Wednesday, April 15, 2015

Discoveries of the week #34

A new species, C. pseudoconchiformus sp. n., is described from Xizang, China. The present new species is distinguished from its congeners by a body length of 32−40 mm, carapace with the anterior margin straight, chela with length/width ratio average of 3.3 in males (3.2−3.4, two adults), and 2.5 in females (2.3−2.6, nine adults), eight or nine (eight usually) rows of denticles on fixed and movable fingers of pedipalp chelae, five pectinal teeth in males and three or four in females. To date, the chaerilid species fauna of China consists of nine species. An updated identification key to Chaerilus from China is presented.

The first of two newly described scorpion species. The species name of this new member of a small monotypic family refers to the geographically and morphologically most closely related species Chaerilus conchiformus, by adding the Greek prefix “pseudo".
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A new species, Scorpiops ingens sp. n., from Xizang, is described and illustrated. Scorpiops ingens sp. n. is characterized by yellow-brown color, large size (length of adults above 70.0 mm), small and dense granules on tegument, a pair of small median eyes, 17 external trichobothria (5 eb, 2 esb, 2 em, 4 est, 4 et), and 7 or 8 (usually 7) ventral trichobothria in the pedipalp patella, chela with a length/width ratio average of 2.2 in males and females, pedipalp chela fingers on adult females and males scalloped, pectinal teeth count 6–8, pectinal fulcra absent. With the description of this new species, the number of known species of Scorpiops from China is raised to 12. An updated identification key to Scorpiops from China is presented.

This is the second new scorpion from China. The species name refers to its size. The Latin word "ingens' means huge.
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Neomida diminuta sp. n. is described, based on a single male specimen from Colombia, and a redescription of N. suilla (Champion) is given. Data on the morphology of the aedeagus for both species, and on the female abdominal terminalia for N. suilla are provided. New records of N. suilla from Atlantic Forest remnants in the states of Espírito Santo and Minas Gerais, Brazil are given.

This new species of darkling beetle belongs to genus of strict fungivorous beetles that live in hard conks of wood decomposing fungi. The species name “diminuta” means small, referring to its minute size (1.7 mm total length).
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Stephos geojinensis
Two new species of benthopelagic copepods of the genus Stephos T. Scott, 1892, belonging to the family Stephidae G.O. Sars, 1902, are described based on specimens collected in the stagnant water flooding the burrows excavated by ocypodid crabs in two intertidal mud-flats, and from near-bottom shallow waters in Korea, respectively. They can be easily diagnosed based on the ornamentation of both the female genital double-somite and genital operculum; the morphology of the distal segment of the male right P5; the presence/absence of a tiny pointed process on the distomedial angle of second segment of female P5; and the condition (seta or spine) of the lateral armature element on the distal segment of female fifth legs, among other features. This is one of the few cases reported of calanoid copepods living as commensals of other invertebrates, and raises to six the number of members of the genus reported from Asia. This is also the first record of the family Stephidae in Korea.

These two new species are first records of the calanoid family Stephos in Korean waters. One was named after the type locality Geojin Port, Gosung-gun, Gangwon-do, Korea. The second species go tits name from some dorsolateral spiniform projections present on the female genital apparatus.
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Paepalanthus serpens
We describe and illustrate Paepalanthus serpens, a microendemic species of Eriocaulaceae from the Espinhaço Range. The species is known from a single population growing in rocky areas of the Serra do Cipó, Minas Gerais. It is placed in Paepalanthus ser. Paepalanthus, and is easily distinguished from its congeneric species by its elongated, lignescent stem, thickened by the marcescent sheaths of the linear leaves, which are arranged in a rosette at the stem apex, scapes equalling the leaf height, and capitulae with straw-coloured involucral bracts. Comparisons with the morphologically similar species are provided, as well as comments on distribution, ecology, phenology and conservation status.

This new perennial species is known only from one population at the western slopes of the Serra do Cipó in Brazil. The name "serpens" refers to the serpent-like growth, with an unbranched, thick woody stem that slowly elongates and becomes creeping, with an erect apex.
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Indigofera magnifica, Indigofera asantasanensis
Indigofera magnifica

Two new species of Indigofera L. (Leguminosae) are described from the Sneeuberg Centre of Floristic Endemism on the southern Great Escarpment, Eastern and Western Cape Provinces, South Africa. Both species are localised high-altitude endemics. Indigofera magnifica Schrire & V.R. Clark is confined to the summit plateau of the Toorberg–Koudeveldberg–Meelberg west of Graaff-Reinet, and complements other western Sneeuberg endemics such as Erica passerinoides (Bolus) E.G.H. Oliv. and Faurea recondita Rourke & V.R. Clark. Indigofera asantasanensis Schrire & V.R. Clark is confined to a small area east of Graaff-Reinet, and complements several other eastern Sneeuberg endemics such as Euryops exsudans B. Nord & V.R. Clark and E. proteoides B. Nord. & V.R. Clark. Based on morphology, both new species belong to the Cape Clade of Indigofera, supporting a biogeographical link between the Cape Floristic Region and the Sneeuberg, as well as with the rest of the eastern Great Escarpment.

The first of these two new high altitude species is named for its magnificent, showy, vivid fuchsia-pink flowers and the second for the Asante Sana Private Game Reserve, the owners and managers of which have been generous and instrumental in facilitating biodiversity research in the Sneeuberg region. The known range of this species is almost entirely confined to this property.
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