Eurysternus hamaticollis Balthasar, 1939

Chamorro, William, Marin-Armijos, Diego, senjo, Angelico & Vaz-De-Mello, Fernando Z., 2019, Scarabaeinae dung beetles from Ecuador: a catalog, nomenclatural acts, and distribution records, ZooKeys 826, pp. 1-343 : 139-141

Eurysternus hamaticollis Balthasar, 1939 Plate 30C

Eurysternus hamaticollis Balthasar, 1939g: 113 (original description. Type locality: Guiana (Godebert-Maroni), Bolivia (Buenavista bei), and Brazilien [= Brazil]).

Eurysternus hamaticollis : Blackwelder 1944: 197 (list of species from Latin America); Vulcano and Pereira 1967: 547 (characters in key); Jessop 1985: 1093 (characters in key), 1101 (distribution); Medina et al. 2001: 135 (cited for Colombia); Hamel-Leigue et al. 2006: 16 (cited for Bolivia); Génier 2009: 240 (redescription), 291 (characters in key); Camero 2010: 150 (characters in key), 166 (diagnosis); Carvajal et al. 2011: 314-315 (cited for Ecuador); Bezdek and Hajek 2012: 316 (catalog of type NMPC); Krajcik 2012: 107 (complete list of species); Solís and Kohlmann 2012: 7 (cited for Costa Rica); Ratcliffe et al 2015: 195 (cited for Peru); Chamorro et al. 2018: 95 (cited for Ecuador).

Eurysternus (Eurysternus) s. str. hamaticollis : Martínez 1988a: 283 (distribution); Vaz-de-Mello 2000: 193 (list of species for Brazil).

Type specimens.

Eurysternus hamaticollis Balthasar, 1939. The lectotype (♂) is deposited at the MSMF (see Génier 2009: 241). Locality: French Guiana, Godebert-Maroni, not examined.

Distribution.

Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Peru, and Venezuela.

Records examined.

ORELLANA: Comunidad Kiwcha Chiruisla Station, 180-250 m (1 specimen MQCAZ); Dayuma Campo Hormiguero, plataforma Hormiguero, 320 m (1 specimen MUTPL); Dayuma Campo Palanda, 235 m, plataforma Primavera 1 (1 specimen MUTPL); Dayuma plataforma Ungurahua, 300 m (1 specimen MUTPL); El Dorado plataforma Guarango, 300 m (1 specimen MUTPL); Estación Científica Yasuní PUCE, 250 m, Parque Nacional Yasuní (8 specimens MQCAZ); Estación de Biodiversidad Tiputini USFQ, Parque Nacional Yasuní, 200 m (3 specimens MUTPL); Estación Río Huiririma, 220 m (1 specimen MQCAZ); Rodrigo Borja IAMOE (2 specimens CEMT); San Sebastian del Coca, Comuna Guataraco, 345 m, Campo Pata (1 specimen MUTPL); San Sebastian del Coca, 345 m, Comuna Shamanal Campo Palo Azul (1 specimen MUTPL); Lago San Pedro, plataforma Copal, 310 m (1 specimen MUTPL). PASTAZA: Bosque Protector Oglán Alto, 555-660 m (1 specimen MUTPL); Pandanuque, 420 m (2 specimens MUTPL). SUCUMBÍOS: Tarapoa, Nuevo Manabí, 270 m (1 specimen MUTPL).

Literature records.

NAPO [= ORELLANA]: Scyasuni, 200 m ( Génier 2009: 242). ORELLANA: Estación Científica Yasuní PUCE, 250 m ( Génier 2009: 242); Estación de Biodiversidad Tiputini USFQ, Parque Nacional Yasuní, 220 m ( Génier 2009: 242); Río Yasuní Site No. 2 ( Génier 2009: 242). PASTAZA: Alto río Bobonaza, Oriente ( Génier 2009: 242). SUCUMBÍOS: 2 km N de Limoncocha, 250 m ( Génier 2009: 242); Dureno río Aguarico, 150 m ( Génier 2009: 242); La Selva Lodge, 150 km down Río Napo from Coca ( Génier 2009: 242); Limoncocha, 250 m ( Génier 2009: 242); Lombaqui [= Lumbaqui], 800 m ( Génier 2009: 242).

Temporal data.

Collected in every month except January and July.

Remarks.

Inhabits the lowland evergreen forests and evergreen foothill forests of the Amazon region from 180-800 m a.s.l. Collected manually and with pitfall traps baited with carrion and human feces.