Epicriopsis

Narita, João Paulo Z. & De Moraes, Gilberto J., 2016, A new species of Epicriopsis Berlese (Acari: Mesostigmata: Ameroseiidae) from Brazil, with a key to the world species of the genus, Zootaxa 4114 (4), pp. 477-484: 482-483

publication ID

http://doi.org/10.11646/zootaxa.4114.4.7

publication LSID

lsid:zoobank.org:pub:1E493B90-E6B3-4AFE-924B-B3E34F2D8D9D

persistent identifier

http://treatment.plazi.org/id/B0254349-F225-FFF9-FF60-C483FA2FD535

treatment provided by

Plazi

scientific name

Epicriopsis
status

 

Key to world Epicriopsis   species

Two taxonomic keys to separate Epicriopsis   species have been published, one by Bregetova (1977), for species from the former USSR, and the other by Kandil (1978), for world species (not including other three species then known). Two other Epicriopsis   species have been described since that time by Halliday (1997) and Ma (2002).

The following key is based on the species known to date from adult females. Epicriopsis mirabilis Willmann 1956   , collected in the Czech Republic, was not included because it was only described from male specimens. Also not included was Epicriopsis (Actinoseius) terrificans Berlese, 1916   , given that the details available for that species do not allow its adequate recognition (see also Mašán & Halliday, 2014).

1. Dorsal shield without tubercles, but with rows of spine-like structures in the central region, bearing 25 pairs of setae............................................................................ Epicriopsis atuberculatus   n. sp., Brazil

- Dorsal shield ornamented with star-like or minute circular tubercles, without rows of spine-like structures, bearing at most 24 pairs of setae........................................................................................ 2

2. Dorsal shield ornamented with minute circular tubercles, and with a pair of incisions on posterolateral margins; a single dorsal shield seta longer than half length of dorsal shield........................ Epicriopsis walteri Halliday, 1997   , Australia

- Dorsal shield ornamented with star-like tubercles and without incisions; at least six pairs of dorsal shield setae longer than half length of dorsal shield................................................................................. 3

3. Anterior margin of epistome rounded to triangular........................................................... 4

- Anterior margin of epistome with a spine-like projection..................................................... 9

4. Without Z setae laterad of J 4 ................................................ E. horridus ( Kramer, 1876)   , Europe

- With a short Z seta (Z 4) laterad of J 4 ...................................................................... 5

5. Seta j 5 short, not reaching base of j 6 ............................................. E. suedus Karg, 1971 b   , Sweden

- Seta j 5 long, surpassing base of j 6 ....................................................................... 6

6. With ventrianal shield bearing a pair of opisthogastric setae in addition to circumanal setae.................................................................................................... E. palustris Karg, 1971 a   , Germany

- With anal shield, bearing only circumanal setae............................................................. 7

7. With six pairs of opisthogastric setae on unsclerotised cuticle; z 5 smooth............... E. stellata   Ishikawa, 1972, Japan

- With five pairs of opisthogastric setae on unsclerotised cuticle; z 5 serrate......................................... 8

8. Seta j 3 (mentioned as i 2 in original description) reaching base of j 4 (mentioned as i 3); j 4 40 long; j 6 (mentioned as i 5) serrate, 28 μm long; anal shield ovoid.................................................. E. baloghi Kandil, 1978   , Hungary

- Seta j 3 (mentioned as i 2) not reaching base of j 4 (mentioned as i 3); j 4 28 long; j 6 (mentioned as i 5) smooth, 6 long; anal shield rounded................................................................ E. hungarica Kandil, 1978   , Hungary

9. Seta j 5 short (mentioned as D 2, 57 µm); j 6 of intermediate length (mentioned as D 4, 52 μm).. E. jilinensis Ma, 2002   , China

- Seta j 5 long (at least 125 µm); j 6 (mentioned as i 5) short or long; respectively 10 or 92 μm.......................... 10

10. Seta j 5 and j 6 respectively 150 and 10 μm long........................ E. langei Livshitz & Mitrofanov, 1975   , Ukraine

- Seta j 5 and j 6 respectively 125 and 92 μm long..................................... E. rivus Karg, 1971 b   ; Germany