Heteragrion Selys, 1862

Mauffray, William F. & Tennessen, Kenneth J., 2019, A Catalogue and Historical Study of the Odonata of Ecuador, Zootaxa 4628 (1), pp. 1-265 : 81-84

Heteragrion Selys, 1862

Medium to large damselflies; the species in Ecuador are usually brown and black with yellow to yellowish orange markings ( Fig. 43 ). Adults perch at an angle on stems and twigs mostly in shade or small sunny spots. Eight species have been recorded in Ecuador, but there is potential for undescribed species to be discovered as the genus is in need of revision. For identification see Williamson (1919), Lencioni (2005) and Vilela et al. (2019). Heckman (2008) is useful for narrowing down some of the choices but we advise caution in using this reference for this genus.

Heteragrion aequatoriale Selys, 1886 . Publ. Recs. ECU: Kirby (1890), Williamson (1919), Campos (1922), Schmidt (1942), Paulson (1983), Tsuda (1986, 1991), Steinmann (1997a), (H08), (P11), (H14); MS: Tennessen (2006); PA: *Selys (1886—description). Also PER: (H08), (P16) plus COL: (P&P), (P16).

Addl. Data. CT, Sigchos: 1 ♀, San Francisco de las Pampas, Río Esmeraldes (-0.43, -79.0, 1219m), 4 iv 1997, leg. E. Tapia, det. JJD [FSCA]. MS, Gualaquiza: 1 ♀, Gualaquiza (-3.40, -78.58, 800m), v 1935, leg. F. Campos, det. MJW [ANSP]; Morona: 9 ♂♂, 1 ♀, forested stream 0.3 km past [N] Río Albanico, 19.8 km W of Macas on Guamote Road (-2.2494, -78.2022, 1540m), 17 ix 2005, leg. & det. JJD [JJD, RWG]; 1 ♂, same data but leg. & det. KJT [RWG]: 1 ♂, same data but 18 ix 2005, leg. & det. WFM [FSCA]; 8 ♂♂, 1 ♀, small stream, 20.1 km W of Macas, road to Guamote (-2.2489, -78.2031), 17 ix 2005, leg. & det. KJT [KJT]; NA, Archidona: 1 ♂, 2 ♀, stream 47.4 km W of Loreto (1095m), 14 vi 1995, leg. & det. KJT [KJT]; 2 ♂♂, same data but leg. & det. SWD [SWD]; 1 ♂, stream/waterfall, Loreto Road, 44 km E of Baeza-Tena Road, 15 vii 1996, leg. & det. KJT [KJT]; 1 ♂, stream/waterfall, Loreto Road, 40.2 km E of Baeza-Tena Road, 15 vii 1996, leg. & det. KJT [KJT]; 1 ♂, Baeza 10.6 km S on Hwy. 45, near Bermejo, seepage marsh, 24 vii 1996, leg. SWD, det. JJD [SWD]; PA, Mera: 4 ♂♂, small trib. of Río Anzu, 12.0 km N of Mera (-1.4181, -78.0528, 1190m), 21 ix 2005, leg. & det. KJT [KJT]; 2 ♂♂, same data but 6 x 2009, leg. & det. JTJ [JTJ]; 3 ♂♂, Río Metolo , Los Copales cabanas between Mera and Shell, W of Puyo , Hwy. 50, 19 ix 2005, leg. & det. JJD [JJD]; 6 ♂♂, between Mera and Shell, Los Copales trails and forest N of Río Metolo (-1.4886, -78.0708, 1070m), 20 ix 2005, leg. & det. WFM [FSCA]; 1 ♂, Mera , 12 km NE Río Anzu (-1.4181, -78.0528, 1190m), 21 xi 2005, leg. & det. WFM [LSAM]; Pastaza: 1 ♂, stream 94.0 km N of Sucua , Hwy. 45, 9 xi 1997, leg. & det. JJD [JJD]; 2 ♂♂, stream 5.5+ km SE off Hwy . 45 (trib. of larger river), N of Puyo (-1.3606, -77.8653, 900m), 9 x 2009, leg. & det. JTJ [JTJ].

Heteragrion angustipenne Selys, 1886 . Publ. Recs. ECU: *Selys (1886), Kirby (1890), Campos (1922), Schmidt (1942), Kimmins (1970 — Lectotype from “ Ecuador ” [BMNH]), Davies & Tobin (1984), Tsuda (1986, 1991), Bridges (1993), Steinmann (1997a), (L05), (H08), (P11), (H14). Also BRA, PER: (L05), (H08), (P11).

Addl. Data. MS: Huamboya [FSCA, KJT, RWG]; Limón Indanza: [JJD, RWG]; NA, Archidona: [FAL, KJT, RWG]; OR, Francisco de Orellana: [KJT, SWD]; Loreto: [FSCA, JTJ]; PA, Mera: [FSCA, JJD, KJT]; Pastaza: [FSCA, JTJ, KJT, USNM]; Santa Clara: [FSCA]; SU, Shushufindi: [JTJ]; ZC, El Pangui: [FSCA, KJT]; Yantzaza: [USNM].

Heteragrion bariai De Marmels, 1989 . Publ. Recs. ECU: (L05), * Daigle (2005), (H08), (P11), (H14). Also BRA, PER, VEN: (L05), (H08), (P11); plus COL: (P16).

Addl. Data. NA, Tena: 5 cop. pairs, 7 ♂♂, 2 ♀♀, Río Chinchipino, 27 km E of Puerto Napo (-1.0728, -77.5864, 385m), leg. & det. KJT [FAL, KJT, RWG]; 1 ♂, 1 ♀, same data but 13 vii 1996, leg. & det. JJD [JJD]; 2 ♂♂, same data but 10 x 2009 [JTJ]; 1 ♂, Puerto Napo 11.2 km E of Hwy. 45 on J.S.B.S. Road, Río Tiyuyacu (-1.0516, -77.7017, 400m), 23 vii 1996, leg. WFM, det. JJD [FSCA]; 5 ♂♂, 1 ♀, 23 km E of Puerto Napo, J.S. B.S. (400m), 17 x 1988, leg. SWD, det. JJD [FSCA, SWD]; OR, Francisco de Orellana: 2 ♂♂, across Río Napo from La Selva, streams in hill forest, 13 x 1988, leg. SWD, det. JJD [SWD]; 1 ♂, P.N.Y., Río Savaleto, km marker 31, 17 vii 1996, leg. & det. KJT [KJT]; 1 ♂, P.N.Y., Yasuni Biological Research Station along trails and roads within 5 km of Res. Sta. (-0.6719, -76.3992, 244m), 29 viii 2000, leg. T. Emmel, det. KJT [FSCA]; La Joya de los Sachas: 1 ♂, east of La Joya de los Sachas, small stream, (-0.2838, -6.7817, 265m), 29 x 2013, leg. & det. KJT [FSCA]; Loreto: 9 ♂♂, Loreto, 8.5 km E on road to Coca Road rocky gravel stream (-0.6183, -77.2950, 400m), 14 xi 1997, leg. WFM, det. JJD [FSCA, LSAM, QZAC, USNM]; 4 ♂♂, 1 ♀, same data but leg. & det. KJT [KJT]; 3 ♂♂, same data but 18 xi 1997, leg. & det. KJT [KJT]; 2 ♂♂, small streams and forest trails 12 km E of Loreto, 2+ km S of Hwy. 45 (-0.6217, -77.2600, 365m), 12 x 2009, leg. & det. JTJ [JTJ]; SU, Cascales: 1 ♂, 37 km W of Lago Agrio , river, 20 viii 1980, leg. SWD, det. JJD [SWD]; Lago Agrio: 1 ♂, Santa Cecilia. Río Francisco de Orellana, 25–31 iii 1969, leg. P. & P. Spangler, det.? [USNM]; Shushufindi : 1 ♂, Limoncocha , forest stream (-0.40, -76.62, 300m), 6 iii 1972, leg. D. Pearson, det. JJD [FSCA, DRP]; 14 ♂♂, Limoncocha , Río Napo (-0.40, -76.62, 300m), 10–17 xi 1980, leg. MJW, det. JJD [FSCA]; 1 cop. pair, 7 ♂♂, 1 ♀, Limoncocha , 22–23 viii 1980, leg. SWD, det. JJD [SWD]; 1 ♂, 1 tan. pair, stream 1.2 km E of jct. Coca Road & Shushufindi Road, 16 vii 1996, leg. & det. KJT [KJT]; 1 ♀, small stream SW of Shushufindi , (-0.2067, -76.6919), 29 x 2013, leg. & det. KJT [FSCA].

Note: Previously often referred to as “ Ecuador sp. A.”

Heteragrion bickorum Daigle, 2005 . Publ. Recs. ECU: (H08), (P11); NA: * Daigle (2005), OR: * Daigle (2005), von Ellenrieder & Garrison (2011), (H14); SU: * Daigle (2005 —as “ Napo ” cop. pair Holotype & Allotype: Limoncocha (-0.40, -76.62, 300m), 25 viii 1980, leg. SWD, [FSCA]). Also PER: (P16); COL: Bota-Sierra et al. (2018).

Addl. Data. MS: Huamboya: 3 ♂♂, 1 tan. pair, Huamboya N on Hwy. 45, small flowing stream in forest (-1.80, -77.95, 884m), 16 ix 2005, leg. & det. WFM [FSCA, QZAC, USNM]; NA, Carlos Julio Arsemena Tola: 5 ♂♂, 19.3 km S of Puerto Napo at Zetzayco (-1.0594, -77.6428, 460m), 21 vii 1996, leg. SWD, det. JJD [FSCA, RWG]; 1 ♂, same data but leg. & det. KJT [KJT]; Tena: 1 ♂, 1 ♀, Río Chinchipino , 27 km E of Puerto Napo (-1.0728, -77.5864, 385m), 13 vii 1996, leg. & det. KJT [KJT]; 2 ♂♂, Puerto Napo, 2nd stream E of Río Sinde on J.S.B.S. Road , 23 vii 1996, leg. SWD, det. JJD [FSCA]; 2 ♂♂, stream, Puyo Road, 7.1 km S of Río Napo, 21 vii 1996, leg. & det. KJT [KJT]; 3 ♂♂, stream, road to J.S. B.S., 16.8 km E of Puerto Napo (385m), 22 vii 1996, leg. & det. KJT [KJT]; 2 ♂♂, same data but leg. SWD, det. JJD [FSCA]; 2 ♂♂, J.S. B.S., 23 km E of Puerto Napo; tropical wet forest, streams above flood plain (-1.0500, -77.7833, 450m), 16–17 x 1988, leg. SWD, det. JJD [FSCA]; OR, Francisco de Orellana: 1 ♂, P.N.Y., small stream, 2.3 km E of Sci. Research Sta., 9 vi 1995, leg. & det. KJT; 2 ♂♂, 3 ♀♀, P.N.Y., stream, Maxus 29 & 30 road, 1.8 km W of jct. with Waorani Road , 10 vi 1995, leg. & det. KJT [KJT]; 6 ♂♂, same data but 18 vii 1996 [KJT]; 2 ♂♂, same data but leg. SWD, det. JJD [FSCA]; 3 ♂♂, P.N.Y., small stream, road to Waorani Reserve, 3.6 km S of turn to Sci . Res. Sta., 10 vi 1995, leg. & det. KJT [KJT]; 3 ♂♂, same data but 18 vii 1996 [KJT]; 1 ♂, P.N.Y., small stream, road to Waorani Reserve , 5.6 km S of turn to Sci . Res. Sta. , 10 vi 1995, leg. & det. KJT [KJT]; 1 ♂, P.N.Y., small stream, km 38 on Yasuni Road , 12 vi 1995, leg. & det. KJT [KJT]; 1 ♂, P.N.Y., small stream, 5.1 km down Waorani Road (200m), 16 xi 1997, leg. & det. KJT [KJT]; 1 ♂, T. B.S., USFQ, Parahuaco trail between markers 300–1300 (-0.6397, -76.1453, 229m), 21 i 2009, leg. & det. RWG & NVE [USFQ]; 2 ♀♀, T. B.S., USFQ, along Guacamayo trail at marker 800 (-0.6314, -76.1608, 241m), 16 i 2009, leg. & det. RWG & NVE [NVE, RWG]; 2 tan pairs, 15 ♂♂, T. B.S., USFQ, Parahuaco trail between markers 300–1300 (-0.6397, -76.1453, 229m), 16–21 i 2009, leg. & det. RWG & NVE [DRP, RWG, USFQ]; 2 tan. pairs, 10 ♂♂, 3 ♀♀, T. B.S., USFQ, stream crossing Chorongo trail at marker 225 (-0.6350, -76.1503, 220m), 16–18 i 2009, leg. & det. RWG & NVE [NVE, RWG, USFQ]; 1 ♂, T. B.S., USFQ, along Chichico trail (-0.6300, -76.1525, 250m), 12 i 2009, leg. & det. RWG & NVE [USFQ]; 16 ♂♂, T. B.S., USFQ, stream crossing Chorongo trail (-0.6378, -76.1486, 224m), 11–16 i 2009, leg. & det. RWG & NVE [NMNHL, NVE, RWG, USFQ]; 2 tan. pairs, 18 ♂♂, 2 ♀♀, T. B.S., USFQ, stream crossing Matapalo trail at marker 450 (-0.6369, -6.1458, 245m), 14–18 i 2009, leg. & det. RWG & NVE NVE, RWG, USFQ]; 1 ♀, T. B.S., USFQ, stream crossing Numa trail at marker 100, muddy bottom, shady (-0.6383, -76.0103, 220m), 10 i 2009, leg. & det. RWG & NVE [USFQ]; Loreto: 2 ♂♂, stream, Loreto Road, 8.5 km E of Loreto (-0.6183, -77.2950, 400m), 20 vii 1996, leg. & det. KJT [KJT]; 1 ♂, same data but 14 xi 1997 [KJT]; 1 cop. pair, same data but leg. WFM, det. JJD [FSCA]; PA, Mera : 3 ♂♂, Río Metolo, Los Copales, between Mera and Shell, Hwy. 50 (-1.4919, -78.0725, 1070m), 19 ix 2005, leg. & det. KJT [KJT]; 5 ♂♂, same data but leg. & det. WFM [FSCA, LSAM, QZAC, USNM]; Pastaza: 1 ♀, small stream, 2 km S of Comunidad Chuwitayo, road between Macas & Puyo, 9 xi 1997, leg. & det. KJT [KJT]; 1 ♂, Río Sandalias , 5 km S of Puyo, Hwy. 45 (-1.5003, -77.9522, 1000m), 11 xi 1997, leg. & det. KJT [KJT]; SU, Shushufindi : 26 ♂♂, La Selva, 100 km E Coca , streams in hill forest S of Napo River (-0.54, -76.54, 262m), 13 x 1988, leg. SWD, det. RWG [RWG, USNM]; 28 ♂♂, 1 ♀, same data but det. JJD [FSCA]; 1 ♀, Limoncocha , forest trail (-0.4000, -76.6167, 269m), 10 i 1972, leg. D. Pearson, det. DRP [DRP]; 14 ♂♂, 3 ♀♀, same data but 28 viii 1980, leg. SWD, det. JJD [FSCA, SWD]; 3 ♂♂, 1 ♀, same data but Río Napo, 23–28 viii 1980, leg. SWD, det. RWG [FSCA, RWG]; 1 ♂, same data but 28 viii 1980, leg. & det. KWK [RWG]; 7 cop. pairs, 60 ♂♂, 1 ♀, same data but 1–25 xi 1980, leg. MJW, det. JJD [FSCA]; 2 ♂♂, trails, small streams 3 km W of Shushufindi, 2+ km N off Hwy. 26 at km marker 17 (-0.1664, -76.6917, 290m), 14 x 2009, leg. & det. JTJ [JTJ].

Note: This species is taxonomically very close to H. bariai . Heckman (2008) suggested that more research is necessary to resolve the relationship between the two taxa. We are retaining it as a distinct species pending further study. It was often referred to as “ Ecuador sp. B.”

Heteragrion cooki Daigle & Tennessen, 2000 . Publ. Recs. ECU: Paulson (2004a), (H08), (P11); Lencioni (2014), (H14); EO: * Daigle & Tennessen (2000), Rivas-Torres et al. (2017); GY: Tennessen & Johnson (2008); LJ: Tennessen & Johnson (2008); LR: * Daigle & Tennessen (2000 —as “ Pichincha ” Allotype: [Buena Fé], Río Palengue Biological Station, 47 km S of Santo Domingo de las Colorados (183m), 8 x 1988, leg. SWD [FSCA]); SD: * Daigle & Tennessen (2000 —as “ Pichincha ”, Holotype: stream, W of Hotel Tinalandia, Hwy. 30, about 9 km W of Alluriquin, 31 i 1997, leg. JJD [FSCA]).

Addl. Data. BO, Caluma: [JTJ, KJT]; CN, La Troncal: [RWG]; EO, Piñas: [RWG]; GY, Balao: [JTJ]; Naranjal: [FSCA]; LJ, Catamayo: [JTJ]; LR, Buena Fé: [DRP, FAL, FSCA, RWG, SWD]; Montalvo: [KJT]; Quevedo: [JTJ, KJT]; MN, El Carmen: [JTJ]; Flavio Alfaro: [KJT]; Pedernales: [JTJ, KJT]; SD: [DRP, FAL, FSCA, JJD, JTJ, KJT, RWG, SWD].

Note: This endemic, Pacific slope form was often referred to as “ Ecuador sp. E.”

Heteragrion erythrogastrum Selys, 1886 . Publ. Recs. ECU: (H08), (P11), (H14); ES: * Daigle et al. (1997). Also CEN, COL: (H08), (P11).

Addl. Data. ES, San Lorenzo: 6 ♂♂, stream 36.5 km N[NW] of Lita , 3 ii 1997, leg. & det. KJT [KJT, SWD]; 2 ♂♂, same data but leg. E. Tapia, det. KJT [FAL, FSCA]; MN, Junin: 1 ♀, Palmar, Playones (-0.9333, -80.2333, 200m), 6 v 1941, leg. D. Laddey, det. RWG [RWG]; 1 ♂, same data but 15 v 1941 [RWG]; 1 ♂, same data but 25 iv 1941 [RWG]; SD: 1 ♂, Santo Domingo de los Colorados , about 15 km east, “Hacienda La Lorena ” (-0.3097, -79.0389, 700m), 22 ii 1941, leg. D. Laddey, det. RWG [RWG]; 2 ♂♂, same data but 25 ii 1941 [RWG]; 1 ♂, same data but 26 ii 1941 [RWG].

Note: Southernmost records for this common Central American species.

Heteragrion inca Calvert, 1909 . Publ. Recs. ECU: (L05), Daigle (2005), (H08), (P11), (H14); OR: von Ellenrieder & Garrison (2011); Also BOL, BRA, PER: (L05), (H08), (P11); plus COL: (P16).

Addl. Data. NA, Archidona: [FSCA]; Tena: [DRP, FSCA, JTJ, RWG, SWD, SWD]; Carlos Julio Arosemena Tola: [FSCA]; OR, Francisco de Orellana: [FSCA, KJT, RWG, SWD, TWD, USNM]; Loreto: [FSCA, TWD, USNM]; PA, Mera: [KJT]; Pastaza: [FSCA, JTJ]; Santa Clara: [RWG]; Shushufindi: [FAL, FSCA, RWG].

Note: Often referred to in collections as “ Ecuador sp. C”; variation in H. inca male cerci throughout its range deserves further taxonomic research.

Heteragrion peregrinum Williamson 1919 , Publ. Recs. (H14 as “cf.”) ES, Quininde: 1 ♂, 1 ♀, Río Canande Re- serve, 35 km NE of Quininde, tributary of Río Hoja Blanca, small gravel stream in forest, shady gap next to stream (0.5264, -79.2122, 345m), 21 x 2012, leg. & det. WAH, data provided by RWG, checked by RWG. Also: COL Palacino et al. (2017).

Note: Bota-Sierra et al. (2016) reported this species as “Critically Endangered, Possibly Extinct,” but it has been found recently; therefore, “possibly extinct” no longer applies and we propose that it needs to be reassessed.

Figures

FIGURE 43. Heteragrion angustipenne ♂, ECUADOR, Orellana Prov., small forest stream, near Loreto, 14 v 2009; photo K. J. Tennessen.