two new species of choreutinula (collembola: hypogastruridae) from america and china

Abstract

Two new species of Choreutinula Paclt 1944 are described and illustrated. One American, from North Dakota, which differs front other species by the presence of 4+4 setae on ventral tube and small setae p3 on Abd. V. The other species is from China, resembles Choreutinula inermis (Tullberg, 1871), is the second species of the genus recorded from Asia, and it differs from other species by the presence of 4+4 setae on ventral tube, as the American species, but shows nine tubercles between setae p1-p1 on Abd. IV and has the unguiculus as a minute bristle. A key for the six species now known in the genus is given.