Neduba ambagiosa Cole, Weissman, & Lightfoot

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: 30-32

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.4465021

persistent identifier

http://treatment.plazi.org/id/039C87AE-7D6B-FFE7-FF47-024E72BDFC45

treatment provided by

Plazi

scientific name

Neduba ambagiosa Cole, Weissman, & Lightfoot
status

sp. n.

Neduba ambagiosa Cole, Weissman, & Lightfoot   sp. n.

Fig. 9 View FIGURE 9 (distribution), Fig. 12 View FIGURE 12 (male and female habitus, calling song, male and female terminalia, karyotype), Plate 1 View PLATE 1 B– C (live habitus), Plate 4C View PLATE 4 (male calling song), Plate 6I View PLATE 6 (male ventral sclerite), Plate 6 View PLATE 6 G–H (male ventral sclerites, ambagiosa   x carinata   hybrids), Plate 9D View PLATE 9 (male titillators), Plate 11C View PLATE 11 (female subgenital plate).

Common name. Ambiguous Shieldback.

History of recognition. Individuals of this species were encompassed in the type series of N. convexa ( Caudell 1907)   .

Type material. HOLOTYPE MALE: USA, CA, Lake Co., Middle Creek , 2.7 mi. S of Middle Creek Campground on Elk Mountain Road, 39.21569N, 122.93381W, 430 m, 6-VIII-2014, JA Cole, DB Weissman, JAC000001944 [specimen barcode], S14-64 [stop], JCR140918_00 [recording], 110 T [teeth] 3.4 [mm stridulatory file length], genitalia extracted and cleared in vial and excised tegmen in gelcap below specimen, deposited at CAS, Entomology type #19706. GoogleMaps  

PARATYPES (n = 27): USA, CA, Lake Co., 6♁, 3♀, Middle Creek Campground, 7 miles northwest of Upper Lake on Elk Mountain Road , 39.2537N, 122.9502W, 610 m, 3-6-VII-2003, JA Cole GoogleMaps   , LACM; 1♁, 1♀, same data except GoogleMaps   JAC; 5♁, 4♀, Middle Creek, 2.7 miles south of Middle Creek Campground on Elk Mountain Road , 39.21569N, 122.93381W, 430 m, 6-VIII-2014, JA Cole, DB Weissman GoogleMaps   , LACM; Mendocino Co., 4♁, 3♀, Tranquility, 1 mile south of Caspar , 39.349009N, 123.815849W, 7-VII-1982, JR Helfer GoogleMaps   , CAS.

Measurements. (mm, ♁n = 16, ♀ n = 9) Hind femur ♁17.59–22.4, ♀ 19.95–22.36, pronotum total length ♁7.82– 11.14, ♀ 6.90–8.84, prozona length ♁3.26–4.91, ♀ 3.75–5.12, metazona dorsal length ♁4.35–6.23, ♀ 2.93–3.87, pronotum constriction width ♁1.55–2.93, ♀ 2.30–3.15, metazona dorsal width ♁5.43–7.00, ♀ 4.20–6.15, head width ♁3.75–4.80, ♀ 4.42–5.10, ovipositor length ♀ 13.43–18.81.

Distribution. North Coast Ranges of California. The type locality is in the vicinity of Clear Lake.

Habitat. Understory of chaparral and mixed conifer forests, riparian corridors, and canyon bottoms. On leaf litter, poison oak, and on tree trunks.

Seasonal occurrence. mid-June (16-VI-1978, DB Weissman, CAS) through November (15-XI-1953 JR Helfer, CAS). Nymphs from December through July.

Stridulatory file. (n = 13) length 2.6–3.9 mm, 94–139 teeth, tooth density 34.2 ± 2.6 (30.8–40.9) teeth/mm.

Song. (n = 11) PTR 2.9 ± 0.3 s- 1, identical to topotype N. convexa   . PTF 13.0 ± 0.9 kHz. Males are nocturnal singers. A genetically identified hybrid population ( Fig. 4 View FIGURE 4 ; see also Notes under N. carinata   ) from Solano County, California has a significantly faster pulse rate of 3.1 ± 0.2 s- 1 (ANCOVA, P = 1.08×10 -5).

Karyotype. (n = 9) 2n♁ = 26 (2m + 22t + XtYt). T14-24, S14-64, paratopotype.

Recognition. A low stridulatory file tooth density (30–40) will separate this species from N. carinata   and N. diabolica   distributed to the south. The ventral sclerite apex is usually conical to pyramidal, rarely flat, with a short to medium-length lateral process. The length of the lateral process is shorter than most N. convexa   , a species of the Sierra Nevada, northern Central Valley and Cascade Range, but is longer than that of N. oblongata   in the Diablo Range. The lateral process is shorter than the shaft, separating this taxon morphologically from N. longiplutea   distributed farther north in the North Coast Ranges. Curved apical margins and a distinct central groove on the triangular subgenital plate will separate females of this species from N. carinata   , N. diabolica   , and N. oblongata   which are pentagonal with straight apical margins. The subgenital plate of N. longiplutea   to the north is longer than wide with a bifurcate apex in contrast to the subequal length and width and entire, acute apex of this species. Calling song will separate this species from N. carinata   , N. oblongata   , and N. diabolica   as all are species with similar length MPT and OPT and fast PTR.

Etymology. l. ambagiosa   circuitous, indirect, roundabout, referring to the distribution being the southwestern extent of a ring of Convexa Clade taxa around the Central Valley ( Fig. 8 View FIGURE 8 ).

Notes. This species has exchanged genes with populations of N. carinata   (see also Notes section under N. carinata   species account). In addition to DNA evidence ( Fig. 4 View FIGURE 4 ), males from a population along Putah Creek in Solano County have a high stridulatory file tooth density as in N. carinata   but sing with N. convexa   song, albeit with a faster PTR that may be influenced by N. carinata   alleles. The geography of this hybrid population suggests that other populations from the northern and eastern Bay Area may also have hybrid characteristics. Stridulatory files from north Bay Area populations that we have examined are within the range for this species. Populations in inland locations such as Solano County may experience gene flow that is otherwise prevented across the Coast Ranges by San Francisco Bay.A precopulatory pair was observed (JAC pers. obs.) at the type locality ( Fig. 2G View FIGURE 2 , Plate 1B View PLATE 1 ). After phonotaxis the female oriented directly behind the male and palpated the male with her antennae.

Material examined. DETERMINED (n = 51): All USA, CA   , Alameda Co., 1♁, Berkeley , Strawberry Canyon, 37.871593N, 122.272747W, 4-VII-1959, RW GoogleMaps   Thorp , CAS   ; Humboldt Co., 1♁, Scotia , 40.482357N, 124.100881W, 18-VII-1958, JR Helfer, CAS GoogleMaps   ; Lake Co., in addition to type material (above), 2♁, 1♀, Anderson Springs , 38.775N, 122.69194W, 29-VII-1961, JS Buckett, BMED GoogleMaps   ; 1♀, Anderson Springs , 38.775N, 122.69194W, 7-VIII-1955, JS Buckett, BMED GoogleMaps   ; 1♁, Blue Lakes , 39.17111N, 123.01111W, 414 m, 30-VII-1949, HA Hurt, BMED GoogleMaps   ; 1♁, SR20, mile marker 114, 39.01101N, 122.4908W, 423 m, 5-VIII-2014, JA Cole, DB Weissman, JAC GoogleMaps   sound record; Marin Co., 1♁, 2.9 km Samuel P Taylor State Park , 38.02583N, 122.72667W, 61 m, 27-IX-1981, VF Lee, CAS GoogleMaps   ; 1♁, Lagunitas , 38.011312N, 122.702208W, 5-VII-2009, EC VanDyke, CAS GoogleMaps   ; 1♁, 1♀, Lake Lagunitas , 37.946869N, 122.594742W, 24-VI-1958, DC Rentz, CAS GoogleMaps   ; 1♁, McClures Beach , 38.187421N, 122.965276W, 15-VII-1960, JS Buckett, BMED GoogleMaps   ; 1♁, same data except CAS GoogleMaps   ; 1♁, same data except 2-X-1960, JS Buckett, BMED GoogleMaps   ; 1♁, same data except 6-VIII-1964, JS Buckett, BMED GoogleMaps   ; 2♁, Tomales Bay State Park , beach area, 38.166667N, 122.916667W, 16-VI-1978, DB Weissman, CAS GoogleMaps   ; Mendocino Co., 5♁, Mendocino , 39.307674N, 123.799459W, 37 m, 1960, ER Tinkham, CAS GoogleMaps   ; 1♀, same data except 10-XI-1959, JR Helfer, CAS GoogleMaps   ; 1♁, same data except, 10-XI-1961, JR Helfer, CAS GoogleMaps   ; 1♁, same data except 15-X-1959, JR Helfer, CAS GoogleMaps   ; 1♀, same data except 15-XI-1953, JR Helfer, CAS GoogleMaps   ; 1♁, 1♀, same data except 20-X-1962, JR Helfer, CAS GoogleMaps   ; 1♀, same data except 22-X-1961, JR Helfer, CAS GoogleMaps   ; 1♀, same data except, 3-X-1958, JR Helfer, CAS GoogleMaps   ; 1♁, same data except 3-XI-1959, JR Helfer, CAS GoogleMaps   ; 1♁, same data except 3-XI-1961, JR Helfer, CAS GoogleMaps   ; 1♁, same data except 30-X-1959, JR Helfer, CAS GoogleMaps   ; 1♀, same data except 5-XII-1958, JR Helfer, CAS GoogleMaps   ; 3♁, Ukiah , 39.15017N, 123.20778W, 196 m, 2014, JN Hogue, CSUN GoogleMaps   ; 1♁, 3♀, Mendocino Co., 20-VII-1923, ER Leach, CAS   ; Napa Co., 1♁, end of Atlas Peak Road 10 mi. airline N of Napa, 38.450743N, 122.262753W, 6-VII-1973, JA Sutro, CAS GoogleMaps   ; 1♀, north side Howell Mountain , 2 miles NNE Angwin, 38.602527N, 122.435787W, 396 m, 18-X-1974, HB Leech, CAS GoogleMaps   ; San Francisco Co., 5♁, Lands End , 37.787707N, 122.505528W, 17-X-1909, FX Williams, CAS GoogleMaps   ; Solano Co., 1♀ nymph, Green Valley , 38.227515N, 122.151579W, 34 m, 16-VI-1953, AA Grigarick, BMED GoogleMaps   ; Sonoma Co., 1♁, Bodega Bay , 38.33325N, 123.048057W, 20-VII-1974, LD & MD GoogleMaps   Anderson , UCR; QUESTIONABLE PLACEMENT (n = 20)   : Alameda Co., 1♀, Oakland Hills , 37.804372N, 122.270803W, 6-IX-1948, CD MacNeill, CAS GoogleMaps   ; Marin Co., 1♁, McClures Beach , Pt. Reyes Peninsula, 38.187421N, 122.965276W, 2-X-1960, JS Buckett, CAS GoogleMaps   ; 1♀, Mill Valley , 37.89076N, 122.523586W, 2-VIII-1925, EP VanDuzee, CAS GoogleMaps   ; 1♀ nymph, same data except 24-VI-1923, EP VanDuzee, CAS GoogleMaps   ; 1♀ nymph, same data except 25-VI-1925, EP VanDuzee, CAS GoogleMaps   ; 1♀, same data except 26-VII-1926, EP VanDuzee, CAS GoogleMaps   ; 1♀, same data except 27-VI-1925, EP VanDuzee, CAS GoogleMaps   ; 1♀, same data except 5-VII-1925, EP VanDuzee, CAS GoogleMaps   ; 1♀, same data except 7-XI-1925, EP VanDuzee, CAS GoogleMaps   ; 2♁, Mount Tamalpais , NE slope, 37.927425N, 122.591924W, 700 m, R GoogleMaps   Hunt , BMED   ; Mendocino Co., 1♀, Navarro , 39.151843N, 123.541956W, 18-XII-1973, DO Clark, CSCA GoogleMaps   ; 1♁, VanDamme State Park , 39.27639N, 123.77333W, 13-X-1979, T GoogleMaps   Tyler , CSCA   ; Napa Co., 1♀, Hwy 121, 6 mi. NW of Napa, 38.403064N, 122.4184W, no collector, CSCA GoogleMaps   ; 1♀ nymph, Lake Berryessa , 38.58903N, 122.229496W, 20-V-1961, CD Macneill, CAS GoogleMaps   ; Solano Co., 1♁, Vallejo , 38.104086N, 122.256637W, 18 m, 6-VIII-1956, D Haug, CSCA GoogleMaps   ; Sonoma Co., 1♁ nymph, Cazadero , 38.533246N, 123.08528W, 36 m, 5-VII-1962, R GoogleMaps   Bartges , BMED   ; 1♀, Jenner , 38.449636N, 123.115559W, 17-X- 1937, no collector, BMED GoogleMaps   ; 1♀ nymph, Kenwood , 38.4138N, 122.546094W, 126 m, 14-V-1960, TH Gantenbein, BMED GoogleMaps   ; 1♀ nymph, Stillwater Cove , 38.545833N, 123.298611W, 23-V-1954, EI Schlinger, BMED; HYBRIDS WITH GoogleMaps   N. CARINATA   : Napa Co., 1♀, Monticello Dam , 38.513394N, 122.104351W, 8-X-1969, F Andrews, CSCA GoogleMaps   ; Solano Co., 3♁, Lake Solano County Park , 5 mi. SW of Winters off SR128, 38.49576N, 122.03399W, 51 m, 30- VII-2016, JA Cole, LACM GoogleMaps   ; 12♁, 3♀, same data except 31-VII-1-VIII-2013, JA Cole, LACM GoogleMaps   ; 7♁, same data except 31-VII-2014, JA Cole, DB Weissman, LACM GoogleMaps   ; 2♁, 1♀, same data except 31-VII-1-VIII-2013, JA Cole, JAC GoogleMaps   ; 1♀, same data except 25-VII-2019, JA Cole, JAC GoogleMaps  

CA

Chicago Academy of Sciences

T

Tavera, Department of Geology and Geophysics

CAS

California Academy of Sciences

LACM

Natural History Museum of Los Angeles County

JAC

University of Jodhpur

CSUN

California State University, Northridge

MD

Museum Donaueschingen

R

Departamento de Geologia, Universidad de Chile

CSCA

California State Collection of Arthropods

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tettigoniidae

Genus

Neduba