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. 9 View FIGURE 9 (distribution), Fig. 18 View FIGURE 18 (male and female habitus, calling song, male and female terminalia, karyotype), Plate 1E View PLATE 1 (live habitus), Plate 4I View PLATE 4 (male calling song), Plate 7D View PLATE 7 (male ventral sclerite), Plate 9I View PLATE 9 (male titillators), Plate 11I View 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 Weissman GoogleMaps   , 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 9 View 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. 9 View 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. 3–4 View FIGURE 3 View 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 Cole GoogleMaps   , LACM; 1♁, same data except GoogleMaps   JAC; 5♁, same data except 19-VII-1982, DC Lightfoot GoogleMaps   , CAS; Columbia Co., 1♀, Wilson Creek , 46.07701N, 123.02315W, EH Nast GoogleMaps   , CAS; Hood River Co., 1♁, 1♀, Hood   R., 45.70556N, 121.52028W, 122 m, 17-VII-1931, RH Beamer GoogleMaps   , CAS; Marion Co., 1♁, Sublimity, Silver Creek Falls , 45.000267N, 122.840916W, 167 m, 19-VIII-1945, W Blehm GoogleMaps   , CAS; Multnomah Co., 3♁, Dabney State Park , 45.51766N, 122.35429W, 22 m, 19-IX-2015, JA Cole GoogleMaps   , 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 Cole GoogleMaps   , JAC; 1♁ same data except GoogleMaps   JAC; 1♁, SE Gordon Creek Rd., 2.7 mi. S jct. Hurlburt Rd. , 45.4784N, 122.28107W, 257 m, 19-IX-2015, JA Cole GoogleMaps   , JAC sound record; Tillamook Co., 1♁, Tillamook , 45.51667N, 123.71667W, 30- VII-1926, CL Hubbs GoogleMaps   , CAS; WA, Kitsap Co., 1♁, Holly , 47.557593N, 122.978488W, 3 m, 6-VII-1926, CL Hubbs GoogleMaps   , CAS; 5♁, Margarete Ranch, Port Orchard , 47.47137N, 122.65009W, 1525 m, 13-14-VIII-2013, JA Cole GoogleMaps   , LACM; 2♁, same data except GoogleMaps   JAC; Mason Co., 1♁, 1♀, Lake Cushman , 47.487964N, 123.266471W, 244 m, 27-VIII-1919, P Putnam GoogleMaps   , CAS, Pierce Co., see Type material (above)   . QUESTIONABLE PLACEMENT: OR, Douglas Co., 1♁ nymph, Drain , 43.658731N, 123.318699W, 9-VI-2014, EC VanDyke GoogleMaps   , 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, SCAN GoogleMaps   ; Gailano Island , 48.93N, 123.45W, 4-IX-1971, J Scudder, SCAN GoogleMaps   ; same data except 1971, J Scudder, SCAN GoogleMaps   ; same data except 11-X-1976, GGE Scudder, SCAN GoogleMaps   ; same data except 1976, GGE Scudder, SCAN GoogleMaps   ; Vancouver Island , 49.66667N, 125.83333W, 9-VIII-2007, J Miskelly, SINA GoogleMaps   .

Propsti   Group

The Propsti  Group contains a single species, the Santa Catalina Island endemic ( Fig. 8 View 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 5C View PLATE 5 ) whereas the song of N. propsti   is continuous ( Plate 4J View PLATE 4 ). The karyotype is unique.

Propsti   Group

The Propsti  Group contains a single species, the Santa Catalina Island endemic ( Fig. 8 View 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 5C View PLATE 5 ) whereas the song of N. propsti   is continuous ( Plate 4J View 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