Eustochomorpha Girault, with one described species, E. haeckeli Girault, from Australia
is redescribed. Neotriadomerus Huber, gen. n. , is described, together with seven
new species, all from Australia: N. burwelli Huber, sp. n. , N. crassus Huber,
sp. n. , N. darlingi Huber, sp. n. , N. gloriosus Huber, sp. n. , N. longiovipositor
Huber, sp. n. , N. longissimus Huber, sp. n. (one of the largest species of Mymaridae),
and N. powerae Huber, sp. n. Proarescon Huber, gen. n. , is described for P.
primitivum (Huber), comb. n. , transferred from Borneomymar Huber, and P. similis
Huber, sp. n. , from Thailand. The previously unknown male of Borneomymar madagascar
Huber is described and the genus is redescribed from critical point dried and slide
mounted specimens. Triadomerini, stat. n. , is proposed to include six genera: Borneomymar
, Eustochomorpha and Neotriadomerus , and the Cretaceous Carpenteriana Yoshimoto,
Macalpinia Yoshimoto and Triadomerus Yoshimoto. Aresconini is proposed to include
five (possibly six) genera: Arescon Enock, Kikiki Huber and Beardsley, Proarescon
Huber and Tinkerbella Huber and Noyes, and the Cretaceous Myanmymar Huber and,
tentatively, also Enneagmus Yoshimoto. The two tribes are proposed as being the
earliest lineages in Mymaridae, with Neotriadomerus and Triadomerus being sister
genera to the remaining extant and extinct genera, respectively.