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Holotype ♂: Indonesia, Sumatra, Harapan, 02°11'15.2"S, 103°20'33.4"E, secondary lowland rainforest, October 2012, M. Jochum, A. Barnes (LIPI). Paratypes: 1♂, same data as holotype (LIPI); Indonesia, Sumatra, Harapan, 02°09'09.9"S, 103°21'43.2"E, secondary lowland rainforest, 3♂, October 2012, M. Jochum, A. Barnes (LIPI) (ZMH–A0001339); 02°09'29.2"S, 103°20'01.5"E, secondary lowland rainforest, 1♂, October 2012, M. Jochum, A. Barnes (ZMH–A0001346); 02°09'09.9"S, 103°21'43.2"E, secondary lowland rainforest, 1♂, October 2013, B. Klarner (ZMH–A0001221); 1♂, October 2013, B. Klarner (ZMH–A0001222); 1♂, October 2013, B. Klarner (ZMH–A0002644); 01°54'39.5"S, 103°16'00.1"E, rubber plantation, 1♂, October 2013, B. Klarner (ZMH–A0001220); 02°09'09.9S 103°21'43.2"E, secondary lowland rainforest, 1♂, October 2017, B. Klarner (ZMH–A0001212).
The specific name is an arbitrary combination of letters.
Males of Ablemmaandriana sp. n. can be distinguished from most Ablemma species with the exception A.erna Lehtinen, 1981, A.merotai Lehtinen, 1981 and A.malacca Lin and Li, 2017, by the form of the embolus (Figs 5–7) and the cheliceral boss (Fig. 47). From A.erna and A.malacca it can be separated by the bifid apical end of the embolus (Figs 5–7); the embolus of the latter species is not split (see Lehtinen 1981, figs 171-172; Lin and Li et al. 2017, figs 8B, C). From A.merotai males are differentiated by their rounded cheliceral boss bearing a small tubercle (Fig. 47), meanwhile the chelicera basal boss is weakly developed in latter species (see Lehtinen 1981, fig. 163).
Male (holotype). Measurements: Total length: 1.03; carapace length: 0.44; carapace width: 0.40; abdomen length: 0.59; abdomen width: 0.44; clypeus height: 0.19. Length of legs: I 0.97 (0.33, 0.11, 0.24, 0.13, 0.16); II 0.95 (0.31, 0.11, 0.21, 0.16, 0.16); III 0.82 (0.26, 0.09, 0.18, 0.15, 0.15); IV 1.12 (0.36, 0.11, 0.28, 0.19, 0.18).
Carapace: Brownish orange; pars cephalica smooth apically, slightly concave; apico-laterally with a fringe of 5 pits, each bearing setae, and two small tubercles at apical end; sides finely reticulated; pars thoracica finely reticulated, sloping gradually (Figs 1, 4); clypeus brownish orange; sloping forward; finely reticulated (Figs 3, 4). Sternum: Brownish orange; slightly wider than long; reticulated except along midline (Fig. 2). Chelicerae: Brownish orange; cheliceral basal boss curved, bearing one small tubercle; cheliceral apophysis large and triangular; transparent lamina thin (Fig. 47). Eyes: 6 in compact group (Fig. 1). Abdomen: Dorsal scutum brownish orange, smooth, covered with setae (Fig. 1). Laterally with 4 brownish orange stripe-like scuta, slightly separated (Fig. 4). Ventrally covered by 4 smooth scuta: pulmonary scutum brownish orange, with darker, oval book-lung covers; postgenital scutum small and straight, shorter than preanal scutum; preanal scutum large, rectangular; anal scutum conical, short and curved. Legs: Brownish orange; femora I–IV rugose ventrally; tibia I with small ventral tubercle; tarsus I swollen. Palp: Segments yellowish brown. Cymbium short, as long as patella; bulb yellowish white, pyriform (Figs 5, 6). Sperm duct thick, narrowing with sharp angle; embolus dark, sharp, slightly bifid apically with spine-like embolic apophysis; basal projection almost as long as embolus (Fig. 7). Female. Unknown.
Most specimens were collected in secondary lowland rainforest; one specimen was collected in a rubber plantation.
Known only from the type locality, Harapan, Sumatra.
- Fardiansah, R; Dupérré, N; Widyastuti, R; Potapov, A; Stefan Scheu, ; Harms, D; 2019: Description of four new species of armoured spiders (Araneae, Tetrablemmidae) from Sumatra, Indonesia ZooKeys, (820): 95-118. doi
- Lehtinen P (1981) Spiders of the Oriental-Australian region. III. Tetrablemmidae, with a world revision.Acta Zoologica Fennica162: 1–151.