THE GALÁPAGOS ISLANDS’ GENUS NEORYCTES ARROW (COLEOPTERA: SCARABAEIDAE: DYNASTINAE)

1995 ◽  
Vol 127 (2) ◽  
pp. 177-193 ◽  
Author(s):  
Joyce Cook ◽  
H.F. Howden ◽  
S.B. Peck

AbstractThe endemic Galápagos’ genus Neoryctes Arrow has had a confused nomenclatorial and taxonomic history. Evaluation of morphological variation in the 41 specimens now available confirms the distinctiveness of the genus and establishes the existence of four species, each restricted to a single island. The original Darwin specimen, named Oryctes galapagoensis by G.R. Waterhouse in 1845, is shown to be from Isla Santiago. Two other names are valid: N. linelli Mutchler for the population on San Cristobal and N. moreti Dechambre for the one on Santa Cruz. The population on Floreana is named as a new species, N. williamsi. Neoryctes most likely originated from a Pentodontini dynastine ancestor from lowland South or Central America. The ancestor first dispersed to Isla San Cristobal, one of the oldest islands. It is hypothesized that before hindwing reduction occurred, which is now characteristic of all members of the genus, individuals from San Cristobal spread to the other islands. Subsequently, possibly during periods of Pleistocene aridity, each population became restricted to its present range in the moist highland zone of an individual island.

Phytotaxa ◽  
2013 ◽  
Vol 144 (2) ◽  
pp. 56
Author(s):  
JUAN JAVIER ORTIZ-DÍAZ ◽  
ITZIAR ARNELAS ◽  
JUAN TUN ◽  
JOSÉ SALVADOR FLORES

A new species Neomillspaughia hondurensis (Polygonaceae) from Honduras is described and illustrated. This species is morphologically and ecollogicaly different from the other two currently known Neomillspaughia species, being more related to N. emarginata than to N. paniculata. A comprehensive comparison and a key for the three species are provided. Se describe e ilustra la nueva especie Neomillspaughia hondurensis (Polygonaceae) de Honduras. Esta especie es morfológicamente y ecológicamente diferente de las dos únicas especies de Neomillspaughia, estando más relacionada con N. emarginata que con N. paniculata. Se proporciona información comparativa de la nueva especie con las especies relacionadas y una clave para la identificación de las mismas.


Zootaxa ◽  
2018 ◽  
Vol 4482 (1) ◽  
pp. 151 ◽  
Author(s):  
NUKUL SAENGPHAN ◽  
BHINYO PANIJPAN ◽  
SAENGCHAN SENAPIN ◽  
PARAMES LAOSINCHAI ◽  
PINTIP RUENWONGSA ◽  
...  

A small freshwater prawn in Thailand has been found to be a new species and is named Macrobrachium suphanense (Decapoda: Palaemonidae). Fully grown male M. suphanense appeared very different from the most closely related male of M. sintangense: size smaller, second pereiopod smaller and less robust, rostrum form different and, in females, fewer eggs. Less closely related, fully grown M. dolatum has sharper distal cutting edge on fixed finger and M. hungi has longer rostrum than M. suphanense. DNA analyses put M. suphanense, M. sintangense and M. nipponense in the same clade with M. nipponense sister to the other two. Two more clades consist of M. dienbienphuense and M. niphanae on the one hand and M. lanchesteri and M. rosenbergii on the other. The relationship among the three clades is not clearly resolved. 


Zootaxa ◽  
2012 ◽  
Vol 3221 (1) ◽  
pp. 48 ◽  
Author(s):  
JOHN E. McCOSKER ◽  
DOUGLAS J. LONG ◽  
CAROLE C. BALDWIN

We describe Bythaelurus giddingsi sp. nov. based on 7 specimens collected using the submersible Johnson Sea-Link fromdeepwater (428–562 m depth) areas of the Galápagos Islands. It is presumed to be endemic to the archipelago. The newspecies differs from its congeners in its coloration, the length of its anal-fin base, and in other morphological characters. The disjunct distribution of species of the widely-distributed Indo-Pacific genus Bythaelurus is discussed.


Zootaxa ◽  
2008 ◽  
Vol 1761 (1) ◽  
pp. 59 ◽  
Author(s):  
JOSÉ CASSIMIRO ◽  
VANESSA K. VERDADE ◽  
MIGUEL T. RODRIGUES

We describe a new species of a large eleutherodactyline frog from the mountain rocky meadows (“campos rupestres”) of the Serra do Sincorá, Espinhaço mountain range, Mucugê municipality, State of Bahia, Brazil. The new species is promptly diagnosed from all the other Brazilian eleutherodactylines by its large size (males SVL 40.3–41.1; females SVL 75.2–79.7mm), broad head (head width 43–49% of SVL), presence of frontoparietal crests, pars fascialis of the maxilla deepened, discs absent on fingers, toes with poorly developed discs, first and second toes ridged, and tarsal fold absent. On the basis of these characters the new species is attributed to the genus Strabomantis up to now restricted to southern part of Central America and northwest part of South America.


Parasitology ◽  
1912 ◽  
Vol 5 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Cecil Warburton

The identification of species of Rhipicephalus is likely to give more trouble than is the case with any other genus of Ixodidae, for while, on the one hand, there are few species which depart greatly from the general type, on the other hand the range of variation within the species is extremely great. In no genus is it so dangerous to describe a new species from a single individual, especially if the specimen be a female.


1987 ◽  
Vol 119 (10) ◽  
pp. 881-885 ◽  
Author(s):  
Stewart B. Peck ◽  
William A. Shear

AbstractTheridion strepitus sp. nov. is described from lava tube caves from Isla Santa Cruz, Galápagos, Ecuador. It is the only species known in this worldwide genus that is eyeless and it is the only Galápagos species that has stridulatory picks on the male abdomen. The stridulatory apparatus demonstrates that the species is not a descendant from the other Theridion species known in the Galápagos, but is probably a relict of a lineage now extinct there in epigean habitats.


2017 ◽  
Vol 57 (2) ◽  
pp. 765-774 ◽  
Author(s):  
Michal Tkoč ◽  
Jan Ježek ◽  
François Le Pont

A new species of moth flies, Alepia bifida sp. nov., is described and figured based on males, females and eggs. The type specimens were collected in central Nicaragua, Cerro Musún Mt. This new species is characterized by unique morphology of the wing, basiphallus, distiphallus and gonostyli. The genus Alepia Enderlein, 1937 is one of the most diverse genera of Neotropical Psychodinae (54 known species including the one described here), but it is so well characterized morphologically that no generic synonyms have been proposed.


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