Holcobunus

Tourinho, Ana Lúcia, Pinto-Da-Rocha, Ricardo & Bragagnolo, Cibele, 2015, Taxonomic notes on Holcobunus Roewer, 1910, with descriptions of three new species, and new records for Holcobunus nigripalpis Roewer, 1910 (Opiliones: Eupnoi: Sclerosomatidae), Zootaxa 4027 (3), pp. 425-436 : 427

Key for the species of Holcobunus

1. Eye mound armed with two anterior blunt, single-blunt pointed spines (Se Tourinho & Kury, 2001), femur of leg I shorter than body, femur of leg II with six pseudoarticular nodules, femur of leg IV with three pseudoarticular nodules...... H. bicornutus

- Eye mound with two rows of more than three short granules ( Fig. 3 C), femur of leg I longer than the body, femur of leg II with four, five or six pseudoarticular nodules.................................................................... 2

2. Body color black eye mound black or mound with a pair of yellowish stripes, females with light dorsal stripes and spots ( Fig. 5 ), eye, femur of leg II with five or six pseudoarticular nodules, femur of leg IV with two or three pseudoarticular nodules................................................................................................ H. uaisoh

- Body uniformly yellow ( Fig. 3 ) or background yellow or brown with white or dark stripes or stains ( Fig. 1 ), eye mound with 8– 9 short granules, femur of leg II with four or five pseudoarticular nodules, femur of leg IV with two, three or four pseudoarticular nodules.......................................................................................... 3

3. Body color uniformly yellow without stripes or stains, femur of leg II with four pseudoarticular nodules, femur of leg IV with three or four pseudoarticular nodules............................................................. H. ibitirama

- Body color yellow with dark stripes or stains on carapace and/or dorsal scute or background brown with a white arch and several white spots and stripes distributed on scute ( Fig. 1 ), femur of leg II with four or five pseudoarticular nodules, femur of leg IV with two, three or four pseudoarticular nodules........................................................... 4

4. Body color yellow (when recently collected it tends to be orange), with median posterior region of dorsal scute and anterior border of coxae covered by a faint black spot in males, females with a lateral rounded spot in the dorsal scute, dorsal black faint spot lacking (See Tourinho & Kury, 2001), femur of leg II with five pseudoarticular nodules, femur of leg IV with two or three pseudoarticular nodules.................................................................. H. nigripalpis

- Body color yellow, with abdomen with large dark median stripe along its full extent, or background brown with a white arch surrounding anterior prosoma and several white spots and stripes distributed on scute, eye mound darkish brown ( Fig. 1 ), femur of leg II with four or five pseudoarticular nodules, femur of leg IV with two, three or four pseudoarticular nodules femoral....................................................................................... H. dissimilis

Figures

FIGURE 1. Holcobunus dissimilis sp. nov. Male holotype: A, dorsal view; B, ventral view; C, lateral view. Female paratype: D, dorsal view; E, ventral view; F lateral view. Scale bars = 0.5 mm.

FIGURE 3. Holcobunus ibitirama sp. nov. Male holotype: A, dorsal view; B, ventral view; C, lateral view. Scale bars = 0.5 mm.

FIGURE 5. Holcobunus uaisoh sp. nov. Male holotype: A, dorsal view; B, ventral view; C, lateral view. Female paratype: D, dorsal view; E, ventral view; F, lateral view; Scale bars = 0.5 mm.