A new genus and species of mites of the family Caraboacaridae (Acari: Heterostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Iran Author Hajiqanbar, Hamidreza Author Khaustov, Alexander Author Kamali, Karim Author Saboori, Alireza text Zootaxa 2008 1788 57 65 journal article 10.5281/zenodo.182503 368bb55c-8d20-483e-a461-b2a8309df2e8 1175-5326 182503 Genus Minicaraboacarus Hajiqanbar and Khaustov n. gen. Type species: Minicaraboacarus quadridiscalis Hajiqanbar and Khaustov sp. n. by its monotypy. 1. (Number of solenidia in parentheses) Diagnosis : Female: Gnathosoma is nearly two times wider than its length. Stylets relatively short, less robust and recurved basally. Idiosoma: dorsum; Tergite EF with only one pair of seta f , seta e absent. Tergite H with seta h 1, seta h 2 absent. Idiosomal ventrum: Epimeres 1 with one pair of simple seta 1 b and one pair of suckers (modified setae 1 a ), epimeres 2 with two pairs of seta 2 a and 2 b and one pair of large suckers (modified setae 2 c ). Epimeres 3 and 4 with three pairs of setae each. Aggenital plate with two pairs of aggenital setae. Pseudoanal segment with one pair of setae. Legs ( Figs 3–6 ): leg I; five segmented, tarsus without claws and setal formula: Tr 1- Fe 4- Ge 3-Ti 6(1)-Ta 12(1). Leg II; tarsus with 2 claws and large empodium. Its setal formula Tr 1- Fe 3- Ge 3-Ti 4(1)-Ta 7(1). Leg III; tarsus with 2 claws and large empodium. Its setal formla Tr 1- Fe 2- Ge 3-Ti 4(1)-Ta 7. Leg IV; thicker than other legs, tibia and tarsus distinctly separated. Tarsus without claws, with large empodium. Seta tc” modified, its setal formla Tr 1- Fe 2- Ge 2-Ti 4(1)-Ta 6. Differential diagnosis: The new genus differs from the genus Caraboacarus by the absence of seta e and h 2 on hysterosomal dorsum (present in Caraboacarus ), by presence of large suckers on epimeres II (absent in Caraboacarus ), by absence of solenidia ω2 on tarsus I and φ2 on tibia I (present in Caraboacarus ), by presence of 12 seta on tarsus I: p’ , p” , tc’ , tc” , ft’ , ft” , pl’ , pl” , pv’ , pv” , u’ , u” (in Caraboacarus seta u’ and u” absent, Fig. 7 ), by distinctly separated tibia and tarsus IV (in Caraboacarus tibia and tarsus IV coalesced into tibiotarsus). Etymology : The name of the new genus refers to exteremly small size of the body relative to species of the genus Caraboacarus .