scholarly journals A new distribution record of the gall midge Octodiplosis bispina Sharma (Diptera: Cecidomyiidae) from the Western Ghats of Tamil Nadu, India

2019 ◽  
Vol 11 (14) ◽  
pp. 14906-14907
Author(s):  
Duraikannu Vasanthakumar ◽  
Radheshyam Murlidhar Sharma ◽  
Palanisamy Senthilkumar

Studies on the insect fauna especially gall midges (Diptera: Cecidomyiidae) of Tamil Nadu are relatively less in comparison to the other Indian region. Only fourty eight species of Cecidomyiidae have been reported so far from this region. The present study reports a gall midge,Octodiplosis bispina Sharma, 1987 as a new distributional record from Western Ghats of Tamil Nadu. Previously this species was reported from Aurangabad (Maharashtra) and Andaman Islands. The known distribution of this species now includes Tamil Nadu as well.

2021 ◽  
Vol 13 (9) ◽  
pp. 19380-19382
Author(s):  
Yogesh Koli ◽  
Akshay Dalvi

Melanoneura bilineata Fraser, 1922 is reported for the first time from Maharashtra, India. Previously it was only known from the Kerala and Karnataka states.


2018 ◽  
Vol 5 (1) ◽  
pp. 29-31 ◽  
Author(s):  
B Mufeed ◽  
Manju C Nair

A rare liverwort Gottschelia schizopleura (Spruce) Grolle, of Jungermanniales is discovered from the Western Ghats of Kerala. A brief description with colour plate is provided.


2018 ◽  
Vol 17 (1) ◽  
pp. 21
Author(s):  
Arun Kanagavel ◽  
Sethu Parvathy ◽  
Abhiijth P. Chundakatil ◽  
Neelesh Dahanukar ◽  
Benjamin Tapley

Distribution and habitat associations of the Critically Endangered frog Walkerana phrynoderma (Anura: Ranixalidae), with an assessment of potential threats, abundance, and morphology. Little is known about Walkerana phrynoderma, a frog endemic to the Anamalai Hills of the Western Ghats of India. Baseline information (i.e., distribution, threats, habitat characteristics, activity patterns, and relative abundance) is provided for this species, with the aim of improving our understanding of the status of the species in the wild. Visual-encounter, transect, and time-activity budget surveys were conducted in and around the Anamalai Hills of the Western Ghats. The frog skin was swabbed to determine the presence/absence of Batrachochytrium dendrobatidis, and habitat and environmental characteristics were recorded at sites where W. phrynoderma was found. These data were compared with those of sites apparently lacking this species that had suitable habitat. Walkerana phrynoderma is restricted to evergreen forests between 1300 and 1700 m a.s.l. in the Anamalai Tiger Reserve and at Munnar; thus, its range was extended from the state of Tamil Nadu to the adjoining state of Kerala. Pesticide runoff and human disturbance are the most severe threats to the species; B. dendrobatidis was not detected. This nocturnal anuran prefers forest edges and is associated with well-shaded forest foors in cool areas near freshwater streams. Walkerana phrynoderma is rarely encountered whereas its congener, W. leptodactyla, is more common. The impact of anthropogenic disturbances, especially waste disposal and development of tourism infrastructure, should be evaluated. The land that is owned by the Forest Department peripheral to the protected areas could be designated as eco-sensitive sites to prevent changes in land use that could have an adverse effect on W. phrynoderma.


2015 ◽  
Vol 2 (1) ◽  
pp. 56-62
Author(s):  
Abinaya G ◽  
Paulsamy S

Phytosociological study is the most essential in any community to know its structure and organization. The various qualitative characters obtained are used to determine the level of distribution, numerical strength and degree of dominance exhibited by the constituent species in the community. Thalictrum javanicum belongs to the family Ranunculaceae family, it is medium sized erect herb, found in the temperate Himalayas from Kasmir to Sikkim in Khasi hills, and Kodaikanal and Nilgiri hills of Western Ghats in Tamil Nadu, India. At global level, it is generally distributed in the hilly tracts of India, Srilanka, China and Java at the altitude of around 2400 m above msl. The present study was undertaken in Thottabetta , the Nilgiris by sampling using belt transects of 10x1000m size which further divided into 100 segments each which 10x10m size. The total number of species encountered in the study area is 45 which includes 5 grasses and 40 forbs. The quantitative ecological characters of the study species, T. javanicum is a detailed below: frequency 11%, abundance 3.82 individuals/m2, density 0.42 individuals/m2, basal cover 172.20/mm2/ m2, relative frequency 0.55% and relative density 0.08%, relative dominance 0.16%. Based on the ecological attributes it is determined that the species, T. javanicum is less perpetuated in the community studied. Hence, further studies on the determination of propagation strategies for population enhancement and conservationof wilds are suggested.


2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Valéria Cid Maia

Abstract: Most Neotropical species of Cecidomyiidae (Diptera) have been described from Brazil, but a list of species with occurrence in the country has never been published. Little is known about their distribution and richness in the Brazilian phytogeographic domains. Additionally, a list of host plant species has never been gathered. The present study aims to fill these knowledge gaps and provides an overview of this family in Brazil. For this, data were obtained mainly from the literature, but also from the Cecidomyiidae collection of Museu Nacional and two herbaria (RB and R). Based on the site "Flora do Brasil 2020", botanical names were updated and plant species origin and distribution were verified. A total of 265 gall midge species have been recorded in Brazil, most from the Atlantic Forest (183), followed by Cerrado (60), and Amazon Forest (29). The other phytogeographic domains shelter from five to ten species. Phytophagous gall midges occur on 128 plant species of 52 families, almost all native, being 43 endemic to Brazil (21 endemic to Atlantic Forest, five to Cerrado, and one to Amazon). Although, the taxonomical knowledge is focused on the Atlantic Forest, each domain has its own fauna composition and these informations can be useful for environmental conservational purposes. About 58% of the Brazilian fauna are known only from the type-locality. In order to fill these gaps, it is necessary and important to collect in uninvestigated areas.


Phytotaxa ◽  
2015 ◽  
Vol 231 (3) ◽  
pp. 300
Author(s):  
RAMALINGAM KOTTAIMUTHU ◽  
GUNADAYALAN GNANASEKARAN

During the taxonomic revision of the genus Osbeckia Linnaeus (1753: 345) from the Western Ghats, India, we came across few interesting specimens from the Manjolai hills in Kalakkad Mundanthurai Tiger Reserve (KMTR), Tirunelveli, Tamil Nadu. Critical studies with relevant literature revealed the identity of the collected specimens as Osbeckia tirunelvelica Manickam & Murugan (2001: 626). Unfortunately the name Osbeckia tirunelvelica was not validly published by Manickam & Murugan (2001), because, contrary to Art. 40 of ICN (McNeill et al. 2012), two collections were indicated as “type”. Therefore, the name Osbeckia tirunelvelica is validated here by indicating a single collection as the holotype.


Phytotaxa ◽  
2017 ◽  
Vol 302 (2) ◽  
pp. 193 ◽  
Author(s):  
R. RAMASUBBU ◽  
C. DIVYA ◽  
N. SASI KALA ◽  
ANJANA SURENDRAN ◽  
A.K. SREEKALA

Impatiens megamalayana, a new species from Tamil Nadu, India is described and illustrated. This species is characterized by a ridged stem, ensiform and villous leaves, a wrinkled boat-shaped lower sepal with outwardly curved tip, ornamented seeds and strictly ovate pollen grains. This combination of characters makes determining the relationships of I. megamalayana difficult. The floral structure of I. megamalayana is closely allied to I. herbicola Hook.f. and I. inconspicua Benth. in Wall., the latter with three varieties, but it differs by several unique vegetative and floral features. Impatiens megamalayana is assessed as Critically Endangered in accordance with the IUCN guidelines. The habitat of the species is severely affected by landslides. As a result, effective strategies should be developed to protect I. megamalayana from exinction.


Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 52-54
Author(s):  
RAMALINGAM KOTTAIMUTHU ◽  
PERUMAL MURUGAN ◽  
JOHN KENNEDY JOHN PRAVEEN KUMAR ◽  
MUTHURAMALINGAM JOTHI BASU

The genus Impatiens Linnaeus (1753: 937) contains a wealth of untapped treasures for gardeners and it is one of the mega diverse genera of angiosperms comprise about 1059 species (POWO 2020). According to the recent estimate, India is known to have 250 species and majority of them occur in Eastern Himalayas (Gogoi et al. 2018) and the Western Ghats (Bhaskar 2012). Tamil Nadu is one of the plant-rich states in the country and with 5674 angiosperm taxa, it ranks first among all the states in the country (Lakshminarasimhan et al. 2014).


Zootaxa ◽  
2019 ◽  
Vol 4571 (3) ◽  
pp. 383
Author(s):  
AKSHAY KHANDEKAR

A new species of the gekkonid genus Cnemaspis is described based on a series of nine specimens from near Sankari in Salem district, Tamil Nadu state, southern India. The new species is diagnosable by the following suite of characters: a small-sized Cnemaspis (adult snout to vent length less than 33 mm); heterogeneous dorsal pholidosis consisting of weakly keeled granular scales intermixed with large strongly keeled, conical tubercles, 9–11 rows of dorsal tubercles, 12–17 tubercles in paravertebral rows; spine-like scales absent on flank, 17–20 lamellae under digit IV of pes. Males with 4–6 femoral pores on each thigh, separated on either side by eight poreless scales from four precloacal pores; precloacal pores separated medially by a single poreless scale; two single dorsal ocelli on occiput and between forelimb insertions, two pairs of ocelli on either side just anterior and posterior to forelimb insertions. Cnemaspis agarwali sp. nov. is the fifth endemic species of Cnemaspis from peninsular India outside the Western Ghats and highlights the rich and unique diversity of this understudied region. 


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