Eutegaeoidea, Balogh, 1965

Colloff, Matthew J., 2023, The oribatid mite superfamily Eutegaeoidea (Acari, Oribatida), with descriptions of new taxa from Australia and New Caledonia and a re-assessment of genera and families, Zootaxa 5365 (1), pp. 1-93 : 78-79

publication ID	https://doi.org/ 10.11646/zootaxa.5365.1.1
publication LSID	lsid:zoobank.org:pub:1DC72714-D0E8-49D8-821D-03C6B2A7AE80
DOI	https://doi.org/10.5281/zenodo.10249137
persistent identifier	https://treatment.plazi.org/id/03A2C77C-462C-FF82-C79C-B02512B8D908
treatment provided by	Plazi
scientific name	Eutegaeoidea
status

Treatment

A key to the families and genera of Eutegaeoidea

1 Anterior region of humeral process in the form of a short, shallow triangle not extending as far as bothridia ( Figs. 41n View FIGURE 41 )................................................................................ Cerocepheidae … Cerocepheus

- Anterior region of humeral process long, pointed apically, extending anteriorly as far as bothridium ( Figs. 41f–j View FIGURE 41 ) or to point between bothridia and lamellar apices ( Figs. 41 View FIGURE 41 a-e, k-m)...................................................... 2

2 Humeral process originating on anterolateral margin of notogaster ( Figs. 41 View FIGURE 41 a-e).................................... 3

- Humeral process originating on margin of notogaster at its widest part ( Figs. 41 View FIGURE 41 k-m)................................ 7

3 Humeral process waisted basally ( Fig. 41 View FIGURE 41 a-c); pedotectum I sub-rectangular in lateral outline; pedotectum II pointed or sub-rectangular; discidium pointed ( Figs. 43 View FIGURE 43 a-c).................................................... Eutegaeidae …4

- Humeral process broad basally ( Fig. 41d, e View FIGURE 41 ); pedotectum I sub-rectangular in lateral outline; pedotectum II lobed or sub-rectangular; discidium lobed ( Fig. 43d, e View FIGURE 43 )........................................... Neoeutegaeidae fam. nov....6

4 Humeral process strongly curved, with distinct basal notch ( Fig. 41c View FIGURE 41 ); lamellar cusp with long, incurved spine ( Fig. 42c View FIGURE 42 ); notogastral setae of l and h series in centrodorsal position ( Fig. 12a View FIGURE 12 )................................... Neseutegaeus

- Humeral process more-or-less straight, with basal protrusion ( Figs. 41a, b View FIGURE 41 ) or V-shaped plate ( Fig. 41d View FIGURE 41 ); lamellar cusp pointed ( Fig. 42b View FIGURE 42 ) or with two teeth ( Figs. 42a, d View FIGURE 42 ).................................................................. 5

5 Lamellar cusp with single point ( Fig. 42d View FIGURE 42 ); humeral processes narrow, thin, transparent, delicate ( Fig. 41b View FIGURE 41 )..... Atalotegaeus

- Lamellar cusp with two teeth ( Fig. 42a View FIGURE 42 ); humeral processes not narrow or transparent ( Fig. 41a View FIGURE 41 )................ Eutegaeus

6 Lage mites (>700 μm long); notogastral setae of l and h series thin, setiform ( Fig. 18a View FIGURE 18 ); humeral processes with rugose ornamentation ( Fig. 41d View FIGURE 41 ).................................................................... Humerotegaeus

- Small mites (<350 μm long); notogastral setae of l and h series stout, curved, spiniform ( Fig. 20a View FIGURE 20 ); humeral processes smooth or with globular cerotegument ( Fig. 41e View FIGURE 41 )......................................................... Neoeutegaeus

7 Humeral processes with large, pointed anterior lobe and with 2-4 smaller lobes of lighter cuticle positioned posteriorly........................................................................................ Compactozetidae …8

- Humeral process lacking posterior lobes.................................................................. 10

8 Lamellae fused with each other apically, folded ventrally and fused with rostrum; with ovoid foramina lateral of fusion with rostrum ( Figs. 42f View FIGURE 42 )......................................................................... Compactozetes

- Lamellae with short, blunt, free cusps with or without a translamella ( Figs. 42g, h View FIGURE 42 )................................. 9

9 Apices of humeral processes triangular ( Fig. 41h View FIGURE 41 ); notogastral setae emerging from alveoli; dorsosejugal scissure transverse; pedotectum I with long apical spine, pd II large lobe ( Fig. 43h View FIGURE 43 )........................................ Sadocepheus

- Apices of humeral processes bilobed ( Fig. 41g View FIGURE 41 ); notogastral setae on tubercles; dorsosejugal scissure convex; pedotectum I lacking long apical spine; pd II short spur ( Fig. 43g View FIGURE 43 )................................................. Hamotegeus

10 Humeral process short, rounded apically, extending only as far as bothridium; rostrum lobed or incised (Figs. 411, j)................................................................................ Bornebuschiidae fam. nov …..11

- Humeral process long, pointed apically, extending well anterior of bothridium; rostrum rounded, entire (Figs. 411, j)..... 12

11 Lamellae very long with sharp apices, extending well beyond rostrum ( Fig. 42j View FIGURE 42 )......................... Dicrotegaeus

- Lamellae not extending beyond rostrum ( Fig. 42i View FIGURE 42 )................................................. Bornebuschia

12 Lamellae fused apically ( Figs. 42k,l, m View FIGURE 42 ); notogastral setae short, thin, positioned marginally or sub-marginally on convex notogaster ( Figs. 35a View FIGURE 35 , 36a View FIGURE 36 )................................................................ Pterozetidae …13

- Lamellae separate, with free cusps ( Fig. 43m View FIGURE 43 ); notogastral setae long, with spinose ornamentation, positioned marginally and projecting vertically from concave notogaster ( Figs. 37a View FIGURE 37 ).................. Porrhotegaeidae fam. nov ….. Porrhotegaeus

13 Anterior of lamellae strongly concave ( Fig. 42l View FIGURE 42 ); pedotectum I massive, with apical spine, lateral margin straight, longitudinal; pd II thin, pointed ( Fig. 43l View FIGURE 43 )..................................................................... Dudichella

- Anterior of lamellae convex or slightly concave ( Fig. 42k, l View FIGURE 42 ); pedotectum I and pd II rectangular ( Fig. 43k View FIGURE 43 ) or pd I with curved anterolateral projection and pd II narrow, pointed ( Fig. 43l View FIGURE 43 )............................................ Pterozetes