16,407 research outputs found
The Conversational Quality of Literature: An Interview with Neel Mukherjee
No full textNeel Mukherjee, author of The Lives of the Others and A State of Freedom talks about his education, his readings, his career as a reviewer and lately as a novelist. He discusses some of the issues brought up by his novels, such as capitalism, the predicament of the have-nots, and literary influences
Demicryptochironomus (Demicryptochironomus) praeacutus Mukherjee et Hazra 2022, sp. n.
No full textDemicryptochironomus (Demicryptochironomus) praeacutus Mukherjee et Hazra, sp. n. urn:lsid:zoobank.org:act: F48E2EBE-70ED-4E3F-B96B-231DD922E9F3 GenBank Accession No. ON898600 Material examined. Holotype male, labelled ‘ Holotype Demicryptochironomus (Demicryptochironomus) praeacutus sp. n., India, Assam, Kohora [26.15° N, 91.79° E], 16.iv.2022, Coll. B. Khan’. Paratypes 2 males, same data as holotype, labelled ‘ Paratype Demicryptochironomus (Demicryptochironomus) praeacutus sp. n. Paratype 1 male, labelled ‘ Demicryptochironomus (Demicryptochironomus) praeacutus sp. n., India, West Bengal, Burdwan [23.2441319° N, 87.8368799° E], 17.ix.2019, Coll.B. Mukherjee’. Paratype 1 male, labelled ‘ Demicryptochironomus (Demicryptochironomus) praeacutus sp. n., India, West Bengal, Burdwan [23.2393° N, 87.8512° E], 14.x.2019, Coll. B. Mukherjee’. Paratypes 4 males, labelled ‘ Demicryptochironomus (Demicryptochironomus) praeacutus sp. n., India, West Bengal, Burdwan [23.2393° N, 87.8512° E], 16.vii.2020 & 10.i.2021, Coll. N. Hazra’. Diagnostic characters. The adult male is distinguished from other species of the genus Demicryptochironomus by the presence of tapered gonostylus with pointed apex and bilobed or trilobed superior volsella having clubbed apical end. Etymology. The name “ praeacutus ’’, a Latin word, refers to the sharply pointed gonostylus at apex. Male (n=9) Total length 2.8–3.2, 3 mm. Wing length 1.65–1.7, 1.675 mm. Costal length 1.57–1.62, 1.59 mm. Antennal length 0.88–0.91, 0.895 mm. Colouration. Thorax yellowish brown, leg colour light brown, abdomen yellow to light brown. Head. Head width 570–580, 575 µm. Temporal setae 7–11 (IV 2, OV 5–6, Po 0–2). Clypeal setae 12–15. Frontal tubercles present, 6.9 µm long. Eyes bare with dorsomedial extension of 119–130, 124.5 µm. Ultimate flagellomere 570–590, 580 µm long; AR 1.7–1.93, 1.82. Length of palpomeres (I–V) (µm): 25–27.6: 30: 94–97.5: 134.6–138: 165.6. CA 0.64–0.66, 0.65. Thorax. Acrostichals 10–12, dorsocentrals 24, prealars 3, supraalars 2 and scutellars 9–10. Wing (Fig. 1A). VR 1.10–1.11. R with 36 setae, R 4+5 with 26 setae. Brachiolum with 2 setae. Squama with 6 fringed setae. FCu distinctly distal to RM. Anal lobe moderately developed. Legs. Fore tibia with 2–3 setae. Mid legs with 2 tibial spurs; 18.4–20.7 µm and 23 µm long, comb with 28–36 teeth. Hind leg with 2 tibial spurs; 25.3 µm and 27.6–29.9 µm long, comb with 50–52 teeth. Lengths (µm) and proportions of legs shown in table 1. Hypopygium (Figs. 1B–D). Anal tergite band V shaped. Anal point slender, parallel sided; 46–48, 47 µm long, 6.9 µm wide.Anal point bearing 2–3 lateral setae on each side. Tergite IX with 16–18 setae. Transverse sternapodeme 64.5–69, 66.75 µm long. Superior volsella (Fig. 1D) nearly bilobed or trilobed, apically pommel in shape, bearing 3 long setae and microtrichia; 46 µm long and 11.5 µm wide at apex. Inferior volsella absent. Gonocoxite 115–119, 117 µm long. Gonostylus 126.5–131, 128.75 µm long, tapered apically with pointed apex. HR 0.91–0.94, 0.925; HV 2.4–2.7, 2.55. Distribution (Fig. 2). West Bengal and Assam, India (present record). Remarks. Characters such as V shaped anal tergite band, absence of inferior volsella, bilobed or trilobed superior volsella and presence of frontal tubercles assert the positioning of this new species in Demicryptochironomus (Demicryptochironomus). Parallel sided anal point without ridge present in both the new species and D. (D). zairensis Lehman, 1979 but they differ in the shape of superior volsella and gonostylus.Published as part of Mukherjee, Bindarika & Hazra, Niladri, 2022, Two new species of Demicryptochironomus Lenz, 1941 from India with tentative phylogenetic relationship and a revised world key to known males (Diptera: Chironomidae), pp. 88-100 in Zootaxa 5175 (1) on pages 90-92, DOI: 10.11646/zootaxa.5175.1.4, http://zenodo.org/record/700324
Beckidia inflata Mukherjee & Hazra 2023, sp. n.
No full text<i>Beckidia inflata</i> sp. n. <p>GenBank Accession No. OP683426</p> <p>urn:lsid:zoobank.org:act: 4ED2CD46-2EAB-4F2E-9DF2-50F79AB607CC</p> <p> <b>Material examined.</b> Holotype male, labelled ‘ Holotype <i>Beckidia inflata</i> <b>sp. n.</b>, India, West Bengal, Purba Barddhaman [23.2446° N, 87.8496° E], 31.iii.2022, Coll. B. Mukherjee’. Paratype 1 male, labelled ‘ Paratype <i>Beckidia inflata</i> <b>sp. n.</b>, India, West Bengal, Purba Barddhaman [23.2446° N, 87.8496° E], 26.viii.2022, Coll. B. Mukherjee’. Paratypes 2 males, labelled ‘ Paratype <i>Beckidia inflata</i> <b>sp. n.</b>, India, west Bengal, Purba Barddhaman [23.2393° N, 87.8512° E], 02.ix.2020, Coll. N. Hazra’. Paratype 1 male, labelled ‘ Paratype <i>Beckidia inflata</i> <b>sp. n.</b>, India, West Bengal, Purba Barddhaman [23.1840° N, 88.0302° E], 20.ii.2023, Coll. Sk. Mohim Ali’.</p> <p> <b>Diagnostic characters.</b> The new species can be separated from other species of <i>Beckidia</i> by the following combination of characters: acrostichals absent, anal point slightly widened apically, apically broadened superior volsella having 13–16 apical setae and covered with microtrichia, and gonostylus apically widened.</p> <p> <b>Etymology.</b> The name ‘ <i>inflata</i> ’, originated from a Latin word ‘ <i>inflatus</i> ’, refers to the apically expanded superior volsella.</p> <p> <b>Male (n=5).</b> Total length 2.75–3.07, 2.9 mm. Wing length 1.53–1.55, 1.54 mm. Costal length 1.47–1.49, 1.48 mm. Antennal length 0.82–0.85, 0.835 mm.</p> <p>Colouration. Thorax yellow with brown marking; leg and abdomen yellowish brown.</p> <p>Head. Head width 375–470, 422.5 µm. Temporal setae 7–8 (IV 2, OV 3, Po 2–3). Clypeal setae 10–12. Frontal tubercles absent. Eyes bare with dorsomedial extension of 100–110, 105 µm. AR 1.58–1.63, 1.61; ultimate flagellomere 520–530, 525 µm long. Palpomere lengths (I–V) (µm): 34.5: 27.6–28, 28.8: 106–110; 108: 140–146, 143: 200. CA 0.46–0.55, 0.50.</p> <p> Thorax. Scutal tubercle absent. Ac 0, Dc 5–6, Pa 2, Scts 4. Wing (Fig. 1A). VR 1.06–1.13, 1.095. R 1 and R 4+5 bare. Brachiolum with 2 setae. Squama with 4–6 fringed setae. FCu distinctly distal to RM. Anal lobe moderately developed. Legs. Fore tibia with 1 seta. Mid legs with 2 tibial spurs; 13.8 µm long with 27–28 lateral teeth. Hind leg with 2 tibial spurs; 16 µm and 18.5 µm long with 32 teeth. Lengths and proportions of leg segments shown in table I.</p> <p>Hypopygium (Figs. 1B–D). Anal tergite band Y shaped. Anal point 42–46, 44 µm long, apically expanded. Laterosternite IX with 2 setae on each side of anal point. Longitudinal and transverse sternapodeme 57.5–61, 59.25 µm and 27.5–30, 28.75 µm long respectively. Superior volsella 53–57.5, 55.25 µm long and 28 µm wide apically, somewhat racquet like, microtrichiose with bearing 13–16 setae and fused with inferior volsella. Gonocoxite 105– 115, 110 µm long. Gonostylus 161–165, 163 µm long widest distally. HR 0.65–0.70, 0.675. HV 2.61–2.66, 2.63.</p> <p> <b>Distribution.</b> India, West Bengal.</p> <p> <b>Remarks.</b> Apically broadened superior volsella, distally thickened gonostylus and absence of acrostichals confirm the emplacing of the new species in the genus <i>Beckidia</i> Saether. The new species shows closeness with <i>B. connexa</i> Zorina, 2006 in having distally swollen gonostylus, nearly similar anal point and lacking of acrostichals. They differ in the shape of anal tergite band (H shaped tergite band in <i>B. connexa</i> while it is Y shaped in new one) and superior volsella (pad like in <i>B. connexa</i> while it is apically inflated in new species).</p>Published as part of <i>Mukherjee, Bindarika & Hazra, Niladri, 2023, Taxonomic studies on Harnischia complex from India (Diptera: Chironomidae), pp. 239-263 in Zootaxa 5278 (2)</i> on page 241, DOI: 10.11646/zootaxa.5278.2.2, <a href="http://zenodo.org/record/7906073">http://zenodo.org/record/7906073</a>
Robackia aequilongia Mukherjee & Hazra 2022, sp. n.
No full textRobackia aequilongia sp. n. GenBank Accession no. MZ298127 LSIDurn:lsid:zoobank.org:act: D58B3BF0-FD16-4029-8C15-EA1839B3722A Material examined. Holotype male, labelled ‘ Holotype Robackia aequilongia sp. n., India, West Bengal, Purulia [23.1481° N, 86.5451° E], 08.iii.2020, Coll. T. Mukherjee’. Paratype 1 male, labelled ‘ Paratype Robackia aequilongia sp. n., India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 15.vi.2020, Coll. N. Hazra’. Diagnostic characters. The adult male is distinguished from other species of the genus Robackia by the presence of a distally bilobed superior volsella, rounded posterior ventral margin of tergite IX and absence of strong setae on tergite IX. Etymology. The name ‘ aequilongia ’, a Latin word, derived from ‘ aequilongi ’, refers to bilobed superior volsella. Male (n=2) Total length 3.7 mm. Wing length 1.9–1.93 mm. Costal length 1.81–1.85 mm. Antennal length 0.94–0.97 mm. Colouration. Thorax yellowish brown, leg colour light brown, abdomen yellow to light brown. Head. Head width 510–530, 520 µm. Temporal setae 8–10 (IV 2–3, OV 4–5, Po 2). Clypeal setae 12. Frontal tubercle absent. Eyes bare with dorsomedial extension of 120–130 µm. Ultimate flagellomere 630–660 µm long; AR 2.03–2.13. Length of palpomeres (I–V) (µm): 20: 40: 90: 100: 160. CA 0.53–0.56, 0.54. Thorax. Antepronotum notched, scutal tubercle absent, antepronotal 0, dorsocentrals 8, scutellars 4. Others not countable. Wing (Fig.1A). VR 1.05. R with 1 seta, R 1 and R 4+5 bare. Brachiolum with 2 setae. Squama with 13 fringed setae. Anal lobe well developed. Legs. Fore tibia with 1–2 setae. Mid legs with 2 tibial spurs; 23.6–25.3 µm and 23 µm long with 28–30 teeth. Hind leg with 2 tibial spurs; 27.6–29.9 µm and 16.1–18.4 µm long with 42–44 teeth. Lengths (µm) and proportions of leg segments shown in table 1. Abdomen. Tergite IX with numerous ventral setae. Rounded posterior ventral margin of tergite IX and absence of strong setae on tergite IX. Hypopygium (Figs. 1B–E). Anal tergite band V shaped. Anal point parallel sided, distally rounded; 43.7–46 µm long, 11.5 µm wide. Anal point bearing 3–4 lateral setae on each side. Transverse sternapodeme 34.5–36.8 µm long. Superior volsella (Fig. 1D) bilobed, subequal in size; inner part rod like, 50.6 µm long with 1 apical and 1 subapical setae arising from strong base and outer part bare, apically little swollen, 55.2–57.5 µm long, 6.9–9.2 µm wide at base and 13.8 µm wide at apex. Inferior volsella small, disc like, microtrichiose. Gonocoxite 144.9–149.5 µm long. Gonostylus 169.7–172.5 µm long. HR 0.85–0.87; HV 2.47–2.51. Distribution. West Bengal, India (present record). Remarks. The new species is closely related to R. parallela Yan et Wang, 2006, in having more or less similar LR, equal number of dorsocentrals and parallel-sided anal point but differs in the shape of superior volsella (digitiform in C. parallela while it is bilobed in the new species), number of setae on anal point (12 weak setae in C. parallela while 6 weak setae in new one), squamal setae (5 in C. parallela while 13 in new one) and R vein (3 in C. parallela while 1 in new one). Robackia pilicauda Saether, 1977 has a distally swollen superior volsella and nearly parallel-sided anal point, but the combination of characters such as the presence of setae on the inner part of bilobed superior volsella, absence of strong setae on tergite IX, reduced number of seta(e) on R vein and numerous setae on squama can easily distinguish the new species from R. pilicauda.Published as part of Mukherjee, Bindarika & Hazra, Niladri, 2022, First records of three genera, Cyphomella Saether, 1977, Olecryptotendipes Zorina, 2007 and Robackia Saether, 1977 of the Harnischia complex from India with description of O. extentus sp. n., O. obtunsus sp. n. and R. aequilongia sp. n. (Diptera: Chironomidae), pp. 330-340 in Zootaxa 5091 (2) on pages 331-333, DOI: 10.11646/zootaxa.5091.2.5, http://zenodo.org/record/584366
Demicryptochironomus (Irmakia) dividuus Mukherjee et Hazra 2022, sp. n.
No full textDemicryptochironomus (Irmakia) dividuus Mukherjee et Hazra, sp. n. urn:lsid:zoobank.org:act: 860D8812-98E8-4B14-ADBB-9E15BF1BFE63 GenBank Accession No. ON881144 Material examined. Holotype male, labelled ‘ Holotype Demicryptochironomus (Irmakia) dividuus sp. n., India, West Bengal, Darjeeling [26.7095° N, 88.3542° E], 04.ix.2021, Coll. G. Pal’. Paratype 1 male, labelled ‘ Paratype Demicryptochironomus (Irmakia) dividuus sp. n., India, West Bengal, Burdwan [23.2393° N, 87.8512° E], 26.ii.2021, Coll. N. Hazra’. Diagnostic characters. The species can be separated from other species of the genus Demicryptochironomus (Irmakia) by the following combinations of features: partially divided superior volsella at apex, and apically pointed gonostylus with strong concavity. Etymology. The name “ dividuus ’’, a Latin word, refers to the partly divided superior volsella at apex. Male (n=2) Total length 2.4–3, 2.7 mm. Wing length 1.85–1.87 mm. Costal length 1.78 mm. Antennal length 0.8 mm. Colouration. Thorax yellowish brown, leg colour light brown, abdomen yellow to light brown. Head. Head width 500–540 µm. Temporal setae 8–10 (IV 1, OV 6–7, Po 0–2). Clypeal setae 9–10. Frontal tubercles present, 4.6–5 µm long. Eyes bare with dorsomedial extension of 115–130 µm. Ultimate flagellomere 490 µm long; AR 1.58. Length of palpomeres (I–V) (µm): 23: 46: 92: 105: 149. CA 0.63–0.68. Thorax. Acrostichals 4, dorsocentrals 12–14, prealars 3, supraalars 1–2 and scutellars 6–8. Wing (Fig. 3A). VR 1.14. R with 17 setae, R 4+5 with 18 setae. Brachiolum with 2 setae. Squama with 4 fringed setae. FCu distinctly distal to RM. Anal lobe moderately developed. Legs. Fore tibia with 2–3 setae. Mid legs with 2 tibial spurs; 16–18.4 and 20.7 µm long, comb with 36–40 teeth. Hind leg with 2 tibial spurs; 23 µm and 25.3 µm long, comb with 48–50 teeth. Lengths (µm) and proportions of legs shown in table 2. Hypopygium (Figs. 3B–D).Anal tergite band Y shaped.Anal point 76–80.5 µm long, 9.2–11.5 µm wide, slightly widened sub apically, apically rounded, bearing 3–4 lateral setae on each side. Transverse sternapodeme 23–30 µm long. Digitiform superior volsella 18.34–20.7 µm long, 6.9–9.2 µm wide (Fig. 3D), partially bifurcated apex bearing 2 setae. Inferior volsella absent. Gonocoxite 138 µm long. Gonostylus 156–166 µm long, widest medially, apically pointed and strongly curved in middle with strong longitudinal keel. HR 0.84–0.88; HV 2.17. Distribution (Fig. 4). West Bengal, India (present record). Remarks. The new species shows closeness with D. (I). concavus Yan, Tang et Wang, 2005 in having somewhat similar shaped gonostylus but differs in the shape of superior volsella. Small thumb–like superior volsella is possessed by the new species and D. (I). fastigatus (Townes, 1945), but superior volsella is apically bisected in the new species while it is undivided apically in the latter species.Published as part of Mukherjee, Bindarika & Hazra, Niladri, 2022, Two new species of Demicryptochironomus Lenz, 1941 from India with tentative phylogenetic relationship and a revised world key to known males (Diptera: Chironomidae), pp. 88-100 in Zootaxa 5175 (1) on pages 92-95, DOI: 10.11646/zootaxa.5175.1.4, http://zenodo.org/record/700324
Saetheria circinata Mukherjee & Hazra 2023, sp. n.
No full textSaetheria circinata sp. n. GenBank Accession No. OP683428 urn:lsid:zoobank.org:act: 60F40CC2-CCA8-44E2-B256-7CB9E40BC76F Material examined. Holotype male, labelled ‘ Holotype Saetheria circinata sp. n., India, West Bengal, Purba Barddhaman [23.2393° N, 87.8512° E], 04.ii.2020, Coll. N. Hazra’. Paratype 1 male, same data as holotype, 25.vi.2020, Coll. N. Hazra. Paratypes 2 males, same data as holotype, 15.ii.2021, Coll. N. Hazra. Paratype 1 male, same data as holotype, 14.vi.2021, Coll N. Hazra. Paratype 1 male, same data as holotype, 19.xi.2021, Coll. N. Hazra. Diagnostic characters. The distinguished features of new species are as follows: apically slightly broadened anal point with a median ridge, Y shaped anal tergite band, anal tergite band and nearly triangular shaped ventral lobe of superior volsella. Etymology. The name ‘ circinata ’, originated from a Latin word ‘ circinatus ’, refers to circular dorsal lobe of superior volsella. Male (n=6) Total length 2.75–2.8, 2.775 mm. Wing length 1.7–1.85, 1.77 mm. Costal length 1.65–1.7, 1.67 mm. Antennal length 0.82–0.85, 0.835 mm. Colouration. Thorax with dark brown marking; leg and abdomen yellowish brown. Head. Head width 450–460, 455 µm. Temporal setae 8–9 (IV 4–5, OV 3–4, Po 0–1). Clypeal setae 12. Frontal tubercles present. Eyes bare with dorsomedial extension of 130–140, 135 µm. AR 1.2–1.41, 1.30; ultimate flagellomere 460–480, 470 µm long. Palpomere lengths (I–V) (µm): 23–25, 24: 30: 80.5–82, 81.25: 103.5: 149.5– 152, 150. CA 0.54–0.55, 0.545. Thorax. Scutal tubercle absent. Ac 8, Dc 7, Pa 3, Scts 2–3. Wing (Fig. 4A). VR 1.14–1.16, 1.15. R 1 and R 4+5 bare. Brachiolum with 1 seta. Squama with 7 fringed setae. FCu distinctly distal to RM. Anal lobe moderately developed. Legs. Fore tibia with 2 setae. Mid legs with 2 tibial spurs; 16 µm and 18.4 µm long with 22–26 lateral teeth. Hind leg with 2 tibial spurs; 18.4 µm and 20.7 µm long with 29–32 teeth. Lengths and proportions of leg segments shown in table IV. Hypopygium (Figs. 4B–D). Anal tergite band Y shaped. Anal point slightly expanded apically, 37–40, 38.5 µm long with a median ridge like appearance. Laterosternite IX with 3 setae on each side of anal point. Longitudinal and transverse sternapodeme 75–78, 76.5 µm and 73.5 µm long respectively. Superior volsella 55–58, 56.5 µm long and 25.3 µm wide, nearly triangular in shape, consisting of dorsal and ventral lobe, dorsal lobe having roughly circular base (23 µm long) with digitiform projection (27–28 µm long) while ventral lobe nearly triangular shaped bearing 2 setae (1 seta on heel and another one placed subapically). Inferior volsella with a rounded apical part covered with microtrichia. Gonocoxite 122–126, 124 µm long. Gonostylus 126.5–131, 128.75 µm long. HR 0.96–0.97, 0.965. HV 2.18– 2.29, 2.235. Distribution. India, West Bengal. Remarks. Presence of roughly bilobed superior volsella having digitiform projection on dorsal lobe, Y shaped anal tergite band and spatulated anal point confirm the positioning of new species into genus Saetheria Jackson. The new species closely related with S. digitata Yan et al., 2011 in having more or less similar gonostylus and dorsal lobe of superior volsella but presence of triangular like ventral lobe of superior volsella with 1 seta at apical end and somewhat apically spatulated anal point can segregate the new species from S. digitata.Published as part of Mukherjee, Bindarika & Hazra, Niladri, 2023, Taxonomic studies on Harnischia complex from India (Diptera: Chironomidae), pp. 239-263 in Zootaxa 5278 (2) on pages 251-253, DOI: 10.11646/zootaxa.5278.2.2, http://zenodo.org/record/790607
Bharati Mukherjee, conquering America
No full textAuthor Bharati Mukherjee discusses her works and what it means to be an Asian immigrant in the United States.Host, Bill Moyers. Director of photography, Eric Camiel ; editor, Michael Collins ; theme music, Michael Bacon
Olecryptotendipes obtunsus Mukherjee & Hazra 2022, sp. n.
No full textOlecryptotendipes obtunsus sp. n. GenBank Accession no. MZ695837 LSIDurn:lsid:zoobank.org:act: 2E18995E-B925-4706-B2CE-899C36BFEB32 Material examined. Holotype male, labelled ‘ Holotype Olecryptotendipes obtunsus sp. n., India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 10.ii.2021, Coll. N. Hazra’. Paratype 2 males, same data as holotype, labelled ‘ Paratype Olecryptotendipes obtunsus sp. n., India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 14.v.2020, Coll. N. Hazra’. Paratype 1 male, same data as holotype, labelled ‘ Paratype Olecryptotendipes obtunsus sp. n., India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 16.iv.2021, Coll. N. Hazra’. Paratype 1 male, same data as holotype, labelled ‘ Paratype Olecryptotendipes obtunsus sp. n., India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 15.vii.2021, Coll. N. Hazra’. Diagnosis. The new species is distinguished by the presence of an inverted Y-shaped superior volsella consisting of a non-sclerotised blunt outer part and a small sclerotised inner part, a parallel-sided anal point, weak shoulder-like corner on tergite IX and weak inferior volsella. Etymology. The name ‘ obtunsus ’ a Latin word, refers to the blunt outer part of the superior volsella; to be treated as an adjective. Male (n=5). Total length 2.9–3.03, 2.96 mm. Wing length 1.97–2.1, 2.03 mm. Costal length 1.90–2.00, 1.95 mm. Antennal length 0.82–0.85, 0.83 mm. Colouration. Thorax dark brown. Leg and abdomen yellowish brown. Head. Head width 530–550, 540 µm. Temporal setae 9–10 (IV 2–3, OV 5, Po 2). Clypeal setae 10–12. Frontal tubercles absent. Eyes bare with dorsomedial extension of 80–90, 155 µm.AR 1.82–1.93, 1.87; ultimate flagellomere 530–560, 545 µm long. Palpomere lengths (I–V) (µm): 20: 40–50; 45: 90–110; 100: 120: 130–140; 135. CA 0.65– 0.67, 0.66. Thorax. Vittae present. Scutal tubercle absent. Acrostichals 10, dorsocentrals 6–7, prealars 3, supraalars 2–3, scutellars 6–8. Wing (Fig. 3A). VR 1.07–1.12, 1.09. R 1 with 7–8 setae, R 4+5 bare. Brachiolum with 2 setae. Squama with 4 fringed setae. Anal lobe moderately developed. Legs. Fore tibia with 3 setae. Mid legs with 2 tibial spurs; 23–25.3, 24.15 µm and 25.3–27.6, 26.45 µm long with 24–30 teeth. Hind leg with 2 tibial spurs; 27.6–29.9, 28.75 µm and 32.2 µm long with 44–50 teeth. Lengths and proportions of leg segments shown in table 3. Abdomen. Tergite IX with weak shoulder-like corner on each side of anal point. Hypopygium (Figs. 3B–E). Anal tergite band Y-shaped. Anal point parallel-sided, distally rounded, originating from caudal margin of anal tergite; 43.7–46, 44.85 µm long, 6.9–9.2, 8.05 µm wide. Anal point bearing 4 basally located lateral setae on each side. Transverse sternapodeme 39.1–43.7, 41.4 µm long, longitudinal sternapodeme 57.5–62.1, 59.8 µm long. Superior volsella variable shaped (Figs. 3D–E), 69–75.9, 72.45 µm long and 23 µm wide, slightly curved, apically somewhat inverted Y shaped, consisting of sclerotised shorter inner protrusion with 1 apical seta and 1 sub apical seta and a blunt non-sclerotised longer outer protrusion; covered with microtrichia in inner parts. Inferior volsella small, reaching beyond margin of anal tergite and covered with microtrichia. Gonocoxite 117.3–126.5, 122 µm long. Gonostylus 142.6–149.5, 146 µm long bearing 5 setae along inner margin. HR 0.82– 0.84, 0.83; HV 2.39–2.47, 2.43. Distribution. West Bengal, India (present record). Remarks. The new species is similar to Olecryptotendipes exilis Yan, Wang et Bu, 2012 in having a parallel sided anal point, two setae on the superior volsella and a microtrichiose inner part of the superior volsella, but the absence of a spur-like posterolateral projection of superior volsella and lobe on tergite IX can differentiate the new species from O. exilis. The shape of the gonostylus and presence of a weak shoulder-like corner on tergite IX are similar in both new species and O. melasmus Yan, Wang et Bu, 2012 but they differ in the shape of the superior volsella and anal point. A world key to the species of the genus Olecryptotendipes Zorina, 2007 (♂) ( revised after Yan et al. 2017) 1. Acrostichals absent; R bare (Palaearctic: Russia)....................................... O. secundus (Zorina, 2003) - Acrostichals present; R with setae........................................................................ 2 2(1). Thorax without dark brown spots..........................................................................3 - Thorax with dark brown spots........................................................................... 4 3(2). Inferior volsella absent; antepronotals 2 (Palaearctic: Russia, China)............................ O. lenzi (Zorina, 2001) - Inferior volsella lobe–like; antepronotals 6–7 (Oriental China).......................... O. exilis Yan, Wang et Bu, 2012 4(2). Superior volsella without projection...................................................................... 5 - Superior volsella with projection......................................................................... 6 5(4). Superior volsella simple, digitiform (Oriental China).................................. O. arienus Yan et Wang, 2017 - Superior volsella inverted, T-shaped in appearance (Orient: India) (Fig. 4A).......................... O. extentus sp. n. 6(4). Superior volsella curved basally, straight distally, with large posterolateral projection (Palaearctic and Oriental China)............................................................................. O. melasmus Yan, Wang et Bu, 2012 - Superior volsella with a partially sclerotised beak-like small projection and a flap-like blunt non-sclerotised apicolateral projection (Orient: India) (Fig 6A).......................................................... O. obtunsus sp. n.Published as part of Mukherjee, Bindarika & Hazra, Niladri, 2022, First records of three genera, Cyphomella Saether, 1977, Olecryptotendipes Zorina, 2007 and Robackia Saether, 1977 of the Harnischia complex from India with description of O. extentus sp. n., O. obtunsus sp. n. and R. aequilongia sp. n. (Diptera: Chironomidae), pp. 330-340 in Zootaxa 5091 (2) on pages 335-337, DOI: 10.11646/zootaxa.5091.2.5, http://zenodo.org/record/584366
Olecryptotendipes extentus Mukherjee & Hazra 2022, sp. n.
No full text<i>Olecryptotendipes extentus</i> sp. n. <p>LSIDurn:lsid:zoobank.org:act: E4026664-59C3-49F4-8BB9-98879FE85757</p> <p> <b>Material examined.</b> Holotype male, labelled ‘ Holotype <i>Olecryptotendipes extentus</i> <b>sp. n</b>., India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 10.iii.2020, Coll. N. Hazra’. Paratype 1 male, same data as holotype, labelled ‘ Paratype <i>Olecryptotendipes extentus</i> <b>sp. n.</b>, India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 25.viii.2020, Coll. N. Hazra’. Paratype 1 male, same data as holotype, labelled ‘ Paratype <i>Olecryptotendipes extentus</i> <b>sp. n.</b>, India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 14.ix.2020, Coll. N. Hazra’. Paratype 1 male, same data as holotype, labelled ‘ Paratype <i>Olecryptotendipes extentus</i> <b>sp. n.</b>, India, West Bengal, Burdwan [23°22ʹN, 87°85ʹE], 10.xii.2020, Coll. N. Hazra’.</p> <p> <b>Diagnosis.</b> The adult male is distinguished from other species of <i>Olecryptotendipes</i> by the presence of a partially sclerotised, apicolaterally distinctly widened superior volsella with 2 apical setae and 1 subapical seta, parallel-sided anal point widest at base and small inferior volsella.</p> <p> <b>Etymology.</b> The name ‘ <i>extentus</i> ’, a Latin word, refers to the apically extended or widened superior volsella.</p> <p> <b>Male (n=4).</b> Total length 3.38–3.6, 3.49 mm. Wing length 1.92–1.95, 1.93 mm. Costal length 1.85–1.90, 1.87 mm. Antennal length 0.97–1.0, 0.98 mm.</p> <p>Colouration. Thorax dark brown. Leg and abdomen yellowish brown.</p> <p>Head. Head width 520–550, 530 µm. Temporal setae 10–11 (IV 3, OV 3–4, Po 4). Clypeal setae 16–17. Frontal tubercles absent. Eyes bare with dorsomedial extension of 150–160, 155 µm. Ultimate flagellomere 620–650, 635 µm long; AR 1.78–1.85, 1.81. Palpomere lengths (I–V) (µm): 30: 40–60; 50: 90–110; 100: 120–140; 130: 170–190; 180. CA 0.53–0.55, 0.54.</p> <p>Thorax. Vittae present. Scutal tubercle absent. Acrostichals 8–9, dorsocentrals 8, prealars 3, supraalars 3–4, scutellars 4.</p> <p> Wing (Fig. 2A). VR 1.12–1.14, 1.13. R 1 with 10 setae; R 4+5 bare. Brachiolum with 2 setae. Squama with 4 fringed setae. Anal lobe moderately developed.</p> <p>Legs. Fore tibia with 2 setae. Mid legs with 2 tibial spurs; 25.3–27.6, 26.45 µm and 29.9 µm long with 28–30 teeth. Hind leg with 2 tibial spurs; 27.6–29.9, 28.75 µm and 34.5–36.8, 35.65 µm long with 48–52 teeth. Lengths and proportions of leg segments shown in table 2.</p> <p>Hypopygium (Figs. 2B–D). Anal tergite band Y- shaped. Anal point parallel-sided, distally rounded, originating from caudal margin of anal tergite; 57.5–59.8, 58.65 µm long, 6.9–9.2, 8.05 µm wide at apex and 13.8–18.4, 16.1 µm wide at base. Four setae on each side of base of anal point. Transverse sternapodeme 50.6–55.2, 52.9 µm long. Superior volsella (Fig. 2D) curved, partially sclerotised, apicolaterally expanded and inverted T shaped, 73.6–80.5, 77.05 µm long and 11.5–13.8, 12.65 µm wide at base and 29.9–32.2, 31.05 µm wide at apex, with 2 apical setae arising from strong base and 1 subapical seta, inner part covered by microtrichia. Inferior volsella small, reaching beyond margin of anal tergite and covered with microtrichia. Gonocoxite 149.5–151.8, 150.65 µm long. Gonostylus 161–163.3, 162.15 µm long. HR 0.92–0.94, 0.93; HV 2.20–2.37, 2.28.</p> <p> <b>Distribution.</b> West Bengal, India (present record).</p> <p> <b>Remarks.</b> Characters such as the Y-shaped anal tergite band, distinct superior volsella, weak inferior volsella, absence of frontal tubercles and scutal tubercle affirm the placement of this new species in <i>Olecryptotendipes</i> Zorina. The new species is similar to <i>O. lenzi</i> (Zorina, 2001) by the presence of microtrichia and the absence of a protrusion on the superior volsella. The new species resembles <i>O. arienus</i> Yan et Wang, 2017 in having parallel sided gonostylus, a similar number of prealar (3) and squamal (4) setae but differs in AR (1.78–1.85 of the new species while <i>C. arienus</i> has 1.03–1.64), HR (0.92–0.94 of new species while <i>C. arienus</i> has 0.46–0.49) and the shape of the superior volsella (simple, digitiform shaped in <i>C. arienus</i> while it is inverted T-shaped in new species).</p>Published as part of <i>Mukherjee, Bindarika & Hazra, Niladri, 2022, First records of three genera, Cyphomella Saether, 1977, Olecryptotendipes Zorina, 2007 and Robackia Saether, 1977 of the Harnischia complex from India with description of O. extentus sp. n., O. obtunsus sp. n. and R. aequilongia sp. n. (Diptera: Chironomidae), pp. 330-340 in Zootaxa 5091 (2)</i> on pages 333-335, DOI: 10.11646/zootaxa.5091.2.5, <a href="http://zenodo.org/record/5843668">http://zenodo.org/record/5843668</a>
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