Thorax of Algon sphaericollis. K, L: 1st larval instar; A–J: mature larva. A ventral view of thorax; B, K lateral view of thorax; C, L dorsal view of thorax; D gland of pronotum; E microstructure of mesonotum; F–G setae of thorax; F microseta on pronotum; G, J simple seta on pronotum; H frayed seta on mesonotum; I frayed seta on metanotum. — Abbreviations: Ce, cervicosternum; Ls, lateral sternites; Sap, sternal apophyseal pits; Eps, episternum; Cx, coxa; Sp, spiracle; Pcs, postcoxal sclerites; Avs, additional ventral sclerites; Pa, pleural apophysis; Em, epimeron; Cu, cuticle; Cs, coeloconic sensillum; Ptg, pretergal gland; Ac, anterior carinae; Pc, posterior carinae; Fs, frayed seta. I–III, segments; 1–22, code of setae; a–j, code of pores.

 
 
  Part of: Li C, Tang L (2024) Phylogenetic analysis of rove beetle subfamily Staphylininae (Coleoptera: Staphylinidae) based on the morphology of preimaginal stages, with description of larva and pupa of Algon sphaericollis. Arthropod Systematics & Phylogeny 82: 629-657. https://doi.org/10.3897/asp.82.e106391