(090/MCabs) Micraphorura absoloni (Bagnall, 1935)

*affinis (Ågren, 1903)
*handschini (Bagnall, 1949)

Micraphorura (formerly Archaphorura) absoloni is a small, soil-dwelling member of the Onychiurinae which reaches 0.9 mm in length. The anal spines are slender and straight (Fig. 1) and the post-antennal organ is small with three or four lobes (Fig. 2). Ribbed pseudocelli are present (Fig. 3) and the empodium of the foot reaches about two-thirds of the length of the claw (Fig. 4). There is no trace of a furca on the ventral side of the fourth abdominal segment. Micraphorura absoloni has a scattered distribution in England and Scotland but there are (as yet) no records from Wales or Ireland.

 

 

 

Map Micraphorura absoloni
Anal spines of Micraphorura absoloni

Fig. 1: Anal spines of Micraphorura absoloni collected from Ferriby, Yorkshire in April 1937 by R.S. Bagnall.

Post-antennal organ and two pseudocelli of Micraphorura absoloni

Fig. 2: Post-antennal organ (PAO) and two pseudocelli (pso) of Micraphorura absoloni collected from Corstophine, Scotland in April 1935 by R.S. Bagnall.

Pseudocellus of Micraphorura absoloni

Fig. 3: Pseudocellus of the same specimen of Micraphorura absoloni shown in Fig. 2.

Foot of the third leg of Micraphorura absoloni

Fig. 4: Foot of the third leg of the same specimen of Micraphorura absoloni shown in Fig. 2.

 
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