Indoxysticus lumbricus, Tang & Li, 2010

Tang, Guo & Li, Shuqiang, 2010, Crab spiders from Xishuangbanna, Yunnan Province, China (Araneae, Thomisidae) 2703, Zootaxa 2703, pp. 1-105 : 19-21

Indoxysticus lumbricus sp. nov.

Figs 10–12

Type material. Holotype: ♂, CHINA: Yunnan: Xishuangbanna, Mengla County, Menglun Town , Menglun Nature Reserve , Lvshilin Forest Park , Limestone tropical seasonal rain forest (N21º54.555', E101º16.860', 615 m), 29 November 2009, G. Tang and Z.Y. Yao (Tang-Yao_No.32).

Paratype: 1 ♀, same data as holotype .

Etymology. The specific epithet is taken from the Latin word lumbricus (earthworm), referring to the embolus earthworm-shaped, noun in apposition.

Diagnosis. The general appearance of this new species is much similar to that of Indoxysticus minutus (Tikader, 1960) . However, this species is different from Indoxysticus minutus by: the larger body size and the epigyne without transverse hood (cf. Benjamin and Jaleel 2010: 162, figs 3–4, 8–15), and it is placed in this genus provisionally.

Description. Male (holotype measured): Total length 3.70. Prosoma 1.50 long, 1.65 wide; opisthosoma 2.20 long, 1.90 wide. Cephalothorax wider than long, dorsal shield of prosoma slightly convex, yellow, sides blackish brown, with long setae sparsely. Clypeus with 7 long setae and a large white marking. Eye measurements: AME 0.06; ALE 0.16; PME 0.05; PLE 0.14; AME–AME 0.25; AME–ALE 0.15; PME–PME 0.21; PME–PLE 0.40. MOA length 0.30 with front width 0.37 and back width 0.30. Clypeus height 0.19. Chelicerae blackish brown, gnathocoxae, labium and sternum yellow. Legs yellow with grayish black spots and black annuli. Leg spination: femur I prolateral 1-1-1, I–IV dorsal 1-1; patella I–IV dorsal 1-1; tibia I–II dorsal 1-1, pro- and retrolateral 0-1, ventral 1(prolateral)-2; metatarsus I–II ventral 2-2-2. Leg formula: 2134; leg measurements: I: 5.60 (1.60, 2.10, 1.20, 0.70); II: 6.50 (1.90, 2.50, 1.30, 0.80); III: 4.75 (1.55, 1.70, 0.90, 0.60); IV: 4.55 (1.50, 1.60, 0.90, 0.55). Opisthosoma dorsally yellow with grayish black markings and white spots, dorsally also with long setae; sides grayish white, venter yellow.

Palp ( Figs 10 B–D, 12 A–B). VTA digitiform, RTA longer than VTA, distally sharp; tegulum slightly swollen; embolus short, twisted.

Female (one of the paratypes measured): Total length 4.10. Prosoma 1.75 long, 2.00 wide. Opisthosoma 2.50 long, 2.30 wide. Eye measurements: AME 0.05; ALE 0.11; PME 0.04; PLE 0.10; AME–AME 0.31; AME–ALE 0.23; PME–PME 0.26; PME–PLE 0.48. MOA length 0.36 with front width 0.41 and back width 0.34. Clypeus height 0.20. Legs yellow with red spots and black annuli. Spination: femur I prolateral 1-1-1, I–IV dorsal 1-1; patella I–IV dorsal 1-1; tibia I–II dorsal 1-1, ventral (prolateral) 1-1-1; metatarsus I–II ventral 2-2-2. Leg formula: 2134; leg measurements: I: 6.00 (1.80, 2.30, 1.15, 0.75); II: 7.10 (2.30, 2.60, 1.30, 0.90); III: 5.45 (1.85, 2.00, 1.00, 0.60); IV: 5.20 (1.70, 1.90, 1.00, 0.60).

Epigynum ( Figs 11 B–C, 12 C–D). Copulatory openings small, visible; copulatory duct short, copulatory chamber wider than spermatheca; spermatheca twisted.

Distribution. China (Yunnan).

Remarks. This species is similar to Haplotmarus plumatilis Simon, 1909 in general appearance but differ greatly in genital organs.