Neopicobia, Skoracki., 2011

Skoracki, Maciej, Sikora, Bozena & Spicer, Greg S., 2016, A review of the subfamily Picobiinae Johnston and Kethley, 1973 (Acariformes: Prostigmata: Syringophilidae), Zootaxa 4113 (1), pp. 1-95 : 38-39

Key to species of the genus Neopicobia

(Females)

1. Hysteronotal shields well developed, bearing bases of setae d1 and e2. Agenital and genital plates present … / freya species group /............................................................................................. 2

- Hysteronotal shields reduced to small rings surrounded bases of setae d1 or absent. Agenital and genital plates absent … / anthi species group /........................................................................................ 4

2. Pygidial shield with well developed wing-like lobes. Setae 4c situated out of coxal fields IV.............................................................................................. N. hepburni Glowska and Laniecka, 2014

- Pygidial shield without wing-like lobes. Setae 4c situated on coxal fields IV...................................... 3

3. Length ratios of setae vi: ve: si 1:1.8:2–2.2, f1: f2 1:4.5–5.5 times. Agenital plates fused to genital plate. In males, setae d2 are about 3.5–4 times longer than e2 .............................................. N. ea Skoracki and Unsoeld, 2014

- Length ratios of setae vi: ve: si 1:1.3–1.5:1.5–1.7, f1: f2 1:11. Agenital plates not fused to genital plate. In males, setae d2 are 9 times longer than e2...................................................... N. freya Skoracki and Unsoeld, 2014

4. Setae f1 situated out of pygidial shield.......................... N. troglodytes ( Skoracki, Hendricks and Spicer, 2010)

- Setae f1 situated on pygidial shield....................................................................... 5

5. Hysteronotal shield as small punctate rings surrounded bases of setae d1 ..................................................................................................... N. cardinalis ( Skoracki, Hendricks and Spicer, 2010)

- Hysteronotal shields absent............................................................................. 6

6. Setae ag1 and ag3 no more than twice longer than ag2 ....................................................... 7

- Setae ag1 and ag3 4–5 times longer than ag2............................ N. modularis ( Skoracki and Magowski, 2001)

7. Setae ag1 and ag3 twice longer than ag2 .................................................................. 8

- Setae ag1 and ag3 1.4–1.6 times longer than ag2 ............................................................. 9

8. Coxal fields III and IV densely punctate. Pygidial shield punctate... N. carpodacus ( Skoracki, Hendricks and Spicer, 2010)

- Coxal fields III and IV apunctate. Pygidial shield apunctate.................................. N. anthi ( Fritsch, 1958)

9. Coxal fields I and II apunctate. Length of setae si, c1, d1 and e2 70 –75, 105, 80–95 and 85–100, respectively...................................................................................................... N. pari sp. nov.

- Coxal fields I and II punctate. Length of setae si, c1, d1 and e2 165–175, 180–190, 165–170 and 155–170, respectively.............................................................. N. ictericus ( Skoracki and Glowska, 2010) comb. nov.