Maratus calcitrans, Otto & Hill, 2012

Otto, Jürgen C. & Hill, David E., 2015, Two new peacock spiders of the calcitrans group from southern Queensland (Araneae: Salticidae: Euophryinae: Maratus), Peckhamia 121 (1), pp. 1-34: 32-34

publication ID

http://doi.org/10.5281/zenodo.5114401

publication LSID

lsid:zoobank.org:pub:7C18F76C-6236-419D-A67C-F453BAF3E92B

persistent identifier

http://treatment.plazi.org/id/03C9878A-FFBD-CC7C-FE7F-FF09FD4DFE6D

treatment provided by

Carolina

scientific name

Maratus calcitrans
status

 

The calcitrans   group of the genus Maratus  

The five known members of the calcitrans   group, all from eastern Australia, are quite distinct ( Figures 37- 38 View Figure 37 View Figure 38 ). Males of all species in this group display a fan bearing a pattern of bold transverse stripes, and all display a single leg III to the female during the fan dance. In M. plumosus   the elevated and extended leg III is contralateral to the direction that the fan is rotated during display, and in M. sceletus   the elevated leg III is held in a flexed position. The anterior surface of leg III of M. plumosus   (iridescent blue) and M. sceletus   (prominent black stripe) appears to figure prominently in their displays, whereas the movement of leg III appears to be of more importance in the other three species. All except M. plumosus   inflate the posterior opisthosoma and two pairs (median and posterior) of spinnerets during this display. The extent to which these inflated spinnerets are moved during display varies from very rapid in M. sceletus   to almost no movement at all in M. jactatus   . M. plumosus   has ordinary spinnerets, but special plume-like extensions at the posterior end of the fan have the appearance of spinnerets (Otto & Hill 2012, 2013).

Three of the species in this group have lateral opisthosomal flaps that can be used to extend the width of the fan during display, but these are quite different from each other. The flaps of M. jactatus   are narrow and represent simple extensions of the fan. Those of M. digitatus   are semicircular with dull-green iridescent scales that contrast with those of the dorsal plate, and do not appear to play a major role in the fan dance itself, when they remain folded or retracted (Otto & Hill 2012). M. plumosus   males have more complex flaps, including an eye-like, circular posterior portion, and the flaps on each side are usually extended only when the flaps of the opposite side are retracted. The appearance and use of the pedipalps by M. sceletus   in display is unique. The fan dance of all species in this group is assymetrical, alternating between display to the left or to the right side.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Maratus