Dudgeodes pangantihoni Garces & Sartori, 2020

Garces, Jhoana M., Sartori, Michel & Freitag, Hendrik, 2020, Integrative taxonomy of the genus Dudgeodes Sartori, 2008 (Insecta, Ephemeroptera, Teloganodidae) from the Philippines with description of new species and supplementary descriptions of Southeast Asian species, ZooKeys 910, pp. 93-129 : 93

publication ID	https://dx.doi.org/10.3897/zookeys.910.48659
publication LSID	lsid:zoobank.org:pub:0D66ACB7-960D-4557-889C-5EC4528E5A40
persistent identifier	https://treatment.plazi.org/id/95FC37E7-EF2D-4337-9D86-426E74259446
taxon LSID	lsid:zoobank.org:act:95FC37E7-EF2D-4337-9D86-426E74259446
treatment provided by	ZooKeys by Pensoft
scientific name	Dudgeodes pangantihoni Garces & Sartori
status	sp. nov.

Treatment

Dudgeodes pangantihoni Garces & Sartori sp. nov. Figures 5A-C View Figure 5 , 10A-H View Figure 10 , 11A-E View Figure 11 , 12A View Figure 12 , 13A-D View Figure 13 , 14B View Figure 14 , 15A View Figure 15 , 16A View Figure 16

Material.

Holotype: Philippines • 1 mature male nymph; Camiguin, Sagay, Bonbon, lower Binangawan River; 09°06'39"N, 124°43'45"E; 26 m a.s.l.; 9 Dec. 2018; leg. Freitag; GenBank: MN853821; PNM: EPH 220/ PNM 13680 in ethanol. Paratypes: Philippines • 4 nymphs; same collection data as holotype; GenBank: MN853809, MN853811, MN853822, MN853812; AdMU: EPH 163, EPH 166, EPH 221 on slides, ZSM: EPH 168 on slide • 2 nymphs; Mindanao, Agusan del Sur, San Francisco, Bayogan, Tagkunayan Creek; 8°28'N, 125°59'E; 120 m a.s.l.; 5 Feb. 1998; leg. Mendoza; GenBank: MN853813, MN853810; ZSM: EPH 169 in ethanol, EPH 165 on slide • 2 nymphs; Mindanao, Bukidnon, Cagayan River, Tignapoloan Falls; 8°15'10"N, 124°34'51"E; c.270 m a.s.l.; 19 June 1997; leg. Mendoza; GenBank: MN853815, MN853814; AdMU: EPH 208 in ethanol, ZSM: EPH 207 on slide • 1 nymph; Mindanao, Bukidnon, Cagayan River; 8°15'07"N, 124°34'56"E; c.250 m a.s.l.; 19 June 1997; leg. Mendoza; GenBank: MN853820; AdMU: EPH 213 on slide • 3 nymphs; Mindanao, Agusan N, Cabadbaran, Del Pilar, Payas River; 9°11'34"N, 125°36'34"E; c.660 m a.s.l.; 23 June 2018; leg. Pangantihon; GenBank: MN853816, MN853817, MN853818; AdMU: EPH 209 in ethanol, AdMU EPH 210 on slide, ZSM: EPH 211 in ethanol • 1 nymph; Mindanao, Bukidnon, CEDAR; 8°15'10"N, 125°02'07"E; 760 m a.s.l.; 18 Nov. 1997; leg. Mendoza; GenBank: MN853819; AdMU: EPH 212 on slide.

Diagnosis.

Dudgeodes pangantihoni sp. nov. can be distinguished from other Oriental Dudgeodes by the combination of the following characters: (1) antenna length subequal to head width, (2) dorsal part of male eyes brown, (3) six prothorax tubercles, (4) two mesothorax tubercles, (5) no tarsal claw subapical teeth, (6) tergite VI posterior margin teeth diminishing distally, (7) tergite VII posterior margin teeth present on the entire length, (8) longest setae on cerci basal segments more than half of the corresponding segment, (9) longest setae on cerci distal segments subequal to the corresponding segments, and (10) absence of brownish band on the cerci. Dudgeodes pangantihoni sp. nov. is most similar to D. celebensis from which it can be separated by the combination of the following characters: (1) dorsal part of male eyes brown, (2) tergite VII posterior margin teeth present on the entire length, (3) moderately developed median tubercles of tergites III-IX, (4) no posterolateral projections on segments III and IV, (5) moderately developed posterolateral projections on segments II and segments VII-IX, and (6) slightly marked posterolateral projections on segments V and VI.

Description.

Mature nymph. Body length ♂ 4.7-5.2, ♀5.7 mm; cerci 0.8-0.9 times body length.

Head: Antennae 0.9-1.0 times head width, flagellum with 16 or 17 segments. Dorsal part of male eyes brown (Fig. 10A-H View Figure 10 ). Labrum wide, ca. 2.0-2.2 times wider than long, slightly concave in central part of anterior margin. Labial palp segment III elongated, 3.0-3.3 times as long as wide at base.

Thorax: Pronotum (Fig. 13A-D View Figure 13 ) with six small and round tubercles. Mesonotum (Fig. 13A-D View Figure 13 ) with two small and round tubercles; outer margin with regular row of forked thick setae.

Legs: Forefemur dilated, ca. 1.5-1.7 times longer than wide; transverse row of long and apically combed setae (Fig. 14B View Figure 14 ) across dorsal face; dorsal surface, outer and inner margin sparsely covered with short thick apically combed setae and thin setae solitary and in bunches. Fore tarsal claw hooked, bearing four blunt teeth medially and no tooth subapically. Middle and hind femora ca. 2 times longer than wide. Middle and hind tarsal claw hooked, bearing four blunt teeth medially and no tooth subapically.

Abdomen: Tergite with median tubercles (Fig. 5B View Figure 5 ) moderately developed on segments I-IX, slightly developed on segment X. No posterolateral projections (Fig. 5C View Figure 5 ) on segments III and IV; moderately developed on segment II and segments VII-IX; slightly marked on segment V and VI.

Tergites IV-VI (Fig. 15A View Figure 15 ) surface covered with short thin setae, thick setae with feathered apex and apically rounded feathered thick setae; posterior margin with long pointed thick setae, forked robust thick setae and thick setae with feathered apex and apically rounded feathered thick setae. Tergites VII-X (Fig. 16A View Figure 16 ) surface and posterior margin with short thin setae, thick setae with feathered apex and apically rounded feathered thick setae. Narrow slender teeth present on posterior margin of tergites I-VI diminishing laterally (Fig. 15A View Figure 15 ) and across entire posterior margin of tergites VII-X (Fig. 16A View Figure 16 ).

Cerci with apically blunt thick setae every segment; longest setae on basal segments more than half of corresponding segment; longest setae on distal segments subequal to corresponding segments. Brownish band absent (Fig. 5A View Figure 5 ).

Etymology.

The species is named after Clister V. Pangantihon, the collector of some material and project assistant of the Biodiversity Laboratory, AdMU.

Distribution and biology.

Dudgeodes pangantihoni sp. nov. is so far only known from Northern Mindanao (Fig. 17C View Figure 17 ) and Camiguin island, Philippines. All material was collected at altitudes of 20-600 m a.s.l. surrounded by secondary vegetation, rarely secondary forest. Nymphs from Camiguin island were collected in small lowland river surrounded by secondary vegetation, coconut farmland.