Thaumasia Perty 1833
Creators: name: Cruz Da Silva, Estevam L.
name: Carico, James E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Phaeophyceae
Fucales
Fucaceae
Thaumasia

description: Thaumasia Perty, 1833   
Figs. 1–155  
 Thaumasia Perty, 1833: 192, pl. 38, fig. 5. Walckenaer, 1837: 561. O. Pickard-Cambridge, 1897: 94. Simon, 1898a: 313. Petrunkevitch, 1928: 104.   
 Type species. Thaumasia senilis Perty, 1833, by original designation.   
 Diagnosis. The males of Thaumasia can be distinguished from those of Architis (Santos, 2007b, fig. 2A) and Tinus (Carico, 1976, fig. 8) by the well developed distal tegular projection and median apophysis and by the very long embolus (Figs 34, 52, 56, 76, 84, 88, 98, 111, 115, 125, 130, 140, 144). The females can be distinguished from the latter genera by the epigynum with a slightly projected and laterally excavated middle field (Figs 26, 44, 60, 68, 80, 92, 103, 104, 107, 119, 134, 137), by the slightly developed lateral lobes (Fig. 60, 68, 80, 92, 103, 104, 107, 119, 134, 137), by the conspicuous copulatory ducts (CD1 and CD2) (Figs 40, 45, 61, 71, 81, 93, 105, 108, 121, 135, 138) and by the small, rounded head of spermathecae (Figs 42, 62, 73, 82, 94, 106).   
 Description. Small (Thaumasia argenteonotata) to large spiders (Thaumasia oriximina sp. nov., Figs 7, 8, and T.velox, Fig. 6). Anterior eye row straight to slightly procurved, posterior recurved (Figs 10–25). PLE and PME always larger than other eyes (Figs 10–25). Chelicerae light brown to reddish-brown (Figs 10–25), with a lateral tuft of small to long white bristles in males of most species (Figs 10–25); promargin with three equidistant teeth, the central tooth is twice the size of each lateral; retromargin with three teeth (Fig. 47). Sternum smooth, with scattered bristles. Labium usually smooth and light brown. Legs long and slender, leg III always the shortest. Tibiae I with conspicuous ventral pairs of macrosetae varying from four to five. Trichobothria of metatarsi with a smooth hood (Fig. 95). Superior tarsal claws with eight to eleven teeth (Figs 43, 49, 66, 75, 83, 97, 102, 110, 118, 124, 129, 139) and inferior with one or two teeth (Figs 67, 129). Abdomen longer than wide, dorsum with one to two pairs of sigillae. Male palpi with an elongated cymbium (Figs 32, 36, 52, 56, 78, 85, 90, 98, 113, 116, 126, 132, 142, 146, 150, 152), median apophysis conspicuous and with a large distal tegular projection (Figs 31, 34, 52, 56, 76, 84, 88, 98, 111, 115, 125, 130, 140, 145, 148, 152); retrolateral tibial apophysis divided into an ental and an ectal branches (Figs 37, 53, 59, 79, 86, 91, 100, 114, 116, 127, 133, 143, 147, 151, 153). Female epigynum with a slightly projected and laterally excavated middle field and a hood visible in ventral view (Figs. 44, 60, 68, 80, 92, 104, 107, 119, 134, 137, 154); copulatory ducts divided in CD1 and CD2 (Figs 41, 45, 61, 71, 81, 93, 105, 108, 122, 135, 138, 155), pocket membranous (Fig 27, 45, 61, 72, 81, 93, 105, 108, 122, 135, 138, 155) and head of spermathecae conspicuous,with apical pores (Figs 42, 62, 73, 82, 94, 106).   
 Distribution. Mexico to Argentina (Figs. 1–4).   
 Composition. 17 species, ten of them newly described here.
description: Published as part of Cruz Da Silva, Estevam L. & Carico, James E., 2012, 3567, pp. 1-64 in Zootaxa 3567 on page 6