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Proposal and phylogenetic relationships of Lapsamita, a new genus of lapsiines, and description of a new species (araneae, salticidae).

Ruiz GR - PLoS ONE (2013)

Bottom Line: The presence of palpal claws in females, long ventral spines on front tibiae and metatarsi and long retrolateral tibial apophyses in male palps suggested that the species was closely related to or even nested within Soesiladeepakius Makhan, 2007.The analysis showed L. maddisoni as the sister group of Soesiladeepakius, supporting the proposal of the new genus.Character evolution is discussed and compared to a previous study on the group.

View Article: PubMed Central - PubMed

Affiliation: Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil. gustavoruiz86@hotmail.com

ABSTRACT
Lapsamita maddisoni gen. et sp. nov. is described from Bahia, Brazil. The presence of palpal claws in females, long ventral spines on front tibiae and metatarsi and long retrolateral tibial apophyses in male palps suggested that the species was closely related to or even nested within Soesiladeepakius Makhan, 2007. To evaluate its phylogenetic position, a cladistic analysis was carried out using a data matrix comprising 24 morphological characters, scored for 13 taxa. The analysis showed L. maddisoni as the sister group of Soesiladeepakius, supporting the proposal of the new genus. Character evolution is discussed and compared to a previous study on the group.

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Lapsamita maddisoni gen. et sp. nov.- A. left male palp, prolateral view. - B. same, ventral view. - C. same, retrolateral view. - D. distal portion of left male palp, expanded, bulb in retroventral view. - E. detail of expanded embolus, retroventral view. - F. same, dorsal view. - G. female epigyne, ventral view. - H. same, dorsal view, cleared.
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pone-0056188-g002: Lapsamita maddisoni gen. et sp. nov.- A. left male palp, prolateral view. - B. same, ventral view. - C. same, retrolateral view. - D. distal portion of left male palp, expanded, bulb in retroventral view. - E. detail of expanded embolus, retroventral view. - F. same, dorsal view. - G. female epigyne, ventral view. - H. same, dorsal view, cleared.

Mentions: Medium-sized yellowish jumping spiders with darker carapaces and front legs (Figs. 1A–B). Carapace elliptical. Salticoid eye pattern. Black rings around eyes very conspicuous. Chelicera small and vertical in both sexes, with 3 promarginal and 2 retromarginal teeth (typical lapsiine dentition). Palpal femur with no depressions or apophyses; RTA very long, relocated dorsally. Tegulum globular with a long posterior projection (Fig. 2C). No articulated median apophysis (Fig. 2B). Embolus short, flexible, with a large base and an acute tegular apophysis (conductor?) adjacent to it (Fig. 2E). Females with palpal claw (Fig. 1D). Strong ventral spines on leg I in both sexes (Fig. 1C). Other leg spines of normal size. Neither sex with dorsal abdominal scutum (Figs. 1A–B). Epigyne with anterior transverse flap, small openings on the inner sides of a large atrium and short copulatory ducts converging towards the posterior border, where small spermathecae are located (Figs. 2G–H); large globose glandular (nutritive?) portions associated with the copulatory openings (Fig. 2H).


Proposal and phylogenetic relationships of Lapsamita, a new genus of lapsiines, and description of a new species (araneae, salticidae).

Ruiz GR - PLoS ONE (2013)

Lapsamita maddisoni gen. et sp. nov.- A. left male palp, prolateral view. - B. same, ventral view. - C. same, retrolateral view. - D. distal portion of left male palp, expanded, bulb in retroventral view. - E. detail of expanded embolus, retroventral view. - F. same, dorsal view. - G. female epigyne, ventral view. - H. same, dorsal view, cleared.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3585316&req=5

pone-0056188-g002: Lapsamita maddisoni gen. et sp. nov.- A. left male palp, prolateral view. - B. same, ventral view. - C. same, retrolateral view. - D. distal portion of left male palp, expanded, bulb in retroventral view. - E. detail of expanded embolus, retroventral view. - F. same, dorsal view. - G. female epigyne, ventral view. - H. same, dorsal view, cleared.
Mentions: Medium-sized yellowish jumping spiders with darker carapaces and front legs (Figs. 1A–B). Carapace elliptical. Salticoid eye pattern. Black rings around eyes very conspicuous. Chelicera small and vertical in both sexes, with 3 promarginal and 2 retromarginal teeth (typical lapsiine dentition). Palpal femur with no depressions or apophyses; RTA very long, relocated dorsally. Tegulum globular with a long posterior projection (Fig. 2C). No articulated median apophysis (Fig. 2B). Embolus short, flexible, with a large base and an acute tegular apophysis (conductor?) adjacent to it (Fig. 2E). Females with palpal claw (Fig. 1D). Strong ventral spines on leg I in both sexes (Fig. 1C). Other leg spines of normal size. Neither sex with dorsal abdominal scutum (Figs. 1A–B). Epigyne with anterior transverse flap, small openings on the inner sides of a large atrium and short copulatory ducts converging towards the posterior border, where small spermathecae are located (Figs. 2G–H); large globose glandular (nutritive?) portions associated with the copulatory openings (Fig. 2H).

Bottom Line: The presence of palpal claws in females, long ventral spines on front tibiae and metatarsi and long retrolateral tibial apophyses in male palps suggested that the species was closely related to or even nested within Soesiladeepakius Makhan, 2007.The analysis showed L. maddisoni as the sister group of Soesiladeepakius, supporting the proposal of the new genus.Character evolution is discussed and compared to a previous study on the group.

View Article: PubMed Central - PubMed

Affiliation: Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil. gustavoruiz86@hotmail.com

ABSTRACT
Lapsamita maddisoni gen. et sp. nov. is described from Bahia, Brazil. The presence of palpal claws in females, long ventral spines on front tibiae and metatarsi and long retrolateral tibial apophyses in male palps suggested that the species was closely related to or even nested within Soesiladeepakius Makhan, 2007. To evaluate its phylogenetic position, a cladistic analysis was carried out using a data matrix comprising 24 morphological characters, scored for 13 taxa. The analysis showed L. maddisoni as the sister group of Soesiladeepakius, supporting the proposal of the new genus. Character evolution is discussed and compared to a previous study on the group.

Show MeSH