A new species of Mictognathus (Acari: Halacaridae) from the great barrier reef

Abstract

Mictognathus colemani Otto, n. sp., is described from the Great Barrier Reef. It is the third known species in its genus and the first species of Mictognathus known to occur in tropical waters. Distinguishing features are dorsal lamellae on the telofemora, membranous flaps on anterior and posterior dorsal plates, lack of distinct areolae or costae, relatively long median claws on all legs, and the lack of corneae. Some of these characters are similar to those of the mictognathine species Corallihalacarus chilcottensis, but it is unknown whether they indicate a close relationship. A key to species of Mictognathus is presented.