Lactistomyia dimidiata (Bellardi)

Hybos dimidiata Bellardi, 1861:197 (preoccupied by Hybos dimidiatus Walker, 1852) Hybos sequens Melander, 1902:249; Bezzi, 1909:305;

Lactistomyia dimidiata; Melander, 1928:35; Smith, 1967:14 (catalogue) Lactistomyia sequens; Curran, 1931:7 (key); Smith, 1967:14 (catalogue).

The type of L. dimidiata could not be obtained and no other specimen of this species is known. Melander (1902) redescribed and renamed Hybos dimidiata as Hybos sequens . Later Melander (1928) transferred those species to Lactistomyia based on R4+5 and M1 veins convergent although this species do not have a remarkably curved hind tibia, one of the principal characteristics in which Melander based his genus.

The original description (Bellardi, 1861) is poorly informative. L. dimidiata probably belongs to a species group lacking strongly curved hind tibia, together L. lepida and L. paranaensis, based on description made by Melander (1902), and could be inserted in couplet 2 of the identification key above.