Tetragnatha gracilis ( Bryant, 1923 ), Bryant, 1923

Dimitrov, Dimitar, Álvarez-Padilla, Fernando & Hormiga, Gustavo, 2008, Until dirt do us apart: On the unremarkable palp morphology of the spider Sternospina concretipalpis Schmidt & Krause, 1993, with comments on the genus Prionolaema Simon, 1894 (Araneae, Tetragnathidae), Zootaxa 1698, pp. 49-56: 55

publication ID

http://doi.org/ 10.5281/zenodo.180745

persistent identifier

http://treatment.plazi.org/id/BA4BE173-6F3A-300A-FF0F-BC9CBE42FC99

treatment provided by

Plazi

scientific name

Tetragnatha gracilis ( Bryant, 1923 )
status

new combination

Tetragnatha gracilis ( Bryant, 1923)   new combination

( Fig. 3 View FIGURE 3 A –G; Fig. 4 View FIGURE 4 A –C)

Prionolaema gracilis Bryant, 1923: 11   , pl. 1, f. 3

T. earmra Levi, 1981: 294   , f. 35–45, pl. 5 c. New synonymy

Types. Prionolaema gracilis   : four syntypes from Antigua and Barbuda, Antigua, University of Iowa Expedition vi. 1918 ( MCZ 21481 View Materials , examined). Tetragnatha earmra   : male holotype from USA, Florida, Dade Co., Everglades Natl. Park, Earmra   , SE Island. 28.i. 1973, ( MCZ 21149 View Materials , examined).

Justification of the transfer: Detailed examination of syntypes of P. gracilis   ( Fig. 3 View FIGURE 3 A –G) suggests that these animals belong to the genus Tetragnatha   . Further comparison of male palpal morphology ( Fig. 3 View FIGURE 3 A –C) with drawings and the type material of T. earmra   confirmed that these specimens belong to the same species. The female genital morphology is also as in T. earmra   ( Fig. 4 View FIGURE 4 A –C). Based on these observations we consider the transfer of P. gracilis   fully justified. The species T. earmra   should be regarded as a junior synonym of P. gracilis   .

Despite its relatively smaller chelicerae, compared to other Tetragnatha   species, all other characters clearly place this species in the genus Tetragnatha   . Not surprisingly, Bryant (1923) was uncertain of the generic placement of gracilis   : “I am not quite satisfied as to the generic position of this species.” The finding of T. gracilis   on the island of Antigua broadens southward the known distribution of this species, which before this study was known only from Florida.

MCZ

Museum of Comparative Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Tetragnatha

Loc

Tetragnatha gracilis ( Bryant, 1923 )

Dimitrov, Dimitar, Álvarez-Padilla, Fernando & Hormiga, Gustavo 2008
2008
Loc

T. earmra

Levi 1981: 294
1981
Loc

Prionolaema gracilis

Bryant 1923: 11
1923