scholarly journals A revision of the genus Teleopsis Rondani (Diptera, Diopsidae) in Sri Lanka with descriptions of two new species and a review of the other stalk-eyed flies from the island

ZooKeys ◽  
2020 ◽  
Vol 946 ◽  
pp. 113-151
Author(s):  
Hans R. Feijen ◽  
Cobi Feijen
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Sri Lanka ◽  
Species Group ◽  
The Other ◽  
Sister Species ◽  
Sri Lankan ◽  
Sexually Dimorphic ◽  
Two New Species

The literature on Sri Lankan Diopsidae is reviewed. Eight Diopsidae are now known to occur in Sri Lanka, five species in the genus Teleopsis and one species each in the genera Sphyracephala, Diopsis, and Cyrtodiopsis. The presence of Cyrtodiopsis requires confirmation to exclude the possibility of mislabelling. All five Teleopsis species are endemic, as are the Diopsis species and probably the Cyrtodiopsis species. Only Sphyracephala bipunctipennis Senior-White has a larger distribution as it also occurs in India. A key is presented for the Diopsidae of Sri Lanka. Three Teleopsis species were already known to occur in Sri Lanka: T. ferruginea Röder, T. krombeini Feijen and T. maculata Feijen. These species form the T. ferruginea species group. Two new species are now described for this group: Teleopsis neglectasp. nov. and Teleopsis sororasp. nov.Teleopsis ferruginea is redescribed, as an earlier redescription turned out to be based on a series of specimens of its sister species T. sororasp. nov. The other three Diopsidae of Sri Lanka are listed and illustrated. Allometric aspects of the five Teleopsis species are discussed. Three Teleopsis species are sexually dimorphic with regard to eye span, while two species are monomorphic. It is assumed that sexual dimorphism developed independently in the T. ferruginea species group. This brings the number of known cases of independent development of sexual dimorphism in the Diopsidae to ten.

Two new species of Lagenandra (Araceae) from the Wet Zone of Sri Lanka

Phytotaxa ◽  
2021 ◽  
Vol 522 (3) ◽  
pp. 187-199
Author(s):  
INDRAKHEELA MADOLA ◽  
DEEPTHI YAKANDAWALA ◽  
KAPILA YAKANDAWALA ◽  
SENANI KARUNARATNE
Keyword(s):  
New Species ◽  
Sri Lanka ◽  
The Other ◽  
Critically Endangered ◽  
Sri Lankan ◽  
Taxonomic Key ◽  
The World ◽  
Two New Species ◽  
Conservation Assessments ◽  
Wet Zone

Taxonomic revisions are the most reliable pathway in unfolding new species to the world. During such a revision of the genus Lagenandra in Sri Lankan, we came across two new species: Lagenandra kalugalensis and Lagenandra srilankensis from the Wet Zone of Sri Lanka. The two new species were studied in detail and compared with the morphology of the other species described in the genus, and based on field collected data conservation assessments were performed. A detailed description for the two new species and an updated taxonomic key to the Sri Lankan Lagenandra is presented here for easy identification. Recognizing two new endemic members enhances the number of Sri Lankan species of Lagenandra to eleven and global to nineteen. According to the IUCN red data category guidelines, L. kalugalensis qualifies for Critically Endangered category under Criterion B1ab (ii,iii,v) + B2ab (ii,iii,v) while L. srilankensis qualifies for Critically Endangered category under B1ab (iii, iv) + C2 (a) (i, ii). Hence, immediate conservation measures are imperative.

scholarly journals Two new species of the genus Crenicichla Heckel, 1840 from the upper rio Uruguay drainage (Perciformes: Cichlidae)

2007 ◽  
Vol 5 (4) ◽  
pp. 449-456 ◽  
Author(s):  
Carlos A. S. de Lucena
Keyword(s):  
New Species ◽  
Species Group ◽  
The Body ◽  
The Other ◽  
Horizontal Line ◽  
Lower Edge ◽  
Middle Portion ◽  
Lateral Band ◽  
Two New Species ◽  
Vertical Bars

Two new species of the genus Crenicichla from the upper rio Uruguay basin are described, Crenicichla hadrostigma and C. empheres. Both are included in the C. missioneira species group along with C. missioneira, C. minuano, C. tendybaguassu, C. igara, and C. jurubi, all occurring in the upper and middle rio Uruguay drainage. Crenicichla hadrostigma is distinguished by the conspicuous ocellated posttemporal blotch, absence of a humeral spot and lateral band, and the presence in males of nine to 16 narrow vertical bars extending from the dorsum to a horizontal line that passes through the lower edge of pectoral axilla. Crenicichla empheres is distinguished from the other species of the missioneira-group by the presence of six to eight horizontally elongate dark blotches along the middle portion of the body, slightly below the upper lateral line, absence of a lateral band, presence in males of numerous dark and irregularly arranged spots on nape, back, and sides of body, and isognathous mouth. A key to the species from rio Uruguay basin is presented.

New Stigmaeopsis species on Miscanthus grasses in Taiwan and Thailand (Acari, Tetranychidae)

2019 ◽  
Vol 24 (4) ◽  
pp. 675
Author(s):  
Yutaka Saito ◽  
Yukie Sato ◽  
Manita Kongchuensin ◽  
Jung-Tai Chao ◽  
Ken Sahara
Keyword(s):  
New Species ◽  
National Park ◽  
Species Group ◽  
The Other ◽  
Two New Species

We described two new species collected from Miscanthus spp. in Thailand and Taiwan. One of the new species, Stigmaeopsis inthanonsis Saito, Kongchuensin & Sahara n. sp., was found in Thailand (Inthanon National Park). The other species from Taiwan, named Stigmaeopsis formosa Saito, Chao & Sato n. sp. was previously referred to as T-form or ML form of Stigmaeopsis miscanthi (Saito). Thus 15 species are now involved in the genus Stigmaeopsis. Because five species inhabiting Miscanthus grasses are resemble together, we call them as Stigmaeopsis miscanthi species group. An updated key to all known species of Stigmaeopsis is proposed.

scholarly journals Description of two new species of Dorsiceratus Drzycimski, 1967 (Copepoda: Harpacticoida: Ancorabolidae) from Sedlo and Seine Seamounts (Northeastern Atlantic) and remarks on the phylogenetic status of the genus

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 257-286 ◽  
Author(s):  
KAI HORST GEORGE ◽  
CHRISTOPH PLUM
Keyword(s):  
New Species ◽  
The Other ◽  
Sexually Dimorphic ◽  
Diagnostic Features ◽  
Abdominal Somite ◽  
Clear Cut ◽  
Outer Seta ◽  
Phylogenetic Status ◽  
Two New Species ◽  
Northeastern Atlantic

Two new species of Dorsiceratus Drzycimski, 1967 (Copepoda, Harpacticoida, Ancorabolidae), Dorsiceratus wilhelminae sp. nov. and D. dinah sp. nov. are described from Sedlo and Seine Seamounts, respectively (both northeast Atlantic). These are the first records of Dorsiceratus species from seamount summits. Both new species resemble the described species D. octocornis Drzycimski, 1967, D. triarticulatus Coull, 1973, and D. ursulae George, 2006, with respect to most morphological features. On the other hand, D. wilhelminae sp. nov. has long spinules at the inner margin of the A2 enp, while D. dinah sp. nov. bears two, rather than one, tubepores dorsally on third abdominal somite, and a geniculate first outer seta on P1 exp2. These characters are considered as apomorphic relative to the described Dorsiceratus species. As discussed in the present paper, the maintenance of a genus Dorsiceratus appears to be problematic. Although specimens may be assigned without difficulty to a group “Dorsiceratus”, such assignments are based on diagnostic features only; no clear-cut apomorphies have been detected so far to characterize the monophyly of Dorsiceratus. Just two apomorphic characters appear to be synapomorphies for all of the described Dorsiceratus species: 1) P2 enp2 with one rather than two setae and 2) P4 exp sexually dimorphic. Unfortunately, these features are relatively widespread within the Ceratonotus-group sensu Conroy-Dalton (2001) and therefore of rather low value. The authors decided, however, to retain the genus Dorsiceratus until new insights provide more information to support or disprove that hypothesis.

Waterfall-inhabiting Naucoridae (Hemiptera: Heteroptera) of southern India and Sri Lanka: Pogonocaudina Sites and Zettel, n. gen., and a review of Diaphorocoris with descriptions of two new species

Zootaxa ◽  
2011 ◽  
Vol 2760 (1) ◽  
pp. 1
Author(s):  
ROBERT W. SITES ◽  
HERBERT ZETTEL ◽  
M. ARUNACHALAM
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Sri Lanka ◽  
Tamil Nadu ◽  
New Genus ◽  
Southern India ◽  
Taxonomic Key ◽  
Two New Species ◽  
Tamil Nadu State ◽  
Males And Females

A new genus of Naucoridae inhabiting a waterfall in Tamil Nadu state in southern India is described. Pogonocaudina Sites and Zettel NEW GENUS is diagnosed by a dense fringe of long hairs around the perimeter of the posterior abdominal segments, and by both males and females with a single segmented front tarsus with two pretarsal claws. Despite the lack of sexual dimorphism in the forelegs, this new genus is a member of the subfamily Laccocorinae, an assignment based on other characters consistent with this subfamily. Character states of this genus are compared with those of other Asian genera of Laccocorinae. The genus Diaphorocoris is reviewed and two new species are described here: Diaphorocoris arunachalami Sites and Zettel NEW SPECIES and D. kiliyur Sites and Zettel NEW SPECIES. Three species of Diaphorocoris are now known from southern India, and with one other species from Sri Lanka, a total of four species are now known in the genus. A taxonomic key is provided to distinguish all known waterfall-inhabiting Naucoridae in southern India and Sri Lanka.

Review of Chinese Empoasca Walsh (Hemiptera: Cicadellidae), with description of seven new species and some new Chinese records

Zootaxa ◽  
2011 ◽  
Vol 3055 (1) ◽  
pp. 1
Author(s):  
YANG LIU ◽  
DAO-ZHENG QIN ◽  
MURRAY J. FLETCHER ◽  
YA-LIN ZHANG
Keyword(s):  
New Species ◽  
Species Group ◽  
The Other ◽  
Two New Species ◽  
First Time

Seven new species of Empoasca (Empoasca) Walsh, 1862 are described and illustrated. Five of the new species belong to the Empoasca warchalowskii group: Empoasca (Empoasca) longa Zhang & Liu, Empoasca (Empoasca) megalophylla Qin & Liu, Empoasca (Empoasca) paragucia Fletcher & Liu, Empoasca (Empoasca) undulata Zhang & Liu, Empoasca (Empoasca) vickiae Liu, spp. nov. The other two new species cannot be placed into a species group: Empoasca (Empoas- ca) dendritica Qin & Liu and Empoasca (Empoasca) polyprocessa Fletcher & Liu, spp. nov. An additional 15 species and the subgenus Empoasca (Livasca) Dworakowska & Viraktamath, 1978 are recorded for the first time from China.

Sinharaja gen. n., a new Uropodina mite genus from Sri Lanka with description of two new species (Acari: Mesostigmata: Uropodidae)

Biologia ◽  
2013 ◽  
Vol 68 (1) ◽  
Author(s):  
Jenő Kontschán
Keyword(s):  
New Species ◽  
Sri Lanka ◽  
New Genus ◽  
The Other ◽  
Two New Species ◽  
Mite Genus

AbstractA new Uropodina genus (Sinharaja gen. n.) is described on the basis of two new species (S. ceylonensis sp. n. and S. sinhala sp. n.) from Sri Lanka. The new genus differs by the strongly sclerotised dorsal lines, pentagonal pygidial shield, the shape and length of dorsal setae and the shape of first and fourth hypstomal setae, internal malae and epistome from the other known Uropodina genera.

Review of the Poecilimon (Poecilimon) zonatus species group and description of new species from Turkey with data on bioacoustics and morphology (Orthoptera: Phaneropterinae)

Zootaxa ◽  
2018 ◽  
Vol 4417 (1) ◽  
pp. 1 ◽  
Author(s):  
HASAN SEVGİLİ ◽  
DENİZ ŞİRİN ◽  
KLAUS-GERHARD HELLER ◽  
MİCHÈLE LEMONNIER-DARCEMONT
Keyword(s):  
New Species ◽  
Species Complex ◽  
Taxonomic Revision ◽  
Species Group ◽  
The Other ◽  
New Subspecies ◽  
The Balkans ◽  
The North ◽  
Two New Species ◽  
Basal Branch

The aim of this study is to conduct a detailed taxonomic revision of the Poecilimon (Poecilimon) zonatus species-group (Orthoptera: Phaneropterinae) using both morphology and bioacoustics. Two new species (Poecilimon (Poecilimon) salmani, P. (P) azizsancar) and one new subspecies (P. (P) zonatus datca) are described. Based on the data, we conclude that the species complex can be separated into two subgroups (P. tauricola and P. zonatus). Within the P. zonatus subgroup, song structures indicate P. variicercis as basal branch since producing two syllable types is possibly a derived character. From both, from bioacoustics and morphology, it is concluded that the relationships between species of the group are as follows: P. tauricola subgroup (P. tauricola + P. azizsancar) + P. zonatus subgroup (P. variicercis + (P. varicornis + (P. zonatus zonatus+P. zonatus datca)) + (P. salmani+P. vodnensis)))). Except for two species (P. vodnensis and P. varicornis), the other species of the group are all distributed in Anatolia. P. vodnensis is known only from Macedonia, whereas, P. varicornis has been recorded only from Syria and Lebanon. We assume that the group originated from an Anatolian ancestral stock and expanded its distribution to the Balkans through Taurus Way and Dardanelles. Other ancestral populations may have also spread in the north-south directions through the appropriate steppe corridors in the Anatolian Diagonal Mountains and in its vicinity.

scholarly journals Two new species of Characidium Reinhardt (Characiformes: Crenuchidae) from northeastern Brazilian coastal drainages

2015 ◽  
Vol 13 (3) ◽  
pp. 487-498 ◽  
Author(s):  
Angela M. Zanata ◽  
Priscila Camelier
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Posterior Margin ◽  
The Other ◽  
Caudal Fin ◽  
Two New Species ◽  
Black Blotch ◽  
Secondary Sexual Dimorphism ◽  
Secondary Sexual

Two new species of Characidium , onefrom the rio Pardo basin, and anotherfrom the rio Paraguaçu basin, Bahia, Brazil, are described. The first new speciesis distinguished from its congeners by having conspicuous black vertical traces on body, formed by the concentration of melanophores along posterior margin of scales. The species further differs from most congeners by the presence of a conspicuous 3-shaped black blotch on the caudal fin and isthmus not covered by scales. The other new species is distinguished from congeners by having irregular dark blotches on dorsum alternating elongation to one or the other side of body, usually not connected to lateral blotches. The species can be further characterized by the absence of conspicuous blotches or bars on fins and the presence of secondary sexual dimorphism, such as pelvic fins of mature males longer than in females and with bony hooks.

Two new species of Lankascincus (Squamata: Scincidae) from Sripada Sanctuary (Peak Wilderness), in Sri Lanka

Zootaxa ◽  
2007 ◽  
Vol 1612 (1) ◽  
pp. 1-24 ◽  
Author(s):  
L. J. MENDIS WICKRAMASINGHE ◽  
ROSHAN RODRIGO ◽  
NIHAL DAYAWANSA ◽  
U. L.D. JAYANTHA
Keyword(s):  
New Species ◽  
Sri Lanka ◽  
Longitudinal Axis ◽  
The Other ◽  
Brown Stripe ◽  
Two New Species

The present work describes two new species of Lankascincus from the Sripada Sanctuary (Peak Wilderness Sanctuary) of Sri Lanka. Lankascincus sripadensis sp. nov. is the largest member in the genus and it is morphologically closely related to L. deignani (Taylor 1950). But Lankascincus sripadensis sp. nov. can be clearly distinguished from other members of the genus, by having three loreal scales, posterior loreals larger than the anterior in longitudinal axis, prefrontal and upper anterior preocular touching posterior loreal; 2 nd , 3 rd supralabials and 1 st subocular scale touching lower posterior loreal; males with pale brown throat and the ventral head; a dark brown stripe in the light brown background on the dorsal body, divided nasal. The other new species, Lankascincus munindradasai sp. nov. is morphologically closely related to L. taprobanensis (Kelaart, 1854) and can be clearly distinguished from other member of the genus, by having one loreal scale, the loreal is touching the prefrontal, frontonasal, nasal, 1 st and 2 nd supralabial scales, upper and lower preoculars; the loreal is larger than the longitudinal axis.

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