Dudgeodes freitagi Garces & Sartori, 2020
|
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/78B31301-3181-4FDD-BECE-D4ABAD6CEFA2 |
|
taxon LSID |
lsid:zoobank.org:act:78B31301-3181-4FDD-BECE-D4ABAD6CEFA2 |
|
treatment provided by |
|
|
scientific name |
Dudgeodes freitagi Garces & Sartori |
| status |
sp. nov. |
Dudgeodes freitagi Garces & Sartori sp. nov. Figures 3A-C View Figure 3 , 12F View Figure 12 , 15G View Figure 15 , 16G View Figure 16
Material.
Holotype: Philippines • 1 female nymph; Luzon, Laguna, Samil River; 14°08'N, 121°31'E; 370 m a.s.l.; 27 June 2018; BIO-PHIL exped.; GenBank: MN853790; PNM: EPH 191/ PNM 13685 in ethanol. Paratypes: Philippines • 1 nymph; same collection data as holotype; GenBank: MN853789; ZSM: EPH 184 on slide • 3 nymphs; Luzon, Batangas, Lobo, Lobo River; c. 13°40'43"N, 121°15'04"E; c. 38 m a.s.l.; 10 Nov. 1996; leg. Mendoza; GenBank: MN853788, MN853786, MN853787; AdMU: EPH 148 on slide, EPH 146 and EPH 147 in ethanol • 1 nymph; Luzon, Bulacan, 14km E San Miguel, Biak na Bato NP, river 300m upstream B. Panici Cave; 15°06'N, 121°06'E; c. 100 m a.s.l.; 4 Oct. 1995; GenBank: MN853791; AdMU: EPH 238 on slide • 2 nymphs; Luzon, Subic BMA area, Jadjad River; 14°48'59"N, 120°20'31"E; 80 m a.s.l.; 1 July 2017; leg. Freitag; GenBank: MN853792, MN853793; AdMU: EPH 245 and EPH 246 on slides.
Diagnosis.
Dudgeodes freitagi sp. nov. can be distinguished from other Oriental Dudgeodes by the combination of the following characters: (1) antenna length longer than head width, (2) dorsal part of male eyes blackish, (3) six prothorax tubercles, (4) two mesothorax tubercles, (5) no tarsal claw subapical teeth, (6) narrow teeth on median area of posterior margin tergite VI, (7) narrow teeth on entire area of posterior margin tergite VII, (8) longest setae on cerci basal segments half of the corresponding segment (9) longest setae on cerci distal segments greater than the corresponding segments, and (10) presence of brownish band every four segments of the cerci. Among the species found on Luzon island, Dudgeodes freitagi sp. nov. closely resembles D. pescadori and D. luntian sp. nov. but can be separated by the combination of the following characters: (1) antenna length longer than head width, (2) six prothorax tubercles, (3) two mesothorax tubercles, (4) five to six tarsal medial teeth, (5) narrow teeth on median area of posterior margin of tergite VI, (6) longest setae on cerci basal segments half of the corresponding segment, (7) longest setae on cerci distal segments greater than the corresponding segments, (8) median tubercles moderately developed on segments I and II and VIII-X, well developed on segments III-VII, and (9) posterolateral projection slightly developed on V-VIII.
Description.
Mature nymph. Body length ♂ 4.8-5.2 mm, ♀ 5.7-5.9 mm; cerci 0.8-0.9 times body length.
Head: Antennae 1.1-1.2 times head width, flagellum with 16 or 17 segments. Dorsal part of male eyes blackish (Fig. 3A View Figure 3 ). Labrum wide, ca. 2.2-2.3 times wider than long, slightly concave in central part of anterior margin. Labial segment III elongated, 2.7-3.3 times as long as wide at base.
Thorax: Pronotum (Fig. 3B View Figure 3 ) with six small and round tubercles. Mesonotum (Fig. 3B View Figure 3 ) with two small and round tubercles; outer margin with regular row of forked setae.
Legs: Forefemur dilated, ca. 1.5-1.7 times longer than wide; transverse row of long and apically combed setae across dorsal face; dorsal surface, outer and inner margin sparsely with short thick setae and thin setae in solitary and in bunches. Fore tarsal claw hooked, bearing five 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 to five blunt teeth medially and no tooth subapically.
Abdomen: Tergite (Fig. 3B View Figure 3 ) with median tubercles moderately developed on segments I-II and VIII-X, well developed on segments III-VII. Posterolateral projections (Fig. 3C View Figure 3 ) absent on segments II-III, slightly developed on IV-IX.
Tergites IV-VI (Fig. 15G 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 thick setae and thick setae with feathered apex and apically rounded feathered thick setae. Tergites VII-X (Fig. 16G 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 median area of tergites I-VI (Fig. 15G View Figure 15 ) and across entire posterior margin of tergites VII-X (Fig. 16G View Figure 16 ).
Cerci with apically blunt thick setae every segment; longest setae on basal segments half of corresponding segment; longest setae on distal segments longer than corresponding segment length. Brownish band present every four segments (Fig. 3A View Figure 3 ).
Etymology.
The species is named after Professor Hendrik Freitag (Philippines/Germany), the collector of some material, for being a great mentor to freshwater entomology students in the Philippines. His experience and passion motivated the first author to continue pursuing research on aquatic insects.
Distribution and biology.
Dudgeodes freitagi sp. nov. is so far only known from the Luzon island. All material was collected at altitudes of 10-400 m a.s.l. surrounded by secondary vegetation or farmland, with few houses in some distance from the river bed (Fig. 17A View Figure 17 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.