Genome/transcriptome analysis of the chigger mite Leptotrombidium pallidum, a major vector for scrub typhus, with a special focus on genes more abundantly expressed in larval stage

•The genome size of L. pallidum was determined to be 193 Mb and 15,842 genes were predicted.•A total of 10,885 protein-coding genes were constitutively expressed in all four stages.•A total of 4,078 genes were differentially expressed in all four stages.•Whole genome amplification is a reliable option for genome sequencing of a single tiny individual.