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Ptilomera (P.) assamensis Hungerford & Matsuda, 1965 (Figs. 2A–J) <... more Ptilomera (P.) assamensis Hungerford & Matsuda, 1965 (Figs. 2A–J) Ptilomera assamensis Hungerford & Matsuda, 1965. Univ. Kansas Sci. Bull., 45: 421 (type locality: Assam, India). Material examined. INDIA, MEGHALAYA, East Khasi Hills District, 3 apt. &male;, 4 apt. &female;, Badapani, Haria Nala, 1453 m, 25.65442 N, 91.90517 E, 26.ii.2016; 1 apt. &male;, 2 apt. &female;, Mawkynrew, Waiong Stream, 1489 m, 25.42489 N, 92.00619 E, 28.ii.2016; 5 apt. &male;, 1 apt. &female;, Pongtung Village, Wahpongtung Stream, 1017 m, 25.24842 N, 91.94494 E, 29.iii.2016; 1 apt. &female;, Siatbakon Village, Wahtyrsaw Stream, 1207 m, 25.29983 N, 91.92028 E, 29.ii.2016; 1 apt. &female;, Lyngiong Village, Maria Stream, 1647 m, 25.41639 N, 91.68353 E, 7.iii.2016; West Jaintia Hills District, 2 apt. &male;, Laskein Village, Myntang River, 893 m, 25.56131 N, 92.43803 E, 13.iii.2016; 2 apt. &male;, 1 apt. &female;, Raliang Village, Yalip Stream, 1205 m, 25.48786 N, 92.37564 E, 13.iii.2016; 1 apt. &male;, Thadmuthlong Village, Thwailangwiang Stream, 1324 m, 25.4705 N, 92.30992 E, 13.iii.2016; 1 apt. &male;, Wahiajer Village, 1198 m, 25.56003 N, 92.18247 E, 14.iii.2016; 2 apt. &male;, 3 apt. &female;, Wahiajer Village, Umpawai Stream, 1183 m, 25.55831 N, 92.18322 E, 14.iii.2016; East Jaintia Hills District, 1 apt. &male;, 1 apt. &female;, Narpuh WLS, Jamchera Village, Stream, 234 m, 25.09222 N, 92.36086 E, 11.iii.2016; 1 apt. &male;, 2 mac. &male;, 1 apt. &female;, 2 mac. &female;, 8 nymphs, Narpuh WLS, Umkiang Village, Wah Apha Stream, 19 m, 25.06997 N, 92.3785 E, 11.iii.2016; 2 apt. &male;, 8 apt. &female;, 1 nymph, Narpuh WLS, Kuliang, Stream, 93 m, 25.07506 N, 92.37133 E, 11.iii.2016; 2 apt. &male;, 1 apt. &female;, Thongsang, 960 m, 25.13789 N, 92.36906 E, 11.iii.2016; 1 apt. &male;, Narpuh WLS, Umkiang Village, Umkiang Stream, 112 m, 25.06347 N, 92.38858 E, 11.iii.2016; 2 apt. & [...]

Velia (Cesavelia) mitrai sp. nov. Description. Apterous male</b&gt... more Velia (Cesavelia) mitrai sp. nov. Description. Apterous male (Figs. 1, 3, 5, 7, 9, 11– 17). Size: Length 7.0– 7.1 mm, maximum width of body (across thorax) 1.8 mm. Colour: Body ground color black, with scattered silvery pubescent patches dorsally. Head black with a prominent median furrow; antennae and eyes black. Pronotum black, with broad patches of silvery pubescence laterally and a transverse orange patch anteromedially. Anterior and posterior margins of pronotum bearing one and three rows of black punctures respectively. Abdominal tergites II, V, and VI with dense patches of silvery pubescence laterally, smaller patches of silvery pubescence present at anterolateral angles of tergites III and IV. Tergite VII with one pair (1 + 1) of silvery pubescent stripes near lateral margins. Outer halves of connexiva orange both dorsally and ventrally. Legs uniformly black. Abdominal sternites II–VI dark orange-brown medially. Structure: Head length 0.68, width 1.10. Length of first antennomere 2.2 times head length and 1.4 times head width. Head width 1.8 times as long as interocular space. Pronotum length 1.47 times as long as eye length (pronotum, 0.59, eye, 0.40). Mesofemur 2.0 times as long as pronotum width. Metatibia 1.0 times as long as metafemur, 1.8 times as long as metatarsus. Second mesotarsus 1.3 times as long as third tarsomere; second metatarsomere 1.7 times as long as third metatarsal segment. Flexor side of meso- and metatibia with erect setae. Metatrochanter with 8 denticles, 5 th and 6 th denticles somewhat longer than the remainder. Metafemur of male stout, 6.4 times as long as wide (Figs. 11, 12), posterior margin bearing prominent spines (Figs. 11, 12), starting with twelve small teeth, followed by two long diverging teeth, continued with ten small teeth, then another larger tooth, followed by seven small teeth of progressively decreasing size to apex (Fig. 12). Length of abdominal tergites 4.20, maximum width 1.50. Connexival spines in male short with apices poin [...]

Aphelocheirus (Aphelocheirus) thirumalaii</i&gt... more Aphelocheirus (Aphelocheirus) thirumalaii sp. nov. Type material. Holotype (brachypterous male in 70 % alcohol, Zoological Survey of India, Kolkata, H.Q., Reg. No.: 2775 /H 15) from Dhupjhora, Murti River (Lat.: N 26.7818 °, Long.: E 88.8411 °, Alt.: 151.7 m a.s.l.), within the Gorumara National Park, Jalpaiguri district, West Bengal, India, 17.III. 2012, collected by Srimoyee Basu. Paratypes: 4 males, 11 females (all brachypterous, in 70 % alcohol, Zoological Survey of India, Kolkata, H.Q., Reg.No.: 2776 /H 15) with the same collection data as holotype. Description of brachypterous male: Size: Body length 7.0– 7.7 mm; ovate in appearance (Fig. 1); maximum body width across 3 rd abdominal segment 4.3–4.6 mm; width of pronotum 2.8 mm; maximum width of head (including eyes) 1.6 mm; width of head (excluding eyes) 1.2mm. Colour: Dorsally, colour varies from pale brown to dark brown. Head yellow with an inverted 'V'-shaped marking towards the anterior margin, a more or less triangular fuscous spot posteriorly; eyes black. Pronotum overall brown with a more or less rectangular yellow spot medially; lateral margin pale. Scutellum yellow. Hemelytra dark brown with light brown embolium. Abdominal tergites fuscous with pale brown lateral margins; Ventrally, head including antenna shining yellow; rostrum brownish, yellow basally. Abdominal ventrites dark brown; lateral margins pale yellow. Legs light yellow; claws yellowish with brown apical parts. Genital segment light yellow. Head: Dorsally, with fine punctures, slightly produced ahead of eyes. Anterolateral corners of eyes with very, short, sparse setae. Head length 1.4 mm, twice as long as eye length; eyes 2.3 times longer than broad (L/W = 0.7 / 0.3); interocular space three times as wide the eye width. Antenna glabrous; length of antennal segments 1 _ 4: 0.12 mm, 0.16 mm, 0.22 mm, 0.31 mm, respectively. Rostrum 4 -segmented, reaching slightly beyond mesocoxa; length 3.0 mm, 2.1 times as long as fore [...]

Key to subgenera of Aphelocheirus 1. Larger species, length greater than 6.0 m... more Key to subgenera of Aphelocheirus 1. Larger species, length greater than 6.0 mm; Wing pads large in brachypterous forms, covering at least half of metanotum laterally; abdominal scent glands closer to midline than to lateral margin of abdomen................ subgenus Aphelocheirus - Smaller species, length less than 5.0 mm; Wing pads in brachypterous form small, not covering more than one fourth of metanotum laterally; abdominal scent glands closer to lateral margin of abdomen than to midline....subgenus Microaphelocheirus

Metrocoris lavitra Basu, Polhemus, Subramanian and Saha, NEW SPECIES Figs. 17–... more Metrocoris lavitra Basu, Polhemus, Subramanian and Saha, NEW SPECIES Figs. 17–32 Material examined. Holotype: Apterous male: INDIA, West Bengal, Jalpaiguri District, Chapramari Wildlife Sanctuary, stream infront of Chapramari railway gate, 26.8859°N, 88.8280°E, 176 m. asl., 10.III. 2011, coll. S. Basu, deposited in the Zoological Survey of India, H.Q., Kolkata (NZSI) Reg. No. 4621/H15. Paratypes: INDIA, West Bengal: 3 apterous males, 21 apterous females, Jalpaiguri District, Chilapata forest, Bania River, 26.6065°N, 88.4042°E, 74 m. asl., 19. IV. 2013, coll. S. Basu (NZSI) Reg. No. 4622/H15; 5 apterous males, 7 apterous females, Jalpaiguri District, Chaitanyajhora, stream flowing through Rajabhatkhawa forest, Buxa Tiger Reserve range, 26.6174°N, 89.5305°E, 77 m. asl, 19. IV. 2013, coll. S. Basu (NZSI) Reg. No. 4778/H15. Description. Apterous male (Holotype): Fig. 17 Size: Body length 6.30 mm, width across acetabula 3.16 mm. Colour: Body colour varying from dark orange to yellowish, with scattered black markings. Interocular dark mark black, triangular, bluntly pointed posteriorly. Inner margin of eyes dark. First antennal segment yellow basally, remainder of antenna entirely black, with silvery dots. Dark markings on all nota (Fig.19). Longitudinal dark stripe of mesopleuron much narrower than yellowish part, not connected to anterior margin or short acetabular stripe. Fore femur with two dark stripes and distal dark broad ring. Longitudinal broad dark stripe not connected to ring dorsally. Fore, mid and hind tibiae and tarsi black. Abdomen mostly orange with horizontal black stripes, terga I–VII orange with narrow black margins (Fig. 23). Tergum VIII orange with two short longitudinal dark bands on each side. Venter bright yellowish orange. Structural Characteristics: Head length 0.67, width 1.61. Posterior eye width 1.4 times width of eye. Eye length 0.8. Posterior half of eye covering almost half of propleuron. Interocular eye width 0 [...]

Metrocoris murtiensis Basu, Polhemus and Subramanian, NEW SPECIES Figs. 1–16 &... more Metrocoris murtiensis Basu, Polhemus and Subramanian, NEW SPECIES Figs. 1–16 Material examined. Holotype: Apterous male: INDIA, West Bengal, Jalpaiguri District, Gorumara National Park, continuation of Murti River, small pool, 26.70178°N, 88.79384°E, 100 m. asl, 17.III.2012, coll. S. Basu, deposited in the Zoological Survey of India, H.Q., Kolkata (NZSI) Reg. No. 4590/H15. Paratypes: INDIA, West Bengal: 1 apterous male, 7 apterous females,7 nymphs: same data as holotype (in 70% alcohol, NZSI); 5 apterous males, 5 apterous females, 13 nymphs, Jalpaiguri District, forested pool infront of Chapramari Wildlife Sanctuary, 26.8724°N, 88.8735°E, 167 m. asl, 18.III.2012, coll. S. Basu (NZSI) Reg. No. 4696/H15. Description. Apterous male (Holotype): Fig. 1 Size: Body length: 4.91 mm; body width across acetabula 2.29 mm. Colour: Dorsal body coloration yellowish to orange with dorsal black markings. Interocular dark mark on head arrow-shaped, bifid posteriorly, posterior margin connected with dark margin of eye on each side. Basal portions of antennal segments yellow. Rostrum yellow, narrowly dark brown at anterior and posterior ends. Dark mark on pronotum T-shaped with broad arms (Fig. 4); broad arms of T-shaped mark with invagination. Meso- and metanota with dark markings prominent, black, typically as in Fig. 4, lateral yellow portion with median black stripe extending half-length of body. Mid- and hind leg mostly black, yellow anteriorly. Fore femur yellowish with broad black stripe dorsally. Abdominal terga II–VIII blackish dorsally with median horizontal yellowish stripe on terga IV–VII. Tergum VIII yellowish with two black oval spots vertically separated by prominent median gap. Abdominal sterna yellowish. Structural characteristics: Head width subequal to pronotum width. Head length 0.68, width 1.46. Eyes 2.3 times longer than broad, length 0.72, width 0.31. Interocular width 0.56. Posterior half of eyes covering propleura by 0.32. Length o [...]

Eotrechus fuscus sp. nov. (Figs1–12) Type locality. India, ... more Eotrechus fuscus sp. nov. (Figs1–12) Type locality. India, Sikkim, West Sikkim District, Rimbi waterfalls. Type material. HOLOTYPE: J (apterous), INDIA: SIKKIM: West Sikkim, Rimbi waterfalls, 27.314035°N, 88.186561°E, alt. 4153 ft [= 1266 m a.s.l.], 11.v.2015, coll: S. Basu.The specimen is deposited in the National Zoological Collection of Zoological Survey of India, Kolkata (NZC-ZSI). Description. Male (apterous). Body. Body length 11.15 mm, maximum width across mesoacetabula 2.67 mm. Colour. Dorsally body colour mainly black, covered with golden pubescence. Head black, with 'v'-shaped brown mark pointing towards posterior margin. Eyes, abdominal tergites black. Antennae and legs brown. Pronotum with a long median brown marking extending from anterior to posterior end. Meso- and metanotum black with typical dark brown markings as in Fig.1. Ventral coloration mainly black except for dark brown head, prosternum, and 8 th abdominal sternite. Structure. Head length 1.76 mm and width across eyes 1.49 mm, longer than broad, wide posteriorly. Interocular width 1.14 mm. Eyes distinct, black and 'bean' shaped, length 0.78 mm and width 0.51 mm. Antennae long, slender, without tubercles; length of antennal segments 1 st to 4 th (mm): 3.97: 3.39: 2.03: 2.33; first antennal segment longer than rest. Rostrum long, 3.52 mm in length, reaching beyond the forecoxa. Pronotum broader than long, length 1.44 mm and width 1.69 mm, shorter than head length and with a distinct median ridge, stretching from anterior to posterior end. Total length of meso- and metanotum 3.39 mm and width 2.29 mm, with distinct carination (Fig. 3). Fore femur (Fig. 6) slender, without any modification, slightly incrassate basally, near margin of trochanter, fringed with short hairs along exterior margin, width of fore femur 0.45 mm. Fore tarsus dark brown, covered with numerous short setae, fore claws stout and distinct. Middle and hind legs long, slender and thickened proximally. Hind femur w [...]

Key to the known Indian species of Eotrechus (males) 1 Body mainly brown in co... more Key to the known Indian species of Eotrechus (males) 1 Body mainly brown in color, covered with golden or green pubescence..................... 2 – Body mainly black in color, covered with golden pubescence..................................... 3 2 Fore femur greatly incrassate throughout or basally..................................................... 4 – Fore femur simple and very slender, ventral surface without spine-like hairs; pygophore of male with elongated postero-lateral projections and bearing brush-like hairs.......................................................................................................... E. kalidasa Kirkaldy, 1902 3 Body length less than 10 mm; fore femur moderately incrassate in basal part..............5 – Body length more than 10 mm; fore femur slender, without any modification, only slightly incrassate in basal part; pygophore broad with long hair tufts and a pair of long curved projections....................

Figs 7–12. Genitalia of Eotrachus fuscus sp. nov., J (holotype). 7 – dissected genital segment, v... more Figs 7–12. Genitalia of Eotrachus fuscus sp. nov., J (holotype). 7 – dissected genital segment, ventral view; 8 – pygophore with paramere, lateral view; 9 – pygophore, ventral view; 10 – 8th abdominal segment, ventral view; 11 –proctiger of male, dorsal view; 12 – dorsal endosomal sclerite.

Figs 1–6. Eotrachus fuscus sp. nov., apterous J (holotype). 1 – dorsal view; 2 – ventral view; 3 ... more Figs 1–6. Eotrachus fuscus sp. nov., apterous J (holotype). 1 – dorsal view; 2 – ventral view; 3 – head and pronotum, dorsal view; 4 – abdominal tergites; 5 – abdominal sternites; 6 – right foreleg, ventral view.

FIGURES 8A–B. Distribution in India of: A, P. nagalanda Jehamalar and Chandra, new species; B, P.... more FIGURES 8A–B. Distribution in India of: A, P. nagalanda Jehamalar and Chandra, new species; B, P.tigrina Uhler (Yellow triangles denote locality details from literature; red squares denote locality details of materials examined inthe present study).

FIGURES 7A–B. Distribution in India of: A, P. laticaudata (Hardwicke); B, P. occidentalis Zettel ... more FIGURES 7A–B. Distribution in India of: A, P. laticaudata (Hardwicke); B, P. occidentalis Zettel (Yellow triangles denote locality details from literature; red squares denotelocality details of materials examined in the present study).

FIGURES 5A–J. Ptilomera tigrina Uhler (A, C, D, G, I, J: apterous male; B, E, F, H: apterous fema... more FIGURES 5A–J. Ptilomera tigrina Uhler (A, C, D, G, I, J: apterous male; B, E, F, H: apterous female): A, B, habitus, dorsal view; C & E, abdominal apex, dorsal view; D & F, same,ventral view; H, same, lateral view; G, mid femur, ventrolateral view; I, proctiger, dorsal view; J, paramere, lateral view.

FIGURES 4A–I. Ptilomera nagalanda Jehamalar and Chandra, new species (apterous male, holotype): A... more FIGURES 4A–I. Ptilomera nagalanda Jehamalar and Chandra, new species (apterous male, holotype): A, dorsal view; B, lateral view; C, abdominal apex, dorsal view; D, abdominal apex, ventral view; E, mid femur, ventrolateral view, showing setal fringe; F, proctiger, dorsal view; G, paramere, lateral view; H, endosoma, dorsal view, showing sclerites; I, same, lateral view, showing sclerites(als—accessorylateral sclerite;as—apical sclerite;bs—basal sclerite; ds—dorsalsclerite;ls—lateral sclerite; ms—median sclerite; vs—ventral sclerite).

FIGURES 2A–J. Ptilomera assamensis Hungerford & Matsuda (A, C, D, G, I, J: apterous male; B, E, F... more FIGURES 2A–J. Ptilomera assamensis Hungerford & Matsuda (A, C, D, G, I, J: apterous male; B, E, F, H: apterous female): A, B, habitus, dorsal view; C & E, abdominal apex, dorsal view; D & F, same, ventral view; H, same, lateral view; G, mid femur, ventrolateral view; I, proctiger, dorsal view; J, paramere, lateral view.

FIGURES 11–17. Metrocoris sikkimensis sp. nov. (11) Part of thorax and abdomen of female, dorsal ... more FIGURES 11–17. Metrocoris sikkimensis sp. nov. (11) Part of thorax and abdomen of female, dorsal view; (12) Part of thorax and abdomen of female, ventral view; (13) Dissected male terminalia; (14) Pygophore of male, ventral view; (15) Proctiger of male, dorsal view; (16) Endosoma of male, lateral view, showing sclerites (ds-dorsal sclerite; ls1-left first lateral sclerite; ls2- left second lateral sclerite; vs- ventral sclerite); (17) Male paramere, lateral view.

FIGURE 1. Distribution records of Metrocoris sikkimensis sp. nov.

Metrocoris quynhi Tran and Zettel of the genus Metrocoris Mayr was described from Vietnam in the... more Metrocoris quynhi Tran and Zettel of the genus Metrocoris Mayr was described from Vietnam in the year 2005. During the recent surveys to explore the diversity of water striders (Gerridae) in the State of West Bengal and in Himachal Pradesh, Metrocoris quynhi Tran and Zettel, 2005, was collected from different localities of Bengal and Himachal Pradesh. This species is widespread in Himalayan region of Bengal but not previously known from India. Hence, it is a new record to India after Vietnam.

Terai and Dooars region of West Bengal is highly diversified area, located in the Darjeeling Hima... more Terai and Dooars region of West Bengal is highly diversified area, located in the Darjeeling Himalayan foot hills. A total of 49 species under 30 genera and 13 family of aquatic and semi-aquatic Heteroptera, commonly known as water bugs, were collected from this region of West Bengal during a survey conducted between 2011 - 2013, of which four species were already published as new species and one species is a new report to India. Collection data and their worldwide distribution are provided in this communication. Aphelocheirus thirumalaii Basu, Subramanian and Saha, Onychotrechus dooarsicus Subramanian, Basu and Zettel, Pleciobates bengalensis Jehamalar, Basu and Zettel, Amemboa bifurcata Basu, Subramanian and Polhemus and Amemboa mahananda Basu, Subramanian and Polhemus have been already described as new species and published elsewhere.

Journal of Biological Control, 2018

In the present study, a total of eight species of aquatic and semi-aquatic Hemiptera collected fr... more In the present study, a total of eight species of aquatic and semi-aquatic Hemiptera collected from India were identified based on morphology and mitochondrial cytochrome oxidase gene I (COI). Details of morphology based identification and the utility of COI gene to identify the aquatic Hemiptera is discussed in this paper.

FIGURE 1. Distribution records of Metrocoris sikkimensis sp. nov.

Journal of Biological Control, 2018