Eupterotegaeus Berlese, 1916

Ermilov, Sergey G., 2024, Ontogenetic instars of the oribatid mite Eupterotegaeus nortoni sp. nov. (Acari, Oribatida, Cepheusidae) from U. S. A., Zootaxa 5485 (1), pp. 49-61 : 50

Genus Eupterotegaeus Berlese, 1916

Type species: Tegeocranus ornatissimus Berlese, 1908

Generic diagnosis. Adult. With character states of Cepheusidae (e.g. Sitnikova 1975; S. Bernini & Bernini 1990; Weigmann 2006; Norton & Behan-Pelletier 2009). Body size: Medium-sized to large (length about 400–1000). Integument: Body and legs covered by thick layer of cerotegument. Notogaster and partially prodorsum often foveolate. Prodorsum: Rostrum rounded or truncate. Lamellar cusps long, projecting well beyond rostrum, truncate, anteromedially well separated or connected, with or without medial toothlike process. Translamella present or absent. Prolamella, sublamella and sublamellar porose area absent. Tutorium present, with triangular cusp. Sometimes with rostral and interlamellar teeth. Rostral and lamellar setae short or medium-sized, setiform; interlamellar seta short, setiform or spiniform; bothridial seta usually with slightly or well-developed head; exobothridial seta absent. Interbothridial tubercles present or absent; postbothridial tubercles present; dorsosejugal porose area, dorsophragma and pleurophragma absent. Notogaster: Anterior notogastral margin slightly convex medially. Humeral region with short triangular process. Pteromorph and octotaxic system absent. Ten (sometimes fewer—7, 8, 9—if seta c or some posterior setae absent) pairs of notogastral setae (centrodorsal part of notogaster without setae) mostly short, setiform, inserted on tubercles. Gnathosoma . Subcapitulum diarthric. All subcapitular setae setiform. Palp with setation: 0-2-1-3–9(+ω); solenidion bacilliform, coupled with eupathidium mediodistally. Axillary saccule absent. Chelicera chelate-dentate, with two setae. Epimeral and lateral podosomal regions: Epimeral setal formula: 3-1-3- 3; epimeral setae comparatively short, setiform. Enantiophysis 4 usually present. Pedotectum I represented by large scale, pedotectum II represented by small scale. Humeral porose area not observed. Circumpedal carina absent. Discidium present. Anogenital region: Six pairs of genital, one pair of aggenital, two pairs of anal, and three pairs of adanal setae comparatively short, setiform. Marginal porose area absent. Adanal lyrifissure located close and lateral to anal plate. Legs: All legs monodactylous or heterotridactylous. Porose areas present on all femora and on trochanters III, IV.