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Data on the habitats of soldier-fly larva Beris heptapotamica Pleske, 1926 are reviewed for the first time. Morphological diagnostic characters differing the larva from those of other species from the genus Beris are discussed. Key to larvae of 7 palaearctic Beris species is given.

Imago (female) of Oriental species Rosapha obscurata de Meijere, 1916 (Diptera: Stratiomyidae) is redescribed. The morphology and biology of larva of this species are studied and described for the first time. Larvae live under bark of drying trunks. The similarity of imago and larvae of Oriental genus Rosapha Walker, 1859 and Palaearctic genus Maakiana Krivosheina, 1973 (= Takagimyia Nagatomi, 1975) is discussed.

Imaginal characters of Palaearctic species of Adoxomyia cinerascens (Loew, 1873) and Oriental species of A. heminopla (Wiedemann, 1819) are improved. The morphology and biology on larva of Adoxomyia cinerascens with additional data on larva of A. heminopla are studied for the first time. Imago are well distinguished by the structure of antennae, pollination of frons and position of spines on scutellum, larvae by the structure of integument and the topography of setae