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Salticidae (Araneae) genera of the world - an atlas
(unfinished manuscript)
by Jerzy Prószyński

Professor Emeritus, Museum and Institute of Zoology, Polish Academy of Sciences,
ul. Wilcza 63, 00-679 Warsaw, POLAND

e-mail: jerzy.proszynski@wp.pl

Chapter 20

LIGONIPEINES
informal group of genera

Version May 20th, 2020

 


symbol of the supragroup MYRMARACHNOIDA

Composition. The following genera are included: Austra-ligo - unpublished, Damoetas Judalana Ligonipes Rhombonotus. Read also: Taxonomic position of Myrmarachne and related genera

Exemplary representatives of the group
A-C - Damoetas nitidus, D-E - Ligonipes sp., F - Rhombonotus gracilis (A- epigyne, B, E - palp, C - male chelicera, F - flattened tibia I). Copyrights - see below.

LIGONIPEINES - informal group of genera

Mutual diagnostic characters of genera included. Differ from MYRMARACHNINES by weakly pronounced ant likeness, including pedicel short, dorsal constrictions on carapace and abdomen shallow or absent, there are no lateral body constrictions (Figs 46P, 46R, 46S). Also differ by short chelicerae of both sexes, with comb like tooth (multicusp on mutual sclerotized base) located on expanded retrolateral edge of chelicerae. Strikingly different property of  LIGONIPEINES are legs I, with flattened, circular black tibia and robust femur, both contrasting with delicate, thin and light tarsus and metatarsus (that character is not pronounced in Damoetas!), which resemble BALLINES (from which they can be separated by "pipes-like" spermathecae (Figs 45E-H, 46Q) and type of palp).
Description. Palps intermediate between MYRMARACHNINES and EUOPHRYINES: coil of embolus broadened and loosely encircling bulbus (Figs 45E, H), exact way of embolus separation from bulbus is not yet demonstrated,  poorly known shape of spermophor may be tentatively  interpreted as modified meandering. Male chelicerae not expanded, cheliceral dentition - multicusp comb-like tooth on expanded retrolateral edge of chelicerae. Spermathecae with central part "pipes-like", as in MYRMARACHNINES, without detour, or distal enlargement, interpretation of proximal part of spermathecae and passage into ducts unclear, the latter seem to be thicker than usual membranous ones, as pictured on existing drawings.
Remark. Considered ant-like since Petrunkevitch (1928), were more correctly defined by Simon (1901) as intermediate morphologically (but not phylogenetically) between MYRMARACHNINES and BALLINES (with Marengo included!),

Gen. Damoetas Peckham & Peckham,1886
Type species nitidus (1 recognizable species)
See more at Damoetas-Q+M

- Damoetas nitidus.
SOURCE: Davies Todd V., Zabka M. 1989. Mem. Queensland Mus., 27 (2): 204, t. 11 + © Photo: Robert Whyte . All ©copyrights are retained by the original authors and copyright holders, used here by their courtesy.

Gen. Judalana Rix, 1999
Type species .Judalana lutea (1 recognizable species)
See more at Judalana-Q+M

A-D - Judalana luteam, E-G - Judalana sp..
SOURCE: A-D - Rix, M. G. 1999 Memoirs of the Queensland Museum 43(2): 827-832, E-G - © Photo: Robert Whyte.. All ©copyrights are retained by the original authors and copyright holders, used here by their courtesy.

Gen. Ligonipes Karsch, 1878
Type species Ligonipes illustris (3 recognizable species)
See more species at Ligonipes-Q+M

A - Ligonipes illustris (type specimen of the type species!), B-C - Ligonipes lacertosus, E - Ligonipes semitectus, F-G - Ligonipes sp., I-K - Ligonipes sp.
SOURCE: A-B - Proszynski 1984c: 158, 35, C-D - Davies Todd, Zabka 1989. 27 (2): 200-201, plate 8A, I-K -
© Photo: Robert Whyte. All ©copyrights are retained by the original authors and copyright holders, used here by their courtesy.

Gen. Rhombonotus Koch L., 1879
Type species Rhombonotus gracilis(x recognizable species)
See more species at Rhombonotus-Q+M

A-C - Rhombonotus gracilis, D-F - Rhombonotus sp. Australia, Myal Park, F - Marengo sp.from Singapore.
SOURCE: A-C - Zabka in Davies Todd V., Zabka M. 1989. Mem. Queens Mus. 27 (2): 200, t 9, D-E - © Photo: R. Whyte, F -© Photo. H. K. Tang. All ©copyrights are retained by the original authors and copyright holders, used here by their courtesy.

ATTENTION. The above photo "F", purporting to show a Marengo sp. from Singapore (without knowing its genitalic characters I cannot be sure of identification), illustrates morphological analogies between BALLINES and LIGONIPEINES and also futility of basing group classification on morphological similarities alone.

Presentation of unpublished diversity Austra-ligo
In hommage to Robert Whyte for his great art and science works of spider photographs
[=Austalian-Ligonipeinae] (6? recognizable species?)

COMMENT: These unpublished genera display so characteristic features that deserve special attention of arachnologists, lucky enough to encounter them. By the way - photographic documentation in this case seems entirely sufficient for diagnostic purposes and better than any pompous descriptions in words.

A9
.Six new [?] genera, apparently not described, from Australia.
SOURCE: ©Photo I.R. Macaulay. © Photo: Robert Whyte . All ©copyrights are retained by the original authors and copyright holders, used here by their courtesy.