The adults grow up to 10–13 millimetres (0.39–0.51 in) long. The most of their body is black, with a bright red mesonotum. Antennae are no longer than the head, the third articulation of antennae is composed of five segments, the stylet of two segments. The eyes are dark and quite hairy. Scutellum is hairy and mesonotum shows two strong apico-lateral spines. Scutum has two strong lateral spines, placed between the transverse suture and the insertion of the wings. The abdomen is relatively wide. The wings are dark.[10][11]
Biology
The predatory larvae of this species develop in ant nests, such as Lasius fuliginosus (synonym Formica fuliginosa) (Formicidae).[12]
Bibliography
Rozkošný, R. 1998. Chapter 24. Family Stratiomyidae. Manual Palaearct. Dipt. 2: 387-411.
Joachim Haupt, Hiroko Haupt: Fliegen und Mücken. Beobachtung, Lebensweise. 1. Auflage. Naturbuch-Verlag, Jena und Stuttgart 1995, ISBN3-89440-278-4.
^Schrank, F. von Paula (1781). Envmeratio insectorvm Avstriae indigenorum. Augustae Vindelicorum [=Augsburg]: Eberhardi Klett et Franck. pp. xxiv + 548 + [4] pp., 4 pls. Retrieved 10 July 2021.
^ abFourcroy, A.F. de (1785). Entomologia parisiensis. Parisiis [=Paris]: Aedibus Serpentineis. pp. viii + 544 pp.
^Latreille, P.A. (1805). Histoire naturelle, generale et particuliere, des crustaces et des insectes. Tome quatorzième. "An XIII". Paris: Dufart. pp. 432 pp., pls. 104–112.
^Rondani, Camillo (1856). Dipterologiae Italicae Prodromus. Vol: I. Genera italica ordinis Dipterorum ordinatim disposita et distincta et in familias et stirpes aggregata. Parmae [= Parma].: A. Stocchi. pp. 226 + [2] pp.
^Zeegers, T.; Schulten, A. (2022). Families of Flies with Three Pulvilli: Field Guide Northwest Europe. Graveland: Jeugdbondsuitgeverij. pp. 256pp. ISBN9789051070682.