Epigomphus Hagen in Selys, 1854

Mauffray, William F. & Tennessen, Kenneth J., 2019, A Catalogue and Historical Study of the Odonata of Ecuador, Zootaxa 4628 (1), pp. 1-265 : 133-135

Epigomphus Hagen in Selys, 1854

The taxonomy of this genus is in need of synoptic update as reference to scattered papers is necessary for identification ( Calvert 1920; Belle 1970, 1988b, 1996; Donnelly 1989); at least four species are known from Ecuador ( Fig. 73 ), but much more work is needed to clarify the status of others. Habitat includes small streams in forested areas.

Epigomphus hylaeus Ris, 1918 . Publ. Recs. ECU: * Tsuda (1986, 1991), (H06), (H11). Also BRA, GUF, PER, SUR: (H06), (P11).

Addl. Data. ZC, Zamora: 1 ♂, 1 ♀, Zumbi , Río Zamora (-3.3889, -78.7752, 700m), 1 x 1941, leg. D. Laddey, det. JJD [FSCA]; 1 ♂, same data but 3 x 1941 [FSCA]; 1 ♀, same data but 10 x 1941 [FSCA]; 1 ♂, same data but 12 x 1941 [FSCA]; 2 ♀♀, same data but 29 x 1941 [FSCA]; 2 ♀♀, same data but 31 x 1941 [FSCA].

Note: This species has not been collected in Ecuador in over 75 years.

Epigomphus obtusus Selys, 1869 . Publ. Recs. ECU: * Paulson (1983), Tsuda (1986, 1991), (H06), (P11), (H14); MS: Tennessen (1998) Also BRA, COL, PER: (H06), (P11).

Addl. Data. MS, Huamboya: 7 ♂♂, 3 ♀♀, stream 10 km S of Comunidad Chuwitayo (-1.9500, -77.8583, 800m), 9 xi 1997, leg. & det. TWD [KJT, SWD]; 2 ♂♂, same but leg. & det. JJD [JJD]; 5 ♂♂, 1 ♀, same data but 10 xi 1997, leg. & det. KJT [KJT]; 1 ♂, Macas, 58 km N on Hwy. 45 (70 km N of Sucua), roadside ditch and tributaries near Río Pasanac (-1.9447, -77.8536, 762m), 9 xi 1997, leg. & det. WFM [FSCA]; 1 ♂, same data but 10 xi 1997 [LSAM]; 1 ♀, same data but 16 ix 2005 [FSCA]; 1 ♂, small stream about 1 km S of Río Pasanac, Hwy. 45 (-1.9500, -77.8583, 820m), 16 ix 2005, leg. & det. KJT [KJT]; NA, Tena: 1 ♂, J.S.B.S. (-1.0655, -77.6176, 421m), leg. & det. ACRP [ACRP]; 1 ♂, same data but RA4-5 (-1.0722, -77.6144, 434m); SU, Shushufindi: 1 ♂, Limoncocha, Río Napo (-0.4000, -76.6167, 269m), 1 xi 1980, leg. & det. MJW [FSCA]; 1 ♂, same data but lake edge, 14 i 1972, leg. D. Pearson, det. DRP [DRP]: 2 ♂♂, same data but forest stream, 24 vii 1977, leg. & det. DRP [DRP].

* Epigomphus occipitalis Belle, 1970 . Publ. Recs. ECU: (H14). Also PER: (H06), (P11).

Addl. Data. SU, Putumayo: 2 ♂♂, Río Cuyabeno , 60 km E Lago Agrío (-0.0167, -76.3167), 16–26 ii 1998, leg. G. Kareofelas, det. A. Rehn, checked by RWG [RWG]; Shushufindi: 2 ♂♂, trails, small streams 3 km W of Shushufindi, 2+ km N off Hwy. 26 at km marker 17 (-0.1664, -76.6917, 290m), 13 x 2009, leg. & det. JTJ [JTJ]; 1 ♀, oil pipeline road, 2 km W of Shushufindi, small tributaries of Río Curiyacu and isolated rain pools (-0.1661, -76.6916), date not provided, data provided by WAH & DLW; 1 ♂, La Selva Lodge, Río Napo, 70 km E of Coca, in forest on Tower Trail. (-0.4978, -76.3741), date not provided, data provided by WAH & DLW.

Epigomphus unresolved: There are several specimens in various collections that have not been determined and may represent undescribed species: ES, San Lorenzo: 1 ♀, along RR track, about 2 km N of Lita, near Río Mira (0.8847, -78.4667, 500m), 5 ii 1997, leg. and det. KJT [FSCA]; MN, Junin: 1 ♀, Palmar (-0.17, -79.47), 6 iv 1941, leg. D. B. Laddey [FSCA]; OR, Francisco de Orellana: 1 ♀, P.N.Y., 1.8 km W of Waorani Reserve Rd on Markus Oil Co Rd PC 29-30, small stream (-0.6861, -76.4726, 200m), 10 vi 1995, leg. and det. WFM [FSCA].

Figures

FIGURE 73. Epigomphus occipitalis ♂, ECUADOR, Sucumbíos Province, trails, small streams 3 km W of Shushufindi, 2+ km N off Hwy. 26 at km marker 17, 13 x 2009; photo J. T. Johnson.