Neduba steindachneri ( Herman, 1874 ), Propsti,

Cole, Jeffrey A., Weissman, David B., Lightfoot, David C., Ueshima, Norihiro, Warchałowska-Śliwa, Elżbieta, Maryańska-Nadachowska, Anna & Chatfield-Taylor, Will, 2021, A revision of the shield-back katydid genus Neduba (Orthoptera: Tettigoniidae: Tettigoniinae: Nedubini), Zootaxa 4910 (1), pp. 1-92: 44-46

publication ID

https://doi.org/10.11646/zootaxa.4910.1.1

publication LSID

lsid:zoobank.org:pub:69A0204C-15B4-4566-AA27-E3817087130A

DOI

http://doi.org/10.5281/zenodo.4465034

persistent identifier

http://treatment.plazi.org/id/039C87AE-7D5D-FFEA-FF47-048A7515FAAD

treatment provided by

Plazi

scientific name

Neduba steindachneri ( Herman, 1874 ) Propsti
status

 

Neduba steindachneri ( Herman, 1874) 

Fig. 9View FIGURE 9 (distribution), Fig. 18View FIGURE 18 (male and female habitus, calling song, male and female terminalia, karyotype), Plate 1EView PLATE 1 (live habitus), Plate 4IView PLATE 4 (male calling song), Plate 7DView PLATE 7 (male ventral sclerite), Plate 9IView PLATE 9 (male titillators), Plate 11IView PLATE 11 (female subgenital plate).

Common name. Steindachner’s Shieldback.

History of recognition. Originally described in Tropizaspis  from Fox Island, Puget Sound, Washington. Caudell (1907) synonymized this species under N. carinata  . This species was subsequently removed from synonymy on the basis of the wide distance between type localities, but without examination of specimens ( Rentz & Birchim 1968). NEW COMBINATION: N. picturata ( Scudder 1899)  is transferred under the synonymy of this species, rather than N. diabolica  , given the type was collected during the Northwestern Boundary Survey ( Caudell 1907). This survey, from 1857-1861, was led by B.R. Kennerly, along the 409-mile-long Canadian-US border between the Rocky Mountains and Point Roberts on coastal Washington.

Type material. The syntype series of males and females is in NMW Vienna. Lectotype male here chosen as the adult whose images appear, along with collection labels, on the OSFO ( Cigliano et al. 2020). Label data of this specimen is as follows:

Small square label: “Stein-/dachner /1869[typed]/Califor [handwritten over label]

Wide rectangular label [handwritten]: Type n. sp. steindachneri/Fox Island Pouget Sound/1874 (http:// orthoptera  .speciesfile.org/Common/basic/ShowImage.aspx?TaxonNameID=1141747&ImageID=208936)

TOPOTYPES EXAMINED (n = 4): WA, Pierce Co., 4♁, Puget Sound , Fox Island, 47.235925N, 122.626948W, 16-VIII-1986, DB WeissmanGoogleMaps  , CAS

Measurements. (mm, ♁n = 20, ♀ n = 1) Hind femur ♁16.72–21.00, ♀ 19.80, pronotum total length ♁7.61–9.55, ♀ 7.56, prozona length ♁3.34–4.41, ♀ 1.94, metazona dorsal length ♁4.15–5.83, ♀ 5.62, pronotum constriction width ♁1.95–2.55, ♀ 2.60, metazona dorsal width ♁5.65–6.90, ♀ 5.50, head width ♁3.71– 4.45, ♀ 4.69, ovipositor length ♀ 14.18.

Distribution. Central Oregon Cascade and Coast Ranges north to coastal British Columbia.

Habitat. Understory of fir and fir-oak forests. On grasses, low branches, Ribes  , and leaf litter.

Seasonal occurrence. Summer through fall, from July (6-VII-1926, CL Hubbs, CAS) through September (19- IX-2015, JA Cole, LACM).

Stridulatory file. (n = 11) length 3.5–4.0 mm, 108–127 teeth, tooth density 31.3 ± 2.3 (27–35.3) teeth/mm.

Song. (n = 26) Male songs are of the zwee-zwee type with PTR 3.7 ± 0.4 s- 1, faster than all other Convexa Clade species except some males of N. radicata  . Males sometimes add partial PT when initiating song bouts. MPTL is 250.4 ± 47.6 ms. The OPT is poorly developed or absent. PTF is 13.1 ± 1.7 kHz. Males are nocturnal singers.

Karyotype. (n = 5) 2n♁ = 26 (2m + 22t + XtXt) T86-74, S86-95, topotype.

Recognition. The male ventral sclerite is mushroom-shaped with a short, broad shaft and a wide, evenly curved apex with a short, blunt, recurved anterolateral projection. Tubercles are large, sparse, and confined to the apex. The titillators of N. steindachneri  begin curvature after the midpoint of the shaft and are not as strongly curved dorsally (>90 o) as seen in most other Carinata Group species ( Plate 9View PLATE 9). Stridulatory file tooth density (27–35 teeth/mm) is lower than that of N. convexa  (2-sample t -test, P = 5.48 ×10 -3) and also trends lower than N. cascadia  (33–39 teeth/ mm). The female subgenital plate is pentagonal, flat, subequal in length and width, and with curved apical margins and a strongly pointed apex, which separates this species from N. cascadia  females which have straight apical margins and from N. convexa  and N. longiplutea  females which have plates that are longer than wide. The song is unique in having reduced or absent OPT. The PTR is faster than all other convexa  clade species. This species has the most northern range of any Neduba  ( Fig. 9View FIGURE 9).

Notes. N. steindachneri  is locally common in the forest understory of the western slopes of Oregon and Washington Cascade Range and primarily the eastern slopes of the Oregon and Washington coastal ranges. A phylogeographic break separates populations north and south of the Willamette River ( Figs. 3–4View FIGURE 3View FIGURE 4) that suggests historical isolation that indicates historical isolation. Hybridzation with N. cascadia  is possible and should be sought from populations in central Oregon, where the ranges of these two species overlap.

Material examined. (n = 28) USA, OR, Benton Co., 8♁, McDonald-Dunn Forest, Corvallis , 44.60382N, 123.33253W, 144 m, 18-IX-2015, JA ColeGoogleMaps  , LACM; 1♁, same data exceptGoogleMaps  JAC; 5♁, same data except 19-VII-1982, DC LightfootGoogleMaps  , CAS; Columbia Co., 1♀, Wilson Creek , 46.07701N, 123.02315W, EH NastGoogleMaps  , CAS; Hood River Co., 1♁, 1♀, Hood  R., 45.70556N, 121.52028W, 122 m, 17-VII-1931, RH BeamerGoogleMaps  , CAS; Marion Co., 1♁, Sublimity, Silver Creek Falls , 45.000267N, 122.840916W, 167 m, 19-VIII-1945, W BlehmGoogleMaps  , CAS; Multnomah Co., 3♁, Dabney State Park , 45.51766N, 122.35429W, 22 m, 19-IX-2015, JA ColeGoogleMaps  , JAC; 5♁, Oxbow Regional Park Day Use Area, SE Gordon Creek Rd., 1.2 mi. SE jct. Hurlburt Rd. , 45.49821N, 122.27871W, 59 m, 19-IX-2015, JA ColeGoogleMaps  , JAC; 1♁ same data exceptGoogleMaps  JAC; 1♁, SE Gordon Creek Rd., 2.7 mi. S jct. Hurlburt Rd. , 45.4784N, 122.28107W, 257 m, 19-IX-2015, JA ColeGoogleMaps  , JAC sound record; Tillamook Co., 1♁, Tillamook , 45.51667N, 123.71667W, 30- VII-1926, CL HubbsGoogleMaps  , CAS; WA, Kitsap Co., 1♁, Holly , 47.557593N, 122.978488W, 3 m, 6-VII-1926, CL HubbsGoogleMaps  , CAS; 5♁, Margarete Ranch, Port Orchard , 47.47137N, 122.65009W, 1525 m, 13-14-VIII-2013, JA ColeGoogleMaps  , LACM; 2♁, same data exceptGoogleMaps  JAC; Mason Co., 1♁, 1♀, Lake Cushman , 47.487964N, 123.266471W, 244 m, 27-VIII-1919, P PutnamGoogleMaps  , CAS, Pierce Co., see Type material (above)  . QUESTIONABLE PLACEMENT: OR, Douglas Co., 1♁ nymph, Drain , 43.658731N, 123.318699W, 9-VI-2014, EC VanDykeGoogleMaps  , CAS.

Material from databases not examined by us (n = 7): CANADA, BC, Departure Bay, 49.20, 123.98W, 1925, GJ Spencer, Symbiota Collections of Arthropods Network ( SCAN, https://scan-bugs.org/portal); UBC  Campus 49.26N, 123.25W, 3-X-1946, D Evans, SCANGoogleMaps  ; Gailano Island , 48.93N, 123.45W, 4-IX-1971, J Scudder, SCANGoogleMaps  ; same data except 1971, J Scudder, SCANGoogleMaps  ; same data except 11-X-1976, GGE Scudder, SCANGoogleMaps  ; same data except 1976, GGE Scudder, SCANGoogleMaps  ; Vancouver Island , 49.66667N, 125.83333W, 9-VIII-2007, J Miskelly, SINAGoogleMaps  .

Propsti  Group

The Propsti  Group contains a single species, the Santa Catalina Island endemic ( Fig. 8View FIGURE 8) N. propsti  . The Group is defined by having a single spine on the fore tibia located on the posterior margin, a pair of prosternal spines, darkened male tegminal apices, and a female subgenital plate that is over half again as long as wide. Only N. lucubrata  from mainland California shares this suite of characters, but this species has a smaller body size, a male subgenital plate that narrows from base to apex along the lateral carinae, and a song that consists of a bout (chirp) structure ( Plate 5CView PLATE 5) whereas the song of N. propsti  is continuous ( Plate 4JView PLATE 4). The karyotype is unique.

Propsti  Group

The Propsti  Group contains a single species, the Santa Catalina Island endemic ( Fig. 8View FIGURE 8) N. propsti  . The Group is defined by having a single spine on the fore tibia located on the posterior margin, a pair of prosternal spines, darkened male tegminal apices, and a female subgenital plate that is over half again as long as wide. Only N. lucubrata  from mainland California shares this suite of characters, but this species has a smaller body size, a male subgenital plate that narrows from base to apex along the lateral carinae, and a song that consists of a bout (chirp) structure ( Plate 5CView PLATE 5) whereas the song of N. propsti  is continuous ( Plate 4JView PLATE 4). The karyotype is unique.

NMW

Naturhistorisches Museum, Wien

CAS

California Academy of Sciences

LACM

Natural History Museum of Los Angeles County

JAC

University of Jodhpur

R

Departamento de Geologia, Universidad de Chile

UBC

University of British Columbia

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tettigoniidae

Genus

Neduba

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tettigoniidae

Genus

Propsti