Aprusia kataragama Grismado and Deeleman, 2011

Grismado, Cristian J., Deeleman, Christa & Baehr, Barbara, 2011, Te Goblin Spider Genus Aprusia Simon, 1893 (Araneae: Oonopidae), American Museum Novitates 2011 (3706), pp. 1-24 : 11-16

Aprusia kataragama Grismado and Deeleman , new species

Figures 22–35 , 43–44 , 62–63 , 67

TYPE MATERIAL: Male holotype, two males and four female paratypes from Sri Lanka, Uva

Province: Monaragala District: Kataragama Peak , ca. N 6°23′, E 81°20′, dry litter, 18 Aug. 1981,

C.L. Deeleman and P. R. Deeleman (deposited in RMNH PBI _OON 15034). ETYMOLOGY: Te specific epithet is a noun in apposition taken from the type locality .

DIAGNOSIS: Males and females differ from A. vestigator by having the sternum longer than wide (figs. 26, 33) and by having three spines on the prolateral side of the first femora. Males also differ from those of A. vestigator and A. kerala by the very elongate, fusiform, copulatory bulb (fig. 43). Females are very similar to those of A. veddah , although the abdominal dorsal scutum is relatively short (fig. 29) and the anterior receptaculum and the lateral apodemes in the internal genitalia are also shorter (fig. 44). Te procurved ridge of the postepigastric scutum is wider than in A. veddah and have a thinner margin (fig. 35). A. kataragama is the only species that lack the clawlike setae on the tarsi III and IV (figs. 62–63).

DESCRIPTION: Male (holotype). Total length 1.58. CEPHALOTHORAX: Carapace pars cephalica slightly elevated in lateral view (fig. 24), sides smooth; nonmarginal pars cephalica setae present, scattered; nonmarginal pars thoracica setae light, needlelike. Clypeus curved downward in front view (fig. 27); setae absent. Eyes all eyes circular; posterior eye row procurved from above; ALE separated by less than their radius, PLE-PME touching (figs. 25, 27). Sternum longer than wide, posterior margin not extending posteriorly of coxae IV. Mouthparts: Setae light; labium wide, with a procurved indentation; two subdistal normal setae. ABDO- MEN: Dorsum soft portions white. Dorsal scutum covering about ½ of abdomen, not fused to epigastric scutum (figs. 22, 24). Postepigastric scutum short, almost rectangular (fig. 23). LEGS: White. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): leg I: femur, pv0-0-1-1-1; rv0-0-1-1; tibia, v2-2-2-2-2-0; metatarsus, v2-2-0; leg II: femur, pv0-0-1-1-1; rv0-0-0-1; tibia, v2-2-2-2-2-0; metatarsus, v2-2-0; leg III: patella, d2/1; tibia, d1-2; v1ap; leg IV: patella, d2; tibia, d1-2, v1ap. Tarsi I–IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Epigastric region with sperm pore small, situated at level of anterior spiracles. Palp proximal segments white; embolus small, nearly straight; cymbium with distal patch of setae; bulb slender, elongated, more or less fusiform (fig. 43).

Female (paratype). Total length 2.20. As in male except as noted. CEPHALOTHORAX: Carapace yellowish white, broadly oval in dorsal view (fig. 32), with rounded posterolateral corners; lateral margin straight; nonmarginal pars cephalica setae present in one row; marginal setae absent. Eyes (figs. 32, 34): ALE largest; posterior eye row procurved from front; ALE-PLE separated by less than ALE radius, PME touching. Sternum yellowish white, lateral margins with narrow extensions between coxae; setae sparse, light, originating from surface. Mouthparts: Chelicerae, endites, and labium yellowish white. Chelicerae straight; promargin without teeth. Female palp claws absent. ABDOMEN: Book lung covers elliptical. Posterior spiracles connected by groove. Pedicel scutum extending far dorsal of pedicel. Dorsal scutum weakly sclerotized, relatively short, without color pattern, covering less than ½ of abdomen, between ¼ and ½ abdomen width, middle surface smooth, sides smooth, anterior half without projecting denticles, yellowish white (fig. 29). Epigastric scutum weakly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum weakly sclerotized, only around epigastric furrow, not fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes, yellowish white (fig. 35). Colulus represented only by setae. LEGS: Patella plus tibia I near as long as carapace. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): leg I: femur, pv0- 0-1-1-1; rv0-0-1-1; tibia, v2-2-2-2-2-0; metatarsus, v2-2-0; leg II: femur, pv0-0-1-1-1; rv0-0- 1-1; tibia, v2-2-2-2-2-0; metatarsus, v2-2-0; leg III: patella, d2; tibia: d2-2-1, v1ap; leg IV: patella, d2; tibia, d2-2-2; v1-2ap; metatarsus, d2-2; v1ap. Tarsi I–IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA (figs. 35, 44): Ventral view: posterior margin of epigastric fold with a procurved chitinized ridge. Field in front snow white. Lateral to this ridge, this species lacks the bracket-shaped sclerotized lines of A. vestigator . Dorsal view: Internal genitalia consists of a short anterior element, with a thin lumen and a slightly widened tip. In the only female examined there is no traces of posterior receptacle. Two short lateral apodemes that looks anteriorly directed in the preparation (fig. 44), although this is probably an artifact of the montage.

MATERIAL EXAMINED: Only the type series .

Figures

FIGS. 22–28. Aprusia kataragama, new species, male (paratype, PBI_OON 15034). 22–24, habitus (22, dorsal, 23, ventral, 24, lateral); 25–28, cephalothorax (25, dorsal, 26, ventral, 27, anterior, 28, lateral).

FIG. 29–35. Aprusia kataragama, new species, female paratype (PBI_OON 15034). 29–31, habitus (29, dorsal, 30, ventral, 31, lateral); 32–34, cephalothorax (32, dorsal, 33, ventral, 34, anterior); 35, epigastric area, ventral.

FIGS. 43–45. Aprusia spp. genitalia. 43–44, A. kataragama, new species, male and female paratypes (PBI_OON 15034); 45, A. veddah, new species female paratype (PBI_OON 15035). 43, male, left palp retrolateral; 44–45, vulvae, cleared, dorsal. Abbreviations: ar = anterior receptaculum, e = embolus, la = lateral apodeme, pr? = posterior receptaculum?

FIGS. 56–66. Morphology of the tarsi of Aprusia spp. 56–61, A. kerala, male, 62, A. kataragama, male; 63, A. kataragama, female; 64, A. vestigator, male; 65, A. vestigator, female; 66, A. veddah, female; 56 = tarsus I, 57 = II, 58, 65 = III, 59–63, 66 = IV. 61 = detail of the clawlike seta. Arrows = clawlike setae. Scale bars: 56–59, 62–66 = 0.05 mm; 60 = 20 µm; 61 = 10 µm.

FIG. 67. Geographic distribution of Aprusia spp. Sri Lanka: 1,