Lanceacheyla Xia, Klompen and Childers

Xia, Bin, Klompen, Hans & Childers, Carl C., 2011, A new genus and species of Cheyletidae (Acariformes: Prostigmata) from citrus trees in Florida, Zootaxa 2796, pp. 29-36 : 30

Lanceacheyla Xia, Klompen and Childers , gen. nov.

Type species: Lanceacheyla whartoni Xia, Klompen and Childers , sp. n.

Diagnosis Female: palp tarsus with 4 setae, 2 comb-like and 2 sickle-like. Palp claw with 5–6 teeth. Palp tibia with 3, genu with 2, and femur with 3 setae. Rostral shield with granulate texture. Peritremes arched, with 6–7 pairs of links. Eyes absent. Dorsum with an anterior and a posterior shield, both with similar squamiform setae; humeral setae (c2) lanceolate, elongate, almost twice as long as dorsal shield setae. Modest hypertrichy of “ c ” setae on anterior dorsal shield, posterior shield with 9 setae. Setae ps1–ps3 and outer seta on coxal field III smooth, filiform. All legs shorter than idiosoma, all tarsi with smooth claws and well-developed empodia. Solenidion Φ on tibia II present, tibia I seta v” and femur III seta v absent.

Male: most characteristics as in female but humeral setae (c2) narrowly squamiform, not lanceolate; longer than dorsal setae. Posterior dorsal shield with 7, rather than 9, setae.

Teleonymph: most characteristics as in female but dorsum with one large anterior and five smaller posterior shields. All dorsal shield setae narrowly squamiform; humeral setae (c2) lanceolate, almost twice as long as other dorsal shield setae.

Etymology. The generic name is a combination of “lancea” (lance) to indicate the shape of the humeral setae and “cheyletia”, a common generic ending in Cheyletidae .