Papuanatula ( Papuanatula ) cataracta Kaltenbach, Kovács & Gattolliat, 2025
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publication ID |
https://doi.org/10.3897/zookeys.1259.168419 |
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publication LSID |
lsid:zoobank.org:pub:2A99E3EF-D053-481C-A087-F5058972DC96 |
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DOI |
https://doi.org/10.5281/zenodo.17578755 |
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persistent identifier |
https://treatment.plazi.org/id/560DB812-17BB-52A5-B0B3-4CC75F8DB52D |
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treatment provided by |
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scientific name |
Papuanatula ( Papuanatula ) cataracta Kaltenbach, Kovács & Gattolliat |
| status |
sp. nov. |
Papuanatula ( Papuanatula) cataracta Kaltenbach, Kovács & Gattolliat sp. nov.
Figs 12 View Figure 12 , 13 View Figure 13 , 14 View Figure 14
Type material.
Holotype. Indonesia • larva; West Papua, Batanta Island, Warikambon Stream , upper waterfall; 00°50'25"S, 130°42'32"E; 159 m; 12. ii. 2020; leg. T. Kovács, R. Horváth and P. Juhász; on slide; GBIFCH 00976003 ; 2020-5, EPHTYP-9; MM GoogleMaps . Paratypes. 6 larvae; same data as holotype; 3 on slides; GBIFCH 00976000 , GBIFCH 00976001 , GBIFCH 00976002 ; 3 in alcohol; GBIFCH 00975900 , GBIFCH 00975997 , GBIFCH 00975998 ; MZL GoogleMaps • 27 larvae; partly same data as holotype; 04. ii. 2024; leg. T. Kovács; 20 in alcohol; GBIFCH 00975869 , GBIFCH 00975870 , GBIFCH 00975871 , GBIFCH 00975872 , GBIFCH 00975873 ; MZL; 7 in alcohol; 2024-8, EPHTYP-10; MM GoogleMaps .
Diagnosis.
Larva. The following combination of characters distinguishes P. cataracta sp. nov. from other species of Papuanatula s. str.: body dorsally without row of long, fine, simple setae along midline; metanotum and abdominal terga I – VIII posteromedially with cone-like, pointed protuberance, longest on terga III – V, small on VII and VIII; femur anteriorly with irregular blank in basal part; anterior surface of femur and abdominal terga covered with minute, pointed spines; paracercus with five segments.
Description.
Larva (Figs 12 View Figure 12 – 14 View Figure 14 ). Body length 2.5–3.4 mm, cerci ~ 1.6 × as long as body length.
Cuticular coloration (Figs 12 a – d View Figure 12 , 14 c View Figure 14 ). Head, thorax and abdomen dorsally pale brown. Head, thorax and abdomen ventrally pale brown. Legs pale brown, femur anteriorly with irregular blank areas in basal and distal part. Caudalii pale brown.
Hypodermal coloration (Fig. 12 a View Figure 12 ). Abdominal terga with narrow dark brown, transverse band along posterior margins.
Head. Antenna (Fig. 13 i View Figure 13 ). Length ~ 1.5 × head length. Flagellum distally without brown dots.
Developing turbinate eyes in last instar male larva (Fig. 13 i View Figure 13 ) rather small, ovoid, widely spaced.
Labrum (Fig. 13 a, b View Figure 13 ). Length ~ 0.5 × maximum width, laterally convex. Dorsal, sub-marginal arc with ~ 22 feathered setae.
Right mandible (Fig. 13 c View Figure 13 ). Margin between prostheca and mola straight, smooth. Otherwise, as typical for the subgenus.
Left mandible (Fig. 13 d View Figure 13 ). Subtriangular process poorly developed, transparent. Margin between prostheca and mola straight, smooth. Otherwise, as typical for the subgenus.
Hypopharynx (Fig. 13 f View Figure 13 ). As typical for the genus.
Maxilla (Fig. 13 g View Figure 13 ). Maxillary palp approx. as long as galea-lacinia; palp segment II ~ 1.3 × as long as segment I. Otherwise, as typical for the genus.
Labium (Fig. 13 e View Figure 13 ). Paraglossa dorsally with two spine-like setae near inner, distolateral margin. Labial palp with segment I 0.7 × length of segments II and III combined. Segment II without distomedial protuberance, dorsally with row of four or five spine-like setae near outer, distolateral margin. Segment III slightly pentagonal, pointed, 0.8 × length of segment II. Otherwise, as typical for the genus.
Thorax. Sterna. With small protuberances on sides of prosternum and close to openings of mesothoracic and metathoracic sternal apodemes (as typical for the subgenus).
Terga (Figs 12 c View Figure 12 , 14 c View Figure 14 ). Metanotum posteromedially with cone-like protuberance.
Legs (Fig. 14 a, b, i View Figure 14 ). Ratio of leg segments: fore leg 1.0: 1.0: 0.4: 0.2, middle leg 1.0: 1.0: 0.4: 0.2, and hind leg 1.1: 1.0: 0.4: 0.2. Femur. Length ~ 3 × maximum width. Surface covered with minute, pointed denticles. Tarsus. Setae along outer margin not similar as on tibia as usually, but much shorter, fine, and not ciliate. Claw with one row of six or seven denticles, and one posterior seta. Otherwise, as typical for the subgenus.
Abdomen. Terga (Fig. 14 c – e View Figure 14 ). Abdominal terga I – VIII posteromedially with cone-like, pointed protuberance, longest on terga III – V, small on VII and VIII. Posterior margin of terga: I – IX with short, rounded spines, apically carrying needle-like denticles; partly also triangular, pointed spines toward end of abdomen.
Tergalii (Fig. 13 h View Figure 13 ). Present on terga II – VII. Ovoid; tracheation poorly developed, pigmentation of tracheae mainly limited to main trunk; margins smooth, with short, fine, simple setae. Tergalius II as long as abdominal terga III and ½ IV combined, tergalius IV as long as terga V and ⅓ VI combined, tergalius VII reaching anterior margin of tergum IX.
Paraproct (Fig. 14 h View Figure 14 ). Posterior margin expanded, with denticles in distal part.
Caudalii (Fig. 14 f, g View Figure 14 ) Cerci without swimming setae. Paracercus with five segments.
Pose of subimaginal gonostyli under larval cuticle. As typical for the subgenus.
Subimago. Unknown.
Imago. Unknown.
Egg. Unknown.
Biological aspects.
The species is only known from the upper waterfall of the Warikambon Stream at an altitude of 150 m (Fig. 29 c View Figure 29 ; type locality), in the northern part of Batanta. The larvae live in fast-flowing water-films on rocks, together with the larvae of a damselfly ( Metagrion sp. ). No other Papuanatula species were found in the same locality.
Etymology.
The species name cataracta , meaning waterfall in Latin, refers to the habitat of the larva in the water-film on rocks in fast flowing water.
Distribution.
New Guinea, Batanta Island (Fig. 30 View Figure 30 ).
Key to the species of P. copis species group from New Guinea (larvae)
Based on Kaltenbach et al. 2025.
| MM |
University of Montpellier |
| MZL |
Musee Zoologique |
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.
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Papuanatula |