Glenognatha dentata ( Zhu & Wen, 1978 ),

Jimmy Cabra-García & Antonio D. Brescovit, 2016, Revision and phylogenetic analysis of the orb-weaving spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae), Zootaxa 4069 (1), pp. 1-183: 53-59

publication ID

http://doi.org/10.11646/zootaxa.4069.1.1

publication LSID

lsid:zoobank.org:pub:52FC658C-78C7-49FC-9961-8AC43CA03101

persistent identifier

http://treatment.plazi.org/id/8E0E8F67-7D26-FFB2-ACBA-0F23FE40D421

treatment provided by

Plazi

scientific name

Glenognatha dentata ( Zhu & Wen, 1978 )
status

new combination

Glenognatha dentata ( Zhu & Wen, 1978)  new combination

( Figs. 38–44View FIGURE 38View FIGURE 39View FIGURE 40View FIGURE 41View FIGURE 42View FIGURE 43View FIGURE 44, 131View FIGURE 131)

Dyschiriognatha dentata Zhu & Wen, 1978: 16  , figs. 1–9 (female holotype from China, 24.x.1975, presumably deposited in the Jilin University, not examined; paratypes: 33♂ 36♀ 7 immature from China, presumably deposited in the Jilin University, not examined); Hu 1984: 133, figs. 135.1–8; Chen & Gao 1990: 74, figs. 93A –E; Okuma 1991: 15, figs. 1, 2A –F, 3A; Okuma et al. 1993: 31, figs. 28A –C; Song et al. 1999: 213, figs. 119O –R; Zhu et al. 2003: 204, figs. 111A –K, 112A –G, pl.

VIIA –D; Tanikawa 2007: 103, figs. 364–365, 812–814; Tanikawa 2009: 412, figs. 49–51; Cabra-García et al. 2014: 1029, figs. 1E, 2C, 2F, 5D, 7C; World Spider Catalog 2015.

Dyschiriognatha hawigtenera Barrion & Litsinger, 1995: 490  , figs. 300A –E, 301A –G (female holotype from Luzon Island, Philippines, 10.viii.1979, A. T. Barrion leg., deposited in the International Rice Research Institute, not examined). Synonymized by Zhu et al. 2003: 204.

Transfer justification. Study of D. dentata  specimens collected in Asia ( Myanmar, China, Vietnam and Japan) and the schematic drawings of the male genitalia and somatic characters of the original description ( Zhu & Wen, 1978), shows that this species has all the synapomorphies of the genus Glenognatha  . The conductor and the embolus, although highly modified ( Figs. 40View FIGURE 40, 43D –JView FIGURE 43), the female genitalia ( Figs. 41A –C, GView FIGURE 41) and the tracheal system ( Fig. 41D –FView FIGURE 41) exhibit the typical Glenognatha  morphology.

Diagnosis. Males of G. dentata  can be easily distinguished from all other Glenognatha  species by the prominent tooth-like projections on the distal retrolateral margin of the conductor ( Figs. 40BView FIGURE 40, 43GView FIGURE 43). Females are diagnosed by the presence of filiform projections in the membranous chamber ( Fig. 41AView FIGURE 41).

Description. Male and female described by Zhu & Wen (1978). Additional data.

Male ( Myanmar, USNM). Habitus as in Figures 38A –DView FIGURE 38. Cephalothorax with lateral pore-bearing and setaebearing depressions ( Fig. 38AView FIGURE 38, 42AView FIGURE 42). Cephalothorax 0.77 high. Abdomen 0.88 high. Sternum 0.55 long, 0.55 wide, with setae-bearing depressions ( Fig. 42C, HView FIGURE 42). Chelicerae as in Figures 39A –CView FIGURE 39, with small setae-bearing tubercles on the antero-ectal surface ( Fig. 39CView FIGURE 39). Cheliceral fang outgrowth well-developed ( Fig. 39AView FIGURE 39). Epiandrous fusules as in Figure 43BView FIGURE 43. Palp as in Figures 40E –HView FIGURE 40. Embolus and conductor highly modified ( Figs. 40View FIGURE 40, 43D –JView FIGURE 43).

Female ( Myanmar, USNM). Habitus as in Figures 38E –HView FIGURE 38. Cephalothorax with lateral pore-bearing and setaebearing depressions ( Figs. 38EView FIGURE 38). Cephalothorax 0.82 high. Abdomen 1.57 high. Sternum 0.52 long, 0.58 wide, with setae-bearing depressions. Chelicerae as in Figures 39D –FView FIGURE 39, with small setae-bearing tubercles on the antero-ectal surface ( Figs. 39FView FIGURE 39). Tracheal system as in Figures 41D –FView FIGURE 41. Genitalia with well-developed spermathecae ( Fig. 41A – C, GView FIGURE 41). UE entire ( Fig. 41AView FIGURE 41).

Variation. Male total length 1.6–2.2 (N =4; average 2.0), cephalothorax length 0.8–1.2 (N = 4; average 1.0), femur I length 1.0–1.3 (N = 4; average 1.2). Female total length 2.5–3.0 (N = 7; average 2.7), cephalothorax length 1.1–1.3 (N = 7; average 1.2), femur I length 1.0–1.2 (N = 7; average 1.1).

Distribution. Known from Bangladesh, China, India, Japan, Myanmar, Philippines and Vietnam ( Fig. 131View FIGURE 131).

Additional material examined (N = 18). CHINA: Hong Kong: Tai Po Tsai , [22º20´N, 114º15´E], elev. [7m], 1.iii.1961, E. Shingler leg., 1♀ ( AMNH)GoogleMaps  . JAPAN: Okinawa: [26º9´N, 127º53´E], elev. [15m], 22.vii.1945, C. T. Parsons & F. G. Werner leg., 1♂ ( MCZ 125497)GoogleMaps  .

New records. MYANMAR: Sagaing: Chattin Wildlife Sanct. Takontaing , 23º37´20´´N, 95º31´52´´E, elev. [179m], 7–12.x1998, Coddington & Baptista leg., 6♀ 3♂ 6 immature ( USNM)GoogleMaps  . VIETNAM: no specific locality, 2–20.xi1966, 1♂ ( MCZ 84023View Materials)  .

USNM

Smithsonian Institution, National Museum of Natural History

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Glenognatha

Loc

Glenognatha dentata ( Zhu & Wen, 1978 )

Jimmy Cabra-García & Antonio D. Brescovit 2016
2016
Loc

Dyschiriognatha hawigtenera

Zhu 2003: 204
Barrion 1995: 490
1995
Loc

Dyschiriognatha dentata

Zhu 2003: 204
Song 1999: 213
Okuma 1993: 31
Okuma 1991: 15
Chen 1990: 74
Hu 1984: 133
Zhu 1978: 16
1978