Description of the final stadium larva of Bayadera serrata Davies & Yang, 1996 (Odonata: Euphaeidae) from Thailand

Zootaxa ◽  
2020 ◽  
Vol 4894 (1) ◽  
pp. 98-110
Author(s):  
TOSAPHOL SAETUNG KEETAPITHCHAYAKUL ◽  
JUTAMAS SRIPANYA ◽  
SIRIKAMON PHLAI-NGAM ◽  
NISARAT TUNGPAIROJWONG

The damselfly genus Bayadera Selys, 1853 comprises 17 species, but the larvae of only four species have been described. Here we describe the final stadium larva of another species—Bayadera serrata Davies & Yang, 1996. Larvae were collected from a headwater stream at Nam Nao National Park, Phetchabun Province, Thailand. The larva of B. serrata is distinguished from congener species following the presence of one to three distinct spines on the genae, two pairs of setae on the ligula, one pair of setae on the ventral side of prementum, the presence of three teeth of the distal end of the labial palp, the presence of a plate-like spine on the gonapophyses, the presence of a row of rod-like setae on the distal end of the tibial comb, the presence of a cluster of long simple setae on the abdominal terga S3–9, and the presence of short terminal filament of the caudal gills. The larvae of genus Bayadera have been compared with other known larvae from family Euphaidae. Key is provided to the genera with known Southeast Asian euphaeid larvae: Anisopleura, Bayadera, and Euphaea. 

Koedoe ◽  
1993 ◽  
Vol 36 (2) ◽  
Author(s):  
Esther Van den Berg

Ogma sekgwaum spec. nov. is described and figured from the Wilderness National Park. Females of this species are characterized by having one lip annulus with smooth, wavy margin, no submedian lobes, 53-59 body annuli, not strongly retrorse anteriorly, but becoming more so posteriorly with 12-14 longitudinal rows of projections at midbody, gradually lengthening and attenuating towards posterior end of body, longer on post-vulval ventral side of body, not branched or bifurcate with small protuberances on extreme tips which become hair-like on post-vulval projections and a 64-81 (im long stylet. Ogma coronatum Schuurmans Stekhoven & Teunissen, 1938 is described and figured with notes on the juvenile. Additional measure^ ments and SEM photographs are given for Criconema duplicivestitum (Andrassy, 1963) Raski & Luc, 1985 and measurements for Ogma naomiae Van den Berg, 1992. A list is given of the other known plant-parasitic nematodes also found. Neolobocriconema palaniense Muthukrishnan, 1987 is transferred to Ogma palaniense (Muthukrishnan, 1987) comb. nov.


Zootaxa ◽  
2019 ◽  
Vol 4656 (2) ◽  
pp. 367-374
Author(s):  
LUIS GONZALO SALINAS-JIMENEZ ◽  
R. BOLDRINI ◽  
DIANA PAOLA OSORIO-RAMIREZ ◽  
CLARA INES CARO ◽  
JOSE ISMAEL ROJAS-PEÑA

Three species of Camelobaetidius Demoulin, 1966 have been reported from Colombia until now, based on nymphs. We describe a fourth species based on nymphs from the Colombian Orinoco river basin. The new species can be recognized by: 1) labrum narrowly rounded anteriorly; 2) segment II of labial palp with a short rounded distomedial projection; 3) incisors of right mandible with eleven denticles; 4) gills absent from the bases of coxae; 5) tarsal claws with ten denticles; 6) outer margin of forefemur with a row of about 23 long, spine-like setae; 7) posterior margin of tergum IV with truncate spines, and 8) terminal filament almost as long as cerci. [Zoobank URL: urn:lsid:zoobank.org:act:500CF998-8EF3-43E3-BA8B-F062B92768F3] 


2012 ◽  
Vol 21 (1) ◽  
pp. 18-27 ◽  
Author(s):  
S.G. Ermilov ◽  
A.E. Anichkin

Two species of oribatid mites (Acari: Oribatida), Pergalumna pseudosejugalis sp. nov. and Oribatella gerdweigmanni sp. nov. are described from Bu Gia Map National Park (Southern Vietnam). Pergalumna pseudosejugalis sp. nov. is most similar morphologically to P. crassipora Mahunka, 1995, but it differs from the latter in the microfoveolate integument, presence of pseudosejugal line, of a pair of transversal striate bands on ventral side and of median pore, and by shorter lamellar setae. Oribatella gerdweigmanni sp. nov. is most similar morphologically to O. sculpturata Mahunka, 1987, but it differs from the latter in a smaller body size, a microfoveolate integument, the presence of the translamella, more short lateral and medial lamellar dens, and sparse striae in an epimeral region.


ZooKeys ◽  
2019 ◽  
Vol 832 ◽  
pp. 77-89 ◽  
Author(s):  
Natdanai Likhitrakarn ◽  
Sergei I. Golovatch ◽  
Irina Semenyuk ◽  
Somsak Panha

Antheromorphanguyenisp. n. is described and illustrated from Kon Ka Kinh National Park, southern Vietnam. The new species is distinguished by a peculiar colour pattern showing a uniformly black-brown body contrasting with yellow-brown paraterga and epiproct, as well as in the pointed gonopodal process being unusually short, only approximately half as long as the solenophore. In addition, an identification key to all 13 presently known species, all mapped, is given. A new record of A.festiva is provided from southern Vietnam.


2020 ◽  
Vol 9 (1) ◽  
pp. e149911848
Author(s):  
Vitor Manuel Barros Ferreira ◽  
João Luiz DE Caíres Souza ◽  
Maíra Moraes

The benthic macroinvertebrates are organisms of extremely importance to the energy flow of lotic ecosystems, acting as a link between basal resourcers and predators. This study aimed to analyze patterns of abundance, richness and diversity of a benthic macroinvertebrates community in different types of substrate and different velocities of water. The study was carried on in a stretch of 40 meters of a headwater stream located at the Tijuca National Park, the Tijuca River. The sampling was perfomed in September 2016. We sampled four types of samples, which we denominated as “habitats”: litter in riffle, litter in pool, sand in riffle and sand in pool. A total total of 2.208 individuals were collected, with most of them being immature insects. We confirmed our assumptions by finding difference between the composition of the four types of habitats. It was found higher abundance, richness and diversity in litter habitats, confirming that the characteristics of this type of substrate are more favorable for the majority of the benthic macrofauna.


Author(s):  
Denise Pinheiro Costa

Bazzania amadoi is a new species described and illustrated here based on material collected during a study of the bryophyte flora in the Brazilian Amazon Mountains, Monte Roraima National Park, Roraima State, Brazil. Bazzania is the largest genus of Lepidoziaceae,with ca. 30 species recognized in South America. A combination of leaves slightly bifid and recurved to the ventral side, underleaves imbricate and connate with the leaves on only one side, and vittae absent with only a region of larger leaf cells in the mid-lower portion of the leaves (vitta-like), distinguishes B. amadoi from the similar B. gracilis. The new taxon is placed within the key for the identification of species from the Brazilian Amazon domain, and represents an addition to the rich endemic flora of the Brazilian Amazon mountains of the Guiana Highlands. A detailed illustration of the new species is included, and also its informal conservation assessment.


Zootaxa ◽  
2005 ◽  
Vol 1027 (1) ◽  
pp. 46 ◽  
Author(s):  
F. F. SALLES ◽  
M. B. ANDRADE ◽  
E. R. DA-SILVA

Camelobaetidius francischettii, new species, is described based on nymphs collected from Alagoas and Rio de Janeiro states, Northeastern and Southeastern Brazil, respectively. The species can be distinguished from the other described species of the genus by the following combination of characters: (1) segment 2 of labial palp with distomedial process rounded and strongly produced; (2) fore femora with prominent protuberance; (3) fore tibia with indentation at apex; (4) ventral margin of fore femur and fore tibia entirely scattered with spines; (5) tarsal claws with 34 to 37 denticles; (6) small thoracic gill at the base of fore coxae; (7) prosternum with a single, medial protuberance; (8) paraprocts with ca. 22 marginal small spines; and (9) terminal filament about as long as the length of the 10 th abdominal segment.


Zootaxa ◽  
2012 ◽  
Vol 3401 (1) ◽  
pp. 63
Author(s):  
LUCAS R. C. LIMA ◽  
RAFAEL BOLDRINI ◽  
ULISSES PINHEIRO

The genus Camelobaetidius Demoulin (Ephemeroptera: Baetidae) is represented in South America by 28 species: 19 of them are described based on nymphs, three based solely on adults, and only six based on nymphs and adults (Salles & Serrão, 2005; Dominguez et al., 2006; Boldrini & Salles, 2009; Salles & Nascimento, 2009; Boldrini et al., 2010). Camelobaetidius cayumba (Traver & Edmunds, 1968) was described from nymphs and can be distinguished, among other characteristics, by the inner margin of the second segment of labial palp pointed, thoracic gill absent at base of forelegs, claws with 15–18 denticles, and terminal filament about as long as cerci. It has been reported from Peru (Traver & Edmunds, 1968), French Guiana (Thomas et al., 2003), and Brazil (Salles & Serrão, 2005). The aim of the present paper is to describe the adults of C. cayumba from reared nymphs. The specimens were collected on rocky substrate of streams, and the adults were obtained by rearing these nymphs in the laboratory. Terms used in descriptions of thorax are in accordance to Kluge (1994). The material examined is housed in the Zoological Collection Norte Capixaba, Universidade Federal do Espírito Santo, São Mateus, ES (CZNC), Instituto Nacional de Pesquisas da Amazônia, Manaus, AM (INPA), and Entomological Collection of the Universidade Federal de Pernambuco, Recife, PE (UFPE).


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