Myrmarachne imbellis ( Peckham and Peckham, 1892 )

Benjamin, Suresh P., 2015, Model mimics: antlike jumping spiders of the genus Myrmarachne from Sri Lanka, Journal of Natural History 49 (43), pp. 2609-2666 : 2623-2625

publication ID

https://doi.org/ 10.1080/00222933.2015.1034209

publication LSID

lsid:zoobank.org:pub:B723C180-996B-471D-B920-4D08E7A8CD53

DOI

https://doi.org/10.5281/zenodo.4333070

persistent identifier

https://treatment.plazi.org/id/AF67681A-441C-0F41-2187-FD51FE618067

treatment provided by

Carolina

scientific name

Myrmarachne imbellis ( Peckham and Peckham, 1892 )
status

 

Myrmarachne imbellis ( Peckham and Peckham, 1892) View in CoL

( Figures 8A–F View Figure 8 , 9A–D View Figure 9 , 10A–C View Figure 10 , 11A–C View Figure 11 , 12A–F View Figure 12 )

Salticus imbellis Peckham and Peckham, 1892: 36 .

Type material

Syntypes of Salticus imbellis from Sri Lanka, one male and one juvenile, GW and EG Peckham collection, MCZ-21602 , examined .

Diagnosis

Very similar to M. dishani sp. n.; however, males are separated by the broad-based RTA with a stout tip ( Figures 10A–C View Figure 10 , 12A–C View Figure 12 ). Females are separated by the rounded CO and relatively longer S ( Figure 11A–C View Figure 11 ). Separated from M. dishani sp. n. by the presence of bands fringed with white hairs present in the chelicerae and prosoma of males ( Figure 9A–D View Figure 9 ).

Description

Male from Horton plains NP: total length: 6.8; prosoma length: 4.0, width: 1.4. Leg I: femur 1.2, patella 0.6, tibia 1.2, metatarsus 0.8, tarsus 0.4. Prosoma oval, almost as much as 2× longer than wide. The cephalic half is only slightly elevated from the thoracic half, lateral sides parallel. Opisthosoma cylindrical, almost as much as 2× longer than wide, uniformly dark brown ( Figure 8A–D View Figure 8 ). Preserved specimens are yellowish with darker lateral sides ( Figure 8A–D View Figure 8 ). All legs are brownish with dark rings, yellowish in preserved specimens. All eyes surrounded by dark rings. Chelicerae long but shorter than carapace with slightly convex inner and outer sides ( Figure 8A–D View Figure 8 ). The dorsal surface is broader than the ventral surface. Leg formula 4132. Leg spination not examined. Palps as in Figure 10A–C View Figure 10 . Female from Horton plains NP: total length: 5.6; prosoma length: 2.8, width: 1.2. Leg 1: femur 1.2, patella 0.6, tibia 1.2, metatarsus 0.8 tarsus 0.4. Morphology as above. Leg formula 4132. Leg spination not examined. Epigynum and vulva as in Figure 11A–C View Figure 11 . CO rounded and S relatively longer ( Figure 11A–C View Figure 11 ).

Distribution

Known only from Sri Lanka.

Other material examined

Sri Lanka, Central province, 1 male, Kandaela Reservoir , 5.6 mi SW of Nuwara Eliya, 1889 m, 10–21 February 1970, Davis & Rowe, USNM . 1 male, Horton plains NP, Worlds-end , 2072 m, 21 February 1970, Davis & Rowe, USNM . 1 female, Nuwara Eliaya District, Path to Pitdurutalagalla , in light jungle, 17 November 1972 – 18 January 1973, P. Lehtinen, A. Withanage, & N. Wickremasinghe, MZT . 2 males, Horton Plains NP, 9 March 2000, SP. Benjamin, MHNG . 2 males 1 female, Nuwara Eliaya District, Horton Plains NP, 20–21 February 2007, SP. Benjamin and Z. Jaleel, MHNG .

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

USNM

Smithsonian Institution, National Museum of Natural History

MHNG

Museum d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Myrmarachne

Loc

Myrmarachne imbellis ( Peckham and Peckham, 1892 )

Benjamin, Suresh P. 2015
2015
Loc

Salticus imbellis

Peckham GW & Peckham EG 1892: 36
1892
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