Sinanapis wuyi, Jin, Chi & Zhang, Feng, 2013

Jin, Chi & Zhang, Feng, 2013, A new species of the genus Sinanapis Wunderlich & Song (Araneae, Anapidae) from China, Zootaxa 3681 (3), pp. 289-292 : 289-291

Sinanapis wuyi sp. nov.

( Figs 1–12 )

Type material. Holotype 3, CHINA, Fujian Province, Wuyi Mountains: Nankeng (27°56ʹN, 118°06ʹE), 6 August 2010, F. Zhang leg.

Diagnosis. Sinanapis wuyi can easily be distinguished from S. lingituba Lin & Li, 2012 by the larger dorsal scutum, the much shorter embolus and the patternless abdomen. The new species resembles S. crassitarsus in having a similar body size, modified cusps on the metatarsus and tarsus I, complicated palpal patellar apophyses and a long, distally filiform embolus; but it can be distinguished by: 1) the presence of AMEs ( Figs 1, 4 ); 2) the much larger and nontransparent dorsal scutum ( Figs 1, 3 ); 3) the femur I with two rows of cusps ventrally ( Fig. 5 ); 4) the smooth DPA ( Figs 7, 8, 11, 12 ; in S. crassitarsus the DPA has many teeth); 5) the spine-shaped BRPA ( Figs 7–12 ).

Etymology. The species name is derived from the type locality.

Description. Male. Total length 1.77; prosoma 0.89 long, 0.68 wide; opisthosoma 0.98 long, 0.91 wide. Diameter of eyes: AME 0.03, ALE 0.09, PME 0.06, PLE 0.08. Interdistances of eyes: AME–AME 0.01, AME–ALE 0.06, ALE–ALE 0.16, PMEs contiguous, PME–PLE 0.08, PLE–PLE 0.26, ALE and PLE contiguous. MOA 0.13 long, front width 0.07, back width 0.12. Clypeal height 0.33. Measurements of legs: leg I 3.41 (1.11, 0.34, 0.90, 0.42, 0.64), II 2.60 (0.81, 0.31, 0.61, 0.31, 0.56), III 1.80 (0.52, 0.17, 0.44, 0.24, 0.43), IV 2.20 (0.70, 0.21, 0.57, 0.28, 0.44). Leg formula: 1243.

Carapace red-brown, longer than wide ( Fig. 1 ). Thoracic region rugose at anterior and posterior margin; cephalic pars distinctly raised, highest at the ocular area, with three setae on midline, two setae behind PLEs and several setae near the posterior margin ( Figs 1, 3, 4 ). Eight eyes in four diads, AMEs smallest, ALEs largest; from dorsal view anterior eye row straight, posterior eye row procurved ( Fig. 1 ). Chelicerae brown, promargin with two small and one large teeth, the distal two small teeth on a common protuberance ( Fig. 4 ). Labral spur large, labium fused with anterior margin of sternum ( Figs 2, 4 ). Sternum brown, reticulated, modified with pits ( Fig. 2 ). Legs yellow brown; tibiae I–IV with two trichobothria dorsally and metatarsi I–III with one trichobothrium dorsally; femur I with two rows of cusps ventrally; tibia, metatarsus and tarsus I with paired cusps ventrally; patellae I–IV distally with one dorsal spine. Abdomen darkish; dorsal scutum brown, smooth and lustrous; laterals with sclerotized spots ( Figs 3, 5, 6 ); ventral scutum present. Spinnerets with an annular sclerotized plate ( Figs 2, 3 ).

Palp ( Figs 7–12 ). Femur distally swollen with membranaceous part prolaterally. Patella sclerotized, mixed membranaceous stripes; with three apophyses: the basal retrolateral apophysis spine-shaped, broad at the base and very sharp at the tip; the distal retrolateral apophysis triangular from ventral view; the dorsal apophysis short and broad, with blunt tip. Palpal tibia without any apophysis. Embolus long, strongly sclerotized, distally filiform. Tegulum smooth and flat. Cymbium short and simple.

Female unknown.

Distribution. Known only from the type locality.

Figures

FIGURES 1 – 6. Sinanapis wuyi sp. nov. 1. male habitus, dorsal view; 2. same, ventral view; 3. same, lateral view; 4. male carapace and chelicerae, anterior view; 5. male femur I, retrolateral view; 6. male tarsus and metatarsus I, retrolateral view. Scale bars: 0.5 mm (1 – 3, 6); 0.2 mm (4 – 5).

FIGURES 7 – 12. Sinanapis wuyi sp. nov. 7 – 8. male left palp, prolateral view; 9 – 10. same, ventral view; 11 – 12. same, retrolateral view. Scale bars: 0.1 mm (7 – 12).