Tetragnatha laboriosa (Hentz, 1850)

Castanheira, Pedro de Souza, Baptista, Renner Luiz Cerqueira & Oliveira, Francisca Samia Martins, 2022, Five new species of the long-jawed orb-weaving spider genus Tetragnatha (Araneae, Tetragnathidae) in South America, with a key to the species from Argentina and Brazil, Evolutionary Systematics 6 (2), pp. 175-210 : 175

Tetragnatha laboriosa (Hentz, 1850)

Fig. 11

Tetragnatha laboriosa Hentz, 1850: 27, plate 4, fig. [male syntype destroyed; male neotype designated by Levi (1981) from USA, Massachusetts, Middlesex, Holliston, in MCZ 21762].

Additional records.

Argentina - • Tetragnatha americana : one female, Río Santa Cruz, Santa Cruz, Patagonia (MNHN 3140). Chile: 6 males, 2 females ( T. americana : Simon det., MNHN 12628).

Notes.

See the section on T. nitens for additional information. Some of the specimens Simon (1896, 1905) identified as T. americana belong actually to T. laboriosa . We were able to analyse several specimens from Chile (MNHN 12628) and just one of the three females from Santa Cruz, Argentina (MNHN 3140, fig. 11) cited by Simon (1905) and confirmed that they are all typical T. laboriosa .

Figures

Figure 11. Tetragnatha laboriosa under T. americana, female (MNHN 3140). A. Dorsal habitus; B. Original label citing Santa Cruz, Argentina; C. Ventral habitus; D. Left chelicera, inner view; E. Chelicerae, apical view.