Ancylometes bogotensis (♂,♀) (Keyserling, 1877)

transfers and synonyms

Ctenus bogotensis Keyserling, 1877
Lycoctenus bogotensis: Pickard-Cambridge 1897
Lycoctenus colombianus Pickard-Cambridge, 1897; 1901
Lycoctenus palustris Pickard-Cambridge, 1898
Ancylometes bogotensis: Simon 1898; Roewer 1954; Bonnet 1955
Ancylometes orinocensis Simon,1898; Roewer 1954; Bonnet 1955
Ancylometes palustris: Simon 1898; Roewer 1954; Bonnet 1955
Lycoctenus venezuelensis Strand, 1909; 1912
Lycoctenus caracasensis Strand, 1910
Ancylometes caracasensis: Petrunkevitch 1911; Roewer 1954; Bonnet 1955
Ancylometes colombianus: Petrunkevitch 1911
Ancylometes acostae Schenkel, 1953; Brignoli 1983
Ancylometes venezuelensis: Roewer 1954; Bonnet 1955
Ctenus nasutus Kraus, 1955; Brignoli 1983


Central America, northern and western part of South America. Specimens collected in Recife are probably introduced.

description male

(specimen deposited at SMNK 311):
Prosoma brown with broad lateral white bands, eye region surrounded by white hairs. Chelicerae with white hairs near base. Abdomen and legs yellowish brown.
Palpal tibia with curved ventral and black lateral apophysis. Embolus broad at base, with rounded rectangular membranous lobe, and small knob pointing to this lobe. Embolus forming a semicircle and ending filiform beneath apex of cymbium, median part embedded in conductor. Opposite to conductor a hammer-like median apophysis with internal bulge.
Chelicerae with 3 promarginal and 4(3) retromarginal teeth, third if present very small.
Measurements: Total length 21.0. Prosoma 11.2 long, 9.5 wide. Clypeus 0.75.
Eye diameters and interdistances: AME 0.45, ALE 0.35, PME 0.55, PLE 0.6; AME-AME 0.35, AME-ALE 0.4, PME-PME 0.15, PME-PLE 0.5, AME-PLE 1.0, AME-PME 0.25, MOQ length 1.3, front width 1.2, back width 1.35.
Legs: I-femur 12.0/ patella 5.7/ tibia 11.7/ metatarsus 11.2/ tarsus 6.6/ total 47.5; II- 11.4/ 5.5/ 10.3/ 10.3/ 6.0/ 43.5; III- 10.0/ 4.3/ 8.8/ 10.0/ 5.1/ 38.5; IV- 12.0/ 5.0/ 11.2/ 14.3/ 6.0/ 48.5. Cymbium 4.0 long, 2.3 wide, median apophysis 1.4 long.
Leg spination: Femora I-II p1-1-1-1, r1-1-1, d1-1-1; III p1-1-1-1, r1-1-1-1, d1-1-1; IV p1-1-1, r1-1-1, d1-1-1; patellae I-IV p1, r1; tibiae I v2-2-2-2, p1-1, r1-1, d1-1-1; II v2-1-1-1-1-1-2, p1-1, r1-1-1, d1-1-1; III-IV v2-2-2, p1-1, r1-1, d1-1-1; metatarsi I-II v2-2-1, p1-1-1, r1-1-1; III v2-2-2, p1-1-1-1, r1-1-1, d1-1-1-2; IV v2-1-1-1-1-2, p1-1-1-1, r1-1-1, d1-1-1-2; tarsi III-IV v4-9. Palpal femora p1, r1, d1-1-1; patellae p1; tibiae p1-1, r1.
Coloration of living specimens: Males generally somewhat lighter brown than females, Prosoma with broad lateral yellow bands.

description female

(specimen deposited at SMNK 1435):
Whole body uniformly light brown, femora patchy brown.
Chelicerae with 3 promarginal and 4 retromarginal teeth, third very small.
Epigyne: Median plate triangular, with narrow prominent protuberance. Epigynal openings located anteriorly, copulatory ducts broad and straight, reaching spermathecae ventrally, spermathecae wide apart.
Measurements: Total length 26.0. Prosoma 13.4 long, 10.8 wide. Clypeus 0.85. Eye diameters and interdistances: AME 0.5, ALE 0.4, PME 0.6, PLE 0.7; AME-AME 0.35, AME-ALE 0.35, PME-PME 0.3, PME-PLE 0.6, AME-PLE 1.0, AME-PME 0.4, MOQ length 1.6, front width 1.3, back width 1.5. Epigynal median plate 1.5 long, 1.1 wide.
Legs: I-femur 11.1/ patella 5.2/ tibia 9.8/ metatarsus 8.1/ tarsus 4.8/ total 39.5; II- 10.1/ 5.2/ 8.5/ 7.4/ 4.1/ 36.0; III- 9.0/ 5.0/ 7.6/ 8.1/ 3.7/ 34.0; IV- 11.5/ 5.6/ 10.6/ 13.5/ 5.2/ 47.0.
Leg spination: Femora I-II p1-1-1-(1), r1-1-1, d1-1-1; III-IV p1-1-1-1, r1-1-1, d1-1-1-(1); patellae III-IV p1, r1; tibiae I-II v2-2-2-2, p1-1; III-IV v2-2-2, p1-1, r1-1, d1-1-1; metatarsi I-II v2-2-1, p1, r1; III v2-2-2, p1-1-1, r1-1-1, d1-2-2; IV v2-1-1-1-1-2, p1-1-1, r1-1-1, d2-1-1-2; tarsi III-IV v8-12. Palpal femora p1, r1, d1-1-2; patellae p1; tibiae p1-1, r1; tarsi p2-1, r1.
Coloration of living specimens: Prosoma dark reddish brown, abdomen generally light brown. Clypeus and chelicerae covered by white hairs. Distal parts of legs (tarsi to tibiae) whitish by hair cover, femora spotted by white hairs.


Merrett P. (1988):
Notes on the biology of the neotropical pisaurid Ancylometes bogotensis (Keyserling) (Araneae: Pisauridae). Bulletin of the British Arachnological Society. 7: 197-201
Lyctoctenus bogotensis from O.P.Cambridge, 1872
Lyctoctenus bogotensis from O.P.Cambridge, 1872
male palp (SEM)
male palp (SEM)
female epigyne (SEM)
female epigyne (SEM)