Key to species of the Trechosia intermedia group

1 Scutellar stria parallel to elytral suture ........................................................................................................ 2

– Scutellar stria convergent towards elytral suture ....................................................................... T. humeralis

2 Total body length> 4mm, largest spine of internal sack longer than parameres (without setae). Microsculpture of sutural interval isodiametric to weakly transverse (length/width ratio of mesh approximately 1:1 to 2:1) ........................................................................................................................... T. intermedia sp.nov.

– Total body length <4mm, largest spine of internal sack shorter than parameres (without setae). Microsculpture of sutural interval more transverse (length/width ratio of mesh approximately 5:1 to 10:1).............. ............................................................................................................................... T. kogelbergensis sp.nov.