This study presented the first sequencing and analysis of the mitochondrial genome of
Paraclius curvispinus
Yang and Saigusa, 2001, a predator fly belonging to the family Dolichopodidae (long-legged fly). The complete mitochondrial genome of
P. curvispinus
was 16,882 bp long (GenBank accession number: PP498802), which contained 13 protein-coding genes, 22 tRNAs, 2 rRNAs, and a control region. The nucleotide composition of mitochondrial genome of
P. curvispinus
was 38.48% of A, 36.00% of T, 10.67% of G, and 14.85% of C. Maximum-likelihood (ML) analysis revealed the phylogenetic relationships within the subfamily Dolichopodinae, suggesting the following grouping: ((
Dolichopus
+
Lichtwardtia
)+((
Hercostomus
+
Poecilobothrus
)+
Gymnopternus
))+
Paraclius
. This study provides a basis for discussing the evolution of mosquito larval predation habits of Dolichopodinae.