions were adopted for the specimen measurements: Body—the distance from apex of fastigium of vertex to the posterior margin of tenth abdominal tergite;  tegmen—the distance from the base of tegmen to the apex; hind femur—the distance from base of postfemur to the apex of genicular lobe.

A new grasshopper species with a name derived from the depressed tips of the male cerci.
no DNA barcode

Pseudopaludicola atragula

A new species of Pseudopaludicola is described from human-altered areas originally covered by Semideciduous Forest in northwestern state of São Paulo, southeastern Brazil. Morphologically, the new species differs from four species belonging to the P. pusilla group by the absence of either T-shaped terminal phalanges or toe tips expanded, and from all other congeners except P. canga and P. facureae by possessing an areolate vocal sac, with dark reticulation. The higher duration (300–700 ms) of each single, pulsed note (9–36 nonconcatenated pulses) that compose the call in the new species distinguishes it from all other 14 species of Pseudopaludicola with calls already described (10–290 ms). Absence of harmonics also differ the advertisement call of the new species from the call of its sister species P. facureae, even though these two species presented unexpected low genetic distances. Although we could not identify any single morphological
character distinguishing the new species from P. facureae, a PCA and DFA performed using 12 morphometric variables evidenced significant size differences between these two species.

The species name is derived from the Latin words “atra”, meaning dark, black, and “gula”, meaning throat . The males of this species show a dark throat region which is unusual within the genus Pseudopaludicola.
no DNA barcode (they sequenced 16S and wrongly call it DNA Barcode referring to a paper from 2005 in which COI was deemed not suitable. That should be off the table by now).

No comments:

Post a Comment