scholarly journals Three new species of caddisflies (Trichoptera, Hydroptilidae, Polycentropodidae, Leptoceridae) from Khon Phapheng Waterfall, the Mekong River, Laos

ZooKeys ◽  
2021 ◽  
Vol 1055 ◽  
pp. 149-159
Author(s):  
Penkhae Thamsenanupap ◽  
Hans Malicky ◽  
Chanda Vongsombath ◽  
Pongsak Laudee

The Mekong River is a hotspot area for freshwater biodiversity, but caddisfly diversity is largely understudied. Three new species of caddisflies from three different families are described and illustrated from Khon Phapheng Waterfall, the Mekong River, Laos; Orthotrichia choengthongi Malicky & Laudee, sp. nov. (Hydroptilidae), Pseudoneureclipsis khonphaphengensis Malicky & Thamsenanupap, sp. nov. (Polycentropodidae), and Setodes karrilai Malicky & Laudee, sp. nov.Orthotrichia choengthongi Malicky & Laudee, sp. nov. can be differentiated from the most similar Orthotrichia tritonMalicky 2008 by the specific shape of segment X which is long and tubular, pointed apically and curved inward then immediately upward in dorsal view. Pseudoneureclipsis khonphaphengensis Malicky & Thamsenanupap, sp. nov. differs from the similar P. kaineus Malicky & Bunlue in Malicky et al. 2004 by the shape of the inferior appendages that are usually broad, almost circular in lateral view. Setodes karrilai Malicky & Laudee, sp. nov. is mainly different to S. omphale Malicky & Changthong in Malicky et al. 2004 by the distal part of segment X which has a brush-like process.

Zootaxa ◽  
2017 ◽  
Vol 4362 (2) ◽  
pp. 294
Author(s):  
PONGSAK LAUDEE ◽  
KRIENGKRAI SEETAPAN ◽  
HANS MALICKY

Three new species of Ceraclea (Leptoceridae) from Southeast Asia are described and illustrated: Ceraclea (Athripsodina) trisdikooni n. sp. from Myanmar, C. (A.) thongnooi n. sp. from Thailand and Myanmar and C. (A.) thongpongi n. sp. from Laos. Ceraclea trisdikooni n. sp. is distinguished from other species by its inferior appendages recurved ventrad nearly 180° apically. The apex of the basal segment of each inferior appendage is more pointed. In ventral view, each inferior appendage of the new species has an obvious basoventral lobe with numerous long setae. Ceraclea thongnooi n. sp. is distinguished from those by inferior appendages that are each shaped like a seahorse head both in lateral view and ventral view. Ceraclea thongpongi n. sp. is distinguished from other species by the rectangular preanal appendages. In dorsal view, the apical end of segment X is oval and notched apically; in ventral view, the subapicodorsal lobe of each inferior appendage is rounded and straight. 


Zootaxa ◽  
2021 ◽  
Vol 4980 (3) ◽  
pp. 490-520
Author(s):  
KARL J. WITTMANN ◽  
DANIEL ABED-NAVANDI ◽  
MAUDE DUBOIS ◽  
PIERRE CHEVALDONNÉ

Three new species of the genus Heteromysis S.I. Smith, 1873 (tribus Heteromysini), are described from a rich stock of mysids obtained on request from the international community of professional aquarium keepers. The 18S rDNA and COI sequences of the three species were distinct from each other and also from other sequences published in DNA databases. Heteromysis (Olivemysis) schoenbrunnensis sp. nov. is morphologically characterized within the subgenus Olivemysis based on the structure of the first and second antennae, male pleopods, uropods, and telson. Heteromysis (Heteromysis) gulfarii sp. nov. is outstanding within the subgenus Heteromysis by sexually dimorphic modified setae on the antennular trunk. These setae are non-dimorphic in the very similar Heteromysis (Heteromysis) korntalensis sp. nov. Both species H. gulfarii and to a lesser degree also H. korntalensis show modified eyes, subquadrate in dorsal view, eyestalks anteriorly tapering in lateral view; small, well-developed cornea implanted laterally on modified eyestalk. Apart from eye structure H. gulfarii and H. korntalensis clearly fall morphologically within the nominotypical subgenus Heteromysis. 


Zootaxa ◽  
2020 ◽  
Vol 4869 (1) ◽  
pp. 55-77
Author(s):  
SUNG-HYUN KIM ◽  
CHANG-MOK LEE ◽  
YOUNG-HYO KIM

Three new species of Cumacea belonging to the genus Bodotria were collected from the Yellow Sea in Korea. Among them, Bodotria (Bodotria) hwanghaensis sp. nov. and Bodotria (Bodotria) pseudomaculosa sp. nov. share the dorso-lateral carina on the carapace and uniarticulated uropod endopod with other Korean Bodotria species. In contrast, the last one, Bodotria (Atlantobodotria) incarinata sp. nov. lacks the dorso-lateral carina on the carapace and has a biarticulated uropod endopod. The new species B. (A.) incarinata sp. nov. can be distinguished from all other Bodotria species by the combination of carapace without dorso-lateral carina or ridge, dorso-median carina marked over whole length of carapace, antero-lateral corner of carapace rounded, antennal notch shallow, maxilliped 3 merus and carpus dilated, pereopod 1 carpus not dilated, and pereopod 2 basis with plumose seta. The new species B. (B.) hwanghaensis sp. nov. can be distinguished from all other Bodotria species by the combination of carapace almost ovoid in dorsal view, carapace lower edge of mid-lateral depression forming a faint ridge, pereopod 1 carpus not dilated, and pereopod 2 basis without plumose seta. The new species B. (B.) pseudomaculosa sp. nov. can be distinguished from all other Bodotria species by the combination of carapace surface covered with coarse squamosa-reticulate patterning formed by large, shallow pits, carapace lower edge of mid-lateral depression forming an angular ridge, pereopod 1 carpus little dilated, and pereopod 2 basis with plumose seta. We described with full illustrations, including mouthparts for the three new species. Also, a key to the Korean Bodotria species is provided. 


2022 ◽  
Vol 789 ◽  
Author(s):  
Bruna Maria Silva Cavalcante ◽  
Kjell Arne Johanson

Oxyethira Eaton, 1873 is one of the most diverse genera of Hydroptilidae, comprising over 240 species distributed in all biogeographical regions. Here three new species of Oxyethira (Trichoglene) Neboiss, 1977 are described and illustrated from male specimens collected in New Caledonia: O. (Trichoglene) hamus sp. nov., recognized by the hook-shaped apex of the long inferior appendages in lateral view and by the posterior margin of segment IX with a trilobed appearance in ventral view; O. (Trichoglene) rectangulata sp. nov., recognized by the rectangular shape of the inferior appendages, which are totally fused and with two pairs of small setae on the inner face; and O. (Trichoglene) spiralis sp. nov., recognized by the strongly curvilinear shape of the subgenital process in dorsal and lateral views and by the long process spiralling around the ejaculatory duct at the phallus apex.


2021 ◽  
Vol 762 ◽  
pp. 1-48
Author(s):  
Nadiny Martins Almeida ◽  
Janet Higuti ◽  
Vitor Góis Ferreira ◽  
Koen Martens

We describe one new tribe, two new genera and three new species of the subfamily Cypridopsinae Kaufmann, 1900 from Brazilian floodplains. Brasilodopsis gen. nov. belongs in the nominal tribe Cypridopsini, and both new species in this new genus were found in both sexual and asexual populations. Brasilodopsis baiabonita gen. et sp. nov. has a wide distribution and was found in three of the four major Brazilian floodplains. Brasilodopsis amazonica gen. et sp. nov. was recorded only from the Amazon floodplain. Brasilodopsis baiabonita gen. et sp. nov. has a subtriangular shape in lateral view, whereas Brasilodopsis amazonica gen. et sp. nov. is more elongated and has more rounded dorsal margins in both valves, as well as more pronounced external valve ornamentation, consisting of rimmed pores in shallow pits. Paranadopsis reducta gen. et sp. nov. was found in asexual populations in the Upper Paraná River floodplain only and differs from other Cypridopsinae in the more elongated carapace, an A1 with strongly reduced chaetotaxy (hence the specific name) and the total absence of caudal rami in females. Because of these strong reductions in valve and limb morphology, Paranadopsini trib. nov. is created within the Cypridopsinae for this intriguing new genus and species.


2018 ◽  
Vol 58 (2) ◽  
pp. 559-566
Author(s):  
Tatiana Petersen Ruschel

Abstract Four examined specimens from Brazil, Ceará, with morphological characteristics belonging to Tibicinini (Hemiptera: Cicadidae) revealed an undescribed genus and species. Gibbocicada brasiliana gen. et sp. nov., representing the first record of Tibicinini in Brazil, is recognized mainly for the head three times shorter than pronotoum in dorsal view, the lateral ocelli almost reaching the anterior margin of pronotum, the pronotum and mesonotum pronounced dorsally in lateral view, and the fore wings with the median and cubitus anterior veins rising from the same point in the basal cell. A key to the genera of Tibicinini is presented.


2007 ◽  
Vol 15 (2) ◽  
pp. 221-228
Author(s):  
V.G. Gagarin ◽  
Vu Thanh Nguyen

Sabatieria parvula sp. n., Dorylaimopsis tumida sp. n. and Paracomesoma curvatum sp. n. from the delta of the Mekong River (Vietnam) are described and illustrated. Sabatieria parvula sp. n. differs from S. parabyssalis Wieser, 1954 and S. stekhoveni Vitiello, 1970 in the slenderer body, longer tail and narrowed labial region. Dorylaimopsis tumida sp. n. differs from D. mediterranea Grimaldi de Zio, 1968 in the shorter body, longer cephalic setae, shorter spicules and absence of striation of spicules. Paracomesoma curvatum sp. n. differs from P. longispiculum (Timm, 1961) in the longer body, shorter cephalic setae, longer stoma and spicules, and structure of cuticle areolation.


Zootaxa ◽  
2017 ◽  
Vol 4258 (3) ◽  
pp. 287
Author(s):  
JOSEP MARIA OLMO-VIDAL

A new species of the genus Prionotropis Fieber, 1853 is described from Catalonia (Northeast of the Iberian Peninsula). Prionotropis ancosae n. sp. was collected in a calcicolous stepic scrub dominated mainly by thyme (Thymus vulgaris). P. ancosae n. sp. is characterized by the following characters: the pronotum in dorsal view narrow and in lateral view with the principal transverse sulcus between prozona and metazona clearly incised; mesosternal lobes equal width than long and width than mesosternal interspace; tegmina extend at most to the end of second abdominal segment in the females and the end of abdomen in the males; inside hind femora at the base to the middle part and inside hind tibiae blue; and phallic complex with the penis valves long. This new species is compared to the similar species P. flexuosa (Serville, 1838). In Catalonia two species of genera Prionotropis Fieber, 1853 are present, P. flexuosa and P. ancosae n. sp. 


Zootaxa ◽  
2021 ◽  
Vol 5082 (2) ◽  
pp. 101-117
Author(s):  
ANAIS RIVAS-TORRES ◽  
BINDIYA RASHNI ◽  
HILDA WAQA-SAKITI ◽  
MARIKA TUIWAWA ◽  
MARÍA OLALLA LORENZO-CARBALLA ◽  
...  

Nesobasis rito sp. nov. (Holotype ♂, Fiji, Vanua Levu, Drawa, 31 v 2018, A. Rivas-Torres leg.) from the comosa group is here described, illustrated, diagnosed, and compared with morphologically close species of the genus. Nesobasis rito can be distinguished from its related congeners by the shape of the caudal appendages and the ligula. The most similar species are N. comosa and N. heteroneura, which, like N. rito, have the caudal appendages covered by dense setae (especially the first species), but the shape differs clearly in lateral view, with N. rito having longer and more slender appendages, and a basal tooth clearly seen in dorsal view, absent in other members of the comosa group. The specific status of the collected specimens is also supported by the results of genetic analyses, where N. rito appears as a well-supported monophyletic clade. Nesobasis rito also has a distinct distribution from its most similar congeners: it is found on Vanua Levu, while N. comosa is found on Viti Levu and the closely related N. heteroneura is found on Viti Levu and Ovalau. All species of this group are found in streams with native forest riparian vegetation on their respective islands.  


Zootaxa ◽  
2010 ◽  
Vol 2617 (1) ◽  
pp. 55 ◽  
Author(s):  
ITAMAR A. MARTINS ◽  
CÉLIO F. B. HADDAD

A new species of Ischnocnema is described from Serra da Mantiqueira, Municipality of Campos do Jordão, State of São Paulo, Brazil. The new species is a member of the Ischnocnema lactea Species Series. The new species differs from other species in the Ischnocnema lactea Species Series by its small size, snout sub-elliptical in dorsal view and acuminate-rounded in lateral view, and advertisement call. Descriptions of the dorsal coloration, advertisement call, and natural history are presented.


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