126,204 research outputs found
Goniozus inauditus Santhosh, sp. nov.
No full textGoniozus inauditus Santhosh sp. nov. (Fig 2) Material examined. Holotype ♀,. ‘ INDIA: Karnataka, Sringeri, Souwpnabitta, 13 ° 23.59 'N 75 ° 47.30 'E, 689 msl, 227. iv. 2007, rearing, ex. Crotonothrips sp. induced leaf galls on Memecylon umbellatum, Moist Deciduous Forest, Community Managed Forests, M. Nasser, leg., VRN 160 (ZSIK)’. Paratypes. 1 ♀, ‘ INDIA: Kerala, Areyadatupalam, 1 km E Kozhikode, 11 ° 16.16 'N 75 ° 47.30 'E, 8 msl, 22.iv. 2006, K. Bindu leg., VRN 131 ’; 1 ♀, Malappuram, Thenjipalam, 11 °07.44'N 75 ° 53.44 'E, 67 msl, 6.viii. 1988, T.C. Narendran leg., VRN 114 ’ (ZSIK); 1 ♀, ‘ INDIA: Kerala, collection locality unknown, 2–6.i. 1993, unknown leg., VRN 16 ’ (ZSIK). Diagnosis. Head distinctly longer than wide (Fig. 2 C), WH 0.83–0.85 × LH; compressed in lateral aspect (Fig. 2 B), 1.72 × as long as wide; frons and vertex strongly coriaceous, with scattered shallow punctures (Fig. 2 C); gena smooth and polished; malar space distinct (Fig. 2 B); malar groove present; eye sparsely setose, setae as long as diameter of single facet; posterior ocelli contiguous with vertex margin; ocelli in obtuse triangle; OOL 1.09–1.1 × WOT; WF = HE; EV 0.47–0.55 × HE; antero-median smooth propodeal triangle absent; median smooth longitudinal stripe not elevated, extending to posterior margin of propodeal disc, wider in posterior half (Fig. 2 D); forewing with subtriangular areolet (Fig. 2 F), vein M, SM profusely setose; profemur 1.92 × as long as wide. Description. Female (holotype) Length 3.08 mm; FWL 1.66 mm. Colour. Body brown to black, abdomen brown at apex; mandible, teeth dark brown; antenna yellow, terminal final segments light brown; coxae, femora light brown, other segments yellow, wing hyaline; prostigma, pterostigma, costa, subcosta light brown, other veins straw coloured. Head. Head distinctly longer than wide, WH 0.85 × LH; 1.72 × as long as wide in lateral aspect; frons and vertex strongly coriaceous, with scattered shallow punctures (Fig. 2 C); gena smooth and polished; vestiture moderately long, 0.06 mm; profuse, decumbent; setae on vertex distinctly longer than setae on head, longest being 0.15 mm; anterior clypeal margin strongly produced, bluntly angulated, acute; clypeal carina 0.73 × HE, strong, arcuate in profile, extending onto front as low carina slightly beyond posterior scrobal margin; scrobe carinate; mandible stout with four short, blunt teeth, ventral most straight and longest; WF 0.48 x LH; WF = HE; EV 0.5 × HE; LH 1.74 × HE; malar space distinct; malar groove present; eye sparsely setose, setae minute, as long as diameter of single facet; ocelli in obtuse triangle; posterior ocelli contiguous with vertex margin; OOL 1.09 × WOT; POL: AOL: DAO = 4: 2: 2; vertex straight in full dorsal view, acutely, smoothly curving to occiput, ecarinate; relative lengths of first five antennal segments in ratio of about 7: 3.5: 2.5: 3: 3; scape 1.4 × as long as wide, 2 × as long as pedicel; pedicel longer than F 1; F 1 segment as long as wide; F 2 –F 7 wider than long; F 8 –F 9 as long wide; F 10 –F 11 longer than wide; antenna slightly shorter than head in full dorsal view (25: 27) (Fig. 2 C). Mesosoma. Pronotum, mesonotum, and scutellum strongly coriaceous uniformly (Fig. 2 D); vestiture long, profuse, decumbent; sparse on scutellum, mesonotum; pronotal disc 0.55 × as long as wide; mesonotum with complete parapsidal furrow (Fig. 2 D); notauli absent; scutellum with a pair of slits at base connected by one weak narrow groove; propodeal disc 0.55 × as long as wide, smoothly inclined to lateral margin; basal median smooth triangle absent; median smooth longitudinal band not elevated, extending to posterior margin of propodeal disc, wider in posterior half; rest of propodeal disc and declivity strongly coriaceous; transverse propodeal carina medially interrupted broadly (Fig. 2 D); forewing 2.8 × as long as wide; areolet present, subtriangular in shape (Fig. 2 F); vein M, SM profusely setose, areolet sparsely setose; speculum profusely setose; profemur 1.92 × as long as wide; SI 10.74. Metasoma. Tergites completely smooth and polished (Fig. 2 E); T 1 –T 3 with few setae restricted to lateral margin; other tergites sparsely setose all across dorsal side; metasoma distinctly longer than mesosoma, shorter than head plus mesosoma (Fig. 2 A). Male. Unknown. Ecology and Biology. Ex. leaf galls on Memecylon umbellatum Burm. f. (Melastomaceae) induced by Crotonothrips sp. (Fig. 3 A) (Raman & Ananthakrishnan 1985); associate host: Carpelimus sp. (Staphylinidae) (Fig. 3 B). Etymology. The species epithet is after the Latin word inauditus meaning new. Variation. See table 1 for the morphometric ratios of the type materials examined. Distribution. India (Karnataka; Kerala). Discussion. Goniozus inauditus Santhosh sp. nov. comes close to G. nephantidis (Muesebeck), but differ in having ocular setae as long as diameter of single facet, scape 2 × pedicel, WF = HE, EV 0.62 × HE, mandible black brown and antenna shorter than head in full dorsal view (Fig. 2 C), whereas in G. nephantidis ocular setae 2 × as long as diameter of single facet, scape longer than 2 × pedicel, WF 1.15–1.20 × HE, EV 0.36–0.47 × HE, mandible black and antenna longer than head in full dorsal view.Published as part of Santhosh, Shreevihar & Ranjith, Avinjikkattu Parambil, 2015, Descriptions of two new Species of Goniozus Förster, 1856 (Hymenoptera: Bethylidae) associated with insect induced plant galls from India, pp. 192-200 in Zootaxa 4039 (1) on pages 193-196, DOI: 10.11646/zootaxa.4039.1.10, http://zenodo.org/record/23708
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Baburia chettalliensis Shashank and Santhosh 2022, n. sp.
No full textBaburia chettalliensis Shashank and Santhosh, n. sp. (Figs. 3, 6, 8, 10, 14–17) urn:lsid:zoobank.org:act: 6C705E2F-0949-4CB6-B618-E720CF724EBE Diagnosis. This new species is similar to B. trachymelas in male genitalia. In B. chettalliensis the uncus long, broad abruptly bent medially, valva relatively smaller and more convex medially than later species, socii not prominent, tegumen subtriangular broader at base and apex narrower, juxta large. In contrast, in B. trachymelas uncus is small, bent basally, valva broader and weakly convex medially, socii is prominent with bristles, tegumen is broad, subrecatnagular, juxta is relatively smaller. B. chettalliensis also close resemblance of B. tinsukiaensis but uncus is short, obliqually bent and broad medially in later species whereas uncus is long, uniform width thought the length in B. chettalliensis. Juxta larger, anellus narrow cup-shaped in B. chettalliensis whereas juxta relatively smaller, anellus wide and cup-shaped in B. tinsukiaensis. Gnathos membranous in B. tinsukiaensis whereas moderately sclerotized in B. chettalliensis. Description. Head: Ocellus well developed. Vertex clothed with anterior and forward projected grey scales. Frons with small appressed upwardly projected light grey scales. Labial palpi three segmented, first segment short and broad, grey, tinged with brown, second segment long and curved, cream, interspersed with light grey along dorsal margin from base to near apex, small third segment grey. Antenna filiform, covered with grey scales with intersegmental short cilia. Chaetosema present. Thorax: Pronotal collar, tegulae, mesonotum, and posterior crest creamy, mixed with dark greyish brown scales; mid- legs with a pair of tibial spurs; hindtibia covered with dense, pearl white scales interspersed with light grey scales, inner margin with tuft of long snow-white scales in male hair pencil, originating from base of hindtibia (Fig. 10). Wings: Forewing subrectangular, broad, wing span 18 mm in male. Male forewing weakly sinuate and slightly convex in outer half, with cream-orange scales as background interspersed with dark grey; costal margin with 7–8 dark grey, narrow, striae alternating with patches of mustard-yellow, with median inverted subtriangular grey spot, suffused with pale cream. Hindwing subtriangular, dark brown, anal margin in male with a modified, long, sclerotized, elongated lobe without scales (Fig. 8). Abdomen: Covered with brownish grey scales dorsally, mustard yellow ventrally and abdominal tuft in male also mustard yellow. Male genitalia (Fig. 14–17): Tegumen subtriangular, dorsolaterally with rounded shoulders, inner margin strongly sclerotized; uncus moderately long, sclerotized, abruptly bent and broad medially and narrow towards apex; socius atrophied; gnathos moderately sclerotized, medially concave and connected to membranous anellus, gnathal hooks absent; vinculum moderately sclerotized; valva symmetrical, long and slender, membranous, costa medially bulged out and covered with cluster of bristles and a prominent strongly sclerotized spine; juxta large, subtriangular, with broader apex; anellus cup-shaped and narrow; transtilla sclerotized, transtilla process well developed; caulis moderately large; sacculus basally and medially broad, with moderately dense sockets basally, continued as row of short setae reaching base of cucullus, medially with patch of dense setae from margin of basal opening to base of cucullus, dorsal margin with large hump bearing a conspicuous tuft of long bristles; cucullus long, dorsal margin slightly curved, apical margin sinuate, narrow at apex, with rounded elbow at base, covered with mixture of dense, short setae and long spiniform setae except for dorsal and dorsoapical margins, with a large, strong spine at ventroapical margin. Aedeagus short and broad, without any cornuti. Female unknown. Material studied. Holotype. ♂, India: Chettalli, Kodagu, Karnataka, 12° 37’ 13’’ N, 75° 83’ 01’’ E, 1002 m, 19 Nov 2014, Shashank, P. R., mercury vapour lamp coll., deposited in National Pusa Collection (NPC), genitalia slide no. L00050395. Etymology. The species is named after type locality, Chettalli, Kodagu, Karnataka, India Distribution: Karnataka (India).Published as part of Naik, Santhosh & Shashank, P. R., 2022, Description of two new species of the genus Baburia Koçak, 1981 (Lepidoptera: Tortricidae: Olethreutinae) from India, pp. 173-181 in Zootaxa 5091 (1) on pages 175-178, DOI: 10.11646/zootaxa.5091.1.7, http://zenodo.org/record/584071
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
PLATE 1 in Lectotypification and further notes on the identity of Commelina hirsuta, an endemic Indian species of Commelinaceae
No full textPLATE 1. Commelina hirsuta (Wight) Beddome: a. Habit (inset Habitat—grasslands of Meenbani in Silent Valley); b. Flowering shoots— see the pilose leaves & spathes; c. Definite base & thick roots of the plant; d. Capsule—see the indehiscent dorsal locule & aborted seeds in ventral locules; e. Seeds—ventral and dorsal views (all from Manudev & Santhosh Nampy 135148).Published as part of Nampy, Santhosh & Joseph, Sheba M., 2014, Lectotypification and further notes on the identity of Commelina hirsuta, an endemic Indian species of Commelinaceae, pp. 291-295 in Phytotaxa 174 (5) on page 292, DOI: 10.11646/phytotaxa.174.5.6, http://zenodo.org/record/515168
FIGURE 1 in Burmannia munnarensis (Burmanniaceae) a new species and rediscovery of B. indica after 110 years from southern Western Ghats, Kerala, India
No full textFIGURE 1. Burmannia munnarensis Dani & Nampy sp. nov., A. Habit; B. Scale leaf; C. Bract; D. Single flower; E. Upper part of flower split open showing perianth lobes and stamens; F. Outer perianth lobes; G. Inner perianth lobes; H. Stamen, see the two lateral thecae, apical crests and basal spur; I. Gynoecium; J. Seeds. (Drawn by Dani Francis from Dani Francis, Vishnu Mohan & Santhosh Nampy 173331).Published as part of Francis, Dani, Mohan, Vishnu, Venugopal, Divya K. & Nampy, Santhosh, 2021, Burmannia munnarensis (Burmanniaceae) a new species and rediscovery of B. indica after 110 years from southern Western Ghats, Kerala, India, pp. 105-112 in Phytotaxa 507 (1) on page 107, DOI: 10.11646/phytotaxa.507.1.6, http://zenodo.org/record/542554
FIGURE 1 in Eriocaulon pandeyana (Eriocaulaceae), a new species from southern Western Ghats, India
No full textFIGURE 1. Eriocaulon pandeyana: A. Habit; B. Head; C. Involucral bracts; D. Floral bracts; E. Male flowers; F. Male sepals; G. Male petals; H. Stamens; I. Female flower; J. Female sepals; K. Female petals; L. Pistil; M. Seeds (from Santhosh Nampy & Vishnu Mohan 188713) Photos by Harishma K.H.Published as part of Harishma, Kuttukaran Haridasan, Mohan, Vishnu & Nampy, Santhosh, 2022, Eriocaulon pandeyana (Eriocaulaceae), a new species from southern Western Ghats, India, pp. 273-279 in Phytotaxa 539 (3) on page 275, DOI: 10.11646/phytotaxa.539.3.6, http://zenodo.org/record/636418
PLATE 1. Commelina andamanica S.M. Joseph & Nampy. A in The genus Commelina (Commelinaceae) in Andaman & Nicobar Islands, India with one new species and three new records
No full textPLATE 1. Commelina andamanica S.M. Joseph & Nampy. A. Habit; B. Cincinnus; C. Spathe; D. Sheath apex showing white hairs; E. Flower; F. Calyx and Corolla; G. Sepals; H. Lateral stamen; I. Medial stamen; J. Staminode; K. Gynoecium; L. Seeds-ventral & dorsal views (all from Sheba M. Joseph & Santhosh Nampy 4560).Published as part of Nampy, Santhosh, Joseph, Sheba M. & Manudev, K.M., 2013, The genus Commelina (Commelinaceae) in Andaman & Nicobar Islands, India with one new species and three new records, pp. 19-29 in Phytotaxa 87 (2) on page 22, DOI: 10.11646/phytotaxa.87.2.1, http://zenodo.org/record/481499
Flutter mitigation of turbofan blades using viscoelastic patches
No full textFlutter as a self-feeding aeroelastic instability presents one of the biggest challenges in aero-engine designsto improve its aerodynamic and structural performance. This work presents a detailed feasibility study ofusing different viscoelastic patches as Constrained Layer Damping (CLD) enhancement for an aero-enginefan blade to reduce potential flutter risks. The static and dynamic responses of the different materials andconfigurations (thicknesses, layers and locations) are evaluated on both cruise and take-off/landingconditions. It is found that a double bi-layer 3M® ISD110 is the optimal choice of material for the CLDtreatment for the fan blade. The study also shows that an optimal CLD treatment of 15 % total surface areaof the blade at the root demonstrated a 36 % reduction in resonance amplitudes across the first six modes
FIGURE 1 in Madhuca balakrishnanii (Sapotaceae), a new species from Kerala, India
No full textFIGURE 1. Madhuca balakrishnanii: A. Habit, B. Stipule, C. Leaves, D. Twig with flowers and fruits, E. Single flower, F. Calyces and style, G. Outer sepal, H & I. Inner sepal-outer and inner view, J. Petal, K. View of stamens and petals, L. Single stamen, M. Ovary, N & O. T.S.of ovary showing ovules, P. Seeds, Q. Fruiting twig. (Photographs by E.S. Santhosh Kumar)Published as part of Kumar, Ettickal Sukumaran Santhosh, Shailajakumari, Sreedharan & Shareef, Sainudeen Muhammed, 2021, Madhuca balakrishnanii (Sapotaceae), a new species from Kerala, India, pp. 78-82 in Phytotaxa 510 (1) on page 80, DOI: 10.11646/phytotaxa.510.1.8, http://zenodo.org/record/542629
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