Lomanius bulbosus, Zhang, Chao, Kury, Adriano B. & Zhang, Feng, 2013

Zhang, Chao, Kury, Adriano B. & Zhang, Feng, 2013, Notes on Bonea Roewer, 1914 and Lomanius Roewer, 1923 (Opiliones: Laniatores: Podoctidae), with the description of three new species from China, Zootaxa 3630 (2), pp. 201-224 : 217-220

Lomanius bulbosus sp. nov.

Figs. 58–76

Type material. 3 holotype, CHINA: Yunnan Province, Dali City, Mt. Diancang, about 2600 m alt., [N 25. 97°, E 99.87°], September 20, 2008, Z.Z. Yang leg. (MHBU-Opi-YZZ 080660), 1 3 1 Ƥ (MHBU-Opi- YZZ 080661 – 080662) paratypes, same data as holotype.

Diagnosis. Scutal areas without any long median spines, the median spine between eyes bent in a square angle, inconspicuous bridge tubercles on scutum, proximal segment of chelicera in ventral surface prolaterally with a row of five teeth, the shape of lamellar sack of penis dorsally resembles an upside-down light bulb, with the penis at rest.

Etymology. The specific name is derived from the Latin word “ bulbosus ” meaning bulbous, refers to the shape of lamellar sack of penis.

Description. Male (holotype) habitus as in Figs. 58–59 . Coloration: entire body rusty yellow, only median area of carapace with dark brown reticulations; each side of carapace dark brown; lateral ridges of the scutum margined with dark brown; ventral coloration same as dorsal, mottled with yellowish brown to dark brown; chelicerae and pedipalpus yellowish, both of them with brown reticulate markings above; legs yellowish to brown, femur and tibia lighter.

Dorsum. Dorsal scutum subrectangular, posterior margin a little wider than anterior margin and sides slightly constricted twice; abdomen broadly rounded posteriorly. Carapace with a row of six tubercles on each side of front margin near antero-lateral corner. Eyes separated; each eye with three anterior tubercles of which the most lateral one extending forward to touch tubercle from the frontal margin of carapace; enlarged, basally widened median spine with one branches protruding upward between eyes. Posterior to the median elevation on carapace without any large median spines, surface of carapace clothed with coarse rounded hair-tipped granules, median areas of scutum with somewhat enlarged hair-tipped tubercles. Scutum with five areas, first with a median line. 1–5 scutal grooves each with numerous obscure tubercular bridges. 1–3 free tergites likewise with a row of hair-tipped granules. Lateral ridges of scutum with a row of coarse rounded hair-tipped granules. Anal plate with small hairtipped granules.

Venter. All coxae and genital operculum granulate. Coxa II with an enlarged retrolateral tubercle at tip of the margin. Coxa IV widened, with several enlarged hair-tipped tubercles on the prolateral surface. Free sternites each with a transverse row of hair-tipped granules. Tracheal stigmata concealed.

Chelicera ( Figs. 60–62 ). Proximal segment S-shaped; dorsal surface with four teeth prolaterally; ventral surface retrolaterally with a row of six large teeth, with a row of 4–5 teeth prolaterally. Second segment armed with 8–9 teeth on prodorsal surface and five blunt teeth on proventral surface. Fingers relatively strong, inner edges toothed as illustrated in Fig. 62 : one moundy MBT, four tiny MMT, three MDT, one crest FBT, one big and two small FMT, and three FDT.

Pedipalpus ( Figs. 64–65 ). Coxa dorsally with one strong bifurcated setiferous tubercle. Trochanter with three setiferous tubercles ventrally, and one obscure setiferous tubercle dorsally. Femur with five setiferous tubercles ventrally, and a setiferous tubercle on the prolateral distal side. Patella with a setiferous tubercle retrolateral and two prolateral setiferous tubercles. Tibia with three prolateral and four retrolateral setiferous tubercles. Tarsus with three prolateral and two enlarged and two small retrolateral setiferous tubercles. Tarsal claw shorter than tarsus, slightly curved.

Legs. Trochanter I dorsally with one enlarged tubercle, ventrally with two enlarged tubercles, femur I dorsally with a row of 10 setiferous tubercles, ventrally with a row of nine setiferous tubercles, patella, tibia and metatarsus with many setiferous tubercles, arranged more or less in five rows ( Fig. 63 ). Femur, patella, and tibia of leg II–-IV with numerous setiferous tubercles. Tarsi III–IV with bare double claws, with scopulae. Tarsal formula: 2/2/4/4.

Penis ( Figs. 3–4 , 70–76 ). Shaft elongate, somewhat widened distally. Ventral side of the apical part with a median cleft. Setae arranged as follow: 10 dorsal setae, six ventral setae, and six lateral setae. Basal sac sunken into truncus. Lamellar sack somewhat resembles the shape of upside-down light bulb at rest, distal margin with obscure serrated rim. Clasping lobe bifurcated, protruding beyond distal margin of glans. Stylus between the clasping lobe nearly sunken into lamellar sack, stylar tip blunt ended.

Female. ( Fig. 66 ). In general appearance and coloration, similar to the male, but with more asymmetrical trapezoid scutum, different dentition of inner edges of cheliceral fingers: one tiny MBT, two tiny MMT, three MDT, two FBT, one FMT, and three FDT ( Fig. 67 ).

Ovipositor as illustrated in Figs. 68–69 . Each lobe with two ventral and three dorsal setae. Tip of each seta blunt ( Fig. 69 ).

Measurements. Male holotype (female paratype): body 3.98 (3.77) long, 2.86 (2.81) wide at the widest portion, scutum 3.42 (3.32) long. Pedipalpus claw 0.53 (0.45) long. Penis 1.49 long. Measurements of left pedipalpus and right legs as in Table 4 .

Habitat. This species was collected by pit trap in the forest of Mt. Diancang.

Variation (male paratype). Body 3.72 long, 2.91 wide at the widest portion, scutum 3.42 long. Distribution. China: Yunnan (Mt. Diancang).

Figures

FIGURES 58 – 65. Lomanius bulbosus sp. nov. 58. Male body, lateral view. 59. Dorsal view. 60. Left chelicera of male, prolateral view. 61. Retrolateral view. 62. Distal segment of the left chelicera, male, frontal view. 63. Right leg I of male, retrolateral view. 64. Left pedipalpus of male, retrolateral view. 65. Patella, tibia, and tarsus of male left pedipalpus, dorsal view. Scale bars: 1 mm.

FIGURES 66 – 76. Lomanius bulbosus sp. nov. 66. Female body, dorsal view. 67. Distal segment of left chelicera, female, frontal view. 68. Ovipositor, dorsal view. 69. Ventral view. 70. Penis, dorsal view. 71. Distal part of penis, dorsal view. 72. Lateral view. 73. Ventral view. 74. Expanded penis, dorsal view. 75. Lateral view. 76. Ventral view. Scale bars: 1 mm (66); 0.5 mm (67, 70); 0.25 mm (68 – 69, 71 – 76).

FIGURES 3 – 4. Lomanius bulbosus sp. nov. 3. Distal part of penis, dorsal view. 4. Lateral view. CL = clasping lobe; DS = dorsal setae; La = lamella sack; LS = lateral setae; S = stylus; VP = ventral plate; VS = ventral setae. Scale bars: 0.25 mm.

Tables

TABLE 4. Pedipalpus and leg measurements of the male holotype (female paratype) of Lomanius bulbosus sp. nov.

	Trochanter	Femur	Patella	Tibia	Metatarsus	Tarsus	Total
Pedipalpus	0.50(0.38)	1.18(0.88)	0.80(0.70)	0.75(0.60)		0.68(0.55)	3.91(3.11)
Leg I	0.38(0.38)	1.73(1.53)	0.77(0.66)	0.97(0.87)	1.33(1.17)	0.61(0.51)	5.79(5.12)
Leg II	0.43(0.43)	2.55(2.04)	0.82(0.66)	1.94(1.53)	1.79(1.53)	1.12(1.02)	8.65(7.21)
Leg III	0.43(0.43)	1.84(1.53)	0.82(0.66)	1.48(1.28)	2.04(1.84)	0.61(0.51)	7.22(6.25)
Leg IV	0.53(0.53)	2.40(1.89)	0.82(0.77)	1.68(1.68)	2.81(2.55)	0.61(0.51)	8.85(7.93)