A new species of Nigrobaetis Novikova & Kluge, 1987 (Ephemeroptera, Baetidae) from Tamil Nadu, India

Zootaxa ◽  
2022 ◽  
Vol 5091 (1) ◽  
pp. 182-190
Author(s):  
T. SIVARUBAN ◽  
PANDIARAJAN SRINIVASAN ◽  
S. BARATHY ◽  
RAJASEKARAN ISACK

Nigrobaetis klugei sp. nov. is described based on nymphs from the Sastha falls of Western Ghats, Southern India. The nymph of Nigrobaetis klugei sp. nov. can be distinguished from other Oriental species of Nigrobaetis by the following combination of characters: (i) dorsal surface of the labrum with 1+3 long simple stout setae on the distal half; (ii) paraproct distally not expanded, with a reduced number of spines on distal margin (three large and two small spines); (iii) paraglossae slender, approximately as wide as glossae; (iv) absence of medioproximal spots in the abdominal tergites and (v) long and pointed triangular spines at the distal margin of abdominal tergites.  

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. 


2014 ◽  
Vol 71 (1) ◽  
pp. 57-61 ◽  
Author(s):  
S. Karuppusamy ◽  
V. Ravichandran

A new species, Hedyotis rajasekaranii Karupp. & Ravichandran (Rubiaceae), is described from the Megamalai Hills of the Western Ghats in Tamil Nadu, southern India.


Zootaxa ◽  
2021 ◽  
Vol 5061 (1) ◽  
pp. 185-191
Author(s):  
PANDIARAJAN SRINIVASAN ◽  
T. SIVARUBAN ◽  
S. BARATHY ◽  
RAJASEKARAN ISACK

Sparsorythus srokai sp. nov. is described from the Veerapandi River, Theni district, Tamil Nadu, India based on nymphs of both sexes. The nymphs of Sparsorythus srokai sp. nov. can be distinguished by the following combination of characters: i) presence of lateral setae in each segment of caudal filaments, ii) dorsal surface of labrum entirely covered with scattered ribbon-like bristles, iii) posterior margin of mesonotum reaching abdominal segment III in both sexes, and iv) left prostheca with several pointed teeth apically. The new species is compared with other Indian species: S. gracilis Sroka & Soldán, 2008, S. sivaramakrishnani Sivaruban, Srinivasan, Barathy, Rosi & Isack, 2021 and S. nanjangudensis Muthukatturaja & Balasubramanian, 2021. The distributional map and key to the genus Sparsorythus in Southern India are also given.  


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.


Zootaxa ◽  
2021 ◽  
Vol 4915 (2) ◽  
pp. 237-245
Author(s):  
T SIVARUBAN ◽  
PANDIARAJAN SRINIVASAN ◽  
S BARATHY ◽  
M BERNATH ROSI ◽  
RAJASEKARAN ISACK

A new mayfly species, Sparsorythus sivaramakrishnani sp. nov. from the stream of Pullian cholai, Thuraiyur, Namakkal district, Tamil Nadu, India is described based on male and female nymphs. Sparsorythus sivaramakrishnani sp. nov. differs from the closely related S. gracilis by the shape of the left prostheca, the number of bristle-like processes at base of left prostheca, the ratio and shape of right prostheca, the ratio of femur length: width, the size of the female nymph, the mesonotum overlapping in fifth abdominal segment of the female, and by the shape of hypopharyngeal lingua. 


Zootaxa ◽  
2012 ◽  
Vol 3348 (1) ◽  
pp. 63 ◽  
Author(s):  
RALF BRITZ ◽  
ANVAR ALI ◽  
SIBY PHILIP

Dario urops, new species, is described from a small stream of the Barapole tributary of Valapattanam River in southern Karna-taka and from Wayanad District, Kerala. It can be distinguished from its congeners by the presence of a conspicuous blackblotch on the caudal peduncle and a horizontal suborbital stripe, by the anterior dorsal fin lappets in males not being produced beyond fin spines, and by its vertebral count.


Zootaxa ◽  
2020 ◽  
Vol 4729 (2) ◽  
pp. 249-265
Author(s):  
ISHAN AGARWAL ◽  
AARON M BAUER ◽  
SAUNAK PAL ◽  
ACHYUTHAN N SRIKANTHAN ◽  
AKSHAY KHANDEKAR

Two new species of the gekkonid genus Hemiphyllodactylus are described from mountains of the Western Ghats in Tamil Nadu, southern India. Hemiphyllodactylus nilgiriensis sp. nov. and H. peninsularis sp. nov. are > 5 % divergent in the mitochondrial ND2 gene from each other and members of the H. aurantiacus complex and differ from each other and members of the H. aurantiacus complex in several meristic characters and colouration. The description of these two new species takes the number of Indian Hemiphyllodactylus to six and the number of endemic geckos from Tamil Nadu to 15. 


Zootaxa ◽  
2019 ◽  
Vol 4586 (1) ◽  
pp. 162
Author(s):  
M. VASANTH ◽  
C. SELVAKUMAR ◽  
K. A. SUBRAMANIAN ◽  
R. BABU ◽  
K. G. SIVARAMAKRISHNAN

A new species belonging to the subgenus Isonychia, of the genus Isonychia Eaton, 1871, is described based on larvae and imagoes collected from Moyar River, Nilgiri District, Tamil Nadu, India. The imagoes of I. moyarensis n. sp. can be distinguished from other described Oriental species of Isonychia (Isonychia) by the combination of characters: (i) forewing with rusty brown maculae in the costal, subcostal, and median areas; (ii) femur and tibia brown, fore leg pale, apices of tarsal segments brownish; (iii) males with distal angles of penes rounded, without serrations; (iv) second segment of gonostylus uniformly convex; and (v) sterna of tenth abdominal segment in female deeply cleft. Isonychia (Isonychia) moyarensis n. sp. can be distinguished in the larval stage from other known Oriental species by the following combination of characters: (i) abdominal terga II–IX with median dark brown maculae progressively larger with dark brown slanting streaks in lateral margins; (ii) trachea of abdominal gills I–VII unbranched; (iii) posterolateral projections on abdominal segments I–VII blunt and progressively longer than those of segments VIII–IX, sharp and distinct; and (iv) abdominal terga X pale yellow in anterior ⅓, and dark brown in the posterior ⅔. A key to the known larvae of Oriental species of Isonychia is also provided. 


Zootaxa ◽  
2017 ◽  
Vol 4221 (4) ◽  
pp. 491
Author(s):  
R.R. RACHANA ◽  
R. VARATHARAJAN

Thrips laurencei sp.n. is described from specimens collected on flowers of Hydrangea macrophylla in Western Ghats range of Tamil Nadu, India. This new species shows sexual dimorphism in colour, with the females brownish yellow with brown shadings but the males uniformly yellow.  


Phytotaxa ◽  
2020 ◽  
Vol 450 (2) ◽  
pp. 237-242
Author(s):  
RAJU RAMASUBBU ◽  
ANJANA SURENDRAN ◽  
KARUPPA SAMY KASI

Syzygium anamalaianum, a new species from Anamalai Tiger Reserve, Tamil Nadu, India is described. This species is closely allied to Syzygium bharathii and S.caryophyllatum, but differs from it by having thick elliptic or ovate–lanceolate leaves with deeply grooved midrib, 4–angled prominently winged peduncle, smaller flower, funnel or pyriform hypanthium, inwardly curved stamens of varying lengths and obovate or subglobular seeds. This combination of characters makes determining the relationships of Syzygium anamalaianum difficult.


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