77 research outputs found
Oligonychus Berlese 1886
No full textGenus Oligonychus Berlese, 1886 Oligonychus Berlese, 1886: 24; Pritchard & Baker, 1955: 270; Wainstein, 1960: 203. Type-species: Heteronychus brevipodus Targioni Tozzetti.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on page 263, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
Schizotetranychus colocasiae Ehara and Tho 1988
No full textSchizotetranychus colocasiae Ehara and Tho, 1988 This species was only known from Malaysia where it was found on Colocasia sp. Specimens examined. Three females and 3 males on Colocasia esculenta (L.) Schott (Araceae), Amphoe Phutthamonthon, Nakhom Pathom province, Thailand, 23 / 12 / 2011, Leg. H.H. Naing and A. Chandrapatya.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on page 258, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
Eotetranychus Oudemans 1931
No full textGenus Eotetranychus Oudemans, 1931 Eotetranychus Oudemans, 1831: 224; Pritchard & Baker, 1955: 138. Type-species: Trombidium tiliarium Hermann.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on page 258, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
Schizotetranychus Tragradh 1915
No full textGenus Schizotetranychus Trägrådh, 1915 Schizotetranychus Trägrådh, 1915: 277; Pritchard & Baker, 1955: 225–227; Wainstein, 1960: 166; Meyer, 1974: 163; Tuttle, Baker & Abbatiello, 1976: 64. Type-species: Tetranychus schizopus Zacher.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on page 258, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
Oligonychus sacchari McGregor 1942
No full textOligonychus sacchari McGregor, 1942 In Asia this species was previously recorded from India (Gupta & Gupta 1994). Specimens examined. Two females and 3 males on Cymbopogon citratus (DC.) Stapf (Poaceae), Phetchaburi province, Thailand, 18 /05/ 2011, Leg. H.H. Naing.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on page 263, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
Tetranychus Dufour 1832
No full textGenus Tetranychus Dufour, 1832 Tetranychus Dufour, 1832: 276; Pritchard & Baker, 1955: 373; Wainstein, 1960: 149; Tuttle & Baker, 1968: 124; Meyer, 1974: 216. Type-species: Tetranychus lintearius Dufour.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on page 263, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
FIGURES 15–16 in New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand
No full textFIGURES 15–16. Tetranychus (T.) occultaspina sp. nov., female. 15, dorsal aspect; 16, triangular lobes on dorsal striae.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on page 264, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
Factors Influencing Competitive Advantage at AYA Myanmar Life Assurance Co.,Ltd ( Myint Thet Htar Naing, 2025)
No full textThis study examines the factors influencing competitive advantage at AYA
Myanmar Life Assurance Co., Ltd. Primary data were collected from 65 employees, selected
from a total of 78 employees at the supervisor level and above, using the Taro Yamane
(1967) sampling formula. A quantitative research approach was adopted, with data gathered
through structured questionnaires. The sampling technique employed was simple random
sampling. Multiple regression analysis was performed to assess the effect of product
innovation, distribution channel efficiency, technological advancements, and cost
leadership on the company competitive advantage. The findings from the regression analysis
indicate that technological advancements and distribution channel efficiency have
significant positive effects on competitive advantage, whereas product innovation and cost
leadership are found to have an insignificant effect. Based on these results, it is
recommended that AYA Myanmar Life Assurance Co., Ltd. continue prioritizing
investments in advanced technologies, including upgrading core insurance software and
implementing digital tools such as mobile applications and online portals. Additionally,
optimizing distribution channel efficiency is essential for enhancing the company's
competitive position. The company should focus on improving communication across direct
sales, agency channels, and partnerships, as well as enhancing the integration of these
channels to improve product delivery and customer accessibility
Schizotetranychus krungthepensis Naing, Chandrapatya, Navajas & Auger, 2014, sp. nov.
No full textSchizotetranychus krungthepensis sp. nov. Naing & Auger (Figures 1–14) Type-specimens. Holotype (male), 2 male and 4 female paratypes on 7 preparations from sugarcane (Saccharum officinarum L.) (Poaceae), Ram Intra, Bangkok, Thailand, 17 / 11 / 2010, Leg. H. H. Naing. Holotype, 1 male and 3 female paratypes deposited in the Insect Museum of Department of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; 1 male and 1 female deposited in the collection of the Centre de Biologie pour la Gestion des Populations (CBGP), coll. Auger-Migeon N° 1819 -1820, 34988 Montferrier-sur-Lez, France. Diagnosis. Female idiosoma oval-shaped, with transverse dorsal hysterosomal integument striae on dorsocentral area, dorsocentral hysterosomal setae about as long as longitudinal distance to base of seta next behind, genital area provided with genital flap and area anterior to it bearing transverse striation and with 7 tactile setae and 1 solenidion on tibia I. End of peritreme hooked. Male aedeagus bent dorsad with slender distal part slightly curved caudad. FIGURES 1–2. Schizotetranychus krungthepensis sp. nov., female. 1, dorsal aspect; 2, lobes on dorsal striae between f 1 and h 1 setae (enlarged). Description. Male: Holotype 320 µm long, 2 males measured, 314–378 µm long (including gnathosoma). Dorsum. Dorsal body setae short, subequal in length, sc 1 the longest. Except for sc 2 and c 3 setae, dorsal setae widened in their proximal portion. Dorsocentral setae c 1, d 1, e 1, f 1, and sc 1 the most widened, f 2 and h 1 setae poorly widened proximally: v 2 28 (29–31); sc 1 33 (32–35); sc 2 23 (22–23); c 1 28 (31–32); c 2 22 (23–27); c 3 26 (25); d 1 28 (29–31); d 2 22 (23–27); e 1 25 (26–28); e 2 21 (21–24); f 1 25 (25–28); f 2 23 (21–23); h 1 22 (22–25). Gnathosoma. Palptarsus terminal sensillum between two and two and half times as long as broad, 4.7–5 µm long, 1.9–2.5 µm wide. Peritreme hooked distally. Venter. Ventral striae without lobes. Legs. Empodia I–IV similar, composed of two claws without appendant hairs. Leg setal counts as follows: I 2 − 1 − 10 [9] − 5 [4] − 7 + (2) – 10 + (1) + 2 duplexes; II 2 − 1 – 6 – 5 – 5 + (1) − 9 + (1) + 1 duplex; III 1 − 1 − 2 − 3 – 4 – 7 + (1); IV 1 − 1 − 2 – 3 / 2 – 5 − 7 + (1). One tactile setae proximal to proximal duplex on tarsus I, one solenidion at or near proximal duplex level. One tactile setae and one solenidion proximal to duplex of tarsus II. Aedeagus. Bent dorsad at right angle with shaft dorsal margin, abruptly tapering, with acute tip pointing caudad. Female: 4 females measured. Idiosoma: length 475–524 µm (including gnathosoma), width 260–285 µm. Dorsum. Dorsal body setae widened near base, tapering distally not well exceeding base of seta next behind but barely reaching base or about as long as longitudinal interval to base of seta next behind (variations of 4 paratypes): v 2 (50–53); sc 1 (48–51); sc 2 (41–44); c 1 (44–49); c 2 (41–45); c 3 (56–58); d 1 (46–49); d 2 (42–45); e 1 (44–48); e 2 (42–44); f 1 (44–46); f 2 (44–46); h 1 (49–52). Setae sc 2 and c 3 not widened proximally, obviously pubescent, h 1 slightly broadened proximally and distally pubescent. Other dorsal setae widened proximally, e 2 and f 2 less widened basally. Distances between setae: c 1 - c 1 44–49; d 1 - d 1 46–49; e 1 - e 1 44 –48; c 1 - d 1 44–48; d 1 - e 1 43 –49. Hysterosomal striation transverse with rounded to oblong lobes, most of them wider than tall. Gnathosoma. Palptarsus spinneret about 1.5 as long as broad, 5.2–5.4 µm long, 3.4–3.5 µm wide. Peritreme hooked distally. Venter. Ventral striation without lobes, genital flap and area immediately anterior to it bearing transverse striation. Two pairs of ventrocaudal (h 2-3) and two pairs of pseudanal setae (ps 1-2) present. Legs. Empodia I–IV similar, as in male. Leg setal counts as follows: One tactile setae proximal to proximal duplex on tarsus I, one solenidion at or near proximal duplex level. One tactile setae proximal to duplex of tarsus II, no solenidion present. Etymology. The species designation krungthepensis is named after the location where the specimens were found, in Krungthep, meaning the City of Angels, the Thai name for capital city, Bangkok. Biological observations. The adult females are yellowish green in colour with two pairs of maculae. Eggs are white translucent becoming yellow with age. This species produces web-nests (Saito 1983) on the under-surface of the leaves. Remarks. Schizotetranychus krungthepensis n. sp. and five other species belong to the 8 th group of Schizotetranychus (Flechtmann 2012). In this group, the new species can be separated from Schizotetranychus andropogoni (Hirst) by the shape of the distal part of the peritreme (hooked distally in S. krungthepensis n. sp. vs. dilated distally and straight in S. andropogoni), by the distal part of the aedeagus (thinner in its distal portion and tapering distally in S. krungthepensis vs. wider and not tapering distally in S. andropogoni), by the spinneret size (about 2–2.5 and 1.5 as long as broad in male and female of S. krungthepensis n. sp., respectively, whereas three times as long as wide and slightly longer than wide in male and female of S. andropogoni, respectively). In addition, the fine appendant hairs observed in the empodium of S. andropogoni by Ehara & Wongsiri (1975) are absent in S. krungthepensis n. sp. The new species differs from S. camur Pritchard & Baker by the male spinneret (absent in males of S. camur), by the overall appearance of the aedeagus (despite a similar sigmoid shape in the two species, the upturned part of the aedeagus of S. camur does not gradually narrow as in S. krungthepensis n. sp.) and by the leg setal counts. It can be distinguished from S. paraelymus Feres & Flechtmann by the shape of the distal end of the peritreme (slightly bent in S. paraelymus), by the anterogenital striation (irregularly longitudinal in S. paraelymus), by the size and the shape of the palptarsus terminal sensillum (cylindrical in S. paraelymus) and by the leg setal counts. It can be separated from S. undulatus (Beer & Lang) mainly by the shape of the end of the peritreme (only bent in S. undulatus) and by the shape of the aedeagus (upturned part bent at an angle of about 45 ° and distal part not curved caudad with a right angle in S. undulatus). The last species of the group 8, S. youngi Tseng, can be easily distinguished from S. krungthepensis n. sp. by its aedeagus strongly Sshaped.Published as part of Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2) on pages 258-263, DOI: 10.11646/zootaxa.3802.2.7, http://zenodo.org/record/22459
Tetranychus (Tetranychus) truncatissimus Naing, Chandrapatya, Navajas & Auger, 2014, sp. nov.
No full text<i>Tetranychus</i> (<i>Tetranychus</i>) <i>truncatissimus</i> sp. nov. Naing & Auger <p>(Figures 33–51)</p> <p> <b>Type-specimens.</b> Holotype (male), 2 males and 9 females on 12 preparations from <i>Bambusa multiplex</i> (Lour.) Raeusch. ex Schult. (Poaceae), Khet Chatuchak, Bangkok, Thailand, 19/10/2010, Leg. H. H. Naing, A. Chandrapatya, P. Maneesakorn. Holotype, 1 male and 8 female paratypes deposited in the Insect museum of Department of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; 1 male and 1 females deposited in the collection of CBGP, coll. Auger-Migeon N° 1825–1826, 34988 Montferrier-sur-Lez, France.</p> <p> <b>Diagnosis.</b> This species is a <i>Tetranychus</i> (<i>Tetranychus</i>) assigned into the sixth group (Flechtmann & Knihinicki 2002). In this group (female tarsus I with proximal pair of duplex setae in line with 3 tactile setae, one tactile setae proximal to the proximal duplex and female empodium with obvious dorsomedian spur), this species can be separated from its allied species by the shape of the male aedeagus.</p> <p> <b>Description. Male</b>: Holotype 303 µm long, 2 males measured, (324–329) µm long (including gnathosoma).</p> <p> Dorsum. Dorsal body setae long (length of holotype and variations of 3 paratypes): <i>v</i> 2 44 (43–47); <i>sc</i> 1 82 (80); <i>sc</i> 2 55 (56–59); <i>c</i> 1 62 (66); <i>c</i> 2 62 (66–68); <i>c</i> 3 57 (65–66); <i>d</i> 1 68 (64–69); <i>d</i> 2 72 (66–68); <i>e</i> 1 60 (60–63); <i>e</i> 2 58 (63–68); <i>f</i> 1 38 (39–46); <i>f</i> 2 38 (35–38); <i>h</i> 1 20 (19). Lobes present on dorsal striation (poorly developed in our mountings thus their shape was not recognizable).</p> <p>Gnathosoma.Palptarsus terminal sensillum about 2.2 times as wide as broad, 4.5–4.6 µm long, 2–2.1 µm wide. Peritreme hooked distally.</p> <p>Venter. Ventral striae without lobes.</p> <p>Legs. Empodia I–IV each with obvious dorsal spur; more prominent on empodium I, smaller on empodium II and less prominent on empodia III and IV. Empodium I claw-like (uncinate), empodia II–IV each with proximoventral hairs long and free. Leg setal counts as follows:</p> <p>I 2 − 1 − 10 − 5 − 9 + (4) – 13 + (3) + 2 duplexes; II 2 − 1 – 6 – 5 – 7 − 13 + (1) + 1 duplex; III 1 − 1 − 4 − 4 – 6 – 9 + (1);</p> <p>IV 1 − 1 − 4 − 4 – 7 − 10 + 1.</p> <p>Aedeagus. Aedeagal shaft bent dorsad at nearly right angle. Neck very short. Aedeagal knob axis forming an angle about 40° with shaft dorsal margin. Aedeagal knob small (1.9 µm in holotype), asymmetrical, with rounded anterior projection and pointed duck-beak like posterior projection posterodorsally directed. Shallow depression present on knob dorsal margin between the two projections.</p> <p> <b>Female:</b> 9 females measured. Idiosoma: length 407 – 500 µm including gnathosoma, width 240–295 µm.</p> <p> Dorsum. Dorsal body setae lanceolate, longer than distances between bases of consecutive setae (variations of 9 paratypes): <i>v</i> 2 64 –71; <i>sc</i> 1 114–127; <i>sc</i> 2 79–94; <i>c</i> 1 97–116; <i>c</i> 2 92–112; <i>c</i> 3 90–107; <i>d</i> 1 95–114; <i>d</i> 2 96–115; <i>e</i> 1 88 –112; <i>e</i> 2 91 –115; <i>f</i> 1 77–97; <i>f</i> 2 70–83; <i>h</i> 1 37–46. Propodosomal striation longitudinal, hysterosomal striation transverse except between bases of <i>e</i> 1 and <i>f</i> 1 setae (longitudinal) leads to form diamond-shaped pattern between these setae.</p> <p>Lobes on prodorsal striation rounded, dorsal hysterosomal striae with rounded to triangularly rounded lobes as tall as broad, wider caudally.</p> <p>Gnathosoma. Palpus with spinneret about one and a half times as long as broad. Peritreme hooked distally.</p> <p>Venter. Genital flap with transverse striation. Area immediately anterior to genital flap with broken longitudinal striae. Rounded lobes present on ventral striation, broader than tall, wider medially. One pair of ventrocaudal and two pairs of pseudanal setae present.</p> <p>Legs. Empodia I–IV each with obvious dorsal spur, more prominent in empodium I (about three quarters the length of proximoventral hairs), smaller in empodium II and gradually less prominent in empodia III and IV. Empodia I–IV each with proximoventral hairs long and free. Leg setal counts as follows:</p> <p>I 2 − 1 − 10 − 5 − 9 + (1) – 13 + (1) + 2 duplexes; II 2 − 1 – 6 – 5 – 7 − 13 + (1) + 1 duplex; III 1 − 1 − 4 − 4 – 6 – 9 + (1);</p> <p>IV 1 − 1 − 4 − 4 – 7 − 10 + (1).</p> <p>Tarsus I with 1 tactile seta proximad to proximal duplex setae, 3 tactile setae more or less in line with proximal duplex, one solenidion at or near proximal duplex level.</p> <p> <b>Etymology.</b> The name of the species designation is the Latin superlative of the species name of <i>T. truncatus</i>, meaning the most truncate.</p> <p> <b>Biological observations.</b> Mites are located on the lower surface of the leaf. The adult females are pale yellow in colour with a pair of dark feeding spots. They produce silk and laid translucent eggs becoming yellowish with age. The males and the juvenile stages are also pale yellow.</p> <p> <b>Remarks.</b> This new species can be easily separated from other species belonging to the 6th group of <i>Tetranychus</i> (Flechtmann & Knihinicki 2002) by the shape of its aedeagus. However its aedeagus resembles those of two species that belong to the 8th group and one belonging to the 9th group: <i>Tetranychus gloveri</i> Banks, <i>Tetranychus tumidus</i> Banks and <i>Tetranychus merganser</i> Boudreaux respectively. <i>Tetranychus truncatissimus</i> is easily distinguishable from these species by: 1) its body colour, yellow <i>vs.</i> red or carmine, 2) the setal arrangement on the female foretarsus; 3) the size of the female empodial spurs, well developed in <i>T. truncatissimus vs.</i> absent, tiny or small in the above mentioned species; 4) the aedeagal knob, small, posterodorsally directed with an angle of 45° with the axis of the shaft and with a very short neck. With the exception of the tarsus setal arrangement, the body colour and the development of dorsomedian spurs, <i>T. truncatissimus</i> resembles to <i>Tetranychus truncatus</i> Ehara by the shape of its aedeagus. However, in <i>T. truncatissimus</i> the aedeagal hook is shorter than in <i>T. truncatus</i> which was already described as having a truncate hook.</p>Published as part of <i>Naing, Htar Htar, Chandrapatya, Angsumarn, Navajas, Maria & Auger, Philippe, 2014, New species and new records of Tetranychidae (Acarina, Prostigmata) from Thailand, pp. 257-275 in Zootaxa 3802 (2)</i> on pages 269-272, DOI: 10.11646/zootaxa.3802.2.7, <a href="http://zenodo.org/record/224595">http://zenodo.org/record/224595</a>
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