Anochetus boltoni

Collected three times in rotten logs and once in a leaf litter sample. Males have been collected in malaise samples on 20–25 Dec 2004 at 488 m in Parc National de Marojejy, Madagascar.

Identification
The species is most similar to Anochetus goodmani, but can be easily distinguished by its petiole node with a pair of large apical spines (Fisher and Smith).

Key to Anochetus of the Malagasy Region

Distribution
The distribution is limited to collections made between 450 m and 750 m in rainforest in Parc National de Marojejy and 240 m from Ambanitaza near Antalaha, Madagascar.

Distribution based on Regional Taxon Lists
Malagasy Region: Madagascar.

Castes
Queens have not been collected.

Nomenclature

 *  boltoni. Anochetus boltoni Fisher, in Fisher & Smith, 2008: 4, figs. 2a-d, 5a, 8a (w.m.) MADAGASCAR.

Worker
Measurements: maximum and minimum based on all specimens, n = 20, (holotype): HL 1.80–2.08 (1.95), HW 1.61–1.89 (1.71), CI 87–98 (88), EL 0.33–0.41 (0.36), ML 1.15–1.25 (1.20), MI 59–66 (61), SL 1.83–1.96 (1.84) SI 101–115 (107), WL 2.63–2.89 (2.73), FL 1.97–2.13 (2.03), PW 0.95–1.06 (1.00).

Blade of mandible with five teeth and denticles located along distal two thirds of blade's length. Propodeum with short teeth. Dorsolateral margin of petiole with long spine. In frontal view, petiolar margin deeply U-shaped.

Male
Measurements: maximum and minimum based on n = 2 from Madagascar: HL 0.89–0.91, HW 1.05–1.13, CI 118–125, EL 0.56–0.62, SL 0.24, SI 21–23, WL 2.20–2.24, FL 1.75–1.80.

Dorsolateral margin of petiole with acute spine.

Type Material
Holotype worker, MADAGASCAR: Antsiranana, Parc National de Marojejy, Manantenina River, 28.0 km 38° NE Andapa, 8.2 km 333° NNW Manantenina, 14°26′12″S, 049°46′30″E, 450 m, sifted litter, rainforest, 12–15 Nov 2003 (coll. B. L. Fisher et al.): CASENT0104542. Paratype. 8 workers with same data as holotype but pins coded, CASENT0487895, CASENT0487896, CASENT0487897, CASENT0006943. (,, CASC); CO1 Barcode from paratype collection and coded CASENT0487895-D01.