Myrmarachne ramunni Narayan, 1915

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 : 2651

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.4333060

persistent identifier

https://treatment.plazi.org/id/AF67681A-4438-0F7B-21DE-FF59FDC083C4

treatment provided by

Carolina

scientific name

Myrmarachne ramunni Narayan, 1915
status

 

Myrmarachne ramunni Narayan, 1915 View in CoL

( Figures 2E, F View Figure 2 , 3E, F View Figure 3 )

Myrmarachne ramunni Narayan, 1915: 400–402 View in CoL , figure 4a–c.

Identification

Types have not been examined. Narayan (1915) illustrates and describes the unique chelicerae of this species, aiding positive identification.

Material examined

Sri Lanka, Eastern Province, 1 male, Ampara District, Inginiagala, 250 ff, Samudra gardens, 22–23 November 1976, G.F. Havel, R.E. Dietz IV, S. Karunaratne, USNM .

Diagnosis

Very similar to M. bicurvata , however, males are easily separated by the chelicerae. The distal half of the chelicerae of M. ramunni is wider than the proximal half ( Figure 2E View Figure 2 ). The inner and outer sides of the proximal half are parallel, whereas the distal half has convex outer sides and parallel inner sides. M. bicurvata has parallel inner and outer sides ( Figure 2A, C View Figure 2 ). The RTA of the male palp is broad base and tapered to a point in one corner. In M. bicurvata the RTA is hook-shaped with a constriction at the base ( Figure 3B, E View Figure 3 ).

Description

Male: total length: 6.8; prosoma length: 4.4, width: 1.2. Leg I: femur 1.6, patella 0.6, tibia 1.6, metatarsus 0.8, tarsus 0.4. The cephalic part of the prosoma is elevated and rounded on all sides. The thoracic part is lower than the cephalic, the highest point being the centre ( Figure 2E, F View Figure 2 ). Opisthosoma oval, almost as wide as long, with no clear constriction ( Figure 2E, F View Figure 2 ). Dorsally sclerotized, ventrally softer. Chelicerae are characteristically long and stout, distal half is wider than the proximal half ( Figure 2E, F View Figure 2 ). The distal half is hammer-shaped. The inner and outer sides of the proximal half are parallel, whereas the distal half has convex outer sides and parallel inner sides. Chelicerae dentition not examined. Leg formula 4132. Leg spination not examined. Palps as in Figure 3E, F View Figure 3 . Female: remains unknown, but see Dyal (1935) for a description of a female attributed to this species.

Natural history

Borges et al. (2007) associated the ant Myrmicaria brunnea with this species (spiders identified as Myrmarachne morphospecies 3).

Distribution

India, Pakistan, Sri Lanka.

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Myrmarachne

Loc

Myrmarachne ramunni Narayan, 1915

Benjamin, Suresh P. 2015
2015
Loc

Myrmarachne ramunni

Narayan K 1915: 402
1915
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