Aprusia rawanaellensis, Ranasinghe & Benjamin, 2018

Ranasinghe, U. G. S. L. & Benjamin, Suresh P., 2018, Three new species of Aprusia (Araneae: Oonopidae) from Sri Lanka with a phylogenetic analysis of the genus, Journal of Natural History 52 (11 - 12), pp. 713-738 : 720-723

publication ID

https://doi.org/ 10.1080/00222933.2018.1444803

publication LSID

lsid:zoobank.org:pub:40352A9B-F455-4F41-B293-FF57BACA2997

persistent identifier

https://treatment.plazi.org/id/03E0DB46-FFD3-FFDA-FE40-FE7676C0FCCA

treatment provided by

Carolina

scientific name

Aprusia rawanaellensis
status

sp. nov.

Aprusia rawanaellensis View in CoL n. sp.

( Figures 3 View Figure 3 , 4 View Figure 4 )

Type material

Holotype. 1 ♂ ( IFS _Oon_223): Sri Lanka: Badulla District , Rawana Ella, forest around cave, 06°51ʹ52.4ʺN 81°03ʹ01.3ʺE, 990 m, 31 December 2011, leg. S. P. Benjamin et al., litter. Deposited in ZFMK. GoogleMaps

Paratypes. 1 ♂ ( IFS _Oon_224) and 2 ♀ ( IFS _Oon_225–226): same locality and data as holotype . Deposited in ZFMK.

Diagnosis

Males resemble those of A. kerala in having a pale coloured, narrowed, elongated bulb and a conical projection ( Grismado et al. 2011) but differ in having a straight embolus and a conductor ( Figure 4 View Figure 4 (b)). Females can be recognized by the thin, sclerotized, procurved ridge of the postepigastric scutum, the long anterior receptaculum and the undulated posterior receptaculum ( Figure 4 View Figure 4 (c)).

Description

Male. Body length: 1.84. Cephalothorax as in Figure 3 View Figure 3 (a), pars cephalica only slightly elevated, surface of elevated portion of pars cephalica smooth with randomly distributed small rounded pits, sides smooth. Eyes; all eyes subequal, circular, ALE-ALE and PME-PME touching, ALE-PLE separated by less than their radius. Sternum longer than wide ( Figure 3 View Figure 3 (b)), without radial furrows between coxae I–II, II–III, III–IV, surface smooth, with small hairs and few small pits, continuous margin (see arrow in Figure 3 View Figure 3 (b)), anterior margin concave, posterior margin extending posteriorly of coxae IV, distance between coxae I–II, II–III, III–IV approximately equal.

Abdomen as in Figure 3 View Figure 3 (a). Dorsal scutum sclerotized, pale orange, without colour pattern, covering about 3/4 of abdomen, more than 1/2 to most of abdomen width ( Figure 3 View Figure 3 (a)), not fused to epigastric scutum. Postepigastric scutum sclerotized, pale orange, almost rectangular, covering about 1/2 of abdominal length, fused to epigastric scutum( Figure 3 View Figure 3 (b)). Two light brown patches located above the spinnerets ( Figure 3 View Figure 3 (b)). Legs; strong spines on leg I and II present, leg I: femur, pv0–0–1–1–1–1;, tibia, v2–2–2–2–2–0; metatarsus, v2–2–0; leg II: femur pv0–0–0–1– 1; tibia v2–2–2–2–2–0; metatarsus, v2–2–0, claw like setae present on legs III and IV.

Genitalia. Sperm pore large, circular, situated at level of anterior spiracles ( Figure 3 View Figure 3 (b)). Palp not strongly sclerotized, femur longer than patella. Cymbium pale orange, completely fused with bulb, no seam visible, with distal patch of setae, distal part with a tiny conical projection ( Figure 4 View Figure 4 (b)). Bulb narrowed, elongated, slightly tapering apically

without ventral concavity ( Figure 4 View Figure 4 (a)), Embolus pale, straight, conductor shorter than embolus ( Figure 4 View Figure 4 (b)).

Female. Body length: 2.38. As in male except as noted. Female palpal claws and spines absent, tarsus smooth. Posterior spiracles connected by groove. Dorsal scutum covering 1/4 of abdomen ( Figure 3 View Figure 3 (c)). Postepigastric scutum only around epigastric furrow, not fused to epigastric scutum ( Figure 3 View Figure 3 (d)).

Genitalia. Ventral view: anterior margin of postepigastric scutum with a thin, procurved, sclerotized ridge (see arrow in Figure 3 View Figure 3 (d)). Dorsal view: long anterior receptaculum with narrow lumen and slightly pointed tip; bracket-shaped, slightly sclerotized semicircular ridge on either side of the procurved ridge; posteriorly directed lateral apodemes: posterior receptaculum small with undulated surface ( Figure 4 View Figure 4 (c)).

Etymology

The specific name is taken from the type locality.

Distribution

Known only from the type locality ( Figure 11 View Figure 11 ).

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Aprusia

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