Trisetica Traub et Evans, 1950

Stekolnikov, Alexandr A. & Quetglas, Juan, 2019, Bat-infesting chiggers (Acariformes: Trombiculidae) of the Balearic Islands and new data on the genus Trisetica Traub et Evans, 1950, Folia Parasitologica (017) 66, pp. 1-10 : 2

Genus Trisetica Traub et Evans, 1950

Trisetica – Traub and Evans (1950): 356.

Trisetica – Vercammen-Grandjean (1965): 132; (1967): 849; (1968): 109; Stekolnikov (2018): 116 .

T y p e s p e c i e s: Trisetica melvini Traub et Evans, 1950 , by original designation.

S p e c i e s i n c l u d e d: Trisetica melvini , Trisetica aethiopica , Trisetica knighti comb. n.

D i a g n o s i s: SIF = 4 (5 in T. melvini ) B-N(b)-3-(2–3)111.0000; fsp = 7.7.7; fSt = 2.2 (6 in T. melvini ); fCx = 1.1.1; Ip = 730– 952. Cheliceral blade with tricuspid cap; galeal setae nude (in T. knighti sometimes with small cilium); palpal claw 3-pronged; palpal tarsus with 4 branched setae (5 in T. melvini ). Scutum with reduced posterior angles (peniscutum), with 1 AM, 2 AL setae and fusiform or slightly expanded sensilla covered with setules; 2 PL setae extrascutal. Eyes 2 + 2. Legs 7-segmented, 3 genualae I (2 in T. melvini ), 1 genuala II, tibiala and genuala III present, mastisetae absent, all leg coxae unisetose.