Bonnetina hobbit, Ortiz & Francke, 2017

BONNETINA HOBBIT View in CoL SP. NOV.

( FIGS 1, 2, 5E, 11D, 23; TABLES 1, 4)

urn:lsid:zoobank.org:act:3DE47C47-E375-46AE-9DCB-32B3990AD15B

Bonnetina ‘Zotoltitlan_3722’ – Ortiz & Francke, 2016: figs. 1–5, 7.

Types (n = 1): Holotype. ♀ a ( CNAN-T1075 ex-3722). MEXICO: Guerrero State: Mártir de Cuilapán municipality: 2.8 km road Apango to Zotoltitlán: Barranca del Tigre : 17.7297°, –99.3051°: 1300 masl. 23/IX/2012. David Ortiz, Jorge Mendoza, Jesús Cruz and Gerardo Contreras, cols. Under a stone in ecotone between tropical deciduous forest and grassland.

Etymology: The specific name is a noun in apposition after the hobbits, fictional humanoid beings in the novels ‘The Hobbit’ and ‘The Lord of the Rings’, by the English writer John Ronald Reuel Tolkien. The hobbits are little, peaceful people, who do not hesitate to face powerful adversaries using cleverness and cunning in lack of physical strength. In its only known locality, this species lives in apparent syntopy with the much larger Bonnetina papalutlensis .

Diagnosis: Morphology. Males are unknown. The single known female differs from most Bonnetina by having domiform-low spermatheca. It differs from the female of B. tindoo by having sub-circular sternum (instead of sub-oval), from B. alagoni and B. aviae , by having a reduced urticating hairs patch, and from B. juxtantricola and B. unam , in that the scopula on metatarsus I covers only the distal 1/2 of the segment (instead of the distal 3/4). DNA. Diagnostic COI nucleotides (9): 40 (C), 42 (T), 105 (C), 117 (C), 192 (C), 378 (C), 486 (G), 813 (G), 954 (T). COI p -distances to other species above 9%; intra-specific distances less than 2% (Appendices S1, S5).

Species delimitation methods: Integrative ( Ortiz & Francke, 2016); this study: HG barcoding and PTP.

Description

Holotype female: Some quantitative characters are given in Table 4. Colour and pubescence. Carapace covered by scarce and short sepia pubescence on a dark brown background ( Fig. 11D). Femora dark brown. Rest of leg and pedipalpal segments medium brown. Patellae longitudinal stripes poorly marked and light brown. Prosoma. Caput moderately elevated and fovea deep and procurved. Posterior area of carapace bears a few thick erect setae. Eight eyes disposed in two rows on markedly elevated tubercle; anterior eye row procurved; posterior row, recurved. Ocular mask present ( Fig. 23B). Ocular quadrangle width, 1.02; length, 0.62. Clypeus width, 0.16. AME circular, diameter, 0.28; ALE elliptical, greater diameter, 0.32; PME ovoid, greater diameter, 0.20; PLE elliptical, greater diameter, 0.22. Sternum ( Fig. 23A) slightly convex to its centre, covered uniformly by erect thick hairs and other hairs much smaller; with three pairs of sigillae, placed opposite to coxae I, II and III. Labium sub-trapezoidal; middle length, 0.90; anterior width, 0.75; posterior width, 1.35. Appendage segment lengths. Palp: femur, 3.2; patella, 2.3; tibia, 2.2; tarsus, 2.3; Total, 10.0. Leg I: femur, 4.2; patella, 2.9; tibia, 3.2; metatarsus, 2.2; tarsus, 1.9; Total, 14.4. Leg II: femur, 3.6; patella, 2.4; tibia, 2.3; metatarsus, 2.2; tarsus, 1.9; Total, 12.4. Leg III: femur, 3.2; patella, 2.3; tibia, 1.9; metatarsus, 2.6; tarsus, 1.9; Total, 11.9. Leg IV: femur, 4.4; patella, 2.2; tibia, 3.4; metatarsus, 4.2; tarsus, 2.7; Total, 16.9. Leg IV > I> II > III. Appendage spination. Pedipalp: femur p0-0-1; tibia p0-1-0 v0-1-2. Leg I: femur p0-0-1; tibia v0-1-0; metatarsus v0-1-1. Leg II: femur p0-0-1; tibia p0-1-0 v0-1-0; metatarsus v1-0-2. Leg III: femur p0-0-1 d0-0-1; tibia p0-2-0 r1-1-0 v1-2-2; metatarsus p1-2-1 r0-2-0 v1-3-3. Leg IV: tibia r1-0-1 v1-2-3; metatarsus p0-2-1 r0-1-1 v2-2-4. Spine cluster in ventral base of metatarsus II absent. Appendage setation. Femora of pedipalps and legs I and II prolaterally covered by a pad of simple and ciliated hairs. Femora IV retrolateral zone covered by a pad of ciliated hairs. Pedipalpal trochanters prolateral surface with thick simple hairs. Metatarsal scopulae. On legs I and II, apical 1/2 of the segment; on legs III, apical 1/3; on legs IV, apical 1/4. Tarsal scopulae. On legs I, divided by a 2–3 hairs wide band of non-adhesive thin hairs; on legs II, divided by a 3–4 hairs wide band of thick hairs; on legs III, divided by a 4–5 hairs wide band of thick hairs; on legs IV, divided by a 3–5 hairs wide band of very thick hairs. Claw tufts very dense on every leg. Abdominal urticating hairs. Type III, in dorsal circular patch. Sexual features. Single domiform-low spermatheca ( Fig. 23C, D). It is strongly asymmetrical: fully sclerotized in ventral view, but dorsally only at the apical half. GenBank accession numbers. COI: KP757189 View Materials . ITS1: KP757264 View Materials . Preservation state. The specimen is in good condition, stored in a jar with 80% ethanol. Genital area and left leg II are in plastic vials inside the jar. Right leg III is preserved in 96% ethanol at −20 °C for molecular studies.