3,508 research outputs found
Swaminathan, C.S. -- 1958-67 -- Correspondence, Individual -- letter, 1958-06-08
No full textLetter from Swaminathan, C. S. to Sabin, Albert B. dated 1958-06-08.Sabin Collection Fair Use Policy</a
Swaminathan, C.S. -- 1958-67 -- Correspondence, Individual -- letter, 1967-08-26
No full textLetter from Swaminathan, C. S. to Sabin, Albert B. dated 1967-08-26.Sabin Collection Fair Use Policy</a
Swaminathan, C.S. -- 1958-67 -- Correspondence, Individual -- letter, 1958-06-14
No full textLetter from Sabin, Albert B. to Swaminathan, C. S. dated 1958-06-14.Sabin Collection Fair Use Policy</a
Swaminathan, C.S. -- 1958-67 -- Correspondence, Individual -- letter, 1959-02-03
No full textLetter from Sabin, Albert B. to Swaminathan, C. S. dated 1959-02-03.Sabin Collection Fair Use Policy</a
Chlaenius (Lissauchenius) udaipurensis Chanu & Swaminathan, sp. nov.
No full textChlaenius (Lissauchenius) udaipurensis Chanu & Swaminathan sp. nov. (Fig. 9, 23, 37, 52, 66, 88, 89 & 108) Type series. Holotype: 1♂, 25.vii.2016, RCA Campus, Udaipur, Rajasthan, India, 579.5m (24°34’ N Latitude 73°42’ E Longitude), N.Y. Chanu (white label), Chlaenius (Lissauchenius) udaipurensis Chanu & Swaminathan 2016 HOLOTYPE (red label). The holotype is deposited in the Reference Chamber of the Insect Museum, Kushwaha Keet Sangrahalaya (KKS), Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, India. Paratypes (total 52 specimens): 1♀, RCA Campus, Udaipur, Rajasthan, India / 25.vii.2016, Coll. N.Y. Chanu (yellow label); 1♂, RCA Campus, Udaipur, Rajasthan, India / 26.vii.2016, Coll. N.Y. Chanu (yellow label); 1♀, RCA Campus, Udaipur, Rajasthan, India / 29.vii.2016, Coll. N.Y. Chanu (yellow label); 1♂, NRCSS, Ajmer, Rajasthan, India / 25.ix.2016, Coll. N.Y. Chanu (yellow label); 5♂ & 3♀, NRCSS, Ajmer, Rajasthan, India / 26.ix.2016, Coll. N.Y. Chanu (yellow label); 3♀, NRCSS, Ajmer, Rajasthan, India / 26.ix.2016, Coll. R. Swaminathan (yellow label); 1♀, NRCSS, Ajmer, Rajasthan, India / 26.ix.2016, Coll. R. Nagar (yellow label); 8♂ & 12♀, ARS, Bhilwara, Rajasthan, India / 27.ix.2016, Coll. N.Y. Chanu (yellow label); 6♂ & 4♀, ARS, Bhilwara, Rajasthan, India / 27.ix.2016, Coll. R. Swaminathan (yellow label); 6♀, ARS, Bhilwara, Rajasthan, India / 27.ix.2016, Coll. R. Nagar (yellow label). The paratypes are deposited in the Reference Chamber of the Insect Museum, Kushwaha Keet Sangrahalaya (KKS), Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, India. Diagnosis. A single testaceous rounded and subapical spot on each elytron, covering intervals 4 to 8; pronotum ovoid, coarsely and deeply punctate, punctures with short fine hairs, apical angle rounded and basal angle obtuse but not sharp; median tooth of mentum and labrum slightly emarginate at apex; apical segment of maxillary and labial palpi triangular; aedeagus slender, lamella truncate at apex, length of apical portion long. Description. BL = 11.90 mm, HW= 2.38 mm, PL= 2.46 mm, PW= 3.24 mm, EL= 7.24 mm, EW= 4.30 mm Head and pronotum black having coppery metallic lustre in the middle and slight metallic green lustre on lateral sides. Elytra black and spot testaceous. Labrum and mandibles dark brown; labial and maxillary palpi, all parts of leg except coxae, first 3 antennomeres brown; remaining antennomeres and coxae fuscous. Head punctate except disk portion of frons and posterior part of occiput. Few depressed lines near eyes. Labrum slightly emarginate at apical margin, apical angles rounded with some setae; clypeus almost truncate. Frontal fovea shallow. Apical segment of maxillary and labial palpi triangular and truncate at apex. Median tooth of mentum almost truncate at apex with rounded angles. Pronotum ovoid, apical angles rounded and basal angles obtuse but not sharp, lateral margins bordered explanate, more towards base. Surface coarsely and deeply punctate, punctures with short hairs. Median line visible not reaching extremities; basal fovea shallow. Elytra striate punctate; intervals punctate, pubescent. Testaceous spot on elytra rounded, located at 1/3rd from apex covering 4th to 8th interval. Prosternum coarsely punctate; proepisternum sparsely punctate pubescent; prosternal process bordered; mesosternum impunctate medially, punctate laterally; mesepisternum punctate, punctures with hairs; metasternum impunctate medially, punctate pubescent laterally; metepisternum punctate pubescent. Abdominal sternites finely and moderately punctate pubescent; smooth medially wrinkled at sides. Aedeagus slender; median lobe abruptly bent near base; apex of apical lamella truncate; median lobe expand laterally on both sides in dorsal view; length of apical portion long. Remarks. This species is quite similar to C. distigma but differs in the shape of the aedeagus, that is slender and with the median lobe abruptly bending near base, lamella truncate at apex, length of apical portion long and median lobe expanding laterally on both sides in dorsal view. Body size is smaller than that of C. distigma; the elytral spot is almost rounded and is not wavy; basal pronotal angle obtuse and blunt. Additionally, C. udaipurensis consumed significantly more 2nd instar larvae of the noctuid Spodoptera litura (Fabricius, 1775) (the Oriental leafworm moth) than C. distigma (Table 1), indicating a species-specific feeding behaviour. This behaviour distinctly evinced Holling’s Type II response with a decrease in the feeding response to increasing prey density (Fig. 114), and a greater predation efficiency at lower prey density. Etymology. The name of the new species refers to the type locality (Udaipur) from where it was first collected. Species No. of prey provided No. of prey consumed in 24 h Feeding trend (%)Published as part of Chanu, N. Yaiphabi & Swaminathan, R., 2017, Notes on species of the genus Chlaenius Bonelli, 1810 (Coleoptera: Carabidae, Chlaeniini) from four agro-climatic zones of Rajasthan, with description of two new species, pp. 545-566 in Zootaxa 4237 (3) on pages 559-561, DOI: 10.11646/zootaxa.4237.3.5, http://zenodo.org/record/34475
Sambasiva Swaminathan: A tribute
No full textSwaminathan was born on April 20, 1923 at Madras (now Chennai),Tamil Nadu, India. He received his college education at Annamalai University and passed with Honours in Chemistry in 1943. Immediately thereafter, he joined the Indian Institute of Science, Bangalore, where he worked with Prof. P C Guha and was awarded his Associateship of the Institute, equivalent to a Masters degree by thesis
General -- 1952 -- Correspondence, Polio -- letter, 1952-02-26
No full textLetter from Swaminathan, C. S. to Sabin, Albert B. dated 1952-02-26.Sabin Collection Fair Use Policy</a
Chlaenius (Chlaeniellus) pseudotristis Chanu & Swaminathan, sp. nov.
No full text<i>Chlaenius</i> (<i>Chlaeniellus</i>) <i>pseudotristis</i> Chanu & Swaminathan sp. nov. <p>(Figs. 14, 28, 42, 57, 71, 98, 99 & 113)</p> <p> <b>Type series.</b> Holotype: 1♂, 09.v.2015, RCA Campus, Udaipur, Rajasthan, India, 579.5m (24°34’ N Latitude 73°42’ E Longitude), N.Y. Chanu (white label), <i>Chlaenius (Chlaeniellus) pseudotristis</i> Chanu & Swaminathan 2016 HOLOTYPE (red label). The holotype is deposited in the Reference Chamber of the Insect Museum, Kushwaha Keet Sangrahalaya (KKS), Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, Rajasthan, India.</p> <p> <b>Diagnosis.</b> Elytra black with greenish bluish tinge, no fasciae or spots, intervals punctate pubescent; pronotum wider than long, rounded lateral sides, surface confluently coarsely punctate with wrinkles, few setiferous punctures here and there; median tooth of mentum truncate at apex with rounded angles; labrum slightly emarginate at apex; apical segment of maxillary and labial palpi sub-cylindrical and coniform respectively; aedeagus stout, median lobe almost cylindrical, lamella rounded at apex, both sides of median lobe equally tapers towards apex.</p> <p> <b>Description.</b> BL = 13.02 mm, HW= 2.60 mm, PL= 2.74 mm, PW= 3.80 mm, EL= 7.68 mm, EW= 5.84 mm</p> <p>Head and pronotum black with greenish reddish iridescence; elytra black with greenish bluish tinge. Labrum, mandibles, coxae, trochanters and femora dark brown; first 3 antennomeres and tibia pale yellowish brown; remaining antennomeres, maxillary and labial palpi brown. Ventral sternites fuscous.</p> <p>Head dorsal surface confluently coarsely punctate (small punctures); frontal fovea shallow. Labrum slightly emarginate at apex, apical angles rounded with some setae; clypeus slightly emarginate. Apical segment of maxillary and labial palpi sub-cylindrical and coniform respectively, almost dorsoventrally flattened and slightly tapering towards and truncate at apex. Median tooth of mentum truncate at apex with rounded angles.</p> <p>Pronotum quadrate, wider than long, rounded along lateral margins, surface confluently punctate with wrinkles, few punctures with setae here and there, more at basal region; lateral margins bordered, explanate margin rather gently reflexed and increasing in width from apex to base. Basal margin wider than anterior margin; basal angles obtuse but not sharp, apical angles rounded. Median line fine and distinct but do not reach extremities. Basal fovea rounded and deep.</p> <p>Elytra striate punctate; intervals punctate, pubescent and almost flat.</p> <p>Prosternum, proepisternum very finely punctate almost smooth; prosternal process bordered; mesosternum and mesepisternum finely and uniformly punctate; metasternum smooth medially, punctate laterally; metepisternum punctate. Abdominal sternites very finely punctate, almost smooth.</p> <p>Aedeagus stout, almost cylindrical; median lobe gradually bent near base; apex of apical lamella rounded; both sides of median lobe equally tapers towards apex on dorsal view; length of apical lamella very short.</p> <p> <b>Remarks.</b> This species appears similar to <i>C. tristis</i>; but it differs in having more regular, rounded lateral sides of the pronotum, less pubescence on surface and the presence of wrinkles; the colour of the head, pronotum and elytra is black with a greenish tinge, and antennomeres 1 to 3 are pale yellowish brown, the others are brown.</p> <p> <b>Etymology.</b> The name of the new species explains the false resemblance with the species <i>Chlaenius</i> (<i>Chlaeniellus</i>) <i>tristis</i>.</p>Published as part of <i>Chanu, N. Yaiphabi & Swaminathan, R., 2017, Notes on species of the genus Chlaenius Bonelli, 1810 (Coleoptera: Carabidae, Chlaeniini) from four agro-climatic zones of Rajasthan, with description of two new species, pp. 545-566 in Zootaxa 4237 (3)</i> on pages 565-566, DOI: 10.11646/zootaxa.4237.3.5, <a href="http://zenodo.org/record/344753">http://zenodo.org/record/344753</a>
PLATE III. Trigonidium Rambur, 1839. (A–H), Trigonidium humbertianum (Saussure, 1878): A, Male; B, Female; C, Eyesrounded protruding; D–E, Fifth joint of maxillary palpi large and triangular; F, Anterior tibiae with tympanum on both sides; G, Female ovipositor curved, compressed, acute at apex; H, Male sub-genital plate feebly notched at apex. in JHABAR MAL, RAJENDRA NAGAR & R. SWAMINATHAN (2014) Record of Natula matsuurai Sugimoto (Orthoptera: Gryllidae: Trigonidiinae) and other sword-tailed crickets from India. Zootaxa, 3760(3): 458-462.
No full textPLATE III. Trigonidium Rambur, 1839. (A–H), Trigonidium humbertianum (Saussure, 1878): A, Male; B, Female; C, Eyesrounded protruding; D–E, Fifth joint of maxillary palpi large and triangular; F, Anterior tibiae with tympanum on both sides; G, Female ovipositor curved, compressed, acute at apex; H, Male sub-genital plate feebly notched at apex.Published as part of Mal, Jhabar, Nagar, Rajendra & Swaminathan, R., 2014, JHABAR MAL, RAJENDRA NAGAR & R. SWAMINATHAN (2014) Record of Natula matsuurai Sugimoto (Orthoptera: Gryllidae: Trigonidiinae) and other sword-tailed crickets from India. Zootaxa, 3760(3): 458-462., pp. 594-600 in Zootaxa 3796 (3) on page 598, DOI: 10.11646/zootaxa.3796.3.11, http://zenodo.org/record/491536
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