Stigmaeus Koch, 1836

Khanjani, Mohammad, Izadi, Hamzeh, Fayaz, Bahman Asali, Raisi, Hosein, Rostami, Elaheh & Doğan, Salih, 2010, Stigmaeus boshroyehensis sp. nov. (Acari: Stigmaeidae) from eastern Iran, with re-description of Stigmaeus pilatus Kuznetzov, Zootaxa 2727, pp. 34-44 : 35

Stigmaeus Koch, 1836

Type species: Stigmaeus cruentus Koch, 1836

Diagnosis. Color in life red to dark red; body narrowly to broadly oval, legs shorter than the body length; chelicerae hinged at base. Palptibial claw subequal to or slightly shorter than palptarsus; accessory claw seta or spine like; terminal eupathidia on palptarsus basally fused and split into 3 long prongs or simple; Subcapitulum with 2 pairs of subcapitular setae m and n, 2 pairs of adoral setae (or1,2), seta m anterolaterad of pharynx; dorsum covered with smooth, polygonal or reticulated shields; prodorsum with a median prodorasal shield typically large, bearing 3 pairs of setae (vi, ve, sc1) and a pair of lateral platelets which bears setae sce; eyes present or absent, with or without post ocular bodies (pob). Dorsal hysterosomal area C–F typically with 1–2 shields surrounded by 3–5 pairs of platelets, median shield with 2–3 pairs of setae; setae d1 and d2 never on same shield; humeral shields large or small, dorso or ventrolateral, bearing setae c2; intercalary shields (F) obvious, entire or divided along midline, with a pair of setae (f1). Suranal shield (H) entire or divided medially, with two or three pairs of setae (h1, h2, h3), seta h 3 may be absent or present; median zonal shield may be fused with central shield or separate bearing seta e1; lateral zonal shields usually separated and with seta e2; Endopodal shields smooth or reticulate; coxae I–II and III– IV surrounded by fused or separate endopodal shields. Leg tarsal claws robust. Intercoxal area with setae 1a, 3a and 4a; opisthosomal venter with 3–4 pairs of aggenital setae ag1-3, 4 anogenital area with 1–3 pairs of genital setae (g1-3) and 3 pairs pseudanal setae (ps1-3). Setal formulae of leg segments as follows: coxae 2, 2, 2, 1/2; trochanters 1, 1, 1/2, 1; femora 4, 4, 3, 2/3; genua 3/4/5+1ĸ, 3/4+0/1ĸ, 1/2/3, 1/2/3; tibiae 5+1φ/2φp, 5+1φp, 5+1φp, 5+1φp; tarsi 12/13/14 +1ω, 6/ 8/9/10 +1ω, 6/7/8+1ω, 6/7/8+1ω ( Summers, 1962; Khanjani & Ueckermann, 2002).