Betasyringophiloidus species

Skoracki, Maciej, 2011, Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840, Zootaxa 2840 (1), pp. 1-414 : 97

Key to Betasyringophiloidus species

(Females)

1. Each branch of peritremes with no more than 10–12 chambers. Dorsal setae thick.................................. 2

– Each branch of peritremes with 13–14 chambers. Dorsal setae thin............................................. 3

2. Length ratio of setae vi: si 1:4.7–5.5. Setae ag3 1.2–1.3 times longer than ag1 ...................... B. saxicolus sp. nov.

– Length ratio of setae vi: si 1:3. Setae ag3 1.7–1.8 times longer than ag1.................................................................................................... B. motacillae ( Bochkov and Mironov, 1998) comb. nov.

3. Setae ag1 and ag2 subequal in length. Setae c1, c2 and d1 shorter than 170. Length of stylophore and movable cheliceral digit 150 and 110–115 respectively......................................................... B. phoenicurus sp. nov.

– Setae ag1 1.6–1.8 times longer than ag2. Setae c1, c2 and d1 longer than 190. Length of stylophore and movable cheliceral digit 170–180 and 140 respectively.................................... B. schoeniclus (Skoracki, 2002) comb. nov.