Pseudoneureclipsis khonphaphengensis Malicky & Thamsenanupap, 2021

Thamsenanupap, Penkhae, Malicky, Hans, Vongsombath, Chanda & Laudee, Pongsak, 2021, Three new species of caddisflies (Trichoptera, Hydroptilidae, Polycentropodidae, Leptoceridae) from Khon Phapheng Waterfall, the Mekong River, Laos, ZooKeys 1055, pp. 149-159 : 149

publication ID

https://dx.doi.org/10.3897/zookeys.1055.66536

publication LSID

lsid:zoobank.org:pub:0A16D86E-946F-4E26-98B5-FAB2AC33645F

DOI

https://doi.org/10.5281/zenodo.7019472

persistent identifier

https://treatment.plazi.org/id/CDDB7489-A5C2-4371-B4B8-F3CDE6CA538C

taxon LSID

lsid:zoobank.org:act:CDDB7489-A5C2-4371-B4B8-F3CDE6CA538C

treatment provided by

ZooKeys by Pensoft

scientific name

Pseudoneureclipsis khonphaphengensis Malicky & Thamsenanupap
status

sp. nov.

Pseudoneureclipsis khonphaphengensis Malicky & Thamsenanupap sp. nov.

Figure 2 View Figure 2

Type material.

Holotype. Male. Laos: Pakse Province: Champasak, Khonphapheng waterfall, Mekong river, 13°57'30"N, 105°59'14"E, elev. 64 m, 8.iv.2019, Pongsak Laudee. (PSUNHM). Paratypes: same data as the holotype; Laos: Vientiane province: Nam Lik river, 18°31'29"N, 102°31'19"E, elev. 180 m, 8.iv.2019, Pongsak Laudee. 9 males: 2 males (PSUNHM), 3 males (CHM), 2 males (NMPC), 2 males (CUAC).

Diagnosis.

The male genitalia of P. khonphaphengensis sp. nov. are similar to those of P. kaineus Malicky & Bunlue in Malicky et al. 2004 from Thailand. However, P. khonphaphengensis sp. nov. is strikingly different from P. kaineus and the other species of the genus by the usually broad, almost circular inferior appendages with 1.5 × longer than its width in lateral view, while the inferior appendages of P. kaineus are oval and 3.2 × longer than its width in lateral view. In addition, the phallus of P. khonphaphengensis sp. nov. bearing the hooked phallic sclerite which are lacking in P. kaineus .

Description.

Adult, male, length of each male forewing 4.0-4.5 mm (n = 9); general body color in alcohol yellow brown.

Male genitalia as in Figure 2A-E View Figure 2 . Segment IX narrow in lateral view, with anterior margin produced forward in ca. 100° angle. (Fig. 2B View Figure 2 ). Segment X bilobed, blunt apically in dorsal view; finger like with setae in lateral view. Preanal appendages, long, slender with setae, rounded apically in dorsal view and lateral view (Fig. 2A, B View Figure 2 ). Intermediate appendages hooked and turned dorsally then bend outward immediately in dorsal view (Fig. 2A View Figure 2 ); in lateral view hooked, slightly curved upward, pointed apically (Fig. 2B View Figure 2 ). Inferior appendages strikingly broad and rounded, total length <2 × of its subapical width in lateral view (Fig. 2B View Figure 2 ); slender oviform, total length <2 × of its width in ventral view (Fig. 2C View Figure 2 ). Basodorsal processes of inferior appendages curved with strong setae dorsomedially, pointed apically in lateral view (Fig. 2B View Figure 2 ); in ventral view, horn like, originated basodorsally, curved inward, each with tapering apex (Fig. 2C View Figure 2 ). Phallus, long, cylindrical, bulbous basally, straight laterally with hooked phallic sclerite intermediately, with numerous subapical spines in lateral view and dorsal view (Fig. 2D, E View Figure 2 ).

Etymology.

The species is named for the type locality, Khon Phapheng waterfall.