scholarly journals Marked differentiation in a new species of dwarf stonebasher,Pollimyrus cuandoensissp. nov. (Mormyridae: Teleostei), from a contact zone with two sibling species of the Okavango and Zambezi rivers

2013 ◽  
Vol 48 (7-8) ◽  
pp. 429-463 ◽  
Author(s):  
Bernd Kramer ◽  
Herman van der Bank ◽  
Michael Wink
1963 ◽  
Vol 41 (6) ◽  
pp. 971-989 ◽  
Author(s):  
Eric L. Mills

Ampelisca vadorum is described from eastern North American coastal waters. It has been confused since 1903 with the European Ampelsca spinipes Boeck, but differs considerably in morphology and ecology. A. spinipes is redescribed and figured. A deep-water record of A. spinipes from Cabot Strait refers to A. spinimana Chevreux. "Intersexes" in A. vadorum are really subadult males. Two generations per year occur north of Cape Hatteras. A small undescribed sibling species occurs in the same areas. Ten other western Atlantic Ampelisca species are discussed briefly, and a key is given to all species of the area.


1996 ◽  
Vol 74 (10) ◽  
pp. 1898-1906 ◽  
Author(s):  
Cheryl A. Jerome ◽  
Denis H. Lynn ◽  
Ellen M. Simon

Ciliates infected 0.25% of adult Aedes sp. mosquitoes collected in Guelph, Ontario. Morphological observations of live and stained specimens indicated that these ciliates belonged to the Tetrahymena pyriformis sibling species complex. This study provides the first well-documented case of insects being infected by a species in the T. pyriformis complex. Mating experiments demonstrated that these "mosquito" ciliates were reproductively isolated from previously described biological species in the complex, and are designated a new species, Tetrahymena empidokyrea n.sp. Phylogenetic analysis using SSrDNA sequences suggested that T. empidokyrea n.sp. is either basal to all species in the genus Tetrahymena or basal to one of the two main lineages in that genus.


2005 ◽  
Vol 13 (2) ◽  
pp. 233-238
Author(s):  
V.N. Tanasijtshuk

Two sibling species of Chamaemyiidae are considered: a new species, Leucopis decipiens sp. n. from the Nearctic, and L. annulipes Zetterstedt, 1848, widespread in the Palaearctic and the Nearctic.


1985 ◽  
Vol 117 (12) ◽  
pp. 1489-1496 ◽  
Author(s):  
G.G. Grant ◽  
L. MacDonald ◽  
D. Frech ◽  
K. Hall ◽  
K.N. Slessor

AbstractField-screening tests using dodecenyl and dodecadienyl acetates and alcohols were conducted in pine plantations in northern Ontario to find attractants for Rhyacionia and Eucosma moths. Rhyacionia adana was attracted by various ratios of (E)-9-dodecenyl acetate and (E)-9-dodecen-1-ol (99:1 to 70:30) but no clear preference was observed. Similarly, R. busckana was also attracted to the same ratios of these compounds. Rhyacionia granti Miller, a new species revealed by these tests, was attracted to (E,E)-8.10-dodecadienyl acetate. Rhyacionia granti and R. busckana are newly recognized sibling species distinguished in this study by differences in their respective attractants, EAG responses, and phenologies. The fourth species studied. E. gloriola, was optimally attracted by 9:1 and 8:2 ratios of (Z)-9-dodecenyl acetate and (E)-9-dodecenyl acetate. Flight data for the 4 species in the same plantation revealed overlapping flight periods. Rhyacionia granti was the earliest flier, followed closely by R. adana and R. busckana, and somewhat later by E. gloriola.


Zootaxa ◽  
2018 ◽  
Vol 4527 (2) ◽  
pp. 269 ◽  
Author(s):  
THOMAS ZIEGLER ◽  
HAI NGOC NGO ◽  
ANH VAN PHAM ◽  
THAM THI NGUYEN ◽  
MINH DUC LE ◽  
...  

A second species of the previously monotypic snake genus Parafimbrios is described from Lai Chau Province, northern Vietnam, based both on molecular and morphological evidences. Parafimbrios vietnamensis sp. nov. is characterized by a combination of the following characters: 1) rostral laterally with two raised, curved edges; the upper one, together with a horizontal curved ridge of tissue, separate the rostral from the internasals; 2) nasal in contact zone with rostral with curved raised edge; 3) nasal in contact zone with supralabials each with two small oblique, curved raised edges located above first and second as well as above second and third supralabials; 4) suture between the internasals much longer than that between the prefrontals; 5) supralabials 8, with the first four bearing raised edges; 6) infralabials 7; mental and anterior three to four infralabials with raised edges; 7) temporals 4+4–5; 8) 35–33–29 dorsal scale rows; 9) laterally rounded ventrals 164; 10) unpaired subcaudals 49; 11) total length of at least 266 mm in males (with a tail length of 44 mm, and a tail / total length ratio of 0. 165). This discovery brings the total number of taxa of the family Xenodermatidae in Vietnam to seven species: Achalinus ater, A. rufescens, A. spinalis, Fimbrios klossi, F. smithi, Parafimbrios lao, and P. vietnamensis. 


Zootaxa ◽  
2009 ◽  
Vol 2010 (1) ◽  
pp. 31-45 ◽  
Author(s):  
HENRIK WALLIN ◽  
ULF NYLANDER ◽  
TORSTEIN KVAMME

The common European cerambycid Leiopus nebulosus (Linnaeus, 1758) is herein split into two sibling species. The male genitalia characters, as well as spermathecae in females, were examined and found to provide strong support for this separation. A new species, Leiopus linnei sp. nov., is based on specimens mainly from Scandinavia. The establishment of the new species is supported by DNA barcoding of Scandinavian specimens of L. nebulosus, L. linnei sp. nov., and L. punctulatus (Paykull, 1800). There are significant genetic differences between all these species. The geographical distribution and the bionomy of L. nebulosus and L. linnei sp. nov. are described. The type of Cerambyx nebulosus Linnaeus, 1758 is lost. A neotype of Cerambyx nebulosus, currently Leiopus nebulosus (Linnaeus, 1758), is designated and a redescription of L. nebulosus is presented. A key for the identification of L. nebulosus and L. linnei sp. nov. is provided. The varieties L. nebulosus var. dissimilis Pic, 1889, L. nebulosus var. unifasciatus Pic, 1891, and L. nebulosus var. siculus Pic, 1924 are considered as junior synonyms, syn.nov. of L. nebulosus.


Zootaxa ◽  
2012 ◽  
Vol 3547 (1) ◽  
pp. 46 ◽  
Author(s):  
KYU-TEK PARK ◽  
SANGMI LEE

Two new species of the Torodora karismata species complex, T. parakarismata Park, sp. nov. and T. sabahana Park, sp. nov., are described from Sumatra, Indonesia, and Sabah, Malaysian Borneo, respectively, and a sibling species of Torodora leucochlora (Meyrick), T. niphadodes Park, sp. nov., is described from the Philippines. The Torodora new species are easily distinguished from congeners by having dark-fuscous wings with various sizes of whitish costal patches or the orange-white wings and body. Illustrations of adults and genitalia for the new species are provided, as well as keys to the species for each the two species-complexes.


1975 ◽  
Vol 107 (12) ◽  
pp. 1327-1332 ◽  
Author(s):  
J. D. Lafontaine

AbstractEuxoa melana n. sp., a sibling species of E. misturata (Smith), is described from the Panhandle area of Texas and from south-western Kansas. Together, the two species are herein referred to as the misturata group which is defined on the basis of genitalic characters. Adults and genitalia are illustrated.


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