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ISSN 0375-1511 Rec. zool. Surv. India: 113(Part-1): 183-195,2013 ON A COLLECTION OF AQUATIC AND SEMI-AQUATIC BUGS (HEMIPTERA: HETEROPTERA) FROM CHHATTISGARH, INDIA E. EYARIN JEHAMALAR AND KAILASH CHANDRA Zoological Survey of India, M-Block, New Alipore, Kolkata - 700 053 INTRODUCTION 2005. Hydrometra greeni Kirkaldy: Yang & Zettel., Raff. Bull. Zool., 53(1): 84. Aquatic Heteroptera occupy a broad spectrum of aquatic habitats, have a multitude of Material examined: Bilaspur Dist., 5 mac. ~,2 shapes, and are adapted to a broad variety of mac. 'f. exs., Karidongri Rest House, 19.ix.2012; niches (Spencer and Andersen, 1994). The aquatic Durg Dist., 1 ~ ex., Balod Beat, 25.ix.2012; and semi aquatic groups of insects represent a Kabirdham Dist., 1 ~ex., Rengakhar RH,6.vi.2012; significant level of diversity in India (Ghosh, 1 mac. ~ ex., Kawardha Range, Saroda Dam, 1996). Aquatic hemipterans stand out as an 22.ix.2012, ColI. A. Raha & Party; Korba Dist., 1 'f. important group of aquatic insects, which are considered important in environmental ex., Sericultural Farm, 1.vi.2012., 1 ~ , 2'f. exs., reclamation of aquatic habitats and are often used Bijakhara Nala, 1.vi.2012, ColI. K. Chardra & to gauge toxins in an environment (Jansson 1987; Party; Raipur Dist., 8 ~ , 1'f. exs., Dullibahal, Papacek 2001; Wollmann 2001). The true bugs 1.xi.2011, ColI. A. Sarsavan & A. Gangopadhyay; practice extra-oral digestion and may be 1 mac. ~,1 mac. 'f., Barnawapara WLS, 7.vii.2011, predaceous, phytophagous, granivorous, or ColI. S.K. Gupta & Party; Surguja Dist., 1 mac ~,1 ectoparasitic, or they may use combinations of mac 'f., Tara Range, Lekhutdand, 15.ix.2012; 2 several modes of feeding (Haddad et al., 2010). mac. ~, 4 mac. 'f. exs., Ambikapur Range, Williams (1996) have pointed out that Bilgumpha, 14.ix.2012; 4 mac. ~,4 mac. 'f. exs., invertebrates inhabiting temporary streams can Tara FRH, 16.ix.2012; 9 mac. ~,2 mac. 'f., Tara, have high diversity similar to permanent streams, Abhay nala, 17.ix.2012, ColI. A. Raha & Party. therefore they should be considered in conservation plans designed to protect species Diagnosis: (Fig. lA), Body elongate with thread and their habitats. Thirumalai (2002, 2007) like legs; head longer than pronotum; eyes far from reported 128 species of Gerromorpha and 153 anterior margin of pronotum; antenna 4-segmented. species of Nepomorpha from India respectively. r t segment very short, 2nd and 4th subequal, 3m Since, there is no comprehensive account on segment longest; pronotum long; hemelytra shorter aquatic Heteroptera of Chhattisgarh, the present than abdomen. The hemelytra extends upto the 5th study is undertaken. abdominal segment in both sexes. Seventh Infraorder GERROMORPHA Popov, 1971 abdominal sternum of male depressed. Sixth and Family Hydrometridae Billberg, 1820 seventh sternum of male with dispersed hairs. Subfamily Hydrometrinae Esaki, 1927 Distribution: Andaman and Nicobar Islands, Genus Hydrometra Latreille, 1796 Arunachal Pradesh, Assam, Bihar, Chhattisgarh, 1. Hydrometra greeni Kirkaldy, 1898 Gujarat, Karnataka, Kerala, Madhya Pradesh, 1898. Hydrometra greeni Kirkaldy, Entomologist, 31: 2. Maharashtra, Odisha, Puducherry, Rajasthan, 184 Rec. zool. Surv. India Tamil Nadu, Uttar Pradesh and West Bengal. 2002. Limnogomus (Limnogonus) fossarum (Fabricius): Elsewhere: Mayanmar, Japan, Malay Peninsula, Thirumalai, Rec. zool. Surv. India, 100(1-2): 62. Philippines, Sri Lanka, Thailand and Vietnam. Material examined: Kabirdham Dist., 1 mac 1; I Remarks: The species is widely distributed all 1 mac 1- exs., Kawardha Range, Sarod a Dam, over India and is also reported to have been 22.ix.2012, ColI. A. Raha & Party. attracted towards light. Diagnosis: (Fig. lC), Body of moderate size; Family Gerridae Leach, 1815 antennae 4- jointed, 2nd and 3'd joints shortest and Subfamily Gerrinae Bianchi, 1896 nearly sub equal in length; 4th antennal joint 2. Aquarius adelaidis (Dohrn, 1860) slightly smaller than the r t joint or subequal; 1860. Aquarius adelaidis Dahrn., Stettin. ent. Ztg., 21: 408. pronotum with the mid-longitudinal carination 2002. Aquarius adelaidis (Dahrn): Thirumalai., Rec. moderately prominent, posterior tip of pronotum zool. Surv. India, 100(1-2): 60. remarkably angular; 7th abdominal segment with Material examined: Durg Dist., 18 1; (6 mac., 12 connexival spines. Pronotal lobe with median brachy.), 54 1- (17 mac., 37 brachy.) exs., Balod longitudinal yellow stripe and anterior region Range, Borid Gaon, 26.ix.2012, ColI. A. Raha & with two oblong spots. Party. Distribution: Andaman & Nicobar Islands, Diagnosis: (Fig. IB), Length male 12.3 mm, Andhra Pradesh, Arunachal Pradesh, Assam, female 15 mm; head and anterior lobe of Bihar, Chhattisgarh, Delhi, Goa, Haryana, pronotum black; base of the head ochraceous, Himachal Pradesh, Jammu & Kashmir, centroapical half of head with furrow, lateral and Karnataka, Kerala, Madhya Pradesh, apical region with dense grayish white Maharashtra, Odisha, Puducherry, Rajasthan, pubescence; antennae r t segment longer, 2nd and Tamil Nadu and West Bengal. Elsewhere: 4th subequal in length, 3'd segment shorter; apex of Bangladesh, China, Hong Kong, Indonesia, Japan, fore and mid femora with two spines; rostrum Malay Peninsula, Myanmar, Philippines, reached up to the fore coxa; scent orifice with a Singapore, Sri Lanka, Taiwan, Thailand and transverse sulcus; 8th sternum of female with a Vietnam. median longitudinal slit; connexival spines Remarks: This is an uncommon species of the surpassing the tip of abdomen in females and in genus Limnogonus in Madhya Pradesh. This males it is not surpassing the tip of abdomen; species is attracted towards light. between 7'h and 8th abdominal sternum of male 4. Limnogonus (Limnogonus) nitidus with an excavation; 8th abdominal sternum of (Mayr, 1865) male depressed; wings pale brown. 1865. Hydrometra nitida Mayr, Verh. Zool.-bot. Ges. Wien, Distribution: Andhra Pradesh, Bihar, 15:443. Chhattisgarh, Karnataka, Kerala, Madhya 2002. Limnogonus (Limnogonus) nitidus (Mayr): Pradesh, Maharashtra, Odisha, Rajasthan, Tamil Thirumalai, Rec. zool. Surv. India, 100(1-2): 62. Nadu, Uttar Pradesh and West Bengal. Elsewhere: Bangladesh, China, Indonesia, Myanmar, Nepal, Material examined: Kabirdham Dist., 1 1- ex., Philippines, Sri Lanka, Thailand and Vietnam. Bhoramdev WLS, Suuwahi Forest, 8.xi.2011, ColI. Remarks: This species is confined to lentic SK Gupta & Party. ecosystem. Diagnosis: (Fig. ID), Piceous; baso-central region of head ochraceous, anterior pronotallobe Genus Limnogonus Stal, 1868 Subgenus Limnogonus Stal, 1868 with two linear yellow stripes, near to which 3. Limnogonus (Limnogonus) fossarum suppressed; lateral margin of pronotum with fossarum (Fabricius, 1775) yellow fascia; males connexival spines short and not reaching the apex of abdomen, but in female 1775. Cimex fossarum Fabricius, Syst. Ent., 727. JEHAMALAR AND CHANDRA: On a Collection of Aquatic and Semi-Aquatic Bugs 185 very prominent connexival spines and surpassing Material examined: Bilaspur Dist., 1 'f. ex., the abdomen; scent orifice not pigmented. Hasdeo River, 18.ii.979, ColI. K. Reddiah & Party. Distribution: Andaman & Nicobar Islands, Diagnosis: (Fig. IG), Body elongate; anterior Arunachal Pradesh, Assam, Bihar, Chhattisgarh, pronotum with a single yellow spot; r t antennal Delhi, Karnataka, Kerala, Madhya Pradesh, segment longest and as long as or li ttle longer than Odisha, Rajasthan, Tamil Nadu, Tripura, Uttar the 2nd and 3'd segments together; 4th antennal Pradesh and West Bengal. Elsewhere: China, segment remarkably smaller than the r t segment; Indonesia, Malaysia, Maldives Islands, Myanmar, mid longitudinal carination of pronotum Nepal, Singapore, Sri Lanka, Thailand and indistinct and present on anterior half, male Vietnam. abdomen narrow but female abdomen stout, Remarks: Large number of this species gets scent orifice with reddish brown spot. attracted towards light. This species is also Distribution: Andhra Pradesh, Assam, Bihar, inhabited both lentic and lotic ecosystems and is Chhattisgarh, Kerala, Madhya Pradesh, Odisha, distributed throughout India. Tamil Nadu, Uttar Pradesh and West Bengal. Genus Limnometra Mayr, 1865 Elsewhere: Bangladesh, China, Iran, Japan, Java, 5. Limnometra fluviorum (Fabricius, 1798) Malay Peninsula, Myanmar, New Guinea, Oman, Philippines, Pakistan, Singapore, Sri Lanka, 1798. Cimex fluviorum Fabricius, Ent. Syst. Suppl., 543. Solomon Islands, Taiwan and Vietnam. 2002. Limnometra fluviorum (Fabricius): Thirumalai, Rec. zool. Surv. India, 100(1-2): 63. Remarks: This species is widely distributed in India and present in both lentic and lotic Material examined: Kabirdham Dist., 21;, 5 'f. ecosystem. Very few were attracted towards light. exs., Bhoramdev WLS, Jalmala Forest, 23.xi.2011, ColI. A. Sarsavan & A. Gangopadhyay. Subfamily Cylindrostethinae Matsuda, 1960 Genus Cylindrostethus Mayr, 1865 Diagnosis: (Fig. IE), Length: 11-12.5 mm; Body 7. Cylindrostethus productus (Spinola, 1840) brown colour; r t antennal segment long, 2nd, 3'd 1840. Gerris productus Spinola, Esaki. Sur less insectes and 4th segments more or less subequal in length; hemipteres rhynchotes on heteropteres, 64. head with two ochraceous stripes; pronotum with 2002. Cylindrostethus productus (Spinola): Thirumalai, a black median stripe and lateral margin with Rec. zool. Surv. India, 100(1-2): 58. black continuous fascia; lateral margin of mesonotum with a black fascia; middle coxa with Material examined: Jashpur Dist., 41;, 3'f. exs., a dorsolateral spine