A new subgenus and three new species of Sternoppia (Acari, Oribatida, Sternoppiidae) from Peru Author Ermilov, Sergey G. 0000-0002-0913-131X Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia. ermilovacari @ yandex. ru; https: // orcid. org / 0000 - 0002 - 0913 - 131 X ermilovacari@yandex.ru Author Subías, Luis S. Complutense University, Madrid, Spain. Author Shtanchaeva, Umukusum Ya. Complutense University, Madrid, Spain. Author Friedrich, Stefan 0000-0002-1668-4633 SNSB-Bavarian State Collection of Zoology, Munich, Germany. friedrich @ snsb. de; https: // orcid. org / 0000 - 0002 - 1668 - 4633 * Corresponding author friedrich@snsb.de text Zootaxa 2022 2022-10-13 5195 4 373 384 journal article 164415 10.11646/zootaxa.5195.4.4 d997e0a2-a9a8-46b9-9081-5b54a67e2df7 1175-5326 7193052 1F4AB72C-4223-42ED-A8B3-FF3B475DDCFF Key to known species of the genus Sternoppia 1. Bothridial seta bacilliform, with slightly developed, not ciliated head; interbothridial region with two pairs of tubercles; adanal setae not ciliated; body length: 660–720............................. Sternoppia ( Andoppia ) tetratuberculata sp. nov. - Bothridial seta setiform or slightly fusiform, unilaterally ciliated; interbothridial region without or with one pair of tubercles; adanal setae ciliated................................................................................. (2) 2. Cilia of bothridial seta simple......................................................................... (3) - Cilia of bothridial seta furcate....................................................................... … (5) 3. Bothridial seta without clearly developed head; notogastral seta c represented by alveolus; notogastral seta lm not reaching insertion of lp ; body length: 775–850 …........................... Sternoppia ( Sternoppia ) pocsiana Mahunka, 2006 . - Bothridial seta with clearly developed head; notogastral seta c represented by seta; notogastral seta lm reaching insertion of lp …............................................................................................... (4) 4. Notogastral seta lp distinctly shorter than lm ; interlamellar seta distinctly shorter than lm ; insertions of epimeral setae 3a distant from each; body length: 300–360…................................. Sternoppia ( Sternoppia ) chinchaoensis sp. nov. - Notogastral seta lp similar to lm in length; interlamellar seta slightly differs from lm in length; insertions of epimeral setae 3a located close to each other; body length: 347....................................................................................… Sternoppia ( Sternoppia ) quadriseta (Balogh & Mahunka, 1969) (see Balogh & Mahunka 1969b ). 5. Notogastral seta lm located clearly posteromedially to la .................................................. … (6) - Notogastral setae la and lm located on the same transverse level or lm located clearly anteromedially to la ….......... (7) 6. Bothridial seta with six or seven cilia; interlamellar seta shorter than bothridial seta; dorsal notogastral setae (e.g., la , lm , lp ) about 4/5 of distance lm–lp ; body length: 273–322 …........ Sternoppia ( Sternoppia ) mirabilis Balogh & Mahunka, 1968 . - Bothridial seta with two or three cilia; interlamellar seta longer than bothridial seta; dorsal notogastral setae (e.g., la , lm , lp ) about 1/2 of distance lm–lp ; body length: 365–415 …........................................................................................ Sternoppia ( Sternoppia ) paramirabilis Ermilov, Sandmann, Marian & Maraun, 2013 . 7. Notogastral setae la and lm located on the same transverse level …............................................ (8) - Notogastral setae lm located clearly anteromedially to la ….................................................. (9) 8. Bothridial seta without head; rostrum pointed; notogastral seta c distinctly longer than other notogastral setae; 10 pairs of notogastral setae ( p 3 present); body length: 426–450 …................................................................................ Sternoppia ( Sternoppia ) boliviana Balogh & Mahunka, 1969 (see Balogh & Mahunka 1969b ). - Bothridial seta with head; rostrum with one pair of lateral tubercles; notogastral seta c similar to other notogastral setae in length; nine pairs of notogastral setae ( p 3 absent); body length: 209–237 …........................................................................... Sternoppia ( Sternoppia ) fissurata Ermilov, Sandmann, Marian & Maraun, 2013 . 9. Dorsal notogastral setae (e.g., la , lm , lp ) about 1/2–1/4 of distance lm–lp .................................... … (10) - Dorsal notogastral setae (e.g., la , lm , lp ) about 3/4 of distance lm–lp or as distance lm–lp …....................... (12) 10. Notogastral seta c represented by alveolus; body length: 331–357.................................................................................................. … Sternoppia ( Sternoppia ) incisa Balogh & Mahunka, 1977 . - Notogastral seta c represented by seta …................................................................ (11) 11. Rostrum with one pair of lateral tubercles; bothridial seta without head; notogastral lyrifissure ia located anteromedially to insertion of c ; anterior part of notogaster not striate; body length: 262–295........................................................................ … Sternoppia ( Sternoppia ) paraincisa Ermilov, Sandmann, Marian & Maraun, 2013 . - Rostrum without tubercles; bothridial seta with large clavate head; notogastral lyrifissure ia located posterolaterally to insertion of c ; anterior part of notogaster longitudinally striate; body length: 252–267.................................................................................................. … Sternoppia ( Sternoppia ) striata Mahunka, 1983 . 12. Epimere I without heavy striate or reticulate pattern ….................................................... (13) - Epimere I with heavy striate or/and reticulate pattern ….................................................... (14) 13. Notogastral seta c represented by seta; notogastral setae la , lm , lp longer than other notogastral setae; epimeres I, II with sparse tubercles; body length: 465–525.................................. … Sternoppia ( Sternoppia ) americaensis sp. nov. - Notogastral seta c represented by alveolus; notogastral setae la , lm , lp similar to other remaining notogastral setae in length; epimeres I, II without tubercles; body length: 290 …......... Sternoppia ( Sternoppia ) brasiliensis Franklin & Woas, 1992 . 14. Epimere I with reticulate and striate pattern simultaneously; body length: 267–317.................................... Sternoppia ( Sternoppia ) reticulata Balogh & Mahunka, 1969 (see Balogh & Mahunka 1969a ; see also Balogh & Mahunka 1978 ). - Epimere I with only striate pattern (reticulate pattern absent) …............................................. (15) 15. Bothridial seta thickened, without clear head; body length: 365–405 …................................................................................................ Sternoppia ( Sternoppia ) vicina Balogh & Mahunka, 1980 . - Bothridial seta with large clavate head …............................................................... (16) 16. Epimere I with one pair of holes; six pairs of genital setae; body length: 196–208 …...................................................................................... Sternoppia ( Sternoppia ) minor Balogh & Mahunka, 1980 . - Epimere I without holes; five pairs of genital setae; body length: 534–615.................................................................................... … Sternoppia ( Sternoppia ) sphaerodendron Balogh & Mahunka, 1979 .