On the genus Hydrometra Latreille (Hemiptera: Heteroptera: Hydrometridae) from India with description of two new species Author Jehamalar, E. Eyarin Author Chandra, Kailash text Zootaxa 2014 3779 5 501 517 journal article 46202 10.11646/zootaxa.3779.5.1 7727743d-fbd4-4802-ae1a-8025d7987955 1175-5326 227624 6B08D969-5277-4CFE-8F90-DAB07755D272 Hydrometra greeni Kirkaldy, 1898 ( Figs. 1E–F , 2E–F , 3E–F , 4E–F , 5E–F ) Hydrometra greeni Kirkaldy, 1898 : 2 ( type locality: Pundaloya, Sri Lanka ). Material examined. INDIA , ANDAMAN AND NICOBAR ISLANDS , Andaman District , South Andaman, Gandhi Park, 269 ft . N 11°39.693’ , E 92°44.660’ , 1.iii.2012 , 1 ♂ (brapt.), 1 ♀ (mac.), Coll. E. Eyarin Jehamalar, (Reg. No. 3155/H15); South Andaman, Wandoor, 35 ft , N 11°35.787’ , E 92°37.183’ , 5.iii.2012 , 1 ♂ (mac.), Coll. E. E. Jehamalar, (Reg. No. 3156/H15). CHHATTISGARH, Bilaspur District, Karidongri Rest House, 380 m , N 22°20’55.1’’ , E 81°36’33.8’’ , 19.ix.2012 , 5 ♂ (mac.), 2 ♀ (mac.), Coll. A. Raha & Party, (Reg. No. 2836/H15); Durg District, Balod Beat, N 20°42’49.6’’ , E 81°09’43.9’’ , 25.ix.2012 , 1 ♂ (mac.), Coll. A. Raha & Party, (Reg. No. 2806/H15); Kabirdham District, Rangakhara Rest House, 651 m , N 21°57’35.2’’ , E 80°52’54.7’’ , 6.vi.2012 , 1 ♂ (mac.), Coll. A. Raha & Party, (Reg. No. 2730/H15); Kawardha Range, Saroda Dam, 469 m , N 21°58’34.3’’ , E 81°08’25.4’’ , 22.ix.2012 , 1 ♂ (mac.), Coll. A. Raha & Party, (Reg. No. 2794/H15); Korba District, Sericultural farm, 1.vi.2012 , 1 ♀ (mac.), Bijakhara nala, 182 m , N 22°19’42’’ , E 83°4’1.7’’ , 1.xi.2011 , 1 ♂ (mac.), 1 ♀ (brapt.), 1 ♀ (mac.), Coll. K. Chandra & Party, (Reg. No. 2729/H15); Bijakhara Nala, 324 m , N 22°24’50’’ , E 83°0’34’’ , 1.vi.2012 , 1 ♂ (mac.), 1 ♀ (brapt.), 1 ♀ (mac.), Coll. K. Chandra & Party, (Reg. No. 2731/H15); Koriya District, GGNP , Kotadole, Meur River near FRH, 483 m , N 23°43’41.1’’ , E 82°03’49.9’’ , 10.v.2013 , 1 ♂ (mac.), 1 ♀ (mac.), Coll. A. Raha & Party, (Reg. No. 3125/H15); GGNP , Kotadole, Basin Path, Jalpani Forest, 604 m , N 23°45’49.6’’ , E 82°09’13.4’’ , 11.v.2013 , 1 ♂ (mac.), 1 ♀ (mac.), Coll. A. Raha & Party, (Reg. No. 3124/H15); Raipur District, Barnawapara WLS, 157 m , N 21°25’61.7’’ E 82°27’81.5’’ , 7.vii.2011 , 1 ♂ (mac.), 1 ♀ (mac.), Coll. Sunil & Party, (Reg. No. 2796/H15); Dullibahal pond, 1.xi.2011 , 8 ♂ , 1 ♀, Coll. Anil & Angshuman, (Reg. No. 2540/H15); Surguja District, Ambikapur Range, Bilgumpha, 628 m , N 23°19’14.7’’ , E 83°12’16.7’’ , 14.ix.2012 , 2 ♂ (mac.), 4 ♀ (mac.), Coll. A. Raha & Party, (Reg. No. 2793/H15); Tara Range, Lekhutdand, 632 m , N 22°49’47.7’’ , E 82°44’3.5’’ , 15.ix.2012 , 1 ♂ (mac.), 1 ♀ (mac.), Coll. A. Raha & Party, (Reg. No. 2795/H15); Tara Forest Rest House, 617 m , N 22°50’01.0’’ , E 82°44’19.1’’ , 16.ix.2012 , 4 ♂ (mac.), 4 ♀ (mac.), Coll. A. Raha & Party, (Reg. No. 2835/H15); Tara Range, Abhay Nala, 601 m , N 22°53’34.4’’ , E 82°43’45.1’’ , 17.ix.2012 , 9 ♂ (mac.), 2 ♀ (mac.), Coll. A. Raha & Party, (Reg. No. 2837/H15); Ramkola Range, Tamor-Pingla WLS, Pingla Nala, 565 m , N 23°38’46.8’’ , E 82°59’42.6’’ , 14.v.2013 , 2 ♀ (mac.), Coll. P. Dawn, (Reg. No. 3087/H15); Ramkola, Tamor-Pingla WLS, Debijharia, 556 m , N 23°38’30.3’’ , E 82°59’7.3’’ , 15.v.2013 , 1 ♀ (mac.), (Reg. No. 3127/H15)., 17.v.2013 , 3 ♀ (mac.), (Reg. No. 3128/H15), Coll. A. Raha & Party. HARYANA, Karnal District, Kartarpur, 11.iii.1971 , 6 ♂ (mac.), 6 ♀ (mac.), Coll. A. Singh, (Reg. No. 3066/H15); MAHARASHTRA, Nasik District, Nandur Madhmeshwar Bird Sanctuary, Niphad, Near Godavari River, 3.iii.2013 , 1 ♀ (mac.), Coll. M.E. Hassan & Party, (Reg. No. 3047/H15). ODISHA, Mayurbhanj District, Near Simlipal Hills, Lulung, 15.ii.1975 , 1 ♂ (mac.), Coll. R.I. Chowdhury & Party, (Reg. No. 3064/H15). TAMIL NADU , Kanyakumari District, Nagercoil, Pond in Scott Christian College campus, 60 m , N 08°10’58.2’’ , E 077°24’20.3’’ , 4.iii.2008 , 1 ♂ ., 20.viii.2008 , 2 ♂ (mac.), Coll. E. E. Jehamalar, (Reg. No. 2538/H15)., 22.x.2012 , 1 ♀ (mac.), Coll. E. E. Jehamalar & Ahila, (Reg. No. 2820/H15); Karavilai village, 30.viii.2008 , 1 ♀, Coll. Jenila, (Reg. No. 2539/H15). All the examined materials are deposited in ZSI , Kolkata. Diagnosis. Mostly occur in macropterous form, mac. ♂ length range 10.09–11.12, n=5 and mac. ♀ 10.57– 10.95, n=5; anteclypeus conical with acute tip ( Fig. 2F ); seventh abdominal sternum of male with deep broad transverse depression (very prominent in lateral view), sternites 6 and 7 with dispersed long setae ( Fig. 4E ); median longitudinal white stripe on hemelytra interrupted by 3–5 brownish hue ( Figs. 1E, F ); females can easily be identified by posteriorly raised abdominal segment VII and the ventro-caudad caudal process ( Figs. 3F , 5F ). Distribution. INDIA : Andaman and Nicobar Islands , Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Gujarat, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Odisha, Puducherry , Rajasthan, Tamil Nadu, Uttar Pradesh and West Bengal. Elsewhere: Bangladesh , China , Indonesia , Laos , Malay Peninsula, Myanmar , Nepal , Singapore , Sri Lanka , Thailand and Vietnam ( Polhemus & Polhemus, 1995 , Tran et al ., 2010 , Yang & Zettel, 2005 and Zettel, 2006 ). Remarks. This species is distributed throughout India . H. greeni is often attracted to lights and can be found on moist leaf litter far from the freshwater bodies; thus it has very good dispersal ability. This species sometimes is found along with H. butleri . The males of H. greeni are readily identifiable by the depression on sternum VII, whereas H. butleri has a swollen sternum VII. The females of these two species can be separated by the strongly raised segment VII in H. greeni , which is flat in H. butleri . The caudal process of female H. greeni is directed ventro-caudad, but in H. butleri , it is directed straight caudad with setal fringe. Earlier records of H. maindroni by Polhemus & Starmühlner (1990) from the Andaman Islands is doubtful because H. maindroni was described from Oman , Muscat ( Hungerford & Evans, 1934 ; Andersen, 1995 ); later this species was reported from the United Arab Emirates ( Linnavuori et al. 2011 ). In our present collection we examined a few examples of H. greeni from Andaman and Nicobar Islands , among these we have not observed any H. maindroni .