Karyotype of Thripobius javae (Girault) (Hymenoptera: Eulophidae).

A recent review of karyology of the family Eulophidae showed that many genera remain totally untouched by chromosomal investigation, among which the genus Thripobius. Karyotype analysys was carried out on Thripobius javae by a technique for single individuals. The diploid karyotype of T. Javae coinsists of two pairs of large metacentric chromosomes, three pair of shorter metacentrics and a pair of very small acrocentric chromosomes, thus showing 2n=12 and NF=22. The set of the haploid karyotype with five long bi-armed chromosomes and short acrocentric corresponds to that already reported for the Eulophidae family.