Fannia arcuata Chillcott, 1961

(Figs 1B, 3D, 4D, 5D, 6D, 9, 16)

Diagnosis. Fore tarsi brown (Fig. 9D). Hind coxa bare posteriorly. Hind femur strongly curved dorsoventrally with pre-apical swelling on v surface, with a pv tuft with 5 long setae (apically curled and twice longer than width of femur) on the swelling; with a complete row of long av setae (about 3 times longer than width of femur) and a complete row of pv setae (as long as femur width) reaching the v swelling (Fig. 9F). Hind tibia with a and ad surfaces covered with a full row of short setae. Wing slightly brownish (Figs 9B, 9C). Syntergosternite with 2 short lateral setae.

Material examined. Mexico. Mexico. Sierra de Guadalupe, San Francisco, Coacalco, 19°36′37′′N, 99°05′20′′W, Trampa aérea 1 con cerdo, 8.vii.2019, Nuple, E., 1 male (CNIN) .

Distribution. Mexico (State of Mexico, Mexico City).

Remarks. Fannia arcuata is the unique Mexican species of Fannia pretiosa -group with hind femur strongly curved dorsoventrally, and with a complete row of long av and pv setae. This species was only known by the original description (Chillcott, 1961). Here we present the first record for State of Mexico.