New records of suctorians (Ciliophora: Suctoria) as epibionts of aquatic true bugs (Hemiptera: Prosorrhyncha: Nepomorpha) from two regions: Mexico and Eastern Europe Author Mariño-Pérez, Ricardo Author Dovgal, Igor Author Mayén-Estrada, Rosaura text Zootaxa 2011 2798 48 60 journal article 10.5281/zenodo.277026 7a56a707-d858-4f9a-9925-8b299760cae4 1175-5326 277026 Discophrya lichteinsteinii ( Claparède et Lachmann, 1859 ) Fig. 1 e. Suctorian ciliate with flattened, disc-shaped or elongate body. Macronucleus ovoid, centrally located. Contractile clavate tentacles evenly distributed over all edge of body, but in some cases only at apical part. Stalk cup-shaped or elongate, with different length ( Dovgal & Kochin, 1997 ), uniformly expanding upwards, with transversal folds. There are up to three contractile vacuoles. Reproduction by inversogemmic budding. Dimensions: body length 25–180; body width 15–160; macronucleus 5–7 x 12–16 , stalk length 17–192; stalk diameter 4–7; length of the tentacles 6–28. Previous measurements: body length 29–180; body width 36–130. Material examined. Found as epibiont of: Ranatra linearis . Ukraine . Small lake in high-water bed of Goryn’ river near village Velyky Tceptcevichi, Rovno region. 11.07.1985 . Small lake in high-water bed of river Goryn’ near village Zbuzh, Rovno region. 0 6.07.1985. Plea leachi . Ukraine . River Unava near Fastov city, Kiev Region. 30.05.2004 . Ambrysus sp. 2. Mexico . River Cuichat. State of Puebla. 980 m . a.s.l.. ( 20° 00’ 32” N ; 97° 30’ 46’’ W ). 19.03.2010 . Additional records. On Cybister , Dysticus , Graphoderes Thomson , Haliplus Latreille , Peltodytes Régimbart , Brychius Thomson , Graptodytes pictus Fabricius , Hyphydrus ovatus Linnaeus , Coelambus impressopunctatus (Schaller) , Hyphydrus Illiger , and Potamonectes elegans (Panzer) ( Matthes et al. 1988 ) . Aquatic coleopterans (families Dysticidae, Haliplidae ) ( Matthes et al. 1988 ). On Astacus Fabricius ( Morado & Small, 1995 ) .