Immature stages of the genus Oxythyrea (Coleoptera: Scarabaeidae: Cetoniinae) with a key to third instar larvae, and notes on the biology of the genus Vondráček, Dominik Hadjiconstantis, Michael Šípek, Petr Zootaxa 2018 2018-10-01 4486 4 401 434 [491,626,1839,1865] Insecta Cetoniinae GBIF Animalia Coleoptera 21 422 Arthropoda family     1 Respiratory plate of (thoracic) spiracle oval or round, bullar opening narrow and tiny, respiratory plate covering almost entire area of the spiracle ( Fig. 13 A)................................................................ first instar larva  - Thoracic spiracle with well-defined c-shaped respiratory plate and well-developed bulla............................. 2   2 Thoracic spiracle with bulla without ecdysial scar ( Fig. 13B), if ecdysial scar present ( Fig. 13C) then pali slender, distinctly shorter and less sclerotized when compared to tegillar setae ( Fig. 13I; compare with Fig. 13J). Not aplicable for species without distinctly developed raster (rows of pali), i. e. in Europe for larvae of the genus  OsmodermaLePeletier & Audinet-Serville, 1828..................................................................................... 2nd instar larva  - Thoracic spiracle with well-developed bulla and well-developed ecdysial scar ( Fig. 13C), pali of raster normally developed ( Fig. 13J)................................................................................third instar larva 1913894006 A 22 423 1 A