Niarchos cotopaxi, Platnick & Duperre, 2010

Platnick, Norman I. & Dupérré, Nadine, 2010, The Andean Goblin Spiders Of The New Genera Niarchos And Scaphios (Araneae, Oonopidae), Bulletin of the American Museum of Natural History 2010 (345), pp. 1-120 : 10-13

publication ID

https://doi.org/ 10.1206/727.1

persistent identifier

https://treatment.plazi.org/id/6217B027-FFC8-C559-E18B-FC3EA66DFAF9

treatment provided by

Tatiana

scientific name

Niarchos cotopaxi
status

sp. nov.

Niarchos cotopaxi View in CoL , new species Figures 5–27 View Figs View Figs

TYPE: Male holotype taken by hand collecting at an elevation of 3650 m at Laguna Limpiopungo , Parque Nacional Cotopaxi, 0u369490S, 78u289220W, Cotopaxi, Ecuador (Dec. 9, 2009; B. Baehr, Niarchos Exped. ), deposited in QCAZ (PBI_OON 433) .

ETYMOLOGY: The specific name is a noun in apposition taken from the type locality.

DIAGNOSIS: This seems to be the sister species of N. barragani , sharing with it a Wshaped posterior margin of the postepigastric scutum (figs. 25–27). Males differ from those of N. barragani in having a shorter, thicker embolus (figs. 13–17); females differ from those N. barragani by having a more strongly arched anterior margin on the anterior receptaculum and by having the posterior extensions of the thumblike anterior process diverging at a wide angle (figs. 26, 27).

MALE (PBI_OON 10202, figs. 5–17): Total length 2.05. Posterior eye row straight from above ; PLE-PME separated by less than PME radius. Sternum surface finely reticulate. Endites with anterior process posteriorly directed, shaped like duck’s beak. Leg spination: tibiae III, IV v0-0- 1p. Embolus short, directed retrolaterally; bulb with strong basal projection on retroventral side (figs. 13–17).

FEMALE (PBI_OON 10202, figs. 18–27): Total length 2.34. Leg spination: tibiae: III v0-0-1p ; IV v0-1p- 1p. Anterior genitalic elements visible through epigastric scutum, forming inverted Y flanked laterally by anterior receptaculum (figs. 26, 27).

OTHER MATERIAL EXAMINED: Ecuador: Cotopaxi: Laguna Limpiopungo, Parque Nacional Cotopaxi, 0u369490S, 78u289220W, Dec. 3–8, 2009, pitfalls, elev. 3865 m (N. Dupérre´, E. Tapia, Niarchos Exped., AMNH PBI _OON 393), 2 - (one without abdomen), 0.61407uS, 78.47341uW, Dec. 9, 2009, elev. 3830 m (M. Ramírez, C. Grismado, M. Izquierdo, F. Labarque, Niarchos Exped., MACN PBI _OON 30551), 1 U; along road to Laguna Limpiopungo, Parque Nacional Cotopaxi, 0u369490S, 78u289220W, Dec. 3–5, 2009, hand collecting, elev. 3650 m (N. Dupérre´, E. Tapia, A. Bonaldo, M. Izquierdo, Niarchos Exped., AMNH, MACN, MPEG, QCAZ PBI _OON 394, 395), 5 U, same, sifting moss (N. Dupérre´, E. Tapia, Niarchos Exped., AMNH PBI _OON 396), 1 U; 45 km NE Latacunga, July 19–25, 1985, carrion trap, shrub/grass paramo, elev. 3700 m (S., J. Peck, AMNH PBI_OON 29616), 1 -; on Volcán Cotopaxi, NNE Latacunga, June 23, 1975, Berlese, paramo moss and shrub litter, elev. 11,000 ft (S. Peck, FMNH 33700, PBI_OON 10202), 2 -, 1 U, same (FMNH 33712, PBI_OON 10214), 1 -.

DISTRIBUTION: Known only from the vicinity of Volcán Cotopaxi, Ecuador.

QCAZ

Museo de Zoologia, Pontificia Universidad Catolica del Ecuador

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Niarchos

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