Holostethus, Karg & Schorlemmer, 2011

Karg, W. & Schorlemmer, A., 2011, New Insights Into The Systematics Of Parasitiformes (Acarina) With New Species From South America, Acarologia 51 (1), pp. 3-29 : 10

Holostethus n. gen.

Etymology — Holo = fused, entire, stethos = thorax, as to the fused shields of the sternal region.

Type-species — Holostethus longosetis n. sp.

Diagnosis — Characteristics conform with the diagnosis of the Fedrizziidae , however different to the hitherto known genera of the family. Remarkable characteristics of the new genus are the fused sternogynial -, sternal - and jugular shields, the separate endopodal shields, additional preendopodal shields, a mesogynial shield and claws at the first pair of legs. Further in ~, behind coxae IV, a big ventrianal shield is developed whereas in the hitherto known genera only a small shield, 1/3 to 1/2 the distance coxae IV to the anus, is developed.

Hitherto one species was detected in soilsamples from Ecuador:

Species pro ‐ dorsum post ‐ dorsum sternal region genital region ventrianal shield P. prionotus setae at vertex well setae I1‐I5 present st2, st3 on separate one seta on latigynial anterior with incision developed plates shield P. verticis Same as above setae I2 absent Same as above two setae on latigynial incision with shield triangular plate P. sp. n. gen.? setae s1, s2 reduced Same as above st2, st3 on a connected one seta on latigynial no incision plate shield