The Mecistocephalidae of the Japanese and Taiwanese islands (Chilopoda: Geophilomorpha) Author Published, First text Zootaxa 2007 2007-01-22 1396 1 84 journal article 1175­5334 Arrup areolatus ( Shinohara, 1957 ) Figs. 9 [1] Nodocephalus areolatus Shinohara 1957 — Zool. Mag. Tokyo 66: 187 (original description); fig. 1 Nodocephalus areolatus : Murakami 1993 — List Species Anim. Japan 5: 105 Nodocephalus areolatus : Shinohara 1999 — Pictorial Keys Soil Anim. Japan : 709; fig. 6 (703) Arrup areolatus : Foddai et al. 2003 — J. Nat. Hist. 37: 1262 Diagnosis . An Arrup species with body length reaching about 2 cm . Basal part of the medial projections of the first maxillae about 3 times as long as the distal lobe, with swollen internal margin. Distal article of the telopodite of the second maxillae without claw. Forcipular segment I with a well developed tooth, subtriangular, acute and projecting. Type material . Holotype : female, about 18 mm long, adult. Paratypes : 2 juveniles ( Shinohara, 1957 ). Type locality . ‘Okyô­daira (Chichibu)’, Honshu ( Shinohara, 1957 ). Depository of type material . Coll. K. Shinohara ( Shinohara, 1957 ). Material examined . None. Description . Body size of adults reaching at least about 2 cm . Body colour yellow, head and forcipular segment deep orange. Head about 1.5 times as long as wide. Clypeal ratio about 3.5. Clypeal setae: about 12 pairs, including one median pair anterior to the plagulae and a group on each side reaching the anterior corner. Labrum: anterior ala triangular, medial margin reduced to a vertex; posterior margin of side­pieces almost straight. First maxillae: anterior corners of coxosternum not projecting; each medial projection with 3–4 spines on the internal margin and 2 setae at mid­length; basal part very large and distally rounded, about 3 times as long as the distal lobe; distal lobe emerging abruptly from the basal part, with an acute angle; each telopodite with 2 setae at mid­length, distal lobe attenuated. Second maxillae: article I of the telopodite about 2.5 times as long as wide, article III slender, about 4.3 times as long as wide; claw absent. Forcipules: article I about 1.5 times as long as wide, distal tooth acute, and distinctly projecting outwards; article II without teeth; article III with a tubercle; tarsungulum with one distinct basal tooth. Last leg­bearing segment: sternum semicircular; about 14 pores on each coxopleuron. Distribution in the considered area . Honshu: ‘Okyô­daira (Chichibu)’ [1] ( type locality). General distribution . Only known from the type locality. Remarks . The unusual elongation of the distal article of the telopodite of the second maxillae, inferred from the original drawing, may represent a diagnostic character.