Onchodellus siculus (Berlese, 1892)

Mojahed, Samaneh, Hajizadeh, Jalil, Hosseini, Reza & Ahadiyat, Ali, 2017, Contribution to the Pachylaelapidae (Acari: Mesostigmata) fauna in some parts of Guilan province of Iran, Persian Journal of Acarology 6 (4), pp. 269-285 : 274

Onchodellus siculus (Berlese, 1892)

Diagnosis

Male with dorsal shield 576–630 long, 408–440 wide (length/width ratio: 1.41–1.43). Dorsal shield setae J4 72–75, J5 51–55 (J4/J5 ratio: 1.36–1.41). Sternogenital and ventrianal regions each bearing five pairs of setae. Opistogasteric and lateral idiosoma with 6–7 pairs of setae. Sternogenital region reticulated. Ventrianal region lineate medially. Cheliceral spermatodactyl elongated, about twice as long as cheliceral movable digit, increasingly tapered distally; sperm ducts positioned symmetrically in all sections of spermatodactyle. Terminal part of tarsus II with one spur-like seta pl1.

Material examined – 1 male, forest areas of the Imamzadeh Hashem , from soil under poplar tree, 18 January 2016 ; 1 male, Astaneh-Ashrafieh Safrabasteh forest , from soil under oak tree, 14 June 2016 .

Distribution and habitats in Iran – This species was found in soil, foliage, and in association with a scarabaeid beetle, Pentodon sp. , from Chaharmahal and Bakhtiari (Shahrekord), Hamedan (Region not mentioned), Kerman (Region not mentioned), West Azerbaijan (Miandoab Plain) provinces ( Ahmadi 2002; Haddad Irani-Nejad et al. 2003; Rostami et al. 2010; Babaeian and Kazemi 2011).

World distribution – Finland, Germany, Hungary, Korea, Latvia and Slovakia ( Karg 1993; Salmane 2001; Salmane and Kontschán 2005; Mašán 2007; Huhta 2016; Keum et al. 2016).

Note – This is the first record of this species in Guilan province.