Figures 70–72 in Observations on Antennal Morphology in Diptera, with Particular Reference to the Articular Surfaces between Segments 2 and 3 in the Cyclorrhapha

Figures 70–72. Antennae of Cryptochetidae. (70) Cryptochetum sp., seg. 3 of left antenna, medial view. (71) Librella sp., left seg. 2, lateral view. (72) The same, left seg. 3, medial view. bf, basal foramen; bh, basal hollow; pi, sensory pits; sc, sacculus.