Neoperla filamentosa, Zwick & Zwick, 2023

Zwick, Peter & Zwick, Andreas, 2023, Revision of the African Neoperla Needham, 1905 (Plecoptera: Perlidae: Perlinae) based on morphological and molecular data, Zootaxa 5316 (1), pp. 1-194 : 120

publication ID

https://doi.org/ 10.11646/zootaxa.5316.1.1

publication LSID

lsid:zoobank.org:pub:BC922E16-2614-4F3D-AD82-87A845DE7E2B

DOI

https://doi.org/10.5281/zenodo.8154257

persistent identifier

https://treatment.plazi.org/id/E12C876C-4A1D-FFF3-FF4F-FF0BFDBB0A07

treatment provided by

Plazi

scientific name

Neoperla filamentosa
status

sp. nov.

53. Neoperla filamentosa n. sp.

( Figs. 305–308 View FIGURES 305–308 )

Holotype ♀: Republic of Guinea: Bolongo, P [iège] L[umineuse] 19.10.1984 ( SMNS, gift J.M. Élouard; Z16/91, NEOP162 ).

Additional material studied: Republic of Ghana: 2♀, Subri r. [6.238N, - 2.282E] 05.11.1993 light trap; NUFU project, Uni Bergen ( SMNS; slides GH02-8) GoogleMaps . 3♀, Ghana, western reg., Ankasa Resource Res., Nkwanta Camp 05°16.566’N 002°18342’ 7–8 Jun 2005 K.B. Miller, colr. ( BYU, slides Z18.75 & 77) . République de Côte d’Ivoire: 1♀, 15 km North of Lakota [5.86N, - 5.68W], white light trap. 23-X-1971 J.A.Gruwell ( USNM _124, slide Z17.66; Moore 1991, SEM-figs 18, 19). Côte d’Ivoire, riv. M’pe’do (affl. Agneby , rég. Abidjan [N 5.40912 W 4.04221]) 25.10.1983 J.H.Hougard & H. Prod’hon (gift J.M. Gibon; AfrZ86/25&26) GoogleMaps . Republic of Sierra Leone: 3♀: Northern Province [~ 9.3 N, ~ 11.7E], Yfin, at light 21.11.1983 W. Rossi ( SMNS; Z16 /12, gift R. Fochetti) GoogleMaps .

Specimens with variable egg collar assigned to N. filamentosa with doubts: Republic of Cameroon: 4♀, Cameroun , 52 mi S Garoua [9.32N, 13.39E], Boki R., 330m, 29.IX.1966, E.S.Ross & K.Lorenzen ( CASENT 8413019 , Slide Z17.64). Egg slides Z16/96 und Z17.65 also in SMNS GoogleMaps . Republic of Guinea: 1♀: Niandan , Bambaya [9.20N, 10.42W] 25.10.1984 (AfrZ86/15; SMNS) GoogleMaps . Republic of Senegal: 1♀: Touba [14.8515, -15.8959] viii.1982 (Z.AfrZ86/11; SMNS) GoogleMaps . Republic of Sierra Leone: Northern Province , Kondembaia [9.333, -11.564], 22.11.1984 W. Rossi (Z.Afr 98.02; SMNS) GoogleMaps .

Habitus. Probably faded, yellow except a faint brownish ocellar spot and an ochre flagellum. WL 10.3 mm.

Male. Unknown.

Female ( Fig. 305 View FIGURES 305–308 ). As for the complex, a shallow rounded notch in the sclerotised caudal edge of S8.

Egg ( Fig. 306–308 View FIGURES 305–308 ). Elongate oval, on average 357*213µm (n=4),>20 typical specimens without collar and>20 dextrogyrous striae ( Figs. 306–307 View FIGURES 305–308 ). Operculum with a few cells on its small conical top. Egg striae with broad bare costae and narrow sulci which have 1 row of micropunctures along each side. Micropyles are minute holes in the sulci next to which the rows of micropunctures are interrupted.

DNA ( Figs. 491–492 View FIGURE 491 View FIGURE 492 , 496 View FIGURE 496 ). Only the female holotype from Guinea was sequenced with the genome skimming approach, resulting in only 3,102bp of mitochondrial, protein-coding genes. It is poorly supported (43.9/90/0) as sister to N. orthonema n. sp. (see N. orthonema n. sp. above). Together, they are maximally supported (100/100/100) as sister to N. spironema n. sp..

Notes. Several specimens with eggs with a collar ( Fig. 308 View FIGURES 305–308 ) are with doubts assigned to N. filamentosa n. sp.: collar and anchor cavity seem to be variable and we notice no other differences. Striation of eggs differs from N. orthonema n. sp. and N.spironema n. sp. and is the same as in members of the N. excisa and N. sjostedti operational complex.

Etymology. An adjective derived from Latin filamentum, a thread, an allusion to the structure of the anchor, with threads instead of a solid stem.

SMNS

Staatliches Museum fuer Naturkund Stuttgart

BYU

Monte L. Bean Life Science Museum

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Plecoptera

Family

Perlidae

Genus

Neoperla

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