Morphology and distribution of the Middle Asian centipede genus Krateraspis Lignau, 1929 (Chilopoda, Geophilomorpha, Mecistocephalidae) Author Dyachkov, Yurii V. Altai State University, Lenin Avenue 61, Barnaul 656049, Russia dyachkov793@mail.ru Author Bonato, Lucio https://orcid.org/0000-0002-8312-7570 Dipartimento di Biologia, Universita di Padova, via U. Bassi 58 b, I- 35131 Padova, Italy text ZooKeys 2022 2022-04-14 1095 143 164 http://dx.doi.org/10.3897/zookeys.1095.80806 journal article http://dx.doi.org/10.3897/zookeys.1095.80806 1313-2970-1095-143 7078C72BB894447987DCCA85B07054C7 60769A0B51B35E36B9FD1515BE315D00

Table 1. Main differences between Krateraspis and the other genera of Mecistocephalidae.

Characters	Krateraspis Lignau, 1929	Arrup Chamberlin, 1912	Partygarrupius Verhoeff, 1939	Agnostrup Foddai, Bonato, Pereira & Minelli, 2003	Nannarrup Foddai, Bonato, Pereira & Minelli, 2003	Dicellophilus Cook, 1896	Anarrup Chamberlin, 1920	Proterotaiwanella Bonato, Foddai & Minelli, 2002	Tygarrup Chamberlin, 1914	Mecistocephalus Newport, 1843	Takashimaia Miyosi, 1955
clypeus: central part: areolation	yes	yes	yes	yes	yes	no	no	yes	no	yes	no
clypeus: areolation of central part compared with anterior part	fainter	similar	similar	similar	similar	no	no	similar	no	similar or fainter; sometimes non-areolate insulae	no
clypeus: posterior mid-longitudinal areolate strip	yes	yes	no	yes	yes	no	no	yes	no	yes	no
clypeus: areolation extending all along the lateral margins	yes	yes	no	no	yes	no	no	yes	no	no	no
clypeus: setae on antero-lateral corners	no	yes	no	no	no	yes	yes	no	usually yes	yes or no	no
clypeus: setae on lateral parts	no	longitudinally elongate areas	narrow transverse band	longitudinally elongate areas	longitudinally elongate areas	longitudinally elongate areas	narrow transverse band	longitudinally elongate areas	narrow transverse band	narrow transverse band	no
bucca: spiculum	no	no	no	no	no	no	no	no	no	yes	yes
labrum: anterior ala: internal margin reduced to a point	yes	yes	yes	yes	yes	yes	yes	yes	yes	no	yes
labrum: posterior ala: posterior margin: bristles	no	no	no	no	no	yes	no	no	no	usually no	no
first maxillae: coxosternite: mid-longitudinal suture	yes	no	yes	yes	yes	yes	yes	yes	yes	yes	yes
second maxillae: coxosternite: mid-longitudinal suture	no	no	no	no	no	no	yes	no	no	no	no
second maxillae: coxosternite: groove from metameric pore reaching lateral margin	yes	no	no	no	no	no	yes	yes	yes	yes	yes
second maxillary telopodite: distinctly surpassing the first maxillary telopodite	yes or no	no	no	no	no	yes	yes	no	yes	yes	yes
second maxillae: pretarsus	small claw	no or small claw	small claw	no	no	spinous tubercle	spinous tubercle	small claw	small claw	small claw	small claw
forcipular segment: tergite: width/length	~1.5	~2.0	~1.5	~2.0	~2.0	~1.5	~1.5	~1.5	~1.5	~1.5	~1.5
trunk: leg-bearing segments	45 or 53	41	41	41	41	41 or 43 or 45	41	45 or 49	43 or 45	45 or more	45
ultimate leg pair: pretarsus	no	no	no	no	no	spinous tubercle	spinous tubercle	spinous tubercle	no	no	no